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Epson PH890 Service Manual

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

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Summary of Contents for Epson PH890

  • Page 1 SERVICE MANUAL Color ink jet printer EPSON Stylus PHOTO 890/1290 Stylus PHOTO 890 Stylus PHOTO 1290 ® SEIJ00025...
  • Page 2 SEIKO EPSON CORPORATION. o All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them.
  • Page 3 REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE.
  • Page 4 PREFACE This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of EPSON Stylus PHOTO 890/1290. The instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions on the preceding page.
  • Page 5 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 used, and always read NOTE, CAUTION, or WARNING messages. Indicates an operating or maintenance procedure, practice or condition that is necessary to keep the product’s quality.
  • Page 6 Revision Status Revision Issued Date Description November 16th, 2000 First Release Revision: • page -80: A warning message for static electricity added. December 27th, 2000 • page -81: Caution messages for torque and ink tube position added • page -92& page -94: Caution messages for ink tube installation added. •...

  • Page 7: Table Of Contents

    2.1.4 Paper Loading Mechanism ................ 41 1.2.5 Paper Specifications ................... 15 2.1.4.1 Drive Transmission to the ASF Unit ..........41 1.2.5.1 EPSON Special Media ..............15 2.1.4.2 Paper Loading Operation ..............42 1.2.6 Printing Area ....................17 2.1.4.3 Pump Mechanism ................43 1.2.6.1 Cut Sheet ...................
  • Page 8 3.1.1.4 Remedies for the Paper Jam Error ............. 69 5.2.1 Parallelism Adjustment ................123 3.1.1.5 Remedies for No Ink Cartridge Error/Ink Cartridge Problem ... 70 5.2.1.1 Using PG Adjustment Tool ............. 123 3.1.1.6 Remedies for Maintenance Request Error ......... 70 5.2.1.2 Using Thickness Gauge ..............
  • Page 9 5.4.1.8 Waste Ink Pad Replacement ............154 5.4.1.9 Clogged Nozzle Recovery ............... 154 Chapter 6 MAINTENANCE 6.1 Overview ......................157 6.1.1 Cleaning ....................157 6.1.2 Service Maintenance ................157 6.1.2.1 Head Cleaning ................. 157 6.1.2.2 Maintenance Request Error Clear ........... 157 6.1.3 Lubrication ....................

  • Page 10: Chapter 1 Product Descriptions

    C H A P T E R PRODUCT DESCRIPTIONS...

  • Page 11: Overview

    Revision B 1.1 Overview The EPSON Stylus PHOTO 890 and EPSON Stylus PHOTO 1290 are designed for both home use and office use. As the enhanced models of Stylus Photo 750 and Stylus Photo 1200, they offer greater performance in both print speed and quality.

  • Page 12: Accessories, Consumable Products, And Options

    CD-ROM (Printer driver and utilities) EPSON Photo Quality Self Adhesive Sheet (A4) S041106 CONSUMABLE PRODUCTS EPSON Ink Jet Note Cards A6 (with envelops) S041147 NOTE: The product codes of the ink cartridges may vary by location. EPSON Ink Jet Greeting Cards 5x8” (with envelopes) S041148 NOTE: The availability of special media varies by location.
  • Page 13 EPSON Premium Glossy Photo Paper (Letter) S041288 EPSON Premium Glossy Photo Paper (A3)* S041290 EPSON Premium Glossy Photo Paper (B)* S041289 EPSON Premium Glossy Photo Paper (Super A3/ SuperB)* EPSON Ink Jet Back Light Film (A3)* S041131 OPTIONS Table 1-2. Options Product Name...

  • Page 14: Basic Specifications

    EPSON Stylus PHOTO 890/1290 Revision B 1.2 Basic Specifications Raster Graphic Mode Table 1-4. Raster Graphics Mode Horizontal Printable 1.2.1 Printing Specification Model Available Dot CR Speed Resolution Area Print Method: On demand ink jet 209.8mm/ 180 dpi 1488 23.8/19 IPS 8.26”...

  • Page 15: Paper Specifications

    Keep the longer side of the envelope horizontally at setting. 148 mm x 210 mm 1.2.5.1 EPSON Special Media 148mm x 105 mm EPSON offers specifically- designed media for ink jet printers. 279 mm x 432 Letter 216 mm (8.5”) x 279 mm (11.0”)
  • Page 16 EPSON Stylus PHOTO 890/1290 Revision B 200 x 300mm 216mm x 338mm(cut-line) 360 DPI INK JET PAPER Roll Paper (89mm x 7m, 100mm x 8m, 210mm x 10m, 329mm x 10m Size (Width x Length): 329mm x 483mm 297mm x 420mm...

  • Page 17: Printing Area

    EPSON Stylus PHOTO 890/1290 Revision B 1.2.6 Printing Area PREMIUM GLOSSY PHOTO PAPER Size (Width x Length): 1.2.6.1 Cut Sheet 329mm x 483mm See the figure below and the following tables for the printing area for Stylus PHOTO 297mm x 420mm 890/Stylus PHOTO 1290.

  • Page 18: Envelopes

    EPSON Stylus PHOTO 890/1290 Revision B 1.2.6.2 Envelopes Table 1-6. Printing Area Left Margin Right Margin Top Margin Bottom Margin Paper Size (min.) (min.) (min.) (min.) 3 mm 14 mm (0.54”) / 3 mm (0.12”) 3 mm (0.12”) *1*2 (0.12”) 3mm (0.12”)

  • Page 19: Ink Cartridge

    EPSON Stylus PHOTO 890/1290 Revision B 1.2.8 Ink Cