LASER PRINTER ML-1600 Series ML-1610/XBH Basic Model : ML-1610 SERVICE LASER PRINTER Manual The keynote of Product - Speed : 17ppm (Ltr) / 16ppm(A4), 600dpi - Paper Path : MPF Type Cassette - Emulation : SPL (ML-1610 / ML-1615P) - Processor : 150MHz Jupiter4e CPU - Memory : ML-1610(SDRAM,2MB), ML-1615P(SDRAM,8MB) - MP Cassette : 150 pages / Face Down (50 pages) - Fuser Design : Lamp Type - I/O : ML-1610(USB1.1), ML-1615P (USB1.
Contents 1. Precautions 1.1 Safety Warning 1.2 Safety Caution 1.3 ESD Precautions 1-1 1-2 1-4 2. Product Specification 2.1 Product Overview 2.2 Specifications 2.3 Model Comparison Table 2-1 2-1 2-5 3. System Overview 3.1 3.2 3.3 3.4 System Outline H/W Structure and Descriptions S/W Structure and Descriptions Initial Product Installation 3-1 3-7 3-19 3-24 4. Alignment and Adjustments 4.1 4.2 4.3 4.4 4.5 4.6 4.
Continued 5. Disassembly and Reassembly 5.1 General Precautions on Disassembly 5.2 Disassembly and Reassembly 5-1 5-2 6. Troubleshooting 6.1 6.2 6.3 6.4 6.5 Checking Symptoms Bad discharge Malfunction Bad software environment Bad Image 6-1 6-4 6-8 6-13 6-17 7. Exploded Views & Parts List 7.1 Exploded Views and Parts List 7-1 8. Block diagram 8.1 System Block Diagram 8.2 System Timing Chart 8-1 8-2 9. Connection Diagram 9.1 Connection Diagram 9-1 10. Schematic Diagram 10.1 10.2 10.3 10.
Continued 11. Reference Information 11.1 11.2 11.3 11.4 Troubleshooting Tools Acronyms and Abbreviations Selecting printer locations Sample Tests Patterns 11-1 11-2 11-4 11-5 12. Circuit Description 12.
1 Precautions 1. Precautions The cautions below are items needed to keep in mind when maintaining and servicing. Please read carefully and keep the contents in mind to prevent accidents while servicing and to prevent the machine from getting damaged. 1.1 Safety Warning (1) Request service by qualified service person. Service for this machine must be performed by a Qualified service person. It is dangerous if unqualified service personnel or users try to fix the machine. (2) Do not rebuild.
Precautions 1.2 Safety Caution 1.2.1 Noxious Material Precaution The toner in a printer cartridge contains a chemical material, which may harm human body if it is swallowed. Please keep children out of reach of the toner cartridge. 1.2.2 Electric Shock or fire Precaution It is possible to get electric shock or burn by fire if you don't fallow the instructions of the manual. (1) Use exact voltage. Please use an exact voltage and wall socket. If not, a fire or an electric leakage can be caused.
Precautions 1.2.3 Handling Precautions If you ignore this information, you could harm machine and could be damaged. (1) Do not install it on different levels, or slanted floor. Please confirm whether it is balanced or not after installation. If it is unbalanced, an accident can be happened due to the machine falling over. (2) Be careful not to insert a finger or hair in the rotating unit.
Precautions 1.3 ESD Precautions Certain semiconductor devices can be easily damaged by static electricity. Such components are commonly called “Electrostatically Sensitive (ES) Devices”, or ESDs. Examples of typical ESDs are: integrated circuits, some field effect transistors, and semiconductor “chip” components. The techniques outlined below should be followed to help reduce the incidence of component damage caused by static electricity.
Product Specifications 2 2. Product Specifications 2.1 Product Overview Item Descriptions Basic Model ML-1610 Series Model ML-1615P Market of Sailes Persnal user Laser printer.(Low Price for small work Group.) Specification Remark 16ppm(Ltr. 17ppm), Jupiter 4e 150MHz, 2Mbytes SDRAM 1K(initial), 2K(sailes) USB 1.1 Model(Compatible with USB 2.0), IEEE 1284 Parallel(ML-1615P) 150pages feeding, 50pages Face Down 2.2 Specifications Product Specifications are subject to change without notice.
Product Specifications Item Periodic Replacing Parts Same with Machine Life Cassette Descriptions Pick Up Roller : 50,000 Pages Transfer Roller : 50,000 Pages Fuser Assembly : 50,000 Pages Toner Sensor No Toner Type Non-Magnetic Contact System Toner Initial 1,000 sheets@ISO 5% coverage Toner sale 2,000 sheets@ISO 5% coverage - Paper capacity : 150sheets - Paper weight : 60 ~ 163 g/ / 16 ~ 43 lbs 2.2.2 Controller Item Processor(CPU) Memory Descriptions Jupiter 4e 150MHz Standard/Max. : 2MB(Max.
Product Specifications 2.2.3 Electrical Specification Item Input Voltage Descriptions Nominal input voltage Power Consumption Remark 220~240 VAC Input voltage range 198~255 VAC Nominal frequency 50/60 MHz Frequency tolerance +3Hz Printing : 300W Avg(Max. 500W) Idling : 100W Avg or less Power Save : 10W Avg or less 2.2.4 Environmental Range Item Operating Storage Temperature 10~30 oC(50-90 oF) -20~40 oC (-4~104 oF) Humidity 20~80%RH 10~80%RH 2.2.
Product Specifications 2.2.6 Paper Handling Specifications Please refer to Paper Secifications on user Guide. 2.2.6.1 Input Paper Size Paper paper size Cassette A4 210 X 297 mm O Letter 216 X 279(8.5 X 11") O US Folio(Legal13") 216 X 330(8.5 X 13") O Legal(Legal14") 216 X 356(8.5 X14") O Executive 184 X 267((7.25 X10.5") O Statement 140 X 216(5.5 x8.5") ISO B5 176 X 250 O JIS B5 182 X257 O A5 148 X 210 O A6 105 X148 O No.10 Env. 105 X 241(4.15 X 9.5") Monarch Env.
