hp LaserJet 9000 9000n•9000dn•9000hns service
HP LaserJet 9000 Series printer Service_____________________
© Copyright Hewlett-Packard Company, 2001 Warranty Trademark Credits All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. The information contained in this document is subject to change without notice. Adobe® and PostScript® are trademarks of Adobe Systems Incorporated which may be registered in certain jurisdictions.
Table of contents List of tables List of figures 1 Product information Product features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Product specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Product overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 External assembly locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control panel menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Using a menu map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Menu map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Retrieve job menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Information menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional tray 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Tray 4 driver PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Sequence of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Pickup and feed . . . . . . . . . . . . . . . . . . . . . . . . . .
Transfer guide assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Left assemblies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Duplexer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fuser assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back assemblies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 Troubleshooting Troubleshooting process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199 Basic troubleshooting process flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 Preliminary operating checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 General troubleshooting information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203 Miscellaneous problems and solutions . . . . . . . . . . . . . . . . . . . .
8 Parts and diagrams Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ordering parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Consumables, supplies, accessories, FRUs, and documentation . . . . . . . Common hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Illustrations and parts lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of tables Table 1. Features of the HP LaserJet 9000 Series printers . . . . . . . . . . . . . . . . 16 Table 2. Configuration comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Table 3. Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Table 4. Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Table 5. Environmental specifications . . . . . . . . . . . . . . . . . . . . .
Table 50. Drum feed drive assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Table 51. Fuser delivery drive assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Table 52. Cartridge lifter assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Table 53. 500-sheet trays (tray 2 and 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Table 54. PIU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of figures Figure 1. Sample identification label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 2. Front assembly locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 3. Back assembly locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 4. Interface connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 5. Optional accessories . . . . . . . . . . . . . . . . . .
Figure 49. Full bin condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 50. View of front and right side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 51. View of back and left side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 52. Removing the right top cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 53. Removing the left top cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 106. Removing the left side cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 Figure 107. Removing the right side cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 Figure 108. Removing the back covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161 Figure 109. Removing tray 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162 Figure 110. Removing the rollers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 165. Sample test print page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 166. Test print switch location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 167. Sample test print page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 168. 2000-sheet feeder label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 169. Stapler/stacker label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Product information Chapter contents Product features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Product specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 External assembly locations . . . . . . .
Product features HP LaserJet 9000 printer (C8519A) The HP LaserJet 9000 printer comes standard with 64 MB RAM, wide-format printing, and two 500-sheet trays (tray 2 and tray 3). HP LaserJet 9000n printer (C8520A) The HP LaserJet 9000n printer comes standard with 64 MB RAM, wide-format printing, two 500-sheet trays (tray 2 and tray 3), a 100-sheet multipurpose tray (optional tray 1), and an optional HP Jetdirect print server.
Table 1. Features of the HP LaserJet 9000 Series printers (continued) Expandability All models accept: l Optional tray 1, a 100-sheet or 10-envelope multipurpose tray for automatic and manual feeding of envelopes, labels, transparencies, custom-sized media, 98 by 191 mm (3.8 by 7.5 in) to 312 by 470 mm (12.3 by 18.5 in), and heavy paper. l Optional tray 4, a 2000-sheet tray that supports letter, legal, B4, A4, 11 by 17 in, A3, executive, B5, and custom 182 by 210 mm (7.2 by 8.3 in) to 297 by 431.8 mm (11.
Product specifications Identification The model number and printer serial number are listed on an identification label located on the rear cover. The model number is alphanumeric, such as C8519A. The serial number contains information about the country of origin, the revision level, the production code, and production number of the printer. An example of a serial number is USBB123456. The top label also contains power rating and regulatory information. See figure 1.
Table 3. Physical specifications HP LaserJet 9000 HP LaserJet 9000n/ 9000dn HP LaserJet 9000hns Height 600 mm (23.6 in) 600 mm (23.6 in) 1036.4 mm (40.8 in) Width 990.8 mm (39.0 in) 1115.8 mm (44.4 in) 1788.2 mm (70.4 in) Depth 1001 mm (42.7 in) 1001 mm (42.7 in) 1001 mm (42.7 in) Weight (without print cartridge) 63.5 kg (140 lb) 9000n, 69.4 kg (153 lb) 9000dn, 76.2 kg (158 lb) 76.2 kg (158 lb) Table 4.
Product overview External assembly locations Figure 2. Face-up bin Test print switch Control panel Front cover Power switch Right cover Tray 3 Tray 2 Front assembly locations Top covers Face-down bin Back cover Left cover Power receptacle Figure 3.
Interface connections Parallel connector HP Jetdirect print server (optional) Foreign interface connector (not used) I/O slots HP Fast InfraRed Connect (optional IR pod) HP Jet-Link connector (optional accessories connect) Figure 4.
Optional accessories HP Fast InfraRed Connect pod 3000-sheet stacker 3000-sheet stapler/stacker Duplexer 2000-sheet feeder (tray 4) Figure 5.
Regulatory information Regulatory requirements For regulatory information and requirements, please see the Start guide. FCC regulations For FCC regulations, please see the Start guide. Declaration of conformity For declaration of conformity information, please see the Start guide. Environmental product stewardship program For environmental product stewardship program information, please see the Use guide.
Service approach Repair of the printer normally begins with a three-step process: l Isolate the problem to the major system (the host computer, the network and/or server, or the printer system). l Determine whether the problem is located in one of the paper-handling devices or in the printer engine. l Troubleshoot the problem using the procedures in chapter 7. Once a faulty part is located, repair is usually accomplished by assembly level replacement of field replaceable units (FRUs).
Service and support World Wide Web Printer drivers, updated HP printer software, and product and support information can be obtained from the following URLs: l U.S., http://www.hp.com/support/lj9000 l Europe, http://www.hp.com/support/lj9000 l China, ftp://www.hp.com.cn/support/lj9000 l Japan, ftp://www.jpn.hp.com/support/lj9000 l Korea, http://www.hp.co.kr/support/lj9000 l Taiwan, http://www.hp.com.tw/support/lj9000, or the local driver website, http://www.dds.com.
Customer support and product repair assistance for other customers HP provides a free telephone support service during the warranty period. By calling the appropriate telephone number for your country or region, you will be connected to a responsive team waiting to help you. If you require support after your warranty has expired, you can receive support for a fee through the same telephone number. The fee is charged on a per-incident basis.
2 Product requirements Chapter contents Site requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Operating environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Space requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Media specifications . . . . . . . . . . . . . . . . . . . .
Site requirements Operating environment The electrical and environmental specifications must be maintained to ensure the proper operation of this printer. See "Product specifications" in chapter 1. Consider the following points before installing the printer: l Install in a well-ventilated, dust-free area. l Install on a level, flat surface that can support the printer size and weight. Make sure all four printer feet are level. Do not install on carpet or on other soft surfaces.
Space requirements 638 mm (25.1 in) 352.8 mm (13.9 in) 638 mm (25.1 in) 633 mm (24.9 in) 352.8 mm (13.9 in) 368 mm (17.8 in) 600 mm (23.6 in) Figure 6.
2296.2 mm (90.4 in) 1001 mm (39.4 in) 2296.2 mm (90.4 in) Figure 7. 1036.4 mm (40.
Media specifications Note Before purchasing large quantities of paper, make sure the paper meets the requirements specified in this service manual and in the HP LaserJet Printer Family Print Media Guide. See "Media input/ output options" on page 40. Always test print media before buying large quantities. Note HP neither warrants nor recommends the use of a particular brand of paper or print media. Media properties are subject to manufacturing changes, and Hewlett-Packard has no control over such changes.
Figure 8. Sample seams Note Print envelopes from optional tray 1 only. Send envelopes straight through the printer, entering at optional tray 1 and exiting from the face-up bin. Note For the best print quality, position margins no closer than 15 mm (0.6 in) from the edges of the envelope. Avoid printing over the area where the envelope seams meet.
Figure 9. Adhesive labels Transparency specifications To avoid damaging the printer, use only transparencies recommended for use in laser printers. l Construction—Prior to printing, transparencies should lie flat with less than 10 mm (0.39 in) curl. l Condition—Transparencies should not be wrinkled, nicked, or otherwise damaged. l Temperature—Transparencies should be stable at 190 degrees C (374 degrees F), which is the printer fusing temperature.
Embossed media Embossed media is not recommended for use in HP LaserJet printers. Media is embossed by stamping an image into the media by compressing the media fibers together at approximately 200 degrees C (392 degrees F), and sometimes by applying a thin metal foil to the surface. The printer fusing process can loosen the foil; loose foil can interfere with the mechanical and electronic operation of the printer. Embossed paper, with or without foil, can also cause multifeed jams.
and smudging. Humid weather or water coolers can cause the humidity in a room to increase. As a package of paper is opened and used, it absorbs any excess moisture, causing light print and dropouts. Also, as paper loses and gains moisture, it can distort. This can cause jams. Therefore, paper storage and handling are as important as the paper-making process itself. Paper storage environmental conditions directly affect the feed operation.
Metric sizes For metric-size paper (A4), use the following method to determine basis weight. Take 16 sheets of A4 paper and weigh them. One square meter of paper contains approximately 16 A4 size sheets. Compare this weight to the appropriate weight in the "Paper weight equivalence table" on page 36. Paper weight equivalence table Use this table to determine approximate equivalent points in weight specifications other than U.S. bond weight. For example, to determine the equivalent of 20 lb U.S.
Caliper field test The specified caliper differs according to the type of media used. See "Media specifications" on page 31. Caliper can be measured in the field using a micrometer. CAUTION Never use the coarse adjustment end of the micrometer when measuring for caliper. The coarse adjustment will compress the paper fibers, resulting in an inaccurate reading. For example, if the fibers are compressed, 6 mil paper could measure as little as 3 mils. Always use the fine adjustment to measure caliper.
Curl field test To check for paper curl, place a single sheet of paper on a flat surface and measure curl at the greatest deflection, holding a ruler perpendicular to the flat surface. Figure 11. Measuring curl Cut edge condition field test The condition of the cut edge can be easily observed with an eye loop. Under magnification, a good edge will appear even. A poorly cut edge will show fraying, jagged edges, compressed fibers, and other damage.
Tools and suppliers Hewlett-Packard neither warrants nor recommends a particular manufacturer, supplier, or tool. Products are subject to change, and HP has no control over such changes. However, the following table of tools and their suppliers is provided for convenience. Table 9. Tools and suppliers C8519-90912 Tool Part Number Supplier Address Paper moisture meter 2RRDMP Mitchell Instrument 1570DDD Cheroke St.
Media input/output options Trays, bins, and paper handling The base model printer comes with two built-in 500-sheet trays (tray 2 and tray 3). Optional tray 1 and tray 4 can be added to the printer. Special media (envelopes, labels) should only be loaded into optional tray 1. The printer comes with face-up and face-down bins, and an optional 3000-sheet stapler/stacker or 3000-sheet stacker can be installed.
Media sizes Note Optional tray 1 adjusts for sizes from 98 by 191 mm (3.8 by 7.5 in) to 312 by 470 mm (12.3 by 18.5 in). Optional tray 1 should be used when printing the following: envelopes, labels, and custom-sized media or cardstock. Table 10. Optional tray 1 media sizes Optional tray 1 Dimensions Weight Capacity Plain paper minimum size (custom) 98 by 191 mm (3.8 by 7.
Table 12. Optional tray 4 paper sizes Tray 4 Dimensions Letter 216 by 279 mm (8.5 by 11 in) A4 210 by 297 mm (8.3 by 11.7 in) B4 257 by 364 mm (10 by 14.3 in) Ledger 279 by 431.8 mm (11 by 17 in) A3 297 by 420 mm (11.7 by 16.5 in) Executive 191 by 267 mm (7.3 by 10.5 in) Legal 216 by 356 mm (8.5 by 14 in) B5 176 by 250 mm (6.9 by 9.9 in) A5 148 by 210 mm (5.8 by 8.2 in) Plain paper minimum size (custom) 182 by 210 mm (7.2 by 8.3 in) Plain paper maximum size (custom) 297 by 431.
Table 13. Duplexer paper sizes C8519-90912 Duplexer Dimensions Weight Letter 216 by 279 mm (8.5 by 11 in) 64 to 199 g/m2 (17 to 53 lb bond) A4 210 by 297 mm (8.3 by 11.7 in) Legal 216 by 356 mm (8.5 by 14 in) A3 297 by 420 mm (11.7 by 16.5 in) Ledger 279 by 431.8 mm (11 by 17 in) B4 257 by 364 mm (10 by 14.3 in) Executive 191 by 267 mm (7.3 by 10.5 in) B5 176 by 250 mm (6.9 by 9.9 in) A5 148 by 210 mm (5.8 by 8.3 in) Plain paper minimum size (custom) 148 by 210 mm (5.8 by 8.
