Epson Stylus PHOTO 890 Service Manual

Download or browse on-line these Service Manual for Epson Stylus Photo 890 All in One Printer, Digital Camera.

Epson Stylus Photo 890 Manual Information:

This manual for Epson Stylus Photo 890, given in the PDF format, is available for free online viewing and download without logging on. The guide contains 205 pages, and the size of the file at download is 11.06 Mb. The document type is Service Manual.

Download Manual

More Manuals:

In case you failed to obtain relevant information in this document, please, look through related operating manuals and user instructions for Epson Stylus Photo 890. Just click one of the links below to go to the selected manual:

Summary of Contents:

[Page 1] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Color ink jet printer SEIJ00025 ® SERVICE MANUAL Stylus PHOTO 890 Stylus PHOTO 1290/1280 ...

[Page 2] Epson Stylus Photo 890

Notice o 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, or otherwise, without the prior written permission of SEIKO EPSON ...

[Page 3] Epson Stylus Photo 890

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 in...

[Page 4] Epson Stylus Photo 890

PREFACE This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of EPSON Stylus PHOTO 890/1280/ 1290. The instructions and procedures included herein are intended for the experienced re...

[Page 5] Epson Stylus Photo 890

Symbols Used in this Manual Various symbols are used throughout this manual either to provide additional information on a specific topic or to warn of possible danger present during a procedure or an action. Be aware of all symbols when they are use...

[Page 6] Epson Stylus Photo 890

Revision Status Revision Issued Date Description A November 16, 2000 First Release B December 27, 2000 Revision: • page -78: A warning message for static electricity added. • page -79: Caution messages for torque and ink tube position added • p...

[Page 7] Epson Stylus Photo 890

Table of Contents Chapter 1 PRODUCT DESCRIPTIONS 1.1 Overview ............................................................................................................ 11 1.1.1 Features ................................................................

[Page 8] Epson Stylus Photo 890

3.1.1.4 Remedies for the Paper Jam Error ..................................................... 67 3.1.1.5 Remedies for No Ink Cartridge Error/Ink Cartridge Problem ........... 67 3.1.1.6 Remedies for Maintenance Request Error ........................

[Page 9] Epson Stylus Photo 890

5.4.1.8 Waste Ink Pad Replacement ............................................................ 152 5.4.1.9 Clogged Nozzle Recovery ............................................................... 152 Chapter 6 MAINTENANCE 6.1 Overview .................

[Page 10] Epson Stylus Photo 890

CHAPTER 1 PRODUCT DESCRIPTIONS ...

[Page 11] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Overview 11 1.1 Overview The EPSON Stylus PHOTO 890 and EPSON Stylus PHOTO 1280/1290 are designed for both home use and office use. Stylus PHOTO 1280 is for EAI use only. 1.1.1 Featu...

[Page 12] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Overview 12 1.1.2 Accessories, Consumable Products, and Options ACCESSORIES o Users Guide o Ink cartridge (Black and color) o CD-ROM (Printer driver and utilities) CONSUMABLE PRODUCTS ...

[Page 13] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Overview 13 OPTIONS * The asterisks are substitutions for the last digits of the product name, which may vary by country. Photo Quality Glossy Film (A4) Photo Quality Glossy Film (Lett...

[Page 14] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Basic Specifications 14 1.2 Basic Specifications 1.2.1 Printing Specification o Print Method: On demand ink jet o Nozzle Configuration n Monochrome: 48 nozzles (120 dpi) n Color: 48 n...

[Page 15] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Basic Specifications 15 1.2.5 Paper Specifications The asterisk(*) indicates Stylus PHOTO 1280/1290 use only. CUT SHEET o Size: See the table below: o Quality: Plain paper, Bond paper...

[Page 16] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Basic Specifications 16 360 DPI INK JET PAPER o Size (Width x Length): A3+ * 329mm x 483mm A3 * 297mm x 420mm A4 210mm x 297mm A6 105mm x 148mm Letter 216mm x 279mm INK JET TRANS...

[Page 17] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Basic Specifications 17 PREMIUM GLOSSY PHOTO PAPER o Size (Width x Length): +A3 * 329mm x 483mm A3 * 297mm x 420mm A4 210mm x 297mm B * 210mm x 297mm Letter 216mm x 279mm Roll Pape...

[Page 18] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Basic Specifications 18 * : Stylus PHOTO 1290 only. *1 :Bottom margin can be reduced to 3mm when paper dimension is defined by using command, otherwise it remains 14mm. As for an area...