Product Specifications 2.
Product Specifications AN3977 , THV(-) *. These model are as yet undeveloped.
System Overview 3 3. System Overview 3.
System Overview Unit Layout LSU Panel HVPS Motor SMPS Main PBA 3-2 Service Manual Samsung Electronics
System Overview 3.1.1 Feeding There are the C-path type, which loads papers, and the manual feeder, which supplies paper one by one.The cassette has the function pad which separates paper one by one, and it has the sensor function to check the existence of the loading paper. 1) Feeding Type : MPF Type 2) Feeding Standard : Center Loading 3) Feeding Qty : Cassette 150 sheets (75g/ , 20lb paper standard) 4) Manual 1 sheet (Paper, OHP, Envelope etc.
System Overview 1) Heat Lamp . Heat Lamp Terminal Shape : Terminal Single Type . Voltage 120 V : 115 + /- 5 % 220 V : 230 + /- 5 % . Capacity : 600 Watt + /- 30 W . Life : 3000 Hr 2) Thermostat . Thermostat Type : Non-Contact type THERMOSTAT . Control Temperature : 150 5 3) Thermistor . Thermistor Type : HF-R0060 (SEMITEC 364FL Type) . Temperature Resistance : 7 (180 ) .
System Overview 3.1.5 LSU (Laser Scanner Unit) The LSU unit is controlled by video controller. It scans the video data received from video controller with laser beam by using the rotation principle of the polygon mirror to create the latent image on the OPC drum. It is the core part of LBP. The OPC drum rotates as the same speed as the paper feeding speed.
System Overview 3.1.6 Toner Cartridge By using the electronic photo process, it creates a visual image. In the toner cartridge, the OPC unit and the developer unit are in a body.
System Overview 3.2 H/W Structure and Descriptions 3.2.1 H/W Overview ML-1610 is roughly made up Main Control part and SMPS/HVPS part. Main Controller uses Jupiter4E for its ASIC, which is on chip micro controller and developed for Low-end Laser Beam Printer. Jupter4E provides the integrated printing functions such as Printer video controller, Laser Scan Unit controller, PWM controller and Bi-polar Stepper Motor Controller and has USB interface and built-in Flash memory with 4Mbits capacity.
System Overview - Main Function Block: Completely Integrated System for Embedded Applications, 32 Bit Risc Architecture, Efficient and Powerful ARM9 CPU LSU Interface Module for Interfacing PVC with LSU 2 Channel General Purpose DMA Controller for High Speed I/O Dual Memory Bus Architecture - Operation Frequency : 150MHz - Operation Voltage : 3.3V - POWER ON RESET TIME : 6.6ms below 3.2.1.3 Flash Memory Store System Program and can be down load System Program through PC Interface - Capacity : 0.
System Overview 3.2.2 Main Board Main Board are composed of Engine and Controller on the one-Board. Main Board control to send Current Imagedml Video Data to LSU to print and have motor Driving and Circuit for the current driving and also include Paper Exit Sensor, Cover Open s/w, panel s/w. U1 (IC-VOLTAGE COMP) U3 (IC-CLOCK GENERATOR) 12.
System Overview U6(Jupiter 4E) - It is a main CPU and an Asic of Jupiter4E which has a CPU core CLK with over 150MHz and a System bus 45MHz. - It use 3.3V for operation voltage and I/O, It uses 80MHz for system bus CLK, Built in Flash Memory. SDRAM - Main memory. SDCLK is 80Mhz. A3977 - It is an Main motor driver IC and controls the motion of main motor. Regulator - It Supplies the core voltage to CPU by converting 3.3V to 1.3V. EEPROM(U8 : 93C66) - It is an EEPROM with 12C method.
System Overview 3.2.3 Asic(SPGPm) Specification 3.2.3.1 Introduction Jupiter4E is One-Chip micro-Controller for Low cust Laser beam Printer. 1.
System Overview 8. Interrupt Controller (INTC) - FIQ or IRQ mode operation selectable - Programmable Interrupt Enable/Disable 9. USB interface - Version 1.1 - Four 128x8 FIFOs for Data transmission. - Interrupt based input / output interface, no DMA based interface support - USB wrapper for AHB interface - AHB Bus interface 10.
System Overview 3.2.3.
System Overview 3.2.4 Sensor Controller 3.2.4.1 Paper Feeding/Width When a paper passes an actuator of a feed sensor unit after feeding a paper into a set,it detects a signal of the photo interrupter and informs the paper feeding status to CPU. After sensing the signal and certain time later, it strews an image data.(Related in Paper Front Edge Adjustment) If it could not detect the feed sensor within 1 second after feeding a paper, a paper jam0 (CPU#_) occurs.
System Overview 3.2.5 SMPS board (Switching Module Power Supply) The SMPS supplies DC Power to the System. It takes 110V/220V and outputs the +5V, +24V to supply the power to the main board and other board. It is consisted of the AMPS part, which supplies the DC power for driving the system, and the AC heater control part, which supplies the power to fuser. SMPS has two output channels.
System Overview 1) SMPS Specification - AC Input Input Rated Voltage : AC 220V ~ 240V AC 120V / AC 220V(EXP version) Input Voltage fluctuating range : AC 90V ~ 135V / AC 180V ~ 270V(EXP version) Rated Frequency : 50/60 Hz Frequency Fluctuating range : 47 ~ 63 Hz Input Current : Under 4.0Arms / 2.5Arms (But, the status when lamp is off or rated voltage is inputted/outputted ) - Rated Output Power No Items CH1 1 2 Channel Connector pin 3 Rated Output 4 5 6 7 8 9 Max.
System Overview - Environment Condition . Operating temperature range : 0 40 . Maintaining temperature range : -20 40 . Preserving Humidity Condition : 10% ~ 90% RH . Operating atmospheric pressure range : 1atm - EMI Requirement : CISPR ,FCC, CE, MIC, - Safty Requrement : IEC950 UL1950, CSA950, C-UL,Semko, EK,CB, CCC(CCIB),GOST, EPA, Power Save 3.2.
