SERVICE MANUAL Color Inkjet Printer Epson Stylus C58/C59 Epson ME 2 Epson Stylus C79/D78 Epson Stylus C90/C91/C92/D92 Epson Stylus T20/T20E/T23/T26/S20 Epson Stylus T10/T11 Epson ME 30 Epson Stylus T21/T24/T27/S21 Confidential SEIJ06-003
Notice: All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION. The contents of this manual are subject to change without notice. All effort have been made to ensure the accuracy of the contents of this manual.
PRECAUTIONS Precautionary notations throughout the text are categorized relative to 1) personal injury and 2) damage to equipment. DANGER Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by DANGER Headings. WARNING Signals a precaution which, if ignored, could result in damage to equipment.
About This Manual This manual describes basic functions, theory of electrical and mechanical operations, maintenance, and repair procedures of the printer. The instructions and procedures included herein are intended for experienced repair technicians, and attention should be given to the precautions on the preceding page. Manual Configuration This manual consists of six chapters and Appendix. CHAPTER 1.PRODUCT DESCRIPTIONS Provides a general overview and specifications of the product. CHAPTER 2.
Revision Status Revision Date of Issue A August 7, 2006 B December 1, 2006 Description First Release [Chapter 4] • “4.3.1 Upper Housing (p38)” Note when replacing the Base Frame is added to the reassembly procedure. [Chapter 7] • “7.1 Exploded Diagram / Parts List (p85)” are updated. C May 1, 2007 [All chapters] • The model name; EPSON Stylus C90/C91/C92/D92 are added. [Chapter 1] • “1.2.3 Ink Cartridge (p14)” is updated.
Revision Date of Issue D May 16, 2008 Description [All chapters] The model name; Stylus T20/T20E/T23/T26/S20/T10/T11/Me 30 are added. [Chapter 1] • • • • “1.1 Features (p10)” is updated. “1.2.1 Paper Support (p12)” is updated. “1.2.3 Ink Cartridge (p14)” is updated. “1.3.1 USB Interface (p16)” is updated. [Chapter 2] • 2.3 Electrical Circuit Operating Principles is deleted. [Chapter 4] • “4.1.6 Procedural Differences between the Models (p35)” is updated. • “4.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E Contents Chapter 1 PRODUCT DESCRIPTION Chapter 3 TROUBLESHOOTING 1.1 Features............................................................................................................... 10 1.2 Printer Specifications.......................................................................................... 11 1.2.1 Paper Support ................................................................
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.5 Disassembling Printer Mechanism ..................................................................... 4.5.1 Hopper ..................................................................................................... 4.5.2 Printhead.................................................................................................. 4.5.3 CR Scale .............................................................
CHAPTER 1 PRODUCT DESCRIPTION Confidential
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 1.1 Features Revision E Dimension With the output tray and paper support closed Width: 435 mm (17.1 inches) Depth: 219 mm (8.6 inches) Height: 165 mm (6.5 inches) Maximum dimension Width: 435 mm (17.1 inches) Depth: 418 mm (16.5 inches) Height: 289 mm (11.4 inches) Weight 2.8 kg (6.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 1.2 Printer Specifications PRINT SPEED & PRINTABLE WIDTH Table 1-3. Character Mode Table 1-2.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 1.2.1 Paper Support Table 1-5. Paper Support Item Following table shows the paper type and sizes supported by the printer. Supported paper type and sizes vary depending on the markets. Presentation Paper Matte (EAI) Photo Quality Inkjet Paper (Other) Table 1-5. Paper Support Item Paper Size Thickness (mm) Photo Paper Glossy (EAI) Glossy Photo Paper (EUR, Asia) Half Letter A4 A5 0.08-0.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 1.2.2 Printable Area Size and Margins PAPER WIDTH AND LENGTH Refer to the table and figure below for the printable area size and margins. Table 1-6. Paper Width and Length Envelope Cut sheet Paper Size Revision E Width Length A4 210 mm (8.3") 297 mm (11.7") A5 148 mm (5.8") 210 mm (8.3") A6 148 mm (5.8") 210 mm (8.3") B5 182 mm (7.2") 257 mm (10.1") Letter 215.9 mm (8.5") 279.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 1.2.3 Ink Cartridge Revision E Table 1-12. Epson Stylus T20/T20E/T23/T26/S20/T21/T24/T27/S21 Type/color: EPSON-brand special ink cartridges Table 1-9.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Shelf life: Two years from production date (if unopened), six months after opening package. Table 1-15. Storage Temperature When stored in individual boxes When installed in main unit Storage Temperature oC Limit oC -30 to 40 (-22oF to 104oF) -20 oC to 40 oC (-4oF to 104oF) Supported OS: 1 month max.