[Page 19] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Basic Specifications 19 1.2.8 Ink Cartridge BLACK INK CARTRIDGE The black ink cartridge specifications for Stylus PHOTO 890 and Stylus PHOTO 1280/1290 are common. o Type: Exclusive Ca...

[Page 20] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Basic Specifications 20 1.2.9 Electric Specification 120V VERSION o Rated Voltage: AC120V o Input Voltage Range: AC99∼132V o Rated Frequency Range: 50∼ 60Hz o Input Frequency Rang...

[Page 21] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Basic Specifications 21 1.2.11 Environmental Condition TEMPERATURE o Operating: 10 to 35°C *2 o Non-Operating: -20 to 60°C *1 Within 1 month at 40°C /120 hours at 60°C *1 : In a s...

[Page 22] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Interface 22 1.3 Interface The EPSON Stylus PHOTO 890/1280/1290 provides USB and parallel interfaces as standard. 1.3.1 Parallel Interface (Forward Channel) o Transmission Mode: 8 bi...

[Page 23] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Interface 23 * A low logic level on the Logic H signal is 2.0V or less when the printer is turned off, and this signal is equal to or exceeding 3.0V when the printer is turned on. The r...

[Page 24] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Interface 24 NOTE: In/Out refers to the direction of signal flow seen from the printer side. Table 1-12. Connector Pin Assignment and Signals Pin No. Signal Name Return GND Pin In/Ou...

[Page 25] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Interface 25 1.3.2 Parallel Interface (Reserve Channel) o Transmission Mode: IEEE-1284 nibble mode o Adaptable Connector See forward channel. o Synchronization: Refer to the IEEE-1284 ...

[Page 26] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Interface 26 o Device ID: The printer sends the following device ID string when requested. n When IEEE1284.4 is enabled, <00H><5AH> *1 / <00H><5CH> *2 MFG: EPSON...

[Page 27] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Interface 27 1.3.4 Prevention of Data Transfer Time-out Generally, hosts abandon data transfer to peripherals when the peripheral is in the busy state for dozens of seconds continuous...

[Page 28] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Operations 28 1.4 Operations 1.4.1 Buttons o Roll Paper button o Maintenance button o Ink Cartridge replacement button o Power button 1.4.2 Indicators o Power Lights when the operati...

[Page 29] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Operations 29 *4: Factory default setting. 1.4.4 Special Setting Mode To enter the special setting mode, press the Maintenance button and the Roll Paper button while turning on the pr...

[Page 30] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Operations 30 1.4.5 Printer Initialization EPSON Stylus PHOTO 890/1280/1290 executes initialization by using 3 methods mentioned below. 1. Hard Initialization The Hard Unitization wil...

[Page 31] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Dimension 31 1.5 Dimension EXTERNAL DIMENSION o Stylus PHOTO 890 n When stored(mm): 471 (W) x 290 (D) x 175 (H) n For use(mm): 471 (W) x 613 (D) x 302(H) o Stylus PHOTO 1280/1290 n W...

[Page 32] Epson Stylus Photo 890

EPSON Stylus PHOTO 890/1280/1290 Revision C PRODUCT DESCRIPTIONS Dimension 32 ...

[Page 33] Epson Stylus Photo 890

CHAPTER 2 OPERATING PRINCIPLES ...

[Page 34] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Overview 34 2.1 Overview This section describes the operating principles of the printer mechanism and electrical circuit boards. The major components of the EPSON Stylus Photo 890/128...

[Page 35] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Overview 35 2.1.1 Printhead Mechanism The printhead mechanism operating principles of the Stylus Photo 890/1290 are basically the same as for the previous EPSON ink jet printers. This...

[Page 36] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Overview 36 2.1.2 Carriage Mechanism The carriage mechanism of the Stylus Photo 890/1290 is composed of the carriage motor (CR motor), carriage guide shaft, platen gap adjustment/para...

[Page 37] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Overview 37 2.1.2.2 Platen Gap (PG) /Parallelism Adjustment Mechanism The PG adjust lever is attached to the left end of the carriage guide shaft. When the carriage guide shaft, which...

[Page 38] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Overview 38 Figure 2-4 gives the paper feeding mechanism block diagram, showing the parts along the PF motor drive transmission paths. Figure 2-4. Paper Feeding Mechanism The printer ...

[Page 39] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Overview 39 2.1.3.1 CR Lock Mechanism The carriage lock mechanism prevents the carriage from being left uncapped for a long time, which is usually caused by vibration during printer t...