System Overview - Output Voltage Falling Time : 50 ms Max - Output Loading range : 10Mߟ ~ 1000 - Output Control Signal (BIAS-PWM) : the CPU output is HV output when PWM is low. 4) Supply - Output Voltage : -550 V 8.
System Overview 3.2.7 FUSER AC POWER CONTROL Fuser(HEAT LAMP) gets heat from AC power. The AV power controls the switch with the Triac, a semiconductor switch. The 'ON/OFF control' is operated when the gate of the Triac is turned on/off by Phototriac (insulting part). In other words, the AC control part is passive circuit, so it turns the heater on/off with taking signal from engine control part. When the 'HEATER ON' signal is turned on at engine, the LED of PC1 (Photo Triac) takes the voltage and flashes.
System Overview 3.3 S/W Structure and Descriptions The purpose of this document is to describe the design specification of the Engine Control F/W for the ML-1610. 3.3.1 Introduction This Engine Control Firmware is a program that controls LBP Engine of the ML-1610. This firmware is executed every 10msec as an interrupt routine of the main system. At stand-by state, this firmware monitors the enable print command from the main system.
System Overview - Architecture of Engine Control F/W Main F/W of the printer controller Engine F/W Power On Initial Device Units Interface Control Module Fixing Unit LSU HVPS Engine Main Control Module Fan Unit Motors Sensing & Unit Control Module Solenold & Clutch Hardware Devices & Mechanical Device Service Manual Samsung Electronics 3-21
System Overview 3.3.3 F/W Architecture of Engine Control Firmware - The Engine Control Module is executed every 10msec as interrupt job of main system. There are three control modules, i.e., Engine Main Control Module, Engine Interface Module and Sensing & Unit Control Module. - Probably from usual state it will be able to rehabilitated a prior to entry error state in error condition it is to confirm.
System Overview - F/W Architecture START Global Timer Increment Get A DC Value (Tempe rature, ..
System Overview 3.3.6 LED Behaviors Ready LED Error LED Toner Save ON SLOW BLINK OFF OFF N/A N/A FAST BLINK OFF N/A N/D OFF BLINK N/A N/A N/D ON BLINK N/A N/A N/D N/A BLINK ON OFF LED Status Ready to receive the data. Receiving the data from the host. In case that toner save mode is ON. Printing the page. In case that toner save mode is ON. Recovery mode Out of paper Service error (LSU or Fuser error) Toner save mode is ON Toner save mode is OFF 3.3.
System Overview 3.4 Initial Product Installation 3.4.1 Accessory List Remove the printer and all accessories from the packing carton. Make sure that the printer has been packed with the following items: 3.4.2 Installing the Toner Cartridge 1. Grasp the front cover and pull it toward you to open.
System Overview 2. Remove the toner cartridge from its bag and remove the paper covering the cartridge. 3. Gently shake the cartridge from side to side to distribute the toner evenly inside the cartridge. 4. Locate the cartridge slots inside the printer, one on each side.
System Overview 5. Unfold the toner cartridge handle and grasp it. Insert the cartridge in the printer until it snaps into place. 6. Close the front cover. Make sure that the cover is securely closed. If the cover is not firmly closed, printing errors may occur when you print.
System Overview 3.4.3 Loading Paper You can load approximately 150 sheets of paper in the tray. 1. Grasp the paper input tray and pull it toward you to open. Pinch the rear guide and pull it out to extend the tray. 2. Prepare a stack of paper for loading by flexing or fanning them back and forth. Straighten the edges on a level surface. 3. Load paper with the print side facing up. Make sure that all four corners are flat in the tray.
System Overview 4. Pay attention not to overload paper. Paper overloading may cause paper jams. 5. If necessary, pinch the rear guide to adjust for the paper length and pinch the side guide and slide it to the left flush against the paper. 3.4.4 Connecting a Printer Cable To print from your computer, you need to connect your printer to your computer with a Universal Serial Bus (USB) cable. 1. Make sure that both the printer and the computer are turned off. 2.
System Overview 3.4.5 Turning the Printer on 1. To print from your computer, you need to connect your printer to your computer with a Universal Serial Bus (USB) cable. 2. Plug the other end into a properly grounded AC outlet and turn on the printer using the power switch. 3.4.6 Printing a Demo Page Print a demo page to make sure that the printer is operating correctly. 1. Press and hold down the Cancel button on the control panel for about 2 seconds to print a demo page. 2.
System Overview 3.4.7 Installing Printer Software The supplied CD-ROM contains Windows printing software, Linux printing software, on-line User’s Guide and Acrobat Reader to view the User’s Guide. 1. If you are printing from Windows - You can install the following printer software using the CD-ROM. • Printer driver for Windows. Use this driver to take full - advantage of your printer’s features. For details, see Software User Guide. • Status Monitor allows you to see the printing status of the printer.
Alignment and Adjustments 4 4. Alignment and Adjustments 4.1 Sample Pattern This product has the several sample patterns for maintenance. With the sample patterns, check the existence of the abnormality. The patterns help to regularly maintain the product. 4.1.1 Printing a Demo Page Print a demo page or a configuration sheet to make sure that the printer is operating correctly. 1) Hold down the Cancel button for about 2 seconds to print a demo page.
Alignment and Adjustments 4.2 Control Panel 4.2.1 OP Panel 4.2.2 On Line/Error and Toner Save LEDs LED Description If the On Line/Error lights green, the printer is ready to print. If the On Line/Error lights red, the printer is experiencing an error, such as jammed paper, no paper, the open cover or the empty toner cartridge. If you press the Cancel button while the printer is receiving data, the On Line/Error LED blinks red to cancel printing.
Alignment and Adjustments 4.2.3 Cancel button LED Description Printing demo page In Ready mode, press and hold this button for about 2 seconds until all LEDs blink slowly, and release. Manual feeding Press this button each time you load a sheet of paper in the tray, when you select Manual Feed for Source from your software application. Canceling print job Press this button during printing.
Alignment and Adjustments 4.3 Consumables and Replacement Parts The cycle period outlined below is a general guideline for maintenance. The example list is for an average usage of 50 transmitted and received documents per day. Environmental conditions and actual use will vary these factors. The cycle period given below is for reference only.
Alignment and Adjustments 4.5 Periodic Defective Image If the delinquent image regularly occurs in the printed-paper, it is due to delinquent or damaged roller. Refer to the table in below and check the condition of the roller. No Roller Defective image Typical defect 1 OPC Drum 75.5mm white spot on black image or black spot 2 Charge Roller 37.7mm black spot 3 Supply Roller 47.5mm light or dark horizontal image band 4 Developing Roller 35.
Alignment and Adjustments 4.6 How to use DCU 4.6.1 DCU Setup You can examine the malfunction of the printer. To perform DCU, open the front discharge cover and leave the connect the harness wire(10 pin/4 pin) to the CN1(ML-1610) of the Main control board.
Alignment and Adjustments 4.6.2 Code Connect DCU to the printer and turn the power on. It show 7 Segment FND on the panel and each code tells the function of the printer. 1) Normal Code While printing or warming up, it indicate the position of the paper Code State 61 00~05 Warm up Ready(kind of paper) 20, 21, 22 Print Start 30 40 50 69 Feed Sensor On Feed Sensor off Paper Out Sleep Mode Description The printer is on, the cover is open or close.
Alignment and Adjustments 4.6.3 Self Diagnostic Mode If Error code occurs due to malfunction of the printer, perform Self Diagnostic Mode to solve the problem. The printer works only in the self-test mode to solve the malfunction problem. To enter the self-test mode, turn the power on pressing the buttons of [Down], [Shift] and [Stop] at the same time. Release the button within 2 or 3 seconds if 78 shows in the DCU.
Alignment and Adjustments Code Description 07 Paper Empty Sensor Test : If activate the Actuator of the PEMPTY Sensor, the left and right of the three LEDs are on. Paper Empty Sensor ON/OFF 1st LED ON/OFF 08 Feed & Exit Sensor Test Test the Feed sensor and Discharge sensor in the same way as '07'.
Alignment and Adjustments No.
Alignment and Adjustments 4.7 Paper Path BIN PATH ❶ SMPS ❷ Fuser ❸ Toner Cartridge ❹ LSU ❺ Exit Roller ❻ OPC ❼ Pick-Up Roller ❽ KNOCK-UP PLATE ❾ KNOCK-UP PLATE DOWN ❿ ASS’Y HOLDER PAD Feed Sensor MAIN PBA SMPS HVPS 1) After taking order, the printer feeds the printing paper from the cassette or manual feeder. 2) The fad paper passes the paper feeding sensor.
Alignment and Adjustments 4.7.1 Clearing Paper Jams Occasionally, paper can be jammed during a print job. Some of causes include: • The tray is overfilled. • The front cover has been opened during a print job. • Paper that does not meet paper specifications has been used. • Paper that is outside of the supported size range has been If a paper jam occurs, the On Line/Error LED on the control panel lights red. Find and remove the jammed paper. If it is invisible, look inside the printer. 4.7.
Alignment and Adjustments 3. Loosen the paper if it is caught in the heat rollers. Then pull the paper gently out. 4. Close the inner cover and the top cover. 5. Open and close the front cover. Printing can be resumed.
Alignment and Adjustments 4.7.3 In the Paper Feed Area 1. Remove any missfeed paper by pulling it out by the visible edge from the tray. Make sure that all of the paper is properly aligned in the tray. 2. Open and close the front cover. Printing can be resumed. 4.7.4 Around the Toner Cartridge 1. Open the front cover.
Alignment and Adjustments 2. Pull the toner cartridge out and remove it from the printer. 3. Gently pull the paper toward you. 4. Check that there is no other paper in the printer. 5. Reinstall the toner cartridge, and then close the cover. Printing can be resumed.
Alignment and Adjustments 4.7.5 Tips for Avoiding Paper Jams By selecting the correct paper types, most paper jams can be avoided. • Ensure that the adjustable guides are positioned correctly. • Do not overload the tray. • Do not remove the paper from the tray while printing. • Flex, fan and straighten the paper before loading. • Do not use creased, damp or highly curled paper. • Do not mix paper types in the input tray. • Use only recommended print media.
5 Disassembly and Reassembly 5. Disassembly and Reassembly 5.1 General Precautions on Disassembly When you disassemble and reassemble components, you must use extreme caution. The close proximity of cables to moving parts makes proper routing a must. If components are removed, any cables disturbed by the procedure must be restored as close as possible to their original positions. Before removing any component from the machine, note the cable routing that will be affected.
Disassembly and Reassembly 5.2 Disassembly and Reassembly 5.2.1 Front Cover 1.Open the front cover.(The front cover and the cassette tray are assembled with the same assembly.) 2.Separate the cover from the lock of the frame by pulling the right bottom of the cover toward the arrow direction. Pull out the front cover to the left as shown as below. 1 2 Cassette Tray Front Cover 5.2.2 Cassette Tray 1.For separating only cassette tray,open the tray. 2.
Disassembly and Reassembly 5.2.3 SMPS Cover 1.Release two screws. (Screw x2:Silver_M3,6003-000196) 2.Separate the lock by holding the left side of the cover and pulling it toward the arrow direction. Remove it with carefulness that the power switch is not hooked on SMPS cover as shown as below. 1 SMPS Cover 2 5.2.4 Main Cover 1.Before Disassembling. -Separate the font cover.(Refer to 5.2) -Separate the SMPS cover.(Refer to 5.3) 2.Release 4 screws as shown as below.
Disassembly and Reassembly 3.Hold the both ends of the cover and pull it up bit by bit toward the arrow direction as shown as below. 4.Separate it by holding the both sides of the main cover and carefully lifting it up. Main Cover 5.If necessary,remove the jam cover.Open the cover, take out the hook on the right toward the arrow direction, and then take out the jam cover to the right side.