Table 14. 3000-sheet stapler/stacker and 3000-sheet stacker media sizes Face-up bin Dimensions Weight Letter 216 by 279 mm (8.5 by 11 in) 64 to 199 g/m2 (17 to 53 lb bond) A4 210 by 297 mm (8.3 by 11.7 in) Legal 216 by 356 mm (8.5 by 14 in) A3 297 by 420 mm (11.7 by 16.5 in) Ledger 279 by 431.8 mm (11 by 17 in) B4 257 by 364 mm (10 by 14.3 in) Executive 191 by 267 mm (7.3 by 10.5 in) B5 176 by 250 mm (6.9 by 9.9 in) A5 148 by 210 mm (5.8 by 8.
3 Product configuration Chapter contents Using the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Control panel keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Numeric keypad commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Settings and defaults . . . . . . . . . . . . . . . . . . . . . .
Using the control panel The control panel includes three LED indicator lights, four navigation keys, a help key, a message clear key, a pause/resume key, a cancel job key, a numeric key pad, and a graphical display (capable of displaying up to four lines of text). The control panel graphical display provides both status and error messages by using distinct text and codes. See "Troubleshooting with control panel messages" in chapter 7.
Numeric keypad commands The NUMERIC KEYPAD is used to enter a numeric value. The NUMERIC KEYPAD will also provide a shortcut key to items in the menus if the device is in an idle state. Pressing the numbers that correspond with the position of the menu item will enter that menu. For example, to get a configuration page, the user would press 22. The first 2 is the Information Menu, which is the second menu. The second 2 is the “PRINT CONFIGURATION PAGE” command and is the second item in the list.
Settings and defaults The printer makes most printing decisions based on temporary settings or on factory (permanent) defaults. Note Settings you send from software applications override printer defaults. Temporary settings are the values set through your software application for the current print job. Temporary settings remain in effect until the current print job is finished. Control panel defaults are the values entered by selecting a control panel item and pressing .
Figure 14.
Figure 15.
Printer driver information When you change a setting from the printer control panel, the new setting becomes the printer default value. You can override any control panel setting through most software applications, as well as from the printer driver. Factory default settings The following tables detail the default values for each menu item grouped by menu. Performing a Cold Reset or NVRAM INIT will restore the printer to these factory settings. See "Service mode" in chapter 7. Table 17.
Table 17. Factory default settings (continued) User-type 5 Auto Printing menu Copies 1 Default paper size Letter Default custom paper size X = 265 mm Y = 216 mm Paper destination Standard output Duplex Off Binding Long edge Override A4 with letter No Manual feed Off Edge-to-edge override Off Courier font Regular Wide A4 No Print PS errors Off Printing menu—PCL Form length 60 Orientation Portrait Font source Internal Font number 0 Font pitch 10.00 Font point size 12.
Table 17.
Control panel menus Press or to cycle through the control panel menus. Each menu is described in a separate table in this section. Figure 16, "Menu map page 1 (common functions)" on page 55 provides a map of all the menus and their associated items. Menu items are displayed only if their associated option is installed, or their function is activated. All menus and their associated items are accessible when the printer is online.
Menu map Figure 16.
Figure 17.
Figure 18. Menu map page 3 (administrative functions) Figure 19.
Figure 20.
Figure 21.
Retrieve job menu This menu contains stored job information. Table 18. Retrieve job menu Item Explanation NO STORED JOBS This menu gives a listing of currently stored print jobs. Information menu This menu contains printer information pages that give details about the printer and its configuration. Table 19. Information menu Item Explanation PRINT MENU MAP The menu map shows the layout and current settings of the control panel menu item. See "Menu map" on page 55.
Table 20. Paper handling menu (continued) Item Values Explanation TRAY 3 SIZE= LETTER LETTER Set the value to correspond with the paper size currently loaded in tray 3. TRAY 3 TYPE= PLAIN PLAIN Set the value to correspond with the paper type currently loaded in tray 3. TRAY 4 SIZE= LETTER LETTER Set the value to correspond with the paper size currently loaded in tray 4. TRAY 4 TYPE= PLAIN PLAIN Set the value to correspond with the paper type currently loaded in tray 4.
Table 21. Configure device menu (continued) Item Values PRINT QUALITY Set the paper registration and print quality from this menu. SET REGISTRATION Create a printer cleaning page and set EconoMode in the menu.
Network and mass storage Hewlett-Packard frequently introduces new software tools for use with your printer and accessories. Many of these tools are available from the Internet free of charge. See "World Wide Web" in chapter 1 for information about how to visit the HP website for more information. To install EIO cards and hard disks (mass storage) l Turn off the printer and remove the power cord before installing the EIO cards or mass storage device.
Remote firmware upgrade (RFU) The process for upgrading printer firmware remotely involves three steps: 1 Determine the current level of firmware installed on the printer. 2 Go to the http://www.hp.com/go/lj9000_firmware Web site and download the latest firmware. 3 Download the new firmware to the printer.
5 When prompted for the type of update to perform, click Update Printers, and then click Continue. 6 Under Upload new firmware image:, click Browse to locate the RFU file you downloaded from the http://www.hp.com/go/lj9000_firmware Web site. 7 Click Upload to move the RFU file from your hard drive to the HP Web JetAdmin server. 8 Refresh the browser. 9 Select the RFU file from the Select new firmware version: drop-down menu. 10 Click Update Firmware.
66 Chapter 3 Product configuration C8519-90912
4 Product maintenance Chapter contents Preventative maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Preventive maintenance kit contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Cleaning the printer and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 General cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preventative maintenance To ensure optimum print quality, the printer will prompt you to perform printer maintenance every 350,000 pages. When the PERFORM PRINTER MAINTENANCE message appears on the control panel, the customer needs to purchase and install a preventive maintenance kit. After a new maintenance kit is installed, the control panel displays NEW MAINTENANCE KIT and NO is highlighted. Use or to scroll to YES and press .
Cleaning the printer and accessories To maintain superior print quality and performance, use the following procedures to clean the printer and the paper-handling accessories thoroughly every time you change the print cartridge or whenever print-quality problems occur. General cleaning WARNING! In order to avoid shock hazard, turn the printer and the paper-handling accessories off and unplug all power cords before you begin these steps. CAUTION Do not use ammonia-based cleaners on or around the products.
Internal cleaning During the printing process, paper, toner, and dust particles can accumulate inside the printer and the paper-handling accessories. Over time, this buildup can cause print-quality problems such as toner specks or smearing. Internal cleaning can assist in correction and prevention of these types of problems. CAUTION Before you begin these steps, turn the printer off and unplug all power cords to avoid shock hazard. 1 Turn the printer off and unplug all power cords. Figure 23.
3 Figure 25. Wipe residue 4 Figure 26. C8519-90912 With a dry, lint-free cloth, wipe any residue from the paper-path area, registration roller, and the print cartridge cavity. Replace the print cartridge.
5 Figure 27. Lock print cartridge 6 Figure 28. Press the button on the green lever, then turn the lever clockwise to the locked position. Close the front cover. Plug in the power cable, and turn the printer on.
Fuser cleaning To complete internal cleaning, create and process a cleaning page. Create a cleaning page Generating a cleaning page will clean the excess toner off the pressure roller in the fuser. The page has instructions printed on it that will walk the user through the process of inserting the page in a tray. If an optional tray 1 is installed, the instructions will indicate that the page should be placed face down in tray 1.
Process a cleaning page Follow the instructions on the cleaning page to complete the cleaning process. PROCESS CLEANING PAGE will only be visible to the user after they have generated a cleaning page using the CREATE CLEANING PAGE menu. Once the user has generated the page and placed it face down in tray 1, or face up in tray 2, the user will be instructed to select this menu item to complete the cleaning process.
Print cartridge information Print cartridges contain components that are sensitive to light, temperature, and humidity. Make sure the user follows the recommendations in this section to ensure the highest quality and longest life of the print cartridge. Storage The print cartridge (C8543X) should not be removed from its package until installation. The shelf life of a cartridge in an unopened package is approximately 2.5 years. The shelf life of a cartridge in an opened package is approximately 6 months.
Refilled print cartridges HP policy about non-HP print cartridges Hewlett-Packard Company cannot recommend using new, refilled, or remanufactured, non-HP print cartridges. Because they are not HP products, HP cannot influence their design or control their quality.
5 Theory of operation Chapter contents Basic operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Sequence of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Power-on sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Timing chart . . . . . . . . . . . . . . . . . . . . . . . .
Optional 3000-sheet stapler/stacker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Controller PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power-on sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Basic operation This chapter provides information about the following systems: l engine control l formatter l laser/scanner l image formation l pickup and feed Relationships among the five systems are represented in figure 30 below: Figure 30.
Sequence of operation Operational sequences are controlled by the engine control system. Table 23 describes the sequences. Figure 31. Sequence of operation block diagram Table 23. Normal sequence of operation State Period Operation WAIT From the time the power is switched on until the surface temperature of the fuser and pressure rollers reach their WAIT target value (four minutes or less.
Table 23. Normal sequence of operation (continued) State Period Operation INTR (initial rotation) From the input of a print l reservation command from the l formatter until the laser/scanner l enters a ready state. l l l l l l l l PRINT From the input of a print command until the primary DC bias is turned off. l l l l l l l l l LSTR (last rotation) l From the time the primary charging roller is turned off until l each of the motors stop.
Table 24. Failure sequence of operation State Period Operation JAM From the time the power is l switched on until the end of the l LSTR period. l l DOOR OPEN l From the time the power is switched on until the end of the l LSTR period. l FAILURE From the time the power is l switched on until the end of the l LSTR period. SLEEP From the time the power is l switched on until the end of the LSTR period.
Timing chart Figure 32.
Engine control system The engine control system coordinates the laser/scanner, image formation, and pickup and feed systems according to the instructions it receives from the formatter. The engine control system consists of the DC controller PCB, the high-voltage power supply circuit, and the low-voltage power supply unit. Figure 33 shows a block diagram of the engine control system. Figure 33.
DC controller PCB The DC controller circuit controls operational sequences of the printer. Figure 34.
DC controller operations l The CPU (IC201) on the DC controller PCB controls the following printer operations: • sequence of the printer • communications with the formatter • high-voltage power supply circuit • rotation of the pickup motor, lifter motor, pickup roller motor, and fan motor 6 • communication with the duplexer and the optional tray 1, if installed • fuser heater control circuit and fuser heater safety circuit l ASIC (IC202) on the DC controller PCB controls the following printer operations,
High-voltage power supply circuit The high-voltage power supply circuit applies a high-voltage bias to the primary charging roller, the developing cylinder, the pre-transfer upper guide, the transfer charging roller, the separation static charge eliminator, and the pressure roller through the ASIC (IC 202), according to instructions it receives from the CPU (IC201) on the DC controller PCB. The high-voltage power supply circuit also detects the toner level. Figure 35.
Each of the bias generation circuits has a specific purpose: l Primary charging bias generation. Applies bias to the primary charging roller to spread a uniform, negative charge on the photosensitive drum. l Developing bias generation. Controls the amount of toner transferred onto latent images formed on the photosensitive drum. l Pre-transfer upper guide bias generation. Prevents toner on the photosensitive drum from adhering to the pre-transfer upper guide. l Transfer bias generation.
Low-voltage power supply unit The low-voltage power supply unit consists of the fuser control circuit and the low-voltage power supply circuit. Figure 36. Power supply block diagram Fuser control circuit Three heaters heat the fuser roller and pressure roller. The main heater (H1) heats the center of the fuser roller; the sub-heater (H2) heats both ends of the fuser roller; and the lower heater (H3) heats the pressure roller. Two thermistors monitor the surface temperature of the rollers.
Formatter system The formatter and DC controller exchange signals that allow the DC controller to begin the initial rotation period (INTR), turn on the registration roller drive clutch, and feed media into the printer. When media is positioned for printing, the formatter sends information through the DC controller to the laser/scanner, which then turns the laser diodes on and off.
Formatter subsystem Resolution Enhancement technology The formatter contains circuitry for Resolution Enhancement technology (REt), which modifies the standard video dot data on its way to the engine controller assembly to produce smoothed black-towhite boundaries. The default is on. Print density adjustment Print density is the line width (boldness) of the print image.
Laser/scanner system The laser/scanner unit of this printer contains two laser diodes in its laser unit. The printer employs the “twin beam method” which scans two lines simultaneously. Based on signals it receives from the DC controller and the formatter, the laser/scanner PCB causes the two laser diodes to emit laser beams. The beams strike a six-sided mirror that rotates at a constant speed.
Image formation system The image formation system consists of the cartridge, transfer charging roller, and fuser. When a print command is sent from the formatter, the engine controller drives the main motor to rotate the photosensitive drum, primary charging roller, developing cylinder, transfer charging roller, and pressure roller. The primary charging roller applies a uniform negative charge to the photosensitive drum surface.