[Page 40] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Overview 40 2.1.4 Paper Loading Mechanism The paper loading mechanism loads paper at the ASF unit and feeds paper to the PF rollers. The ASF unit is the same as in previous models. A ...

[Page 41] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Overview 41 2.1.4.2 Paper Loading Operation Multiple paper loading prevention mechanism is included in the ASF unit to ensure steady paper loading. To prevent any paper from falling f...

[Page 42] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Overview 42 2.1.4.3 Pump Mechanism The pump mechanism absorbs ink from the printhead and the cap assembly. The wiper for head cleaning is included in the cap assembly. The pump mechan...

[Page 43] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Overview 43 2.1.4.4 Capping Mechanism The capping mechanism, which is driven by the pump unit, caps the printhead closely to maintain air tightness inside the cap. This operation is r...

[Page 44] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Electrical Circuit Operating Principles 44 2.2 Electrical Circuit Operating Principles The electric circuit of the Stylus Photo 890/1290 consists of the following: o Control circuit bo...

[Page 45] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Electrical Circuit Operating Principles 45 Figure 2-12 shows the block diagram for the C378PSB/PSE board. Figure 2-12. C378PSB/PSE Board Block Diagram The C378PSB/PSE Board produces t...

[Page 46] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Electrical Circuit Operating Principles 46 2.2.1.2 Protection Circuits The C378PSB/PSE board has the various protection circuits to stop voltage outputs if an abnormal condition relat...

[Page 47] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Electrical Circuit Operating Principles 47 2.2.2 C393MAIN Board Circuit Operation Principles The C393MAIN board includes the following: n Logic circuit (CPU, ASIC, DRAM, EEPROM, and so...

[Page 48] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Electrical Circuit Operating Principles 48 Figure 2-14. Block Diagram for the C393MAIN-B Board (For Stylus Photo 890/1290) Figure 2-15. Block Diagram for the C393MAIN-C Board (For St...

[Page 49] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Electrical Circuit Operating Principles 49 Table 2-16 shows the major ICs on the C393MAIN Board and their functions. Table 2-16. Major Element on C393MAIN IC Location Functions CPU (HD...

[Page 50] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Electrical Circuit Operating Principles 50 2.2.2.1 Printhead Driver Circuit The printhead driver circuit includes: n Common driver IC10 (E09A14RA)/IC11 (E09A15KA) directly attached to ...

[Page 51] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Electrical Circuit Operating Principles 51 2.2.2.2 RTC (Real Time Clock)/ Reset/ EEPROM Circuit RTC9822**includes built-in RTC and EEPROM and functions as a reset. The RTC part has an...

[Page 52] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Electrical Circuit Operating Principles 52 2.2.2.3 Motor Driver Circuit Stylus Photo 890/1290 is equipped with 3 kinds of motors, the CR motor and PF motor that are a DC motor and an ...

[Page 53] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Electrical Circuit Operating Principles 53 Figure 2-20. CR Motor Driver Circuit Block Diagram (C393MAIN-C) NOTE: When C393MAIN-C is installed, ASIC sends signals of IC9 and IC1 through...

[Page 54] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Electrical Circuit Operating Principles 54 n ASIC(IC19) detects the motor control current value is 720mA. n P1 (= number of pulses output during the above carriage movement) is 30* or ...

[Page 55] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Electrical Circuit Operating Principles 55 PF motor driver circuit DC motor is used as the PF motor in this printer. IC9 (A39374SLB) on the C393MAIN/C393MAIN-B board controls the CR an...

[Page 56] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Electrical Circuit Operating Principles 56 Figure 2-25. PF Motor Driver Circuit Block Diagram (C393MAIN-C) ASIC(IC19)controls paper feeding amount by referring to the encoder pulses. A...

[Page 57] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Electrical Circuit Operating Principles 57 2.2.2.4 ASF/Pump Motor Driver Circuit ASF/Pump motor is a PM type stepping motor. The block diagram for the ASF/Pump motor is as shown below...

[Page 58] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Electrical Circuit Operating Principles 58 2.2.2.5 Sensor Circuit Stylus Photo 890/1290 has the following five sensors to detect printer’s status. n PE sensor n ASF sensor n Ink cart...

[Page 59] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C OPERATING PRINCIPLES Electrical Circuit Operating Principles 59 Each sensor’s functions and operating principles are as described below: o PE sensor The PE sensor is located at the bottom right edge of th...