Disassembly and Reassembly 5.2.5 Top Cover 1.Before Disassembling. -Separate the font cover.(Refer to 5.2) -Separate the SMPS cover.(Refer to 5.3) -Separate the Main cover.(Refer to 5.4) 2.For separating the LED lens and the On-Line key, release the 5 screws connected to the main cover, and then 4 locks on the front and rear of the top cover by using a screw driver.Remove the top cover from the main cover. (Screw x 5:Silver_M3,6003-000196) Top Cover Main Cover 2 1 3.
Disassembly and Reassembly 5.2.6 HVPS 1.Before Disassembling. -Separate the font cover.(Refer to 5.2) -Separate the SMPS cover.(Refer to 5.3) -Separate the Main cover.(Refer to 5.4) 2.Remove the sheet by releasing the 5 screws which connects the HVPS and the Sheet. (Screw x 3:Gold_M3,6003-000269) HVPS Sheet 3.Separate the HVPS with HVPS ground from the frame by releasing the remaining 3 screws. (Screw x 3:Gold_M3,6003-000269) 4.Remove the connector from the separated HVPS.
Disassembly and Reassembly 5.2.7 RX Drive 1.Before Disassembling -Separate the font cover.(Refer to 5.2) -Separate the SMPS cover.(Refer to 5.3) -Separate the Main cover.(Refer to 5.4) 2.Release 2 screws (Screw x 2:Silver_M3,6001000130)connected to the engine shield and 6 screws (Screw x 6:Gold_M3,6003-000296)connected to the frame. Separate the RX drive by pulling it out toward the arrow direction. 3.Remove the connector from the separated RX drive. 4.
Disassembly and Reassembly 5.When separating the motor,remove the motor bracket first by removing 4 screws as shown as below, and then remove the 2 screws from the motor bracket. Gear Bracket RX Motor Motor Bracket 5.2.8 Fuser 1.Before Disassembling -Separate the font cover.(Refer to 5.2) -Separate the SMPS cover.(Refer to 5.3) -Separate the Main cover.(Refer to 5.4) 2.Separate 2 connectors from the SMPS and the Main PBA as shown as below.
Disassembly and Reassembly 3.Separate the fuser by unscrewing 4 screws on the frame. (Screw x 4:Gold_M3,6003-000269) 4.After removing the Lamp Cover L/R, separate the Fuser Dummy cover. Lamp Cover_R Fuser Fuser Dummy Cover Lamp Cover_L 5.Separate the Exit roller F/Down and the exit gear (DRV17)by turning the left/right holder connected to the exit roller F/Down to the arrow direction.At this time,roller_main,roller_FR, F/Down Holder,and spring are separated with theses. Exit Gear 6.
Disassembly and Reassembly 7.After pulling out the thermostat as shown as below, remove the CBF harness from its left/right side. 8.Release the screw as shown as below, remove the harness from the cover, and then pull out the thermistor. (Screw x 1:Black_M3,6003-000196) Thermistor Thermostat 9.After separating the CBF harness connected to the left/right side of the halogen lamp, release 2 screws from the halogen lamp. (Screw x 2:Black_M3,6003-000196) 10.
Disassembly and Reassembly 11.Remove the halogen lamp from the heat roller by pulling it out to the arrow direction. Heat Roller Halogen Lamp 5.2.9 Engine Shield (Including Main PBA and SMPS) 1.Before Disassembling -Separate the font cover.(Refer to 5.2) -Separate the SMPS cover.(Refer to 5.3) -Separate the Main cover.(Refer to 5.4) 2.Disconnect all connectors except the connector which connects the SMPS to the Main PBA.
Disassembly and Reassembly 3.Release 6 screws as shown as below, separate the harnesses from the shield,and then separate the engine shield with carefulness of the actuator feed sensor lever. (Screw x 6:Silver_M3,6003-000196) Engine Shield (W/Main PBA, SMPS) 4.For removing only SMPS, perform the follows in order : separate the SMPS cover (Refer to the 5.3), release 5 screws, separate the fuser connector and the main PBA connector, and then take out the SMPS.
Disassembly and Reassembly 5.2.10 LSU 1.Before Disassembling -Separate the font cover.(Refer to 5.2) -Separate the SMPS cover.(Refer to 5.3) -Separate the Main cover.(Refer to 5.4) 2.Release 3 screws as shown as below, lift up the LSU, and then disconnect 2 connectors from the separated LSU. (Screw x 2:Silver_M3,6003-000196) LSU 5.2.11 Paper Path Frame 1.Before Disassembling -Separate the font cover.(Refer to 5.2) -Separate the SMPS cover.(Refer to 5.3) -Separate the Main cover.(Refer to 5.
Disassembly and Reassembly 3.After releasing the 2 hooks from the right side of the frame,take out the transfer roller. (Screw x 2:Silver-M3,6003-000196) 4.Remove the solenoid-MP by releasing the screw from the left side of the frame. (Screw x 1:Gold_M3,6003-000301) 1 2 Bush Solenoid-MP Transfer Roller Bush(L) 5.2.12 Pick_Up Roller 1.For separating the pick-up roller sponge, open the front cover, and then take out the toner cartridge. 2.
6 Troubleshooting 6. Troubleshooting 6.1 Checking Symptoms Before attempting to repair the printer first obtain a detailed description of the problem from the customer. Power On On-Line LED ON? - No Power - Power Module error - Main PBA On-Line LED Green OK? Indicate "Lamp toggle" Refer to "Chapter 4.
Troubleshooting 6.1.1 Basic Check List 1. Check the Power. • Does "Warming Up" appear on the display? --> If not check power cable, switch or SMPS. --> Does the wall socket work? • Do the Motors or other components initialize (listen for main motor, fan and LSU sounds)? --> If not or there are none of the normal startup sounds check cable, switch or SMPS. --> Does the wall socket work? 2. Check the LED of Panel. • Is there On-Line LED ON? --> If not check power cable, switch SMPS or Main board.
Troubleshooting 6.1.2 Initial Inspection 1. Check Power part 1. The printer does not work no matter how long you wait. A. Is the Power Switch (printer and wall socket) turned on ? B. Is the Power Cord connected to the printer correctly ? C. Is the Power cord connected to the wall socket correctly ? D. Is wall socket working ? E. Is the unit rated at the same voltage as the supply ? 2. Does the Fan work when power is turned on? A. Check the connectors on the SMPS. B. Check the fuses in the SMPS.(F1) 2.
Troubleshooting 6.2 Bad discharge 6.2.1 Wrong Print Position • Description Printing begins at wrong position on the paper. Check and Cause Wrong sense time caused by defective feed sensor actuator. Solution Replace the defective actuator 6.2.2 JAM 0 • Description 1. Paper is not exited from the cassette. 2. Jam-0 occurs if the paper feeds into the printer. BIN PATH Check and Cause Solution 1. Check the Solenoid by using DCU diagnostic mode 06. 1. Replace the solenoid. 2.
Troubleshooting 6.2.3 JAM 1 • Description 1. Recording paper is jammed in front of or inside the fuser. 2. Recording paper is stuck in the discharge roller and in the fuser just after passing through the Actuator-Feed. BIN PATH Check and Cause Solution 1. If the recording paper is jammed in front of or inside the fuser. (Perform DCU diagnostic code 08) 1. Replace the SMPS. 2.
Troubleshooting 6.2.5 Multi-Feeding • Description Multiple sheets of paper are fed at once. Check and Cause Solution 1. Solenoid malfunction(the solenoid does not work properly): Perform DCU Diagnostic Code 06. 1. Replace the solenoid if necessary. 2. Pad-Friction is contaminated with foreign matter.(oil...) 2. Clean the pad friction with soft clothe dampened with IPA(Isopropyl Alcohol). 3. The face of paper is blended. 3. Use the smooth paper. 6.2.
Troubleshooting 6.2.7 Paper rolled in the Toner Cartridge (OPC Drum) • Description Paper is rolled up in the OPC. Check and Cause Solution 1. Paper is too much thin. 1. Recommend to use normal paper. 2. The face of paper is curled. 2. How to remove the rolled in the OPC Drum. • Remove the paper while turning the OPC Drum against the ongoing direction.
Troubleshooting 6.3 Malfunction 6.3.1 All LEDs blinking (Fuser Error) • Description 1. All the lamps on the operator panel blink. 2. Gear of the fuser does not work and breaks away melt away. When printing, motor breaks away from its place due to defective fuser gear. Check and Cause Solution 1. Check if the thermostat, AC wire and Heat Lamp is open. 1. If the thermostat is open replace the fuser and check following items. 2. Check if the thermistor sensor is in place. 2.
Troubleshooting 6.3.3 Not function of the gear of the fuser due to melting away • Description The motor breaks away from its place due to gear melting away. Check and Cause DCU Mode : Check if the Error States '60' '62' '68' occur. Check the operation of Fuser Erasing Lamp On/Off with the Error Code Check -10-. Solution 1. Replace the Fuser. 2. Replace the Main Control board. 6.3.4 Paper Empty • Description The paper lamp on the operator panel is on even when paper is loaded in the cassette.
Troubleshooting 6.3.6 Cover Open • Description The ERROR lamp is on even when the print cover is closed. Check and Cause Solution 1. The Hook Lever in the top cover may be defective. 1. Replace the hook lever, if defective. 2. Check the connector (Engine B’d↔HVPS) and circuit of the cover switch department in the Main Control board. Perform DCU mode : If Error state '64' occurs, Check the related codes of the Cover Open Error. 2. Check the insertion of the Cover Open S/W Connect. 3.
Troubleshooting 6.3.8 Defective motor operation • Description Main motor is not driving when printing, and paper does not feed into the printer, resulting 'Jam 0'. Check and Cause Solution 1. Motor harness or sub PCB may be defective. 1. Check the motor harness, replace it, if defective. 2. Perform DCU diagnostic code 00 and Check the motor operation. 2. Replace the SMPS, if necessary. 6.3.9 No Power • Description When system power is turned on, all lamps on the operator panel do not come on.
Troubleshooting 6.3.10 Vertical Line Getting Curved • Description When printing, vertical line gets curved. Check and Cause 1. If the supply of +24v is unstable in the Main Control board linking with LSU, check drive by DCU Mode : LSU Check -05- LSU Motor on. Solution 1. Replace LSU. 2. Replace the Main Control board.
Troubleshooting 6.4 Bad Software Environment 6.4.1 The printer is not working (1) • Description While Power turned on, the printer is not working in the printing mode. Check and Cause Solution 1. Run Self-Test Mode : Turn the power on while pressing the test printing button for 2 or 3 seconds before printing works. 1.Check the power of the printer and perform the SelfTest. If the test printing works, that means no problems in the printer itself.
Troubleshooting 6.4.2 The printer is not working (2) • Description After receiving the printing order, no response at all or the low speed of printing occurs due to wrong setup of the environment rather than malfunction of the printer itself. Check and Cause Solution 1. Secure more space of the hard disk. 1. Not working with the message 'insufficient printer memory' means hard disk space problem rather than the RAM problem. In this case, provide more space for the hard disk.
Troubleshooting 6.4.3 Abnormal Printing • Description The printing is not working properly even when the cable has no problem. (even after the cable is replaced) If the printer won't work at all or the strange fonts are repeated, the printer driver may be defective or wrong setup in the CMOS Setup. Check and Cause Solution 1. Set up the parallel port in the CMOS SETUP. 1. Select SPP(Normal) or ECP LPT Port the among ECP, EPP or SPP in the CMOS Setup. 2. Printer Driver Error. 2.
Troubleshooting 6.4.4 SPOOL Error • Description To spool which stands for "simultaneous peripheral operations online" a computer document or task list (or "job") is to read it in and store it, usually on a hard disk or larger storage medium so that it can be printed or otherwise processed at a more convenient time (for example, when a printer is finished printing its current document). Check and Cause Solution 1. Insufficient space of the hard disk in the directory assigned for the basic spool. 1.
Troubleshooting 6.5 Bad image 6.5.1 Vertical Black Line and Band • Description 1. Straight thin black vertical line occurs in the printing. 2. Dark black vertical band occur in the printing. Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Check and Cause Solution 1. Damaged develop roller in the Developer. Deformed Doctor-blade or cleaningblade. 1. If causes 1 and 2 occur in the developer cartridge, replace the developer and try to print out. 2.