5 Transfer—During the transfer process, the toner image on the drum surface is transferred to the paper. The transfer charging roller applies a positive charge to the back of the paper and causes the negatively charged toner on the drum surface to be attracted to the paper. After separation, the drum is cleaned and conditioned for the next image. 6 Separation—During the separating process, the paper separates from the drum.
Cartridge memory The print cartridge comes with built-in RAM. The printer detects the cartridge condition by reading and writing to this memory. The read/write of the memory is performed by the memory controller after receiving instructions from the DC controller through the antenna unit. The DC controller instructs the memory controller PCB to perform read/write at the following timing: l Read • When the power is turned on. • When the door cover is closed.
Pickup and feed system The pickup and feed system is divided into two blocks: pickup/feed and fuser/delivery. This printer contains two standard pickup sources (tray 2 and tray 3) and two delivery sources (face-up and facedown bins.) The pickup unit picks up print paper one by one from tray 2 or tray 3. The feed unit transports the picked-up paper to the fuser unit. When the printer is turned on, the paper is lifted by the lifter to where the paper pickup is enabled.
Jam detection The printer detects jams according to the following conditions: l Pickup 1 delay jam. Media does not reach the tray 2 feed sensor A (PS1402) or the tray 3 feed sensor A (PS1404) within 5.3 seconds after pickup begins. l Pickup 2 delay jam. • Media does not reach the tray 2 feed sensor B (PS1401) or the tray 3 feed sensor B (PS1403) within 6.1 seconds after the tray 2 feed sensor A (PS1402) or the tray 3 feed sensor A (PS1404) detects the leading edge of the media.
Figure 40.
Table 25.
Figure 41.
Table 26.
Optional tray 1 The optional tray 1 is a multipurpose tray that picks up and feeds media into the printer. Tray 1 driver PCB A driver PCB in the tray holds a four-bit microcomputer (CPU-IC2501) that controls its operational sequence and serial communications with the DC controller PCB. The CPU drives a motor, solenoid, and clutch according to commands sent from the DC controller PCB. Figure 42.
Pickup and feed The tray 1 pickup unit picks up paper by bringing down the pickup roller onto the surface of the paper loaded in the tray and separating the roller from the paper surface. The pickup roller is lifted up and down by the pickup cam. When the tray 1 pickup unit turns on the pickup solenoid, the stopper leaves from the cam, allowing the cam to rotate. This shifts the pickup roller up and down.
Optional tray 4 The optional tray 4 is a 2000-sheet feeder that picks up and feeds media into the printer. Tray 4 driver PCB A driver PCB in the tray holds a 16-bit microcomputer (IC1) that controls its operational sequence and serial communications with the formatter. The driver PCB drives the motors and clutch according to commands sent from the formatter. Figure 43. Optional tray 4 block diagram Power supply Tray 4 employs a remote switch method for the power supply unit.
Pickup and feed The formatter sends a signal to the driver PCB to start driving the pickup and feed motors. Rotated by the rollers, the pickup roller picks up a sheet of paper, the separation roller removes any excessive sheets, and the feed roller transports the paper to the registration roller unit. After the paper enters the registration roller unit, the registration roller corrects the paper skew and the second feed roller feeds the paper to the printer.
Optional 3000-sheet stapler/stacker The 3000-sheet stapler/stacker is a multi-speed output device. It staples up to 50 sheets of plain paper at a time and can hold a total of 3125 sheets—3000 sheets in the stapler bin and 125 sheets, not stapled, in the face-up bin. Controller PCB Communication and control of the 3000-sheet stapler/stacker is accomplished through the paperhandling controller embedded on the formatter in the printer.
Main modules The 3000-sheet stapler/stacker is made up of the following main modules: l Face-up bin—This bin will collect the documents face up, with the printed information toward the user. Finished documents are not routed to this bin, yet the bin does give support to sheets being flipped to the face-down bin. This face-up bin has a capacity of 125 sheets of media (75 g/m2, 20 lb). l Face-down (stacker) bin—Collated and stapled jobs will be routed to the face-down (stacker) bin.
Paper path and jam detection l Paper input—The device receives paper from the HP LaserJet 9000 Series printer at 230 mm per second. l Flipper—Paper arrival is sensed by FLEntry1, which activates the flipper motors. For face-up printing, the flipper delivers the paper sensed by FLEntry to the face-up bin. Otherwise, the flipper changes page orientation from face-up to face-down and delivers paper sensed by FLExit to the paper path module.
Stapler bin full condition The stapler bin will signal a full condition when approximately: Note l 3000 sheets of letter/A4 have been collected in the stapler bin. l 1500 sheets of ledger/A3 have been collected in the stapler bin. A full bin condition is declared when the stapler bin contains 15 kg (33 lb) of paper. Full bin—Optical sensors detect presence of paper and full mini stack condition.
Optional 3000-sheet stacker The 3000-sheet stacker is a multi-speed output device. The stacker stacks up to 3000 sheets of plain paper in the stacker bin, has job offset capabilities for easy handling, and has job separation (first page offset) for shared environments. The stacker includes a face-up bin that holds another 125 sheets. Controller PCB Communication and control of the stacker is accomplished through the paper-handling controller embedded on the formatter in the printer.
Main modules The stacker is made up of the following main modules: l Face-up bin—This bin will collect the documents face-up, with the printed information toward the user. Finished documents are not routed to this bin, yet the bin does give support to sheets being flipped to the face-down bin. This face-up bin has a capacity of 125 sheets of media (75 g/m2, 20 lb). l Face-down (stacker) bin—The face-down bin can collect print jobs with or without offset.
Paper path and jam detection l Paper input—The device receives paper from the HP LaserJet 9000 Series printer at 230 mm per second. l Flipper—Paper arrival is sensed by FLEntry1, which activates the flipper motors. For face-up printing, the flipper delivers the paper sensed by FLEntry to the face-up bin. Otherwise, the flipper changes page orientation from face-up to face-down and delivers paper sensed by FLExit to the paper path module.
Stacker bin full condition The stacker bin will signal a full condition when approximately: Note l 3000 sheets of letter/A4 have been collected in the stacker bin. l 1500 sheets of ledger/A3 have been collected in the stacker bin. A full bin condition is declared when the stacker bin contains 15 kg (33 lb) of paper. Full bin—Optical sensors detect presence of paper and full mini stack condition.
114 Chapter 5 Theory of operation C8519-90912
6 Removal and replacement Chapter contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 Removal and replacement strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 Repair notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 Electrostatic discharge (ESD) . . . . . . . . . . . . . .
DC controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Toner-sensor contact assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cartridge memory PCA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drum motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction Removal and replacement strategy This chapter documents removal and replacement of field replaceable units (FRUs) only. Replace parts in the reverse order of their removal. Directions for difficult or critical replacement procedures are included. Repair notices WARNING! The printer can have sharp sheet metal edges. Exercise caution when working on the printer. CAUTION Always remove the print cartridge before removing or replacing assemblies and parts. (See page 135.
Orientation of the printer (with tray 4) The printer is shown with the optional 2000-sheet feeder (tray 4) and the optional tray 1. Front and right side orientation Front Right Figure 50. View of front and right side Back and left side orientation Back Left Figure 51.
Covers The following covers can be removed from the printer: l right top cover l left door and diverter l left top cover l left back cover l front cover l back cover l right door l rail cover l right lower cover Right top cover 1 Remove the control panel (page 128). 2 If tray 1 is installed, remove it (page 140). 3 Open the right door. 4 Remove the small plastic cover from the upper right side of the right door (callout 1) by releasing the tab on the inside of the door.
Left top cover 1 Remove the control panel (page 128). 2 Remove the right top cover (page 119). 3 Remove two silver screws (callout 1). 4 Lift the left top cover up, and then pull it toward the right side of the printer to release two locating tabs (found on the underside of the cover, on the left edge). 1 2 2 Figure 53. Removing the left top cover To reinstall l Be sure to feed the control panel cable back up through the hole (callout 2) in the left top cover.
Front cover 1 Remove two small plastic retaining cups (callout 1). 2 Pinch and release two tabs (below the retaining cups, callout 1) on the end of each black retaining strap to release the strap ends. 3 Remove the front cover from the hinges (callout 2). 2 1 2 Figure 54.
Right door 1 If tray 1 is installed, remove it (page 140). 2 Open the right door. 3 Pinch and then push the two tabs (callout 1) on the end of the black strap to release the strap ends. If you have difficulty, use needle-nose pliers. 4 Disconnect four locator tabs (callout 2) on the cable cover, and then remove the cable cover. 2 1 2 Figure 55. Removing the right door (1 of 2) 5 Note Unplug two multiple-wire cable connectors (callout 3). Do not remove the single grounding cable (callout 4).
Right lower cover 1 Remove the right door (page 122) and the back cover (page 126). 2 Remove the right rail cover (page 127). 3 Remove three screws (callout 1). 4 Rotate the lower edge up to release two tabs (callout 2). 5 Remove the right lower cover. 2 2 1 Figure 57.
Left door and diverter Note If the 3000-sheet stacker or 3000-sheet stapler/stacker is installed, move it away from the printer to gain access to the left door and diverter. See "Output accessory removal" on page 171. 1 CAUTION Open the left door. Make sure you do not drop the pins (callout 1) on the end of each spring-loaded rod. 2 Grasp the two spring-loaded rods (callout 2), push them in toward the printer, and then pull them down and away from the printer.
Left back cover 1 Remove the formatter (page 148). 2 Remove three silver screws (not shown) from the left back cover. 3 Rotate the left back cover toward the back of the printer to release the three tabs (callout 1) on the left side of the cover and the two tabs (callout 2) on the right side of the cover. 2 1 2 Figure 59.
Back cover 1 Remove two silver screws (callout 1) from the right back cover. 2 Remove seven gold screws (callout 2) from the back cover. 3 Remove the back cover and right back cover as one part. 2 1 2 Figure 60.
Rail covers 1 Remove trays 2 and 3 (page 136). 2 Remove two silver screws (callout 1) from the right rail cover. 3 Lift the upper tab (callout 2) to release it, and push the lower tab (callout 3) toward the right to release it. 4 Remove the right rail cover. 5 Repeat these steps to remove the left rail cover (not shown). 2 1 2 2 3 Figure 61.
Top assemblies Gain access to the following assemblies from the top of the printer: l control panel l delivery assembly fans and face-down bin fan l laser/scanner assembly l delivery assembly l delivery motor l delivery fan assembly l cartridge release lever Control panel 1 Open the front cover. 2 Release the two tabs (callout 1) on the underside of the control panel by pulling them toward the front of the printer. 3 Lift the control panel straight up.
Laser/scanner assembly 1 Remove the control panel (page 128). 2 Remove the right top cover (page 119). 3 Unplug three cable connectors (callout 1). 4 Remove four long gold screws (callout 2). 5 Lift the laser/scanner out of the printer. 2 1 2 Figure 63.
Delivery assembly 1 Remove the control panel (page 128). 2 Remove the right top cover (page 119), the left top cover (page 120), and the left back cover (page 125). 3 Open the left door. 4 Face the top of the printer from the left side. 5 Unplug one cable connector (callout 1). 6 Remove four gold screws (callout 2) and two silver screws (callout 3). 7 Lift the delivery assembly out of the printer. 2 1 2 3 2 Figure 64.
Delivery fan assembly 1 Remove the delivery assembly (page 130). 2 Gently remove the two sensor flags (callout 1) from the holders. 3 Unplug three cable connectors (callout 2). 4 Remove one silver screw (callout 3). 5 Grasp the middle fan, and lift the left side of the metal casing to release the tab (callout 4). 6 Slide the fan assembly to the right, and gently separate the two parts. 2 1 2 2 3 2 4 Figure 65.
Delivery assembly fans and face-down bin fan (fans #3, #6, and #4) 1 Remove the fan assembly (page 131). 2 Carefully unwind the fan cables from the cable guides (callout 1). 2 1 Figure 66. Removing the delivery assembly fans and face-down bin fan (1 of 2) 3 Remove six gold screws (callout 2). 4 Remove the three fans: • fan 3: delivery assembly back fan (callout 3) • fan 6: face-down bin fan (callout 4) • fan 4: delivery assembly front fan (callout 5) 2 2 3 Figure 67.
Delivery motor WARNING! 1 Remove the control panel (page 128). 2 Remove the right top cover (page 119) and the left top cover (page 120). 3 Remove the delivery assembly (page 130). The PCA board is fragile. To prevent damage, hold the PCA board when you remove or plug in the connector. 4 Hold the PCA board, and unplug one cable connector (callout 1) 5 Remove four silver screws (callout 2). 2 1 2 Figure 68.