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E 1.3 Interface Epson Stylus C58/C59/ME 2 and Epson Stylus C79/D78/C90/C91/C92/D92/T20/ T20E/T23/T26/S20/T10/T11/Epson ME 30/T21/T24/T27/S21 provide an USB interface. 1.3.1 USB Interface Standard: Descriptors: Product ID: Based on Universal Serial Bus Specifications Revision 1.1, Universal Serial Bus Device Class Definition for Printing Devices Version 1.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 1.4 General Specifications Revision E 1.4.3 Safety Approvals Table 1-19. Safety Approvals 1.4.1 Electrical Specifications 100-120 V version Primary power input Table 1-17. Primary power input Safety standards 220-240 V version UL60950 EN 60950 CSA C22.2 No.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E 1.4.5 Environmental Performance Table 1-20. Environmental Performance Condition Temperature Humidity*2 Impact Vibration Operating 10 to 35°C (50 to 95°F)*3*4 20 to 80%*4 1G, 1 x 10-3 seconds 0.15G Not operating*1 -20 to 40°C (-4°F to 140°F) 5 to 85% 2G, 2 x 10-3 seconds 0.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 1.5 Control Panel 1.5.2 Indicators The control panel contains following two LED to indicate some status. 1.5.1 Buttons Table 1-22. Indicators The control panel contains following two buttons (non-lock type), which are used to set and execute some operations. The functions of each button are described in the table below. Table 1-21.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E 1.5.3 Errors and Panel Status 1.5.4 Printer Initialization Followings are the errors that occur on the printer: There are four kinds of initialization method, and the following explains each initialization. Fatal error: Maintenance request: Ink end: No ink cartridge: Incorrect ink cartridge: Paper jam: Paper out: Double feed: Ink low (warning): Carriage control error.
CHAPTER 2 OPERATING PRINCIPLES Confidential
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E 2.1 Overview This section describes the operating principles of the printer mechanism and electrical circuit boards. The printer mechanism does not differ between the Epson Stylus C58/ C59/ME2 and Epson Stylus C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/ T10/T11/Me 30/T21/T24/T27/S21. PF roller PF motor Star wheel rollers 2.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E 2.2.1 Printhead Specifications 2.2.2 Carriage Mechanism The Printhead of this product is a D2-CHIPS type. Main components of the carriage mechanism are carriage unit (including printhead, CR encoder sensor), CR motor, timing belt, and CR scale. Nozzle configuration 2.2.2.1 CR Motor Specifications Monochrome 90 nozzles Color 29 nozzles x 3 (Cyan, Magenta, Yellow) Table 2-1.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E 2.2.3 Paper Feeding Mechanism 2.2.3.2 Drive Process Paper loading/feeding mechanism consist of CR lock lever inside the ink system, LD roller shaft (including clutch mechanism), and ASF unit. 1. CR lock lever and clutch mechanism play an important role in paper loading mechanism. Refer to 2.2.3.2 Drive Process (p24) for details.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E 2.2.4 Ink System Mechanism The Ink system mechanism consists of pump mechanism and capping mechanism that includes wiper mechanism. 2.2.4.1 Pump Unit Mechanism When the PF motor turns, power is always transmitted to the ink system. Table 2-3.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 2.3 Power-On Sequence Table 2-4. Normal power-on sequence Operation*1 This section describes the power-on sequences. 4-1.The carriage moves back and forth between its home position and the 80-digit side for two times. Completing ink charge. No paper on the paper path. The Printhead is capped with the Cap of the Ink System. The Carriage is locked by the CR Lock. 5.
CHAPTER 3 TROUBLESHOOTING Confidential
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 3.1 Overview 3.1.2 Preliminary Checks Before starting troubleshooting, be sure to verify that the following conditions are all met: This chapter describes how to solve problems. W A R N IN G C H E C K P O IN T Revision E Be careful to avoid electric shocks when checking the electrical circuit boards (C664 MAIN, PSE and B circuit boards) while the power is turned on.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E 3.2 Troubleshooting With LED Error Indications LED error display, cause, and remedy are explained here. Table 3-1.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E 3.3 Troubleshooting for Motors and Sensors Motor Table 3-2. Motor Resistance and Check Points Motor name Type Location Check point Resistance CR motor Motor with DC brush CN5 Pin 1 & 2 28.8 Ω ± 10% PF motor 4-phase, 200-pole HB stepping motor CN6 Pin 1 & 3 Pin 2 & 4 4.3 Ω + 8%/12%(20ºC) Sensor Sensor name PE sensor Table 3-3.
CHAPTER1 4 DISASSEMBLY/ASSEMBLY Confidential
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.1 Overview C A U T IO N This section describes procedures for disassembling the main components of the product. Unless otherwise specified, disassembled units or components can be reassembled by reversing the disassembly procedure. Procedures which, if not strictly observed, could result in personal injury are described under the heading “WARNING”.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.1.2 Tools Revision E Table 4-2. Screws No. Use only specified tools to avoid damaging the printer. Table 4-1. Tools Image Name Type C.B.P. 3 x 8 C.B.P-TITE SCREW C.P. 3 x 4 C.P. SCREW 7 Name (+) Phillips screwdriver #1 (+) Phillips screwdriver #1 Flathead screwdriver Tweezer Supplier Parts No. EPSON EPSON EPSON EPSON 1080530 1080532 1080527 1080561 9 4.1.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.1.4 Work Completion Check Table 4-3. Work Completion Check If any service is made to the printer, use the checklist shown below to confirm all works are completed properly and the printer is ready to be returned to the user.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E 4.1.6 Procedural Differences between the Models Some parts installed on Epson Stylus C58/C59/ME 2, Epson Stylus C79/D78/C90/C91/C92/D92 and Epson Stylus T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 differ from each other as described in the table below, and for that, there are some procedural differences between the models. See the respective pages for details.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Item Revision E Products*1 Description A Shield Plate L is small. 3 B C Reference Page -- 3 see 4.5.8 EJ Frame Assy/EJ Roller (p54) 3 -- see 4.5.9 Main Frame (p56) -- -- see 4.6.2 Waste Ink Pads (p67) Shield Plates Shield Plate L is large. -- 7 parts 3 Waste Ink Pad 9 parts Note *1 : -- 3 3 see 4.5.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E 4.2 Disassembly Procedures This section explains the procedures for disassembling the product. Unless otherwise stated, reassembly should be carried out in the reverse order of the disassembly procedure. For detailed engagement relations among main components, refer to the exploded diagrams in the Appendix.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.3 Removing Housing 3. 4.3.1 Upper Housing 4. Part/Unit that should be removed before removing Upper Housing None C A U T IO N Push the marked area ( )to release the tabs (x2, ) on the front side of the printer (Arrows ). Push the dotted area ( ) from inside as shown in the figure to release the tab (x1, ) in the middle.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 The Ink Position Label is not included in the Upper Housing. When installing the Upper Housing, order the label separately and attach the Ink Position Label to the place shown below. Upper Housing Ink Position Label Install the label in this position with Black to the right. Figure 4-6.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E 4.4 Removing Board CN3 4.4.1 Main Board Part/Unit that should be removed before removing Main Board CN1 Upper Housing /Hopper Removal Procedure 1. 2. 3. Peel off the acetate tapes (x2) from the Main Frame. Disconnect the following connector cables (x4) and FFCs (x2) from the connectors on the Main Board Assy.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 A D J U S T M E N T R E Q U IR E D Revision E After replacing the Main Board, perform the following adjustment. (Refer to Chapter 5 “ADJUSTMENT”) 1. “EEPROM data copy” (only after replacement) 2. “Destination Setting” (only after replacement*) 3. “USB ID Input” (only after replacement*) 4. “Waste Ink Pad Counter” (Ink Pads must be replaced) 5. “Head ID Input” (only after replacement*) 6.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.5 Disassembling Printer Mechanism Revision E Before installing the Hopper, be sure to adjust the position of the LD Roller following the steps below. 1. Unlock the Carriage Lock. (See “4.5.2 Printhead” (p43)) 2. Move the CR Unit to the center of the printer. 3. Adjust the position of LD Roller turning the EJ Roller clockwise. 4.5.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.5.2 Printhead C H E C K P O IN T 2. 3. Revision E Open the Cartridge Cover and remove all the Ink Cartridges from the CR Unit. Release the FFCs from the tabs. The removal procedures differ depending on the model. For Epson Stylus C58/C59/ME 2, see “4.6.1 Printhead” (p64). FFCs Part/Unit that should be removed before removing Printhead Cartridge Cover Tabs Upper Housing Removal Procedure 1.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 5. Release the tabs (1) and (2) with a flathead precision screwdriver, and remove the Holder Board Assy upward. CR Unit 6. Revision E Release the tab and pull out the blade of the Sub FFC Guide from the slit, and remove the Sub FFC Guide pulling out the guide pin (x1) from the notch. CR Unit Blade Sub FFC Guide Slit Notch Tab (1) Tab (2) Guide Pin Notch Figure 4-18.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 8. Remove the Head FFC (x1) from the connector (x1), and remove the Printhead. Revision E When installing the Holder Board Assy, make sure to check if the assy is properly installed in the right position. The assy is likely to be installed in the wrong position. Head FFC There’s no need to remove the Cartridge Cover, when replacing the Print Head of the Epson Stylus C79/D78.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.5.3 CR Scale C A U T IO N 3. 4. Pay attention to the following instructions: • Do not touch the CR Scale with bare hands. • Do not damage the CR Scale. • Do not stretch Extension Spring 3.289 too much. Revision E Release the Extension Spring 3.289 from the hook of the Main Frame. Rotate the CR Scale 90 degrees as shown in the figure and remove the scale from the Main Frame.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.5.4 CR Motor 3. Part/Unit that should be removed before removing CR Motor 4. Upper Housing /Hopper /CR Scale Revision E Loosen the tension of the Timing Belt by pressing the Driven Pulley Holder in the direction of the arrow as shown in the figure, and release the Timing Belt from the pinion gear of the CR Motor. Remove the screws (x2), and remove the CR Motor from the Main Frame.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.5.5 CR Unit/Timing Belt Part/Unit that should be removed before removing CR Unit/Timing Belt Upper Housing /Hopper /Print Head /Ink System (Cap Assy)/CR Scale/CR Motor After releasing the Timing Belt, temporarily secure the belt to the Cartridge Cover with a tape or the like so as not to allow the grease to come in contact with the Timing Belt.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 >> From the previous page. 3. Fold back the Head FFC and secure it with Rib A again. Head FFC Figure 4-31. Installing Head FFC (3) 4. 5. 6. • • • Connect the Head FFC to CN1, CN3 of the Main Board. (see “ 4.4.1 Main Board ” (p.40)) Arrange FFC1 on top of FFC2. Secure the Head FFC with a Strong tape by the following standard. Size: 60mm (L) x 18mm (W) The tape must be attached vertically to the Head FFC.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E >> From the previous page. Epson Stylus T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/ T24/T27/S21's Case 1. Put the Head FFC through the Hole of the Main Frame. (see Figure 4-29 (p.48)) 2. Secure it with Rib A, then fold it back. (see Figure 4-29 (p.48)) 3. Put the FFC1 and FFC2 through the Ferrite Core. 4. Connect the Head FFC to CN1, CN3 of the Main Board. (see “ 4.4.1 Main Board ” (p.40)) 5.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.5.6 Ink System removal 2. Revision E Detach the Ink Tube from the Cap Assy, and remove the Cap Assy. Part/Unit that should be removed before removing Ink System Cap Assy Upper Housing Ink Tube C A U T IO N Do not touch or damage the Sealing Rubber or the Head Cleaner when performing the following work. Mark the connection location before removing the Ink Tube.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 10. Pull out the Ink Tube and the Tube Stopper (Figure 4-43) from the connector of the Waste Ink Pads, and draw out the tube from the hole of the Frame Base. 11. Remove the pump system. Ink Tube Connector of Waste Ink Pad Revision E When installing the Cap Assy, follow the steps described below. 1. Arrange the tube between the ribs as shown in the figure below. 2.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.5.7 Power Supply Board Part/Unit that should be removed before removing LD Roller/ASF Unit C A U T IO N Upper Housing Revision E Do not turn the Power Supply Board upside down as shown in the figure below. This figure is only used to show the location of the parts and the harness arrangement. Removal procedure 1. 2. Peel off the acetate tape from the Frame Base.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E 4.5.8 EJ Frame Assy/EJ Roller EJ Roller Removal Part/Unit that should be removed before removing EJ Frame Assy/EJ Roller 2. Insert a flathead screwdriver between the rib and the Spur Gear, 59.6 and push the gear in the direction of the arrow, and remove the Spur Gear, 59.6 Upper Housing C H E C K P O IN T When installing Spur Gear, 59.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E Follow the procedure below to install the Grounding Spring (Grounding Spring, Frame) of Epson Stylus C90/C91/C92/D92. (The spring is different in shape from that of other models.) 1. Hook the end of the Grounding Spring, Frame to the EJ Frame Assy. 2. Hook the bend of the Grounding Spring, Frame to the Shield Plate, Front. 3.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.5.9 Main Frame 4. Part/Unit that should be removed before removing LD Roller/ASF Unit Revision E Remove the Extension Springs (x3) from the hooks of the Main Frame and the guide pins of the Upper Paper Guide.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 6. While detaching the shaft of the LD Roller from the LD Holder Shaft Assy, remove the Main Frame. 9. Revision E Release the tab (x1), and remove the PE Detector Assy. LD Holder Shaft Assy PE Detector Assy LD Roller Main Frame Upper Paper Guide Tab Figure 4-57. Removing Main Frame (2) 7. Figure 4-60. Removing PE Detector Assy Release the connector cable of the PE Detector from the tabs (x4).
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 11. Remove the PE Detector Lever and Torsion Spring, 0.222. Revision E When securing the Main Frame to the Frame Base with screws, be sure to perform the tightening in the order of the numbers indicated in Figure 4-56 (p.56). PE Detector Lever When installing the Shield Plate L, be cautious not to damage the Spur Gears of the PF Roller and the EJ Roller.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.5.10 LD Roller/ASF Unit Part/Unit that should be removed before removing LD Roller/ASF Unit Upper Housing /Hopper /Main Board /Main Frame /EJ Frame Assy. / Print Head /CR Scale/CR Motor/CR Unit/Timing Belt/Ink System Revision E LD Roller Removal C A U T IO N Be cautious of the following points. Do not touch the LD Roller with bare hands. Do not touch the roller of ASF Unit with bare hands.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 ASF Unit Removal 1. 2. Remove the screw (x1) from the side of the Lower Housing. Remove the screws (x2), and remove the ASF Unit taking care not to scratch it with the positioning tab. Revision E Assemble the LD Roller as shown below. LD Roller Shaft Guide pin Positioning hole Spur Gear 36.8 LD Roller Extension Spring 0.143 ASF Unit Tabs Clutch Figure 4-69. Assembling LD Roller (1) 1.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.5.11 Waste Ink Pads Revision E When installing the Waste Ink Pads on the section , be sure to lay the six parts one on top of another in the order shown in the figure. Part/Unit that should be removed before removing Waste Ink Pads Upper Housing /Hopper /Main Board /Main Frame /EJ Frame Assy.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.5.12 PF Roller C A U T IO N 2. Revision E Remove the Spur Gear, 13.5 from the PF Roller with a flathead screw driver or the like. Do not touch or damage the coated area of the PF Roller Assy., when performing the following work. When installing the Spur Gear, 13.5, be sure to install a new one. The Spur Gear 13.5 cannot be reused.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.5.13 PF Motor When installing the PF Motor, arrange the cable into the slit and the hook, then place the ferrite core into the positioning hole. Part/Unit that should be removed before removing PF Motor Upper Housing /Hopper /Main Board /Main Frame /EJ Frame Assy. / Print Head /CR Scale /CR Motor /CR Unit /Timing Belt /EJ Roller /PF Roller Positioning hole Removal procedure 1.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.6 Procedure Specific to Epson Stylus C58/C59/ ME 2 C H E C K P O IN T Revision E The Cartridge Cover Hinge cannot be reused. 4.6.1 Printhead 3. Part/Unit that should be removed before removing Printhead Upper Housing /Hopper Removal Procedure Printhead Removal 1. Unlock the Carriage Lock with a flathead screwdriver or a similar tool, and move the CR Unit to the center of the printer.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 6. Release the FFC from the tabs. 8. Revision E Release the tabs (x2) that secure the Holder Board Assy, and remove the Holder Board Assy upward. CR Unit FFCs CR Unit Tabs Tab (1) Tab (2) Tab (1) Figure 4-84. Releasing FFCs from Tabs 7. Disconnect the FFCs (x2) that are connected to the CSIC Board and the CR Encoder Board. FFCs Tab (2) Tab (2) Tab (1) Holder Board Assy.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 C A U T IO N 9. Do not touch or damage the nozzles or the ink supply needles of the Printhead. Revision E When installing the Holder Board Assy, make sure to check if the assy is properly installed in the right position. The assy is likely to be installed in the wrong position. The Ink Position Label is not included in the Cartridge Cover.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.6.2 Waste Ink Pads Revision E When installing the Waste Ink Pads on the section , be sure to lay the four parts one on top of another in the order shown in the figure. Part/Unit that should be removed before removing Waste Ink Pads Upper Housing /Hopper /Main Board /Main Frame /EJ Frame Assy.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 4.7 The Shortest Way to Remove the Main Frame. If the parts to repair is only the parts after the Main Frame is removed, there’s another way to remove the Main Frame together with other parts. (See the following list of “Target Parts of this removal” or the parts marked with “*” in Figure 4-2, "Disassembling Flowchart" (p.37)) 6. 7. Follow the same steps from Step 2 in “ 4.5.9 Main Frame ” (p.
CHAPTER 5 ADJUSTMENT Confidential
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E 5.1 Adjustment Items and Overview This chapter describes adjustments necessary after the disassembly/reassembly of the printer. 5.1.1 Servicing Adjustment Item List The adjustment items of this product are as follows. Table 5-1.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E Table 5-1. Adjustment Items Adjustment Items Function Item Purpose Method Outline Tool Used Media A4 (Plain paper) Head angular adjustment Adjust the vertical/horizontal tilt that occur when installing the Head, by the software. Use the adjustment program to print the adjustment pattern and adjust to meet the standard.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E Table 5-3. Additional Functions Function Item Purpose Method Outline Plain Paper Additional Functions Print check pattern Photo Quality Ink Jet Paper EEPROM data readout This printing is executed to check whether all adjustment results are normal. Select and execute the functions by the adjustment program. Read the EEPROM data for analysis.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E 5.1.2 Replacement Part Adjustment Items The following table indicates the adjustment items for replacement parts. Note: “Required” in this table indicates the adjustment item that must be executed when the corresponding part has been removed/replaced.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E Table 5-4.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 5.2 Adjustment by Using Adjustment Program This section explains how to judge print samples by using the adjustment program. Follow the instructions of the adjustment program for details of the adjustment methods. Revision E FOR EPSON STYLUS C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/ T11/ME 30/T21/T24/T27/S21 Patterns are printed as shown below. 5.2.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E 5.2.2 Top Margin Adjustment 5.2.3 Bi-D Adjustment Patterns are printed as shown below. 8 types of the pattern below, each dot size (ECO/VSD1/VSD2/VSD3) x color (Black/ Color) are printed. Top Pattern Paper -2 3±1 mm -1 TOF Line -5 -7 -1 1 2 3 0 Figure 5-4.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 5.2.4 First Dot Adjustment 5.2.5 PF Band Adjustment Patterns are printed as shown below. Patterns are printed as shown below. Revision E -3 -2 5 mm -2 -1 0 1 2 -1 0 1 2 3 Figure 5-5. Left Right margin adjustment Pattern Printing Figure 5-6.
CHAPTERY 6 MAINTENANCE Confidential
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 6.1 Overview 6.1.2 Service Maintenance If any abnormal print (dot missing, white line, etc.) has occurred or the printer indicates the “Maintenance request error” (This error is displayed as “Maintenance call error” in the STM3), take the following actions to clear the error. This section provides information to maintain the printer in its optimum condition. 6.1.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 1. Select the “EPSON Status Monitor 3” in the printer driver utility, and make sure that the printer is in stand-by state by using the Status monitor 3. If the printer is in stand-by state, the following figure is indicated on the monitor. Revision E Maintenance request error (Maintenance call error) Ink is used for the printhead cleaning operation as well as the printing operation.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 6.1.3 Lubrication Revision E Refer to the following figures for the lubrication points. The characteristics of the grease have great affects on the mechanical function and durability, especially does the characteristics about temperature environment. The type and amount of the grease used to lubricate the printer parts are determined based on the results of the internal evaluations.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Bearing A Bearing A of Lower Housing (for PF Roller) Shaft and Groove of PF Roller Lubrication Points G-71 Lubrication Point Revision E G-71 φ1 mm x around shaft x 2 φ1 mm x along inner edge (L) Use an injector to apply G-71. • G-71 must not be adhered to other parts.
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Bearings (x19) below the hooks of Lower Housing (for EJ Roller) Lubrication Points (x 19) Right Side View G-74 Revision E 1 G-71 1.5 mm 0.04g/position Lubrication Point ( Use a flux dispenser to apply G-74 • G-74 must not be adhered to other parts. • Rotate EJ Roller when lubricate it with G-74.
CHAPTER 7 APPENDIX Confidential
Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E 7.1 Exploded Diagram / Parts List This manual does not provide exploded diagrams or parts list. For the information, see SPI (Service Parts Information).