Troubleshooting 6.5.3 Horizontal Black Band • Description Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer 1. Dark or blurry horizontal stripes occur in the printing periodically. (They may not occur periodically.) Check and Cause Solution 1. Bad contacts of the voltage terminals to developer. 1. Clean each voltage terminal of the Charge, Supply, Develop and Transfer roller. (remove the toner particles and paper particles) 2. The rollers of developer may be stained.
Troubleshooting 6.5.5 Light Image • Description The printed image is light, with no ghost. Check and Cause Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Solution 1. Develop roller is stained when the toner of developer cartridge is almost consumed. 1. Check if the Toner Save mode is off. 2. Ambient temperature is below than 10°C. 2. Replace the developer cartridge and try to print out. 3.
Troubleshooting 6.5.7 Uneven Density • Description Print density is uneven between left and right. Check and Cause Solution 1. The pressure force on the left and right springs of the transfer roller is not even, the springs are damaged, the transfer roller is improperly installed, or the transfer roller bushing or holder is damaged. 1. Replace both the left and right Spring Holder. 2. The toner level is not even on the developer roller due to the bad blade. 2.
Troubleshooting 6.5.9 Ghost (1) • Description 75.5mm Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Ghost occurs at 75.5 mm intervals of the OPC drum in the whole printing. Check and Cause Solution 1. Bad contacts caused by contamination from toner particles between high voltage terminal in the main body and the electrode of the Developer. 1. Clean the terminals when contaminated by toner particles. 2.
Troubleshooting 6.5.11 Ghost (3) • Description Check and Cause 47.5mm Digital Digital Printer Printer Digital Digital Printer Printer White ghost occurs in the black image printing at 47.5mm intervals. Digital Digital Printer Printer Solution 1. The life of the developer may be expired. 1. Occur in the developer cartridge, replace the developer and try to print out. 2. The abnormal voltage and bad contact of the terminal of the supply roller 2.
Troubleshooting 6.5.14 Stains on Back of Page • Description The back of the page is stained at 47 mm intervals. Check and Cause Digital Digital Pri Digital Printer Digital Printer Digital Printer Solution 1. Transfer roller is contaminated. 1. Perform the OPC Cleaning Mode Print 2 or 3 times. Run Self-Test to remove the contamination of the transfer roller. 2. Pressure roller is contaminated. 2. Replace the transfer roller if contaminated severely. 3.
7 Exploded Views & Parts List 7. Exploded Views and Parts List (ML-1610/XBH) Contents 7.1 Main Assembly p.7-2 7.2 Frame Assembly p.7-4 7.3 Fuser Unit p.7-6 7.4 Paper Path Assembly p.7-8 Part Number & Description format. Part numbers and descriptions are defined according to a company standard. The information below will help you to understand the part number format and assist when ordering spare parts. There are two types of Part number format.
Exploded Views & Parts List 7.
Exploded Views & Parts List Main Assembly Parts List SA : Service Available O : Service available X : Service not available No. Location SEC.Code 7.1-0 7.1-1 7.1-2 7.1-2-1 7.1-2-2 7.1-2-3 7.1-2-4 7.1-2-5 7.1-2-6 7.1-2-7 7.1-2-8 7.1-3 7.1-3-1 7.1-3-2 7.1-3-3 7.1-3-4 7.1-4 7.1-5 7.1-6 7.
Exploded Views & Parts List 7.
Exploded Views & Parts List Frame Assembly Parts List SA : Service Available O : Service available X : Service not available No. Location SEC.Code 7.2-0 7.2-1 7.2-2 7.2-2-1 7.2-2-2 7.2-2-3 7.2-2-4 7.2-3 7.2-4 7.2-5 7.2-5-1 7.2-5-2 7.2-5-3 7.2-5-4 7.2-5-5 7.2-6 7.2-7 7.2-8 7.2-9 7.2-10 7.2-11 7.2-12 7.2-13 7.2-14 7.2-15 7.2-16 7.2-17 7.2-18 7.2-19 7.
Exploded Views & Parts List 7.
Exploded Views & Parts List Fuser Unit Parts List SA : Service Available O : Service available X : Service not available No. Location SEC.Code 7.3-0 F4038 JC96-03401A 7.3-1 7.3-2 7.3-3 7.3-4 7.3-5 7.3-6 7.3-7 7.3-8 7.3-9 7.3-10 7.3-11 7.3-12 7.3-13 7.3-14 F2122 Z2149 H4027 E4038 H4026 D4085 P6004 K3960 P6014 H2010 F4094 K2879 K2880 K2297 7.3-15 7.3-16 7.3-17 7.3-18 7.3-19 7.3-20 7.3-21 7.3-22 7.3-23 7.3-24 7.3-25 7.3-26 7.3-27 7.3-28 7.3-29 7.3-30 7.3-31 7.3-32 7.3-33 7.
Exploded Views & Parts List 7.
Exploded Views & Parts List Paper path Unit Parts List SA : Service Available O : Service available X : Service not available No. Location SEC.Code 7.4-0 7.4-1 7.4-2 7.4-3 7.4-4 7.4-5 7.4-6 7.4-7 7.4-8 7.4-9 7.4-9-1 7.4-9-2 7.4-9-3 7.4-10 7.4-11 7.4-11-1 7.4-11-2 7.4-11-3 7.4-12 7.4-13 7.4-14 7.4-15 7.4-16 7.4-17 7.4-18 7.4-19 7.4-20 7.4-21 7.4-22 7.4-23 7.4-24 7.4-25 7.
8 Block diagram 8. Block Diagram 8.
Block diagram 8.