Cartridge release lever Figure 69. 1 Remove the control panel (page 128). 2 Remove the right top cover (page 119) and the left top cover (page 120). 3 Open the front cover. 4 Rotate the cartridge release lever downward. 5 Remove the print cartridge (page 135). Removing the cartridge release lever (1 of 2) 6 Face the top of the printer. 7 Remove two long screws (callout 2). 8 Face the front of the printer. 9 Slide the cartridge release handle away from the front of the printer.
Front assemblies Gain access to the following assemblies from the front of the printer: l print cartridge l transfer roller assembly l tray 2 and tray 3 l rollers (pickup, feed, and separation) l fuser jam removal knob l registration jam removal knob Print cartridge WARNING! To prevent damage, do not expose the print cartridge to light. Put it in the original print cartridge bag, or, if the bag is not available, cover it with a piece of paper. 1 Open the front cover of the printer.
Transfer roller assembly WARNING! Do not touch the black transfer roller, because skin oils can damage the roller. 1 Open the front cover. 2 Unlock the print cartridge by rotating the large green lever (callout 1) downward. 3 Pinch the blue tab (callout 2), and slowly pull the transfer roller assembly out of the printer. 4 Lift the assembly upward to release the catch on the underside, and remove the assembly from the printer. 2 1 2 Figure 72.
Rollers (pickup, feed, or separation) CAUTION Do not remove the black spacer from behind the separation roller. If the black spacer comes off, return it to the shaft metal edge first. 1 Remove tray 2 or tray 3 (page 136). 2 Locate the appropriate roller on the upper right side of the tray cavity. The pickup roller (callout 1) is a type 1 roller. The feed roller (callout 2) and the separation roller (callout 3) are type 2 rollers. 3 Pinch the tab on the end of each roller to release it.
Fuser jam removal knob CAUTION Make sure you do not drop any of the internal parts from the fuser jam removal knob. Pay careful attention to the order of the parts in case you do drop them. This will make reassembly easier. 1 Open the front cover. 2 Release the tab (callout 1) with a small flatblade screwdriver. 3 Slowly remove the knob and internal parts (spring, pin, and bushing). 2 1 Figure 75.
Registration jam removal knob 1 Open the front cover. 2 Hold the registration jam removal knob firmly, and remove the silver screw inside the knob (callout 1). 3 Pull the knob off the printer. 2 1 Figure 76.
Right assemblies Gain access to the following assemblies from the right side of the printer: l multipurpose tray (tray 1) l paper input unit (PIU) l registration assembly l transfer guide assembly Tray 1 1 Unlock two locking pins (one shown, callout 1) at the bottom of tray 1. 2 Gently pull the bottom of the tray away from the printer. 3 Open the right door, and lift tray 1 off the door. 2 1 Figure 77.
Paper input unit (PIU) 1 Remove the right door (page 122), the back cover (page 126), and trays 2 and 3 (page 136). 2 Remove the right rail cover (page 127). 3 Remove four gold screws (callout 1), two from each rail. 4 Pull the rails out the front of the printer. 2 1 Figure 78. Removing the PIU (1 of 5) 5 Face the right side of the printer. 6 If the 2000-sheet feeder (tray 4) is installed, remove the paper connecting unit by sliding two levers (callout 2) toward the center of the unit.
7 Remove three screws (callout 3) from the right lower cover. 8 Rotate the lower edge up to release two tabs (callout 4). 9 Remove the right lower cover. 2 4 2 3 Figure 80. Removing the PIU (3 of 5) 10 Face the back of the printer. 11 Remove the J-220 and J-221 cable connectors (callout 5) from the DC controller, and carefully unwind the cables from the cable guides (callout 6). 2 5 2 6 Figure 81.
12 Face the right side of the printer. 13 Push the green registration handle (callout 7) down slightly, and then pull it out to gain access to the PIU. 14 Remove four silver screws (callout 8). CAUTION The PIU is heavy. 15 Grasp the PIU handle (callout 9), and lift the PIU out of the printer. 2 7 2 8 2 9 Figure 82. Removing the PIU (5 of 5) To reinstall C8519-90912 l Make sure that the green handle on the registration assembly is up before you reinstall the PIU.
Registration assembly 1 Remove the right door (page 122), the back cover (page 126), and trays 2 and 3 (page 136). 2 Remove the print cartridge (page 135). 3 Remove the registration jam removal knob (page 139). 4 Remove the PIU (page 141). 5 Unplug the J-215 cable connector (callout 1) from the DC controller. 2 1 Figure 83. Removing the registration assembly (1 of 2) 6 Remove two gold screws (callout 2) from the registration assembly.
Transfer guide assembly 1 Remove the right door (page 122), the back cover (page 126), and trays 2 and 3 (page 136). 2 From the back of the printer, remove the high-voltage power supply (page 150) and the drum motor (page 154). 3 From the front of the printer, remove the transfer roller assembly. 4 From the right side of the printer, remove the PIU (page 141) and the registration assembly (page 144). 5 Remove the fuser assembly (page 147).
Left assemblies Note If the 3000-sheet stacker or 3000-sheet stapler/stacker is installed, move it away from the printer before you begin repairs to the left side of the printer. See "Output accessory removal" on page 171. Gain access to the following assemblies from the left side of the printer: l duplexer l fuser assembly Duplexer 1 Lift the left door handle, and then open the left door. 2 Push the green tab (callout 1) downward. This releases the duplexer and moves it forward slightly.
Fuser assembly CAUTION The fuser assembly can be hot. Use caution when removing it. Note If an optional output accessory is installed, remove it. See page 171. If a duplexer is installed, remove it. See page 146. Note 1 Lift the left door handle, and then open the left door. 2 Rotate the two blue locking tabs (callout 1) toward each other and downward to release them. Do not release the T-shaped envelope levers (callout 2). 2 1 2 Figure 89.
Back assemblies Gain access to the following assemblies from the back of the printer: l formatter l cartridge memory PCA l low-voltage power supply (LVPS) l drum motor l feed-drive assembly l high-voltage power supply (HVPS) l power supply fan (fan #1) l DC controller l cartridge fan (fan #5) l toner-sensor contact assembly l controller fan (fan #2) Formatter 1 Turn the printer off. 2 Disconnect all cables from the formatter. 3 Loosen the two thumb screws (callout 1).
Low-voltage power supply (LVPS) 1 Remove the back cover (page 126). 2 Remove the large cable connector (callout 1) from the DC controller. 3 Unroute the cable from the cable guides (callout 2). 2 1 2 Figure 92. Removing the LVPS (1 of 2) 4 Unplug one standard cable connector (callout 3) from the LVPS. 5 Unplug one molex cable connector (callout 4) by pulling and releasing the tab on the side of the connector.
High-voltage power supply (HVPS) 1 WARNING! Remove the back cover (page 126). The flat ribbon cable is fragile. Do not bend or fold it. 2 Remove the flat ribbon cable connector (callout 1) from the DC controller. 3 Unplug the low-voltage power supply cable connector (callout 2) from the DC controller, and unroute the cable from the cable guides (callout 3). 2 1 2 2 3 Figure 94. Removing the HVPS (1 of 2) 4 Remove three silver screws (callout 4).
DC controller CAUTION CAUTION The DC controller is sensitive to electrostatic discharge (ESD). Always perform service work at an ESD-protected workstation, or use an ESD mat. For further precautions, see page 117. 1 Remove the back cover (page 126). 2 Remove the formatter (page 148) and the high-voltage power supply (HVPS) (page 150). Use caution when removing cable connectors J-215, J-219, and J-213. Do not bend or break the component that is adjacent to these cable connectors.
Toner-sensor contact assembly 1 Remove the back cover (page 126). 2 Remove the high-voltage power supply (page 150) and the DC controller (page 151). 3 Remove two gold screws (callout 1). 4 Remove the toner-sensor contact assembly. 2 1 Figure 98.
Cartridge memory PCA 1 Remove the back cover (page 126). 2 Remove the high-voltage power supply (page 150) and the DC controller (page 151). 3 Remove two silver screws (callout 1). 4 Remove the cartridge memory PCA. 2 1 Figure 99.
Drum motor 1 Remove the back cover (page 126). 2 Unplug one cable connector (callout 1). 3 Remove four gold screws (callout 2). 4 Pull the drum motor away from the printer. 2 1 2 Figure 100.
Feed-drive assembly 1 Remove the back cover (page 126). 2 Remove the high-voltage power supply (page 150) and the drum motor (page 154). 3 Open the front cover. 4 Press the white button on the cartridge release lever (callout 1, page 135), and then rotate the lever clockwise until it locks into place. 5 Face the back of the printer. 6 Pinch the two black tabs (callout 2) together with needle-nose pliers to release the activation lever (callout 3). 7 Remove three gold screws (callout 4).
Power supply fan (fan #1) 1 Remove the back cover (page 126). 2 Unplug the fan cable connector (callout 1), and carefully unwind the fan cables from the cable guides (callout 2). 3 Slide the power supply fan (callout 3) out of the printer. 2 1 2 2 3 Figure 102.
Cartridge fan (fan #5) 1 Remove the back cover (page 126). 2 Remove the J-216 cable connector (callout 1) from the DC controller. 2 1 Figure 103. Removing the cartridge fan (1 of 2) 3 Remove tray 1 if it is installed (page 140). 4 Open the right door. 5 Release the strap by pinching and then pushing the two tabs (page 122, callout 1) on the end of the black strap. 6 Remove two silver screws (callout 2) from the cartridge fan.
Controller fan (fan #2) 1 Remove the back cover (page 126). 2 Locate the controller fan below the formatter. 3 Unplug the fan cable connector (callout 1), and carefully unwind the fan cables from the cable guides (callout 2). 4 Release two black tabs (callout 3). 5 Slide the controller fan (callout 4) out of the printer. 2 1 2 2 3 2 4 Figure 105.
2000-sheet feeder (tray 4) The following covers and assemblies can be removed from the 2000-sheet feeder: l left side cover l drive assembly l right side cover l controller board l back covers l l tray assembly paper-size detection switch PCB l tray 4 rollers (pickup, feed, and separation) l power supply l pickup assembly l paper connecting unit l registration assembly l drive motor Orientation See "Orientation of the printer (with tray 4)" on page 118.
Right side cover 1 Remove two screws (callout 1) from the right side cover. 2 Pull the top edge of the cover outward. 3 Lift the right side cover up and out to remove it from the 2000-sheet feeder. 2 1 2 Figure 107. Removing the right side cover To reinstall Make sure the hook (callout 2) on the inside of the cover connects correctly.
Back covers Center back cover 1 Remove four screws (callout 1) from the center back cover. 2 Remove the center back cover. Right back cover Note 1 Remove the center back cover. 2 Slide the right back cover (callout 2) toward the center to release an interior tab. 3 Lift the right back cover straight up to release a second interior tab. Be sure to keep the right back cover vertically aligned with the 2000-sheet feeder. Otherwise, the second interior tab will not release.
Tray 4 CAUTION Tray 4 is heavy and can be damaged if dropped. Use both hands when removing the tray. 1 Open tray 4 (the tray assembly), and remove all paper. 2 Pull the tray assembly out until it stops. 3 Press the release button (callout 1) on the right side of the tray and the release button (not shown) on the left side of the tray. 4 Continue to press the two release buttons, and pull the tray assembly out of the chassis. 2 1 Figure 109.
Rollers (pickup, feed, and separation) Note 1 Remove tray 4 (page 162). 2 Locate the appropriate roller on the upper right side of the tray cavity. The pickup roller (callout 1), feed roller (callout 2), and separation roller (callout 3) are all type 2 rollers. To gain access to the separation roller, slide the blue roller shield toward the back of the 2000-sheet feeder (as shown in figure 110). 3 Pinch the tab on the end of each roller to release it. 4 Slide the roller off the shaft.
Registration assembly CAUTION 1 Remove the right side cover (page 160). 2 Remove four screws (callout 1). Use care when following step 3. Three cables are connected to the registration assembly. 3 Note Gently lift the registration assembly off the 2000-sheet feeder, and unplug three connectors (callout 2) from the rear of the registration assembly.
Drive motor 1 Remove the center back cover (page 161). 2 Unplug the cable connector (callout 1) from the controller board. 3 Carefully unwind the cable from the cable guides (callout 2). 4 Remove two screws (callout 3). 5 Remove the drive motor from the 2000-sheet feeder. 2 1 2 2 3 Figure 113. Removing the drive motor Drive assembly 1 Remove the center back cover (page 161). 2 Unplug the cable connector (callout 1) from the controller board.
Controller board 1 Remove the center back cover (page 161) and the left back cover (page 161). 2 Unplug eleven connectors (callout 1). 2 1 Figure 115. Removing the controller board (1 of 2) 3 Remove two screws (callout 2). 4 Release two holding pins (callout 3). 5 Remove the controller board from the 2000-sheet feeder. 2 2 3 Figure 116.