[Page 60] Epson Stylus Photo 890

CHAPTER 3 TROUBLESHOOTING ...

[Page 61] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C TROUBLESHOOTING Overview 61 3.1 Overview This chapter describes how to troubleshoot problems. It consists of the sections shown in the flowchart below. When identifying and troubleshooting problems, be su...

[Page 62] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C TROUBLESHOOTING Overview 62 3.1.1 Self-Diagnostic Function The EPSON Stylus PHOTO 890/1290 is equipped with the self-diagnostic function. With this function, the printer can check its operations after pow...

[Page 63] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C TROUBLESHOOTING Overview 63 Paper Jam o The printer fails to eject remaining paper with the specified number of paper feeding steps at power-on. o The printer can not eject paper despite the FF command is ...

[Page 64] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C TROUBLESHOOTING Overview 64 Table 3-4. Error Condition and Possible Causes No. Error Possible Causes Refer to: 1 Paper Out 1. Failure in paper loading 2. PE sensor connector is disconnected. 3. Sensor actu...

[Page 65] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C TROUBLESHOOTING Overview 65 3.1.1.3 Remedies for Paper Out Error This section provides checkpoints and corresponding actions to take when a Paper Out error occurs for either of the following reasons: n Pa...

[Page 66] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C TROUBLESHOOTING Overview 66 3 Ditto Check if the PE sensor is defective. Manually toggling the actuator, measure the voltage at CN5/Pin 3. The correct voltage levels are as follows: 4 The Maintenance Swi...

[Page 67] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C TROUBLESHOOTING Overview 67 3.1.1.4 Remedies for the Paper Jam Error This section includes the checkpoints and actions to take to troubleshoot the Paper Jam error when it occurs during paper feeding or af...

[Page 68] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C TROUBLESHOOTING Overview 68 NOTE: If the exhibited problem is similar to a problem listed under “Problem”, take the actions in the right column. If not, proceed to the next step. 3.1.1.6 Remedies for ...

[Page 69] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C TROUBLESHOOTING Overview 69 3.1.1.7 Remedies for Fatal Error A fatal error is basically caused by any of the following conditions: n The printer fails to detect the CR home position. n The printer fails t...

[Page 70] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C TROUBLESHOOTING Overview 70 4 Ditto Turn the printer on and check for the correct voltages at the pins shown in the figure below: Table 3-9. Remedies for Fatal Error (continued) Step Problem Check & ...

[Page 71] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C TROUBLESHOOTING Overview 71 7 The printer is turned on but the PF motor does not operate at all. After that, a fatal error is displayed. Measure the coil resistance of the PF motor using a meter as sh...

[Page 72] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C TROUBLESHOOTING Overview 72 3.1.2 Isolating the Faulty Part on the Power Supply Board This section explains how to troubleshoot the following problems: n The printer is turned on but it does not perform in...

[Page 73] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C TROUBLESHOOTING Overview 73 Table 3-12. CR Motor does not Work Step Checkpoint Action 1 Getting ready for checking waveforms. Using an oscilloscope, check the outputwaveform at CN14 (CR motor connecto...

[Page 74] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C TROUBLESHOOTING Overview 74 Table 3-14. ASF/Pump Motor does not Work Step Checkpoint Action 1 Getting ready for checking waveforms. Using an oscilloscope, check the outputwaveform at CN115 (ASF motor co...

[Page 75] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C TROUBLESHOOTING Overview 75 5 Check if the compression spring has come off the cap unit. Check if the compression spring is correctly assembled in the cap unit as shown below. Note if the compression s...

[Page 76] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C TROUBLESHOOTING Overview 76 7 Check if the head FFCs have come off the printhead. Remove the head FFC holder from the CR unit, and check that both FFCs are properly connected. Even if they appear to b...

[Page 77] Epson Stylus Photo 890

CHAPTER 4 DISASSEMBLY AND ASSEMBLY ...

[Page 78] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Overview 78 4.1 Overview This chapter describes procedures for disassembling the main components of the EPSON Stylus Photo 890/1280/1290. Unless otherwise specified, disassembly u...

[Page 79] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Overview 79 4.1.2 Tools Table 4-1 lists the tools recommended for disassembling, assembling, or adjusting the printer. Use only tools that meet these specifications. NOTE: *1 : Co...

[Page 80] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Overview 80 4.1.3 Specifications for Screws Table 4-2 shows screw specifications. During assembly and disassembly, make sure that the specified types of screws are used at proper ...