Connection Diagram 9 9. Connection Diagram 110V for USA 240V for EU FUSER LSU MAIN MOTOR 1.HOT 2.Neutral 1 CON1 AC I N-L ET & POWER SWITCH AC wire 1.OUT1A 2.OUT1B 3.OUT2A 4.OUT2B 1 1.nHSYNC 2.+5V 3.DGND 4.DAC_OUT 5.VDO 6.L SU_READ 1.L SU_CL K 2.nL READY 3.nPMOTOR 4.DGND 5.+24VS2 1 1.Thermistor 1 2.Thermistor 2 1 CN11 1 CN12 MOTOR LD LSU CN8 LSU Motor FAN USB THERM 1 2 3 4 SMPS 5 CN7 6 7 8 9 Exit SENSOR PTL USB 1.1 MAIN B’d 1.+ 24VS2 2.+ 24V 3.+ 24VS1 4.+ 24VS1 5.+ 5V 6.DGND 7.
10 Schematic Diagram 10. Schematic Diagrams 10.1 Main Board(1/4) 10-1 Service Manual This Document can not be used without Samsung’s authorization.
Schematic Diagram Main Board(2/4) 10-2 Service Manual This Document can not be used without Samsung’s authorization.
Schematic Diagram Main Board(3/4) 10-3 Service Manual This Document can not be used without Samsung’s authorization.
Schematic Diagram Main Board(4/4) 10-4 Service Manual This Document can not be used without Samsung’s authorization.
Schematic Diagram) 10-2 Connector Circuit Diagram 10-5 Service Manual Samsung Electronics
Schematic Diagram 10-3 SMPS Circuit Diagram 10-6 Service Manual This Document can not be used without Samsung’s authorization.
Schematic Diagram 10-4 HVPS Circuit Diagram(1/3) 10-7 Service Manual This Document can not be used without Samsung’s authorization.
Schematic Diagram HVPS Circuit Diagram(2/3) 10-8 Service Manual This Document can not be used without Samsung’s authorization.
Schematic Diagram 10-4 HVPS Circuit Diagram(3/3) 10-9 Service Manual This Document can not be used without Samsung’s authorization.
Reference Information 11 11. Reference Information This chapter describes the reference information for applying this training manual, and it is consist-ed of the tool list, the abbreviation table, the outline of model, and so on. 11.1 Troubleshooting Tool The following tools are recommended safe and easy troubleshooting as described in this service manual. • DVM(Digital Volt Meter) Standard : Indicates more than 3 digits. • Driver Standard : "-" type, "+" type (M3 long, M3 short, M2 long, M2 short).
Reference Information 11.2 Acronyms and Abbreviations(1) The table below explains the abbreviations and acronyms used in this service manual. Where abbreviations or acronyms are used in the text please refer to this table.
Reference Information Acronyms and Abbreviations(2) Abbreviations Explanation IEEE Institute of Electrical and Electronics Engineers.
Reference Information 11.3 Selecting printer locations • Leave enough room to open the printer trays, covers, and allow for proper ventilation.
Reference Information 11.4 Sample Tests Patterns The sample patterns shown below are the standard test patterns used in the factory. The life of the toner cartridge, developer cartridge and printing speed are measured with the pattern shown below (5%). The A4 ISO 19752 standard pattern samples are reproduced reduced to 70% of the actual A4 size.
12 Circuit Description 12. Circuit Description 12.1 Engine Controller The engine controller module consists of a motor controller, a PWM controller, a LSU I/F controller, and an ADC I/F controller. 12.1.1 Heater Control ENGINE CONTROL PART AC CONTROL PART PC1 H N AC VOLTAGE 4 FUSER 1 CHOKE 2 R22 180 FUSIBLE Vcc R3 IC1 LM393D D3 914T1 2 TR2 KSC 1008-Y C B R7 1K 1 6 R6 5.6K TRIAC E R24 120 3 Vcc Vcc R21 1.5K 1 D1 914T1 2 R1 R5 5.
Circuit Description 12-2 Service Manual Samsung Electronics
Circuit Description Explanation about the condition of Normal Operation If the fuser (P3.7) port becomes high, the Q6 is activated. A heat lamp starts operating by the activity. As the temperature of the heat lamp is increased, the resistance value of the thermister is decreased. Therefore, the electric potential of the circled A becomes low. On/Off operation of the Q6 is only controlled by the fuser (P3.
Circuit Description 12.1.3 Motor Driver A motor drive circuit is decided when selecting a driver IC. (Supplied by vendor) ML1610 uses the motor driver IC of AN44060. However, the sensing resistance Rs value and the Vreference resistance value are variable according to the motor drive current value. 12.1.4 LSU Controller The laser scanning unit controller (LSUC) of Jupiter4E is a block for interface between PVC block and LSU.
Circuit Description LSUC DigiFilter nLREADY nLREADY_FO DigiFilter nHSYNC nHSYNC_FO ENGIN E nLREADYFlag flagClear lsu Con lsuControl[8:0] ls uSfr windowOnTime[20:0] windowOffTime[20:0] LSU_CLK ldOnTime[20:0] APB BRIDGE PWRITE ldOffTime[20:0] PSEL patternDuty[9:0] PENABLE lsuClkDuty[18:0] PADDR[4:0] SHOnTime[20:0] PWDATA[31:0] SHOffTime[20:0] LSU_VDO PRDATA[31:0] DAC_OUT DAC nPSync PVC APCCON[11:0] PD apcOnTime[20:0] apcOffTime[20:0] Pmax[9:0] Pmin[9:0] Ka[14:0] THER PI Con
Circuit Description The main signals used in LSU Controller are shown in the table. Name Direction Description PVC-VDO I The video data output from PVC. nLREADY I Its activity becomes low as the polygon motor of LSU gets the regular speed. nHSYNC I It informs the beginning of one line. It is the same as nLSYNC of PVC. nPSync 0 It is inputted to nFSync of PVC. LSU_VDO 0 The completed video data output by masking video window on PVC_VOD.
* This service manual is a property of Samsung Electronics Co., Ltd. Any unauthorized use of Manual can be punished under applicable international and/or domestic law. * This service manual is also provided on the web, the ITSELF system Samsung Electronics Co., Ltd. http://itself.sec.samsung.co.kr Samsung Electronics Co.,Ltd. May. 2005 Printed in Korea. VERSION NO. : 1.