Paper-size detection switch PCB 1 Remove the center back cover (page 161). 2 Remove one screw (callout 1) to remove the leaf spring (callout 2). 2 1 2 Figure 117. Removing the paper-size switch PCB (1 of 2) 3 Release four tabs (callout 3), and remove the PCB from the casing. 4 Unplug the cable connector (callout 4). 2 4 2 3 Figure 118. Removing the paper-size switch PCB (2 of 2) To reinstall Open the paper tray (tray 4) slightly, so that the it does not put pressure on the casing.
Power supply 1 Remove the center back cover (page 161) and the left back cover (page 161). 2 Unplug one connector (callout 1). 3 Remove two screws (callout 2). 4 Slide the power supply to the left to remove it. 2 1 3 2 Figure 119.
Pickup assembly 1 Remove the tray assembly (page 162). 2 Remove the right side cover (page 160), the center back cover (page 161), and the right back cover (page 161). 3 Remove the registration assembly (page 164). 4 From the back of the 2000-sheet feeder, unplug two connectors (callout 1). 2 1 Figure 120. Removing the pickup assembly (1 of 2) 5 From the front of the 2000-sheet feeder, remove one screw (callout 2).
Paper connecting unit 1 Release the two levers (callout 1) by pulling them toward the center of the paper connecting unit. 2 Lift the paper connecting unit straight up and remove it. 1 2 Figure 122.
3000-sheet stapler/stacker and 3000-sheet stacker Output accessory removal 1 Turn the printer off and unplug the power cable. 2 Unplug the paper output accessory power cable from tray 4. 3 Unplug the paper output accessory interface cable from the printer formatter. 4 Hold the paper output accessory with one hand, and support the bottom side of the accessory with the other hand. 5 Pull the accessory away from the printer.
Orientation of the stapler/stacker Front and left side orientation Front Left Figure 123. View of front and left side Back and right side orientation Back Right Figure 124.
Face-up bin 1 Tilt the end of the face-up bin upward (callout 1). 2 Pull the bin away from the product. Stapler/stacker bin (stapler/stacker only) or stacker bin (stacker only) Note Throughout this chapter, this bin is called the “stapler/stacker bin.” 1 Unhook the plastic tabs under the bin (callout 2). 2 Move the bin up until it releases from the frame. 2 1 2 Figure 125.
Back inner cover and front inner cover 1 Remove the face-up bin and the stapler/stacker bin (page 173). 2 Use a small flat screwdriver to remove five plastic screw caps (three shown, callout 1) from the back inner cover. 1 Figure 126. Removing the back inner cover and front inner cover (1 of 2) 3 Use a Phillips-head screwdriver to remove five screws from the back inner cover (callout 2). 4 Pull the back inner cover away from the back cover until it releases.
Front cover 1 Remove the face-up bin and the stapler/stacker bin (page 173). 2 Remove the back and front inner covers (page 174). 3 Remove three TX-20 screws (callout 1). 4 Lift the cover up until it releases from the product. 1 Figure 128. Removing the front cover To reinstall CAUTION To prevent damage, make sure the three locking tabs (not shown) are locked into the product frame before you reinstall the screws. Install the long screws in the top holes on the front cover.
Back cover 1 Remove the face-up bin and the stapler/stacker bin (page 173). 2 Remove the back and front inner covers (page 174). 3 Use a small flat screwdriver to release the bubble cover. 4 Remove the cable cover (callout 1). 1 Figure 129. Removing the back cover (1 of 2) 5 Remove three TX-20 screws (callout 2). 6 Press and hold the interlock switch (callout 3) while lifting the cover upward until the cover releases from the product. 7 Guide both cables out of the cavity.
Foot cover Figure 131. 1 Remove the face-up bin and the stapler/stacker bin (page 173). 2 Remove the back and front inner covers (page 174), the front cover (page 175), and the back cover (page 176). 3 Grasp the sides of the foot cover, and pull it out and up to clear the locating pin. 4 Remove the foot cover from the product. Removing the foot cover Door assembly Note 1 Open the door assembly. 2 Remove two TX-20 screws (callout 1) from the plastic straps inside the door.
Controller PCA cover 1 Remove four TX-20 screws (callout 1) from the cover. 2 Rotate the cover to clear the tabs, and then lift the cover away from the product. 1 2 Figure 133. Removing the controller PCA cover To reinstall Make sure you insert the power cord rubber grommet (callout 2) into the slot on the bottom of the cover. Note When properly installed, the rubber grommet is not visible.
Flipper assembly CAUTION 1 Remove the face-up bin and the stapler/stacker bin (page 173). 2 Remove the back and front inner covers (page 174), the front cover (page 175), and the back cover (page 176). 3 Unplug the flipper ribbon cable (callout 1) by pressing the black tabs on the cable connector. To prevent damage to the flipper motor, use the long bit TX-20 screwdriver to remove the top right TX-20 mount screw. The long bit TX-20 screwdriver is shipped with the flipper assembly.
Paper path assembly 1 Remove the face-up bin and the stapler/stacker bin (page 173). 2 Remove the back and front inner covers (page 174), the front cover (page 175), and the back cover (page 176). 3 Unplug the paper-path ribbon cable (callout 1) by pressing the black tabs on the cable connector. 4 Remove two TX-20 mount screws (callout 2). 5 Grasp each side of the assembly, and lift it up to clear the tabs. 6 Pull the assembly away from the product. 2 Figure 135.
Accumulator wings (stapler/stacker only) 1 Grasp each accumulator wing near the shaft. 2 Slide the wings toward the center of the shaft. 3 Apply slight downward pressure to disengage the wings. 4 Compress the locking tabs (callout 1) on the rotation pins, and push the pins out of the mounting holes. 1 Figure 136. Removing the accumulator wings Reinstall note To prevent malfunction, make sure you install the left wing and the right wing on the correct sides.
Paper stopper clips 1 Use a small flat screwdriver to spread the paper stopper clips (callout 1) and to disengage the tabs. 2 Grasp the paper stopper clips and gently pull them away from the product to disengage the shaft. 1 Figure 137. Removing the paper stopper clips Note Paper stopper clips must be installed to prevent paper drops or jams.
Accumulator assembly (stapler/stacker only) 1 Remove the face-up bin and the stapler/stacker bin (page 173). 2 Remove the back and front inner covers (page 174), the front cover (page 175), and the back cover (page 176). 3 Remove the controller PCA cover (page 178). 4 Unplug the ribbon cable (callout 1) from the controller PCA by pressing the black tabs on the cable connector. 1 Figure 138. Note Removing the accumulator assembly (1 of 3) 5 Push the ribbon cable up through the hole.
Hint Removal of the carriage assembly is not required, but removing it makes removing and installing the accumulator very easy. See "Carriage assembly (stapler/stacker only)" on page 185. 7 Remove four TX-20 mount screws (callout 3). 8 Grasp the assembly on each side and lift up to clear the tabs. 9 Pull the assembly away from the product. 2 3 2 4 Figure 140.
Carriage assembly (stapler/stacker only) 1 Remove the face-up bin and the stapler/stacker bin (page 173). 2 Remove the back and front inner covers (page 174), the front cover (page 175), and the back cover (page 176). 3 Remove the controller PCA cover (page 178). 4 Unplug the ribbon cable (callout 1) from the controller PCA by pressing the black tabs. 1 Figure 141. Removing the carriage assembly (1 of 2) 5 Push the ribbon cable up through the hole. 6 Remove two TX-20 mount screws (callout 2).
Offset module (stacker only) 1 Remove the face-up bin and the stapler/stacker bin (page 173). 2 Remove the back and front inner covers (page 174), the front cover (page 175), and the back cover (page 176). 3 Remove the controller PCA cover (page 178). 4 Unplug the ribbon cable (callout 1) from the controller PCA by pressing the black tabs. 1 Figure 143. Removing the offset module (1 of 2) 5 Push the ribbon cable up through the hole. 6 Remove four TX-20 mount screws (callout 2).
Stapler (stapler/stacker only) Note 1 Remove the face-up bin and the stapler/stacker bin (page 173). 2 Remove the back and front inner covers (page 174), the front cover (page 175), and the back cover (page 176). 3 Remove the controller PCA cover (page 178) and the carriage assembly (page 185). 4 Remove the staple cartridge from the stapler. 5 Remove two TX-10 mount screws (callout 1). Gain access to one screw through the hole (callout 2) in the metal plate. 2 2 1 Figure 145.
Controller PCA Note See figure 147 for the stapler/stacker or figure 148 for the stacker. 1 Remove the face-up bin and the stapler/stacker bin (page 173). 2 Remove the back inner cover (page 174) and the back cover (page 176). 3 Remove the controller PCA cover (page 178). 4 Stapler/stacker: Unplug four ribbon cables, the power cable, and the LED cable (upper photo, callout 1). Stacker: Unplug three ribbon cables, the power cable, and the LED cable (lower photo, callout 1).
Power supply Note See figure 149 for the stapler/stacker or figure 150 for the stacker 1 Remove the controller PCA cover (page 178). 2 Unplug the power cable (callout 1) from the power supply. 3 Unplug the cable from the controller PCA (callout 2). 4 Stapler/stacker: Remove eight TX-20 screws (callout 3) from the cover, and lift out the power supply and the cover. Stacker: Remove one TX-20 screw (callout 3) from the bracket, and lift out the power supply and the bracket. 2 1 3 Figure 149.
LED PCA 1 Remove the face-up bin and the stapler/stacker bin (page 173). 2 Remove the front inner cover (page 174). 3 Remove the front cover (page 175). 4 Unplug one cable (callout 1) from the LED PCA. 5 Push the release tab (callout 2) and lift out the LED PCA. 1 2 Figure 151.
Interlock switch 1 Remove the face-up bin and the stapler/stacker bin (page 173). 2 Remove the back inner cover (page 174) and the back cover (page 176). 3 Unplug two cable connectors (callout 1) from the interlock switch. 4 Squeeze the top and the bottom of the interlock switch (callout 2), and push the switch through the hole. 2 1 2 Figure 152.
Safety switch assembly (stapler/stacker only) 1 Press the two tabs on the sides of the safety switch assembly cover (callout 1) to release it from the frame. 2 Lift the cover away from the assembly. 3 Disconnect two cables (callout 2) from the safety switch assembly. 4 Press the tabs on the bottom of the safety switch assembly (callout 3), and lift the assembly away from the product. 1 2 3 Figure 153.
Optical sensors 1 Remove the face-up bin and the stapler/stacker bin (page 173). 2 Remove the back and front inner covers (page 174), the front cover (page 175), and the back cover (page 176). 3 Remove the controller PCA cover (page 178). 4 Remove the accumulator assembly (stapler/stacker only) (page 183). 5 Press the plastic track lock tab (callout 1) until it clears the product frame. 6 Slide the plastic track down and away from the product. 1 Figure 154.
Note The sensor is secured with an adhesive strip. You must apply pressure to dislodge the sensor. 1 4 1 3 Figure 156. Removing the optical sensors (3 of 3) Cable assembly 1 Remove the face-up bin and the stapler/stacker bin (page 173). 2 Remove the back inner cover (page 174) and the back cover (page 176). 3 Remove the controller PCA cover (page 178). 4 Disconnect the ribbon cables from the flipper assembly, the path assembly, and the controller PCA.
Casters Stationary caster 1 Lay the product on the front or back side, so that the caster being replaced is off the floor. 2 Remove one TX-20 screw (callout 1) from the inside of the frame. 3 Rotate the caster 90° to clear the tabs and pull the caster away from the product. 2 1 Figure 158. Removing the stationary caster Adjustable caster 1 Lay the product on the front or back side, so that the caster being replaced is off the floor.
196 Chapter 6 Removal and replacement C8519-90912
7 Troubleshooting Chapter contents Troubleshooting process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199 Basic troubleshooting process flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 Preliminary operating checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 General troubleshooting information . . . . . . . . . . . . . . . . . . . . . . .
Media troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Determine the problem source: print media or printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Isolate a paper path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Isolate a media brand. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting process The troubleshooting process is a systematic approach that addresses the primary problems first, and then other problems to discover the causes for printer malfunctions and errors. The "Basic troubleshooting process flow" on page 200 illustrates the primary steps for troubleshooting the printing system. Each heading depicts a primary troubleshooting step. A “YES” answer to the questions allows troubleshooting to proceed to the next primary step.
Basic troubleshooting process flow Figure 160.
Figure 161.
Preliminary operating checks Make sure that the following conditions are met before troubleshooting a specific printer problem: Note l The printer is plugged in, and specified power is delivered. l The selected tray contains media that has been properly loaded and adjusted. l The print cartridge is installed properly. l The printer receives maintenance on a regular basis. l Any I/O devices are properly installed. l The customer is using acceptable print media.
General troubleshooting information Miscellaneous problems and solutions The following lists symptoms and typical solutions to those problems. Abnormal noises are evident, such as grinding or chattering when the main motor is energized. From the print cartridge area: l If print cartridge is new, automatic seal roll-up will cause noise until seal removal is complete. l If not new, replace the print cartridge. From the fuser area: l Reseat the fuser. l Remove and reinstall the fuser.
Wrinkling envelopes. l Verify the input tray is tray 1. l Verify the output destination is the face-up bin. l Place the fuser levers in the up position and retry the envelopes. l Try new media. Make sure that the envelopes are within specifications. See the HP LaserJet Printer Family Print Media Guide. Poor fusing. l Make sure that the fuser levers are in the down position for cut sheet paper. l Verify that all packing spacers have been removed from inside the printer. l Try new media.
Tray 2, tray 3, and optional tray 4 Note Standard sizes are automatically detected in these trays, so you do not need to set the size manually. To set the size for custom paper in tray 2, tray 3, and optional tray 4: 1 Press . 2 Use or to scroll to Paper Handling and press . 3 Use or to scroll to Tray X Size, where X is the tray you are setting, and press 4 Use or to scroll to Custom and press 5 Use or to select the unit of measure (Millimeters or Inches) and press . .
Power-on It is important to have the printer control panel functional as soon as possible in the troubleshooting process so that the printer diagnostics can assist in locating printing errors. Table 28. Power-on defects or blank display Problem Action Is AC power available at the printer power receptacle? Verify that power is available. See "Electrical specifications" in Chapter 1. Is the printer on/off switch set to Push the switch to the on position.
Troubleshooting with control panel messages Control panel display The control panel should display READY, PAUSED, or POWERSAVE ON. For information about errors displayed, see the event log. If the display is blank, see "Power-on" on page 206. Event log page Use the event log to diagnose and troubleshoot printer errors and intermittent failures. You can either print or display the event log from the control panel. (Select PRINT EVENT LOG or SHOW EVENT LOG.
1 Check the event log for specific error trends in the last 10,000 printed pages. 2 Ask the customer for any observed error trends. (For example, do jams tend to occur in a specific area of the printer?) 3 Record any specific error trends. 4 See “Printer message tables” on page 211 and follow the recommended action. Sample event log A Figure 162.
Display the event log The displayed event log allows the customer to scroll through the contents of the event log from the control panel. Selecting this will display the 50 most recent events, most recent first. Use or to scroll through the event log contents. If the event log is empty, the control panel will display EVENT LOG IS EMPTY.
Control panel messages Be sure to read the exact text of the control panel message, including the error message number and the text, in order to locate the error message in the tables. This control panel stores enhanced information. Printer messages displayed on the control panel provide six categories of information. Each message category is assigned a priority. If more than one condition occurs at the same time, the highest priority message is displayed.
Control panel and event log message format The format of control panel messages are: l 13.XY.ZZ JAM INSIDE DUPLEXER l WAITING FOR TRAY XX TO LIFT l 40 EIO X BAD TRANSMISSION The event log messages have the following format: Note l 3 13.xy.zz 0 JAM INSIDE DUPLEXER l 2 00.00.00 0 WAITING FOR TRAY XX TO LIFT l 1 40.00.00 0 EIO X BAD TRANSMISSION Be sure to print a configuration page to properly identify the input or output device configured.
Table 29. Alphabetic error messages (continued) Control panel message [FS] FILE SYSTEM IS FULL To enter menus press alternates with Event log error message Description Recommended action l A PJL file system command l was received that attempted l to store something on the file’s system, but was unsuccessful. [FS] will be: READY To enter menus press Clear the file system. Check with the system administrator.
Table 29. Alphabetic error messages (continued) Control panel message CARTRIDGE LOW-XXXX PAGES ESTIMATED FOR HELP PRESS Event log error message Description Recommended action l A low toner situation has been encountered, and the “cartridge low” setting is set to stop. The XXXX starts at 8 percent toner capacity remaining. When estimated pages reaches 0, the message is replaced with “REPLACE CARTRIDGE.” l The print cartridge has reached 0 percent of mechanical life.
Table 29. Alphabetic error messages (continued) Description Recommended action CLOSE RIGHT DOOR For help press l l CREATING CLEANING PAGE l The cleaning page is being generated. DATA RECEIVED PRESS TO CONTINUE l The printer has received data. l DELETING l The printer is deleting the stored job. DETECTABLE SIZE IN TRAY XX For help press l Standard size media is loaded l in tray XX, but the switch is set for custom. DIFFERENT PAPER SIZES IN JOB l The current job has different paper sizes.
Table 29. Alphabetic error messages (continued) Control panel message INCORRECT PIN Event log error message Description l l Recommended action The wrong PIN has been l entered. This message will only display for 2 seconds, then return to the previous screen so the user can re-enter the pin. Re-enter the PIN. INITIALIZING l The printer has just been turned on. l No action required. INITIALIZING PERMANENT STORAGE l The printer has just been turned on. Permanent storage is initializing.
Table 29. Alphabetic error messages (continued) Control panel message MEMORY FULL STORED DATA LOST Event log error message Description l l Recommended action There is no available memory l in the printer. l The current job may not print correctly, and some resources (downloaded fonts) may have been lost. Simplify job. Install additional memory. MEMORY SETTINGS CHANGED l The resource saving or I/O l buffering settings had to be l changed by the printer.
Table 29. Alphabetic error messages (continued) Control panel message Event log error message Description Recommended action l PAUSE/RESUME has been l pressed. Printing has stopped but the job may still be received. PERFORM PRINTER MAINTENANCE For help press l The printer has reached its prescribed printed page threshold of 350,000 pages between maintenance periods. l Perform printer maintenance. PERFORMING UPGRADE l A firmware upgrade is being received. l No action required.
Table 29. Alphabetic error messages (continued) Control panel message PROCESSING COPY X OF Y Event log error message Description l l PROCESSING FROM TRAY X l l Recommended action The printer is currently l processing or printing collated copies. The message indicates the copy X of Y copies is being processed. No action required. The printer is processing the current job. Paper is being pulled from tray X. l No action required. l No action required.
Table 29. Alphabetic error messages (continued) Description Recommended action STAPLER JAM For help press l The stapler is jammed. l Clear the jammed staples. STAPLER LOW ON STAPLES For help press l The stapler is running out of staples. l Replace the staple cartridge. STAPLER OUT OF STAPLES For help press l The stapler is out of staples. l Replace the staple cartridge. STAPLING INTERRUPTION l The stapler has an obstruction l that must be removed before stapling can continue.
Table 29. Alphabetic error messages (continued) Description Recommended action TYPE MISMATCH TRAY XX= [TYPE] For help press l The system has detected a transparency in the paper path coming from tray XX. l UNABLE TO STORE JOB l A memory, disk, or configuration problem has prevented the job from being stored. l UNSUPPORTED SIZE IN TRAY XX l A job has been received that l requires a specified size media that is not supported by l the printer. Reformat the print job to use a supported size.
Numeric error messages Table 30. Numeric error messages Control panel message Event log error message Description 13.01.00 JAM IN TRAY 1 FOR HELP PRESS 13.01.00 l Recommended action A page is jammed in the paper l path at the tray 1 feed area. l l l l l 13.01.00 JAM IN TRAY X FOR HELP PRESS 13.01.00 l A page is jammed in the paper l path at tray X feed area. l l l l l 13.01.00 JAM INSIDE 13.01.00 RIGHT DOOR FOR HELP PRESS l A page is jammed in the paper l path at the feed area.
Table 30. Numeric error messages (continued) Control panel message Event log error message Description 13.03.00 JAM IN TRAY X FOR HELP PRESS 13.03.00 l Recommended action A page is jammed in the paper l path at tray X feed area. l l l l l 13.03.00 JAM INSIDE 13.03.00 RIGHT DOOR FOR HELP PRESS l A page is jammed in the paper l path at the feed area. l l l l l 13.05.00 JAM INSIDE 13.05.00 FRONT DOOR FOR HELP PRESS l A page is jammed in the paper l path at the fuser area. l l l l 13.05.
Table 30. Numeric error messages (continued) Control panel message Event log error message 13.06.00 JAM INSIDE 13.06.00 LEFT DOOR FOR HELP PRESS Description l Recommended action A page is jammed in the paper l path at the fuser area. l l 13.09.00 JAM INSIDE 13.09.00 FRONT DOOR For help press l A page is jammed in the paper l path at the face-down bin. l l l l l 13.09.00 JAM INSIDE 13.09.00 LEFT DOOR For help press l A page is jammed in the paper l path at the face-down bin. l l l l l 13.0A.
Table 30. Numeric error messages (continued) Control panel message Event log error message 13.10.00 JAM INSIDE 13.10.00 DUPLEXER DOOR For help press Description l Recommended action A page is jammed in the paper l path at the reversing area. l l l 13.10.00 JAM INSIDE 13.10.00 LEFT DOOR For help press l A page is jammed in the paper l path at the reversing area. l l l 13.11.00 JAM INSIDE 13.11.00 DUPLEXER DOOR For help press l A page is jammed in the paper l path at the reversing area.
Table 30. Numeric error messages (continued) Control panel message Event log error message Description 13.11.08 JAM IN INPUT ACCESSORY For help press 13.11.08 l Recommended action A page is jammed in the paper l path at the VTU registration area. l l l l 13.11.09 JAM IN INPUT ACCESSORY For help press 13.11.09 l A page is jammed in the paper l path at the right door area. l l 13.12.00 JAM INSIDE 13.12.00 DUPLEXER DOOR For help press l A page is jammed in the paper l path at the duplexer.
Table 30. Numeric error messages (continued) Control panel message Event log error message Description 13.12.03 JAM IN LEFT ACCESSORY For help press 13.12.03 l Recommended action Media is jammed in the flipper l entry area. l l l 13.12.04 JAM IN LEFT ACCESSORY For help press 13.12.04 l Media is jammed in the flipper l internal area. l l l 13.12.10 JAM IN LEFT ACCESSORY For help press 13.12.0A l Media was present in the paper path when power was turned on. l l l l l 13.12.
Table 30. Numeric error messages (continued) Control panel message Event log error message Description Recommended action 13.12.20 JAM IN LEFT ACCESSORY For help press 13.12.14 l l Media is present in the accumulator when power was turned on. l l l 13.12.21 JAM IN LEFT ACCESSORY For help press 13.12.15 l Media is jammed in the accumulator entry area. l l l l 13.12.22 JAM IN LEFT ACCESSORY For help press 13.12.16 13.12.23 JAM IN LEFT ACCESSORY For help press 13.12.
Table 30. Numeric error messages (continued) Control panel message Event log error message Description Recommended action 13.12.40 JAM IN LEFT ACCESSORY For help press 13.12.28 l l Media is present in the offset module when power is turned on. l l l 13.12.41 JAM IN LEFT ACCESSORY For help press 13.12.29 13.12.42 JAM IN LEFT ACCESSORY For help press 13.12.2A l The offset module did not reach its target position.
Table 30. Numeric error messages (continued) Control panel message Event log error message 13.20.00 JAM INSIDE 13.20.00 LEFT DOOR For help press Description l l Recommended action A page is jammed in the paper l path. Paper is present in the printer. l l l Clear the jam in the indicated area. Closing the door will cause the printer to attempt to clear the paper path. Verify proper seating of the leaf springs under the HVPS. If the jam persists, replace the fuser.
Table 30. Numeric error messages (continued) Control panel message Event log error message Description Recommended action 13.30.00 JAM IN TRAY X FOR HELP PRESS 13.30.00 l l A page is jammed in the pickup area of tray X. l l l l l 13.30.00 JAM INSIDE 13.30.00 RIGHT DOOR FOR HELP PRESS l A page is jammed in the pickup area of tray 1. l l l l l l 13.31.00 JAM INSIDE 13.31.00 FRONT DOOR For help press l A page is jammed in the paper l path at the fuser area. l l 13.31.00 JAM INSIDE 13.31.
Table 30. Numeric error messages (continued) Control panel message Event log error message 21 PAGE TOO COMPLEX 21 For help press Description Recommended action l l The page formatting process was too complex. alternates with 21 PAGE TOO COMPLEX To continue press l l To continue printing, press . (Some data will be lost.) Simplify the print job. To print the job without losing data, set PAGE PROTECT=ON in the configuration menu. Do not leave the PAGE PROTECT=ON or print performance will degrade.
Table 30. Numeric error messages (continued) Control panel message Event log error message Description 40 EIO X BAD TRANSMISSION To continue press 40 l Recommended action A connection with the EIO card l in slot X has been abnormally interrupted. l l l l l l 41.3 UNEXPECTED SIZE TRAY XX For help press 41.3 l alternates with Tray XX has been loaded with l media that is longer or shorter in the feed direction than the size configured for the tray.
Table 30. Numeric error messages (continued) Control panel message Event log error message Description Recommended action 50.X FUSER ERROR For help press 50.X l l 1 2 3 4 5 A fuser error has occurred where X is detailed below. Low fuser temperature. Fuser warm up service. High fuser temperature. Faulty fuser. Inconsistent fuser. l l l l l l 51.X PRINTER ERROR For help press 51.X l 1 2 alternates with A printer error has occurred where X is detailed below. Beam detect error. Laser error.
Table 30. Numeric error messages (continued) Control panel message Event log error message Description Recommended action 55.X PRINTER ERROR For help press 55.X l l A temporary printer error has occurred. l l alternates with To continue press l l l l l 56.X PRINTER ERROR For help press 56.X l A temporary printer error has occurred. l l l alternates with To clear the error, press . Turn power off and then on. Verify that maintenance kit is not due.
Table 30. Numeric error messages (continued) Control panel message Event log error message Description Recommended action 64 PRINTER ERROR For help press 64 l l Scan buffer error. l alternates with To continue cycle power l l 66.11.00 INPUT DEVICE FAILURE For help press 66.11.00 l A failure in an external input device has occurred. l l l l l 66.12.20 OUTPUT DEVICE FAILURE For help press 66.12.14 l l l The retainer sensor never activated.
Table 30. Numeric error messages (continued) Control panel message Event log error message Description Recommended action 66.12.70 OUTPUT DEVICE FAILURE For help press 66.12.46 l l l EEPROM error. EEPROM on the controller PCA is damaged. l l alternates with CHECK CABLES AND CYCLE POWER l 68.X 68.X PERMANENT STORAGE WRITE FAIL For help press l l alternates with 68.X PERMANENT STORAGE WRITE FAIL To continue press 68.0 PERMANENT STORAGE ERROR For help press 68.
Table 30. Numeric error messages (continued) Control panel message Event log error message Description Recommended action 79.XXXX PRINTER ERROR To continue cycle power 79.XXXX l l A critical hardware error has occurred. l l 81 SERVICE For help press 80.XXXX EIO ERROR 81 80.XXXX l l A temporary error has occurred while testing the printer. l l The EIO accessory card in slot l X has encountered a critical error. l l l 99 SERVICE For help press C8519-90912 99 l Firmware flash failure.
User/service level diagnostics Paper path test The paper path test can be used to verify that various paper paths are working properly or to troubleshoot problems with tray configuration.
Table 31.
Engine test The engine test verifies that the print engine is functioning correctly. This test is very useful for isolating printer problems since the formatter is completely bypassed during an engine test. The engine test prints a full page of horizontal lines across the entire printable area. Note Paper can be picked up from tray 2 or tray 3 if the formatter is installed. If the formatter is removed, the tray you do not want to print from must be open.
Setting the display language 1 Press 2 Use or to scroll to CONFIGURE DEVICE, and then press 3 Use or to scroll to SYSTEM SETUP, and then 4 Use or to scroll to LANGUAGE, and then 5 Use or to scroll to the desired language, and then to enter the menus. . . . . Re-initializing a hard disk When a hard disk is installed, it must be initialized.
Service level diagnostics Service menu The service menu printer commands should be used only by authorized service personnel. The service menu can only be entered by using the PIN code 00900001. While in the service menu, you can: l Clear the event log. l Verify and set the page count and serial number. These are displayed on the configuration page. l Change the maintenance intervals. l Set the cold reset paper size. If a stapler/stacker is installed: l Calibrate the staple position.
Cold reset Cold reset clears all data from the printer memory and sets all the defaults back to the factory settings. CAUTION Performing a cold reset resets the Jetdirect configuration. To avoid making changes to your network configuration, remove the HP Jetdirect print server before performing a cold reset. Note If possible, print a configuration page and menu map prior to performing a cold reset. This will document current settings for later reference. To perform a cold reset 1 Turn off the printer.
To initialize NVRAM NVRAM initialization resets all the defaults back to the factory settings. NVRAM initialization should always be executed immediately after replacing the firmware or the formatter board. This procedure aligns the firmware with the formatter. Not performing NVRAM initialization could result in deterioration of print quality. Note If possible, print a configuration page and menu map prior to performing a NVRAM initialization. This will document current settings for later reference.
Engine test The engine test verifies that the print engine is functioning correctly. This test is very useful for isolating printer problems since the formatter is completely bypassed during an engine test. The engine test prints a full page of horizontal lines across the entire printable area. Note Paper can be picked up from tray 2 or tray 3 if the formatter is installed. If the formatter is removed, the tray you do not want to print from must be open.
Accessories diagnostics 2000-sheet feeder diagnostics The 2000-sheet feeder can run stand-alone diagnostics to test the device motors, functionality, and sensors. You will need one power cord, one #2 Phillips screwdriver, and a small flat-blade screwdriver for the DIP switches. 2000-sheet feeder diagnostics label The following label is on the inside of the 2000-sheet feeder back cover: Figure 168.
2000-sheet feeder stand-alone running test This test verifies that the 2000-sheet feeder is functioning properly. For this test, use the LED located on the controller PCA on the 2000-sheet feeder. Note If the 2000-sheet feeder is mounted underneath the printer, jams may occur because the printer will not pick up the paper. To prevent excessive jams during this test, feed only six to eight pages. 1 Make sure that paper is in the tray.
2000-sheet feeder light pattern interpretation If the 2000-sheet feeder is working properly, it will pick up paper from the tray and feed it to the printer, and the bottom service light will flash regularly every 0.5 seconds. Table 34. 2000-sheet feeder light pattern interpretation Long (1 sec.) Short (0.03 sec.) Error number/ meaning Recommended action 3 1 66.11.01 Lifter malfunction Lift the tray by hand to make sure that it lifts freely.
3000-sheet stapler/stacker and stacker diagnostics Setting the device to service mode Perform the following steps to put the device into service mode: CAUTION Note Make sure the printer is turned off before performing this test. If the printer is on when service mode is enabled, damage to the device and/or the printer could occur. 1 Remove the controller PCB cover. 2 Slide the service mode switch on the controller PCB to the “ON” position (toward you).
3000-sheet stapler/stacker and stacker diagnostic labels The following labels are on the stapler/stacker and stacker PCB covers: Figure 169. Stapler/stacker label Figure 170.
Stapler test/stacker test For the stapler test/stacker test, use letter- or A4-sized paper. Feed the paper straight, centered, and slowly to avoid skews and jams. If a jam occurs, release the interlock switch and depress it again to reset the device. Note Any stapler settings or offset settings configured at the printer control panel are ignored during the stapler test/stacker test. 1 Feed two sheets of paper into the paper input area. The sheets are sent to the face-up bin.
3000-sheet stapler/stacker staple position calibration The staple position calibration can be used to verify that the stapler is working properly or to troubleshoot problems with stapler/stacker.
Service light pattern interpretation The PCB of the stapler/stacker and stacker has three lights mounted. The lights are used to report abnormalities. The lights are of three colors: green, yellow, and red. The following are the functionality of the lights: l Green light functionality—solid green indicates the device is ok. If any of the doors are open, this light will be flashing.
Jam troubleshooting Media jams occur either when media does not reach or does not clear a photosensor along the printer paper path in a specific amount of time. If a paper jam occurs, a 13.xx PAPER JAM message is displayed on the printer control panel. The following lists general questions you should ask and topics you should explore prior to troubleshooting: Table 36. General jam troubleshooting questions Problem Action What is the frequency of the jams (e.g.
Jams Jams occur most often when: l Paper trays are not correctly loaded. The print media does not meet the specifications listed in the HP LaserJet Printer Family Print Media Guide. l The media is in poor condition. l The printer needs cleaning. If a jam occurs, the printer will display a 13.x PAPER JAM message on the control panel. See "Printer message tables" on page 211 for detailed descriptions of the 13.x messages and the recommended actions to resolve the errors.
Evaluate the information pages From the printer control panel, you can print pages that give details about the printer and its current configuration. The following information pages are described: l Configuration page • If JetDirect card is installed, Jetdirect page l File directory page l Usage page l File directory page For a complete list of the printer information pages, print a menu map. See "Menu map" in chapter 3.
A 2 D E B 2 E 2 C 2 F G Figure 171. Sample configuration page Note If an HP Jetdirect EIO card is installed, an HP Jetdirect configuration page will print out as well.
Verify installed options In the installed personalities and options section on the configuration page, look for options such as hard disk information, DIMM types (RAM or ROM), and DIMM sizes. Verify that the options installed in the printer are reflected in the configuration page. If an installed device is not shown on the configuration page, see table 37 below for recommended actions.
Jetdirect page Use the Jetdirect page to view current network settings, to help troubleshoot printer problems, or to verify network statistics or protocol information. Jetdirect page elements A HP Jetdirect configuration B Network statistics C Protocol information A 2 2 B 2 C Figure 172.
Supplies status page Use the supplies status page to view current printer supply status, to help troubleshoot printer problems, or to verify printer information. Supplies page elements A Supplies ordering information B Cartridge information C Other supplies information D Printer information A 2 B 2 2 C D 2 Figure 173.
Usage page The usage page is designed to fit into a pay-per-page (PPP) model. A reseller can configure the usage page with instructions for a user to send the information back to the reseller in order to prepare bills. Print a usage page from the printer control panel (or access the information remotely from HP Web JetAdmin) to determine how many simplex or duplex pages of each paper size have been scanned on the copy module and printed on the printer.
File directory page Use the file directory page to view current directory structures, to help troubleshoot printer problems, or to verify storage capabilities. File directory page elements A Directory information 2 A Figure 175.
Image-formation troubleshooting When working with customers, obtain a print sample before troubleshooting the printer. Ask the customer to describe the quality expected from the printer. The print sample also helps clarify the customer’s description of the problem. Often an image-formation problem can be linked to media that is outside the specifications Hewlett-Packard has established for optimum printer performance. See "Media troubleshooting" on page 274 for help with persistent image-formation problems.
Check the print cartridge Image-formation defects are often the result of problems with the print cartridge. Use the following list to verify that the print cartridge is still operating correctly. Perform all of the following checks before replacing the print cartridge. l Verify that the print cartridge has toner. • Full print cartridge weight is approximately 4220 grams (9.28 lb). • Empty weight is approximately 2700 grams (5.94 lb).
Image defect tables The printer output quality is subject to user judgment. This section of the manual helps define printquality defects and the factors that affect print quality. The print samples shown in the following figures illustrate some print-quality defects. Keep copies of print-quality defects you encounter in the field and an explanation of their causes to use for future reference.
Table 39. Image defects Problem Cause Solution Black page The high-voltage power supply connections are contaminated. l l The high-voltage power supply is installed improperly. l Note If the high-voltage power supply l has been removed and replaced, it might not be seated properly. Defective primary charging roller. l The laser drive circuitry is damaged l on the DC controller board so that the laser is always on. White page Replace the print cartridge.
Table 39. Image defects (continued) Problem Cause Solution Wrinkles or creases Print media does not meet printer l specifications or is stored improperly. l l Printer operating environment does not meet specifications. l Make sure the printer operating environment meets specifications. Print media is loaded incorrectly. l Make sure print media is loaded correctly and that the guides fit properly against the media stack. Wrong tray. l Print from a different tray (such as tray 1).
Table 39. Image defects (continued) Problem Cause Solution Contamination on back Contamination inside printer (tray l separation roller, feed roller, transfer charging roller, fuser, print cartridge). l l l Print media does not meet printer l specifications or is stored improperly. l l Printer is due for preventive maintenance kit. Distorted images l l Print media does not meet printer specifications or is stored improperly. l l Printer’s operating environment does l not meet specifications.
Table 39. Image defects (continued) Problem Cause Solution Bubbles No drum ground path. l l Check the drum ground spring and reconnect it, if necessary. Replace the high-voltage power supply. Note With no ground path, the drum cannot discharge. The negative charge on the drum repels toner and leaves the page with bubble print. Gray background Print media does not meet printer l specifications or is stored improperly.
Table 39. Image defects (continued) Problem Cause Light print, dark print, or Wrong toner density setting. fade Transfer charging roller is defective. Solution l From the configure device menu on the control panel, adjust the toner density setting. Make sure EconoMode is off. l Replace the transfer charging roller. Print media does not meet printer l specifications or is stored improperly. l l Poor contact to the high-voltage power supply.
Table 39. Image defects (continued) Problem Cause Solution Repeating defects Contamination or defect on a roller. l Page skew l Print media does not meet printer specifications or is stored improperly. l l Print media is not loaded correctly or l trays are not adjusted properly. Toner smears Make sure print media is loaded correctly and that the guides fit properly against the media stack. l Be sure that the registration assembly is installed correctly. Contamination in printer.