[Page 81] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Overview 81 4.1.4 Service Checks After Repair Before returning the printer after servicing, use the check list below, which enables you to keep record of servicing and shipping mo...

[Page 82] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 82 4.2 Disassembly Procedures The flowchart below shows procedures for disassembly. Figure 4-1. Flowchart of Disassembly START HOUSING Removal MOTOR ASSEMBL...

[Page 83] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 83 4.2.1 HOUSING Removal Since the printer mechanism itself structures the bottom part, it appears just by removing HOUSING. 1. Open the printer cover and ...

[Page 84] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 84 4.2.2 Circuit Board Assembly Removal Since BOARD ASSEMBLY, MAIN and BOARD ASSEMBLY, POWER SUPPLY are built in a bracket separated from the Printer Mechan...

[Page 85] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 85 Figure 4-4. Circuit Board Removal 6. For removing each circuit board assembly from the M/B Shield Plate, remove the screws securing each unit and shield ...

[Page 86] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 86 4.2.3 Panel Unit Removal 1. Remove HOUSING. (Refer to Section 4.2.1.) 2. Remove the harness for the Panel Unit from the frame in the printer mechanism. 3....

[Page 87] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 87 5. Remove 1 screw (CBP, 3x8) securing Panel Unit to the printer mechanism and release the pins fit in the printer mechanism. Then remove the Panel Unit al...

[Page 88] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 88 4.2.4 Printhead Unit Removal 1. Remove HOUSING. (Refer to Section 4.2.1.) 2. Set the PG lever to the rear. 3. Using tweezers, put the CR lock lever down t...

[Page 89] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 89 4.2.5 TRAY, ABSORBER ASSEMBLY Removal 1. Remove HOUSING. (Refer to Section 4.2.1.) 2. Remove the Panel Unit. (Refer to Section 4.2.3.) 3. Remove 2 screws ...

[Page 90] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 90 9. Removing 1 screw (CBP, 3x8) securing TRAY, ABSORBER ASSEMBLY to the right part of the printer mechanism. 10. Remove SPACER, TRAY securing TRAY, ABSORB...

[Page 91] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 91 4.2.6 Ink Unit Removal NOTE: Ink Unit consists of the Pump Unit, Cleaner Head, and Cap Assembly. 1. Remove HOUSING. (Refer to Section 4.2.1.) 2. Remove t...

[Page 92] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 92 Figure 4-15. Setting the ABSORBER, SLIDER, CAP Figure 4-16. Ink Tube Installation (1) CAUTION 1. When handling CLEANER, HEAD, note the points below: n Do...

[Page 93] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 93 Figure 4-17. Ink Tube Installation (2) Figure 4-18. Connecting the Tube to the Pump Unit Tube is not stretched out. Tube is not bent. Pump Unit Marking l...

[Page 94] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 94 4.2.7 MOTOR ASSEMBLY, CR Removal 1. Remove HOUSING. (Refer to Section 4.2.1) 2. Using tweezers or a small screw driver, put the carriage lock lever down t...

[Page 95] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 95 4.2.8 MOTOR ASSEMBLY, ASF Removal 1. Remove HOUSING (Refer to Section 4.2.1.) 2. Remove the harness for MOTOR ASSEMBLY, ASF from the main board. (Refer t...

[Page 96] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 96 4.2.9 DE Unit Removal 1. Remove HOUSING (Refer to Section 4.2.2.) 2. Remove MOTOR ASSEMBLY, CR. (See Section 4.2.7.) 3. Remove the Ink Unit. (Refer to Sec...

[Page 97] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 97 8. Remove the tension spring (0.618) attached to the LEVER, DE, LOCK and DE Unit. Figure 4-25. TENSION SPRING, 0.618 Removal 9. Release the hook in the D...

[Page 98] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 98 10. Remove the CBS screw (3x6) and CBP (3x8) screw securing the DE unit to FRAME, MIDDLE and FRAME, TOP, respectively. Then remove DE unit. Figure 4-27. ...

[Page 99] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 99 4.2.10 ASF Unit Removal 1. Remove HOUSING. (Refer to Section 4.2.1.) 2. Remove the following cables from the cable clamp in the left side of the ASF Asse...

[Page 100] Epson Stylus Photo 890

EPSON Stylus Photo 890/1280/1290 Revision C DISASSEMBLY AND ASSEMBLY Disassembly Procedures 100 Figure 4-32. Check Points in ASF Assembly CHECK PO INT n When installing the ASF assembly to FRAME, BOTTOM, make sure the protrusion on the ASF fits in ...