Table 39. Image defects (continued) Problem Cause Solution Vertical black lines Defective print cartridge. l Replace the print cartridge. Contaminated fuser entrance guide. l Clean the guide. Scratches on the fuser. l Replace the fuser. Worn fuser film. l l Set the fuser to a lower temperature mode. Replace the fuser. Contaminated static charge eliminator teeth. l Clean the static charge eliminator. Poor contact between the static charge eliminator and the highvoltage power supply.
Repeating defect ruler Repetitive print defects are usually caused by a specific roller in the printer or the print cartridge. Use the figure below to isolate the cause of repetitive print defects. Align the first occurrence of the defect with the top of the “ruler” (at the top or bottom of the misprinted page), and measure to the next occurrence of the defect to determine the roller in question. When the defect pattern matches the pattern of the ruler, replace the indicated roller. Figure 177.
Media troubleshooting Media defects can cause jams and image defects. If the previously described conditions are corrected and do not eliminate the printing problem, continue to investigate the media as the source of the defect. Problems with print media are sometimes difficult to detect. Follow a standard troubleshooting procedure to help isolate media-related problems. The steps to follow are: l "Determine the problem source: print media or printer" on page 274. l "Isolate a paper path" on page 274.
Determine whether the printer is experiencing misfeeds or multifeed jams The following are some possible causes of misfeeds or multifeed jams: l The media might be too heavy. Check basis weight and measure caliper. See "Basis weight field test" and "Caliper field test" in chapter 2. l The paper might be too smooth. Check the finish. See "Paper finish field test" in chapter 2. l The paper might be too heavy or too light. Check basis weight. See "Basis weight field test" in chapter 2.
Communication troubleshooting Communications check Note Communication problems are normally customer responsibility. Time spent attempting to resolve these problems might not be covered by the Hewlett-Packard warranty. Refer the customer to the network administrator for assistance in troubleshooting network problems. Test message After the printer is installed, verify communications between the printer and the IBM-compatible computer.
Wiring diagram Figure 178.
278 Chapter 7 Troubleshooting C8519-90912
8 Parts and diagrams Chapter contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280 Ordering parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280 Consumables, supplies, accessories, FRUs, and documentation . . . . . . . . . . . . . . . . . . . . 281 Common hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction The figures in this chapter illustrate the major subassemblies in the printer and their component parts. A table accompanies each exploded-view diagram. Each table lists the item number for the replaceable part, the associated part number for the item, the quantity, and a description of the part. Note When looking for a part number, pay careful attention to the voltage listed in the description column to ensure that the part number selected is for the correct printer model.
Consumables, supplies, accessories, FRUs, and documentation Table 40.
Table 40. Consumables, supplies, accessories, FRUs, and documentation (continued) Product number Service number Exchange number Description 5969-3412 HP Jetdirect Print Server JetAdmin Setup Guide C8519-90901 HP LaserJet 9000 Series Printer Start guide—U.S.
Common hardware Table 41. Hardware table Example Description Sizes Uses Screw M3 by 6 mm M3 by 8 mm M4 by 8 mm M4 by 10 mm Screw, tapping M3 by 6 mm M3 by 8 mm M3 by 30 mm M4 by 6 mm M4 by 12 mm To hold plastic to metal (excluding the control panel) Screw, pan head M3 by 6 mm To hold plastic to plastic Screw, w/washer M3 by 6 mm M3 by 8 mm M3 by 7 mm M4 by 6 mm M4 by 12 mm To hold plastic to metal (excluding the covers) E-ring XD9-0136-000CN XD9-0134-000CN To hold gears in place Table 42.
Illustrations and parts lists The following illustrations and parts tables list the field replaceable units (FRUs) for this printer. Two tables at the end of this chapter list all of the parts shown in this chapter: table 68, “Alphabetical parts list,” on page 326 lists the parts in alphabetical order, and table 69, “Numerical parts list,” on page 334 lists the parts in numerical order by part number. Both tables list the appropriate figure in this chapter that shows the part.
Table 43.
Left door and diverter Figure 180.
Table 44.
Right cover assembly Figure 181.
Table 45.
Internal Internal components See figure 188 See figure 187 See figure 186 See figure 191 See figure 190 Figure 182.
Table 46.
See figure 193 See figure 192 Figure 183.
Table 47.
Figure 184.
Table 48.
Figure 185.
Table 49.
Drum feed drive assembly Figure 186. Drum feed drive assembly Table 50.
Fuser delivery drive assembly Figure 187. Fuser delivery drive assembly Table 51.
Cartridge lifter assembly Figure 188. Cartridge lifter assembly Table 52.
500-sheet trays (tray 2 and 3) Figure 189. 500-sheet trays (tray 2 and 3) Table 53. 500-sheet trays (tray 2 and 3) Ref C8519-90912 Description Part number Qty 500-sheet trays RG5-5635-000CN 1 1 Custom/standard switch RB2-5813-000CN 1 2 Spring, torsion RB2-5816-000CN 1 3 Screw, W/W, M3 by 29.
Paper input unit (PIU) Figure 190. PIU Table 54.
Registration assembly Figure 191. Registration assembly Table 55.
Transfer roller assembly Figure 192.
Table 56.
Delivery assembly Figure 193.
Table 57.
PCB assembly location Figure 194.
Table 58.
2000-sheet feeder (optional tray 4) 2000-sheet feeder (optional tray 4) main body Figure 195.
Table 59.
Figure 196.
Table 60.
2000-sheet feeder (optional tray 4) drive assembly Figure 197. 2000-sheet feeder (optional tray 4) drive assembly Table 61.
2000-sheet feeder (optional tray 4) PCB location Figure 198. 2000-sheet feeder (optional tray 4) PCB location Table 62.
Optional tray 1 Optional tray 1 assembly Figure 199.
Table 63.
Paper handling output device 3000-sheet stapler/stacker Figure 200.
Table 64.
Figure 201.
Table 65.
3000-sheet stacker Figure 202.
Table 66.
Figure 203.
Table 67.
Alphabetical parts list Table 68.
Table 68.
Table 68.
Table 68.
Table 68.
Table 68.
Table 68.
C8519-90912 Alphabetical parts list 333
Numerical parts list Table 69.
Table 69.
Table 69.
Table 69.
Table 69.
Table 69.
Table 69.
C8519-90912 Numerical parts list 341
342 Chapter 8 Parts and diagrams C8519-90912
Index Symbols * (asterisk), next to control panel selections 46 Numerics 2000-sheet input tray. See tray 4 3000-sheet stacker. See stacker 3000-sheet stapler/stacker. See stapler/stacker 500-sheet trays.
operations 107 removing 185 cartridge fan, removing 157 cartridge lifter assembly, diagrams and part numbers 300 cartridge release lever, removing 134 cartridges capacity 16 checking 264 components, operations 94 error messages 212, 213 handling 75 image formation operations 93 level detection operations 88, 95 low, settings 62 memory PCA, removing 153 noise, troubleshooting 203 non-HP 76 ordering 24 part numbers 281 refilled 76, 244 removing 70, 135 ROM, memory operations 95 seals, automatic roll-up 95 sto
tray 1 driver PCB 102 tray 4 105 creases, troubleshooting 267 critical error messages 210 See also messages CSSO (Customer Services and Support Organization) 24 curl grain test 37 troubleshooting 267, 274 current capacity, specifications 19 custom media detectable size message 214 jams, troubleshooting 254 tray specifications 41 Customer Services and Support Organization (CSSO) 24 customer support 25 cut edge condition field test, media 38 cutouts, avoiding media with 34 D dark pages, troubleshooting 266,
See also hard disks critical error messages 237 installing 63 slots 62, 90 supported 17 electrical specifications 19 electrostatic discharge (ESD), precautions for 117 embossed media, specifications 34 engine control system block diagram 84 formatter operations 90 engine test performing 240, 245 troubleshooting 206 envelopes fuser lever positioning 267 grain test 37 output path 274 sizes supported 41, 44 specifications 31 storing 35 wrinkled, troubleshooting 204 environmental product stewardship program 23
flipper, stapler/stacker feeding operations 107 jam detection operations 108 removing 179 flowchart, troubleshooting 200 focusing lenses, operations 92, 93 fonts compression, MEt 91 downloaded, storage operations 90 factory default settings 52 included 16 list, printing 60 foot cover (stacker and stapler/stacker), removing 177 foreign interface connector, locating 21 formatter bypassing 240, 245 locating 20 operations 90 removing 148 tray 4 feeding operations 104 voltage 89 forms, preprinted fuser modes 51
I/O slots, locating 21 I/O timeout settings 62 image defect tables 265 image formation operations 93 image quality cleaning page, creating 73 settings 62 troubleshooting 263 indicator lights. See LEDs Information menu, settings 60 information pages configuration 256 file directory 262 Jetdirect 259 printing 256 supplies status 260 usage 261 InfraRed Connect.
jams, error messages 223, 229 open, error message 213 removing 124 left rail cover, removing 127 left side cover (tray 4), removing 159 left side view, diagrams 118 left top cover, removing 120 lenses, operations 92, 93 letterhead fuser modes 51 fusing compatibility test 38 specifications 33 level, media detection operations tray 2 or 3 96 tray 4 105 level, toner 88, 95 levers, fuser 267 life expectancies, print cartridges 16 lifter motor (SMT2) 101 lifter position, media-level detection operations tray 2 o
drum 101, 154 error messages 234 main, operations 93 noise, troubleshooting 203 pickup and feed system 101 tray 4 drive, removing 165 tray 4, testing 246 voltage 89 MS-DOS prompt, communications test 276 multifeeds See also jams prevention operations 96 troubleshooting 275 multipurpose tray. See tray 1 N navigation, control panel keys 46 menus 54 numeric keypad 47 networking features 17 networks.
weight equivalence table 36 paper finish test 37 Paper handling menu factory defaults 51 settings 60 paper input trays. See trays paper input unit (PIU) diagrams and part numbers 302 reinstalling 143 removing 141 paper jams. See jams paper output accessories, removing 171 See also tray 1; tray 4; stacker; stapler/stacker paper output bins.
tray 4, removing 168 power-on sequence 82 PowerSave energy consumption 19 factory default settings 53 fan operation during 206 noise-level specifications 19 settings 47, 62 ppm (pages per minute) 16 preliminary operating checks, troubleshooting 202 preprinted media fuser modes 51 fusing compatibility test 38 specifications 33 prepunched media, fuser modes 51 pre-registration roller drive clutch (CL2) 101 pressure roller bias generation 88 cleaning 73 fuser wrapping jam detection operations 96 heating operat
repair process 24 repeating defects, troubleshooting 271, 273 repeating images, troubleshooting 272 repetitive defect ruler 273 replacement intervals print cartridges 76 printer maintenance kit 68 replacement parts ordering 24 removing and replacing 117 replacing parts 117 printer maintenance kit 68 resellers, authorized 25 Resets menu 62 resets, cold 243 residual jams, detection operations tray 1 103 tray 2 or 3 97 tray 4 105 resistivity test tools 39 resolution factory default 53 features 16 settings, cha
skin contact, toner 69 skip disk 243 SLEEP sequence of operations 82 small paper mode, settings 53, 62 troubleshooting 271 smears, troubleshooting 271 smoothness test, paper 37 smudges, horizontal 269 software HP LaserJet 9000 Series Printer CD-ROM 282 settings 48 Web sites 25 solenoids pickup and feed system 101 tray 1 102, 103 voltage 89 sound specifications 19 space requirements 29 spacing, factory defaults 52 spare parts, ordering 24 special media coated 34 embossed 34 envelope specifications 31 fuser l
paper path assembly, removing 180 paper stopper clips, removing 182 part number 281 power supply, removing 189 power-on sequence 106 removing 171 safety switch assembly, removing 192 service mode 249 space requirements 30 stapler, removing 187 stationary caster, removing 195 Start guide 282 static charge eliminating bias, operations 88 static eliminator image defects, troubleshooting 272 operations 94 static, precautions for 117 stationary casters (stacker and stapler/stacker), removing 195 stationary jams
trailing edge, detection operations tray 2 or 3 97 tray 4 105 transfer bias generation 88 transfer charging roller cleaning operations 88 image formation operations 93 operations 94 transfer guide assembly, removing 145 transfer process, image formation operations 94 transfer roller assembly, removing 136 cleaning 69 contamination, troubleshooting 268 diagrams and part numbers 304 image defects, troubleshooting 266, 270 included in printer maintenance kit 68 Transmit Once technology 16 transparencies detect
fuser modes 51, 61 tray settings, factory default 51 U Ultra Precise cartridges. See print cartridges unexpected size, error messages 232 universal serial bus (USB) communication operations 90 UNIX, remote firmware upgrades 64 Up arrow, control panel 46 upgrading firmware 64 usage page 261 USB communication operations 90 Use guide 282 user LED, stapler/stacker and stacker 252 wings, accumulator (stapler/stacker) 181 wire harnesses, replacing 117 wireless printing.
358 Index C8519-90912
copyright © 2001 Hewlett-Packard Company http://www.hp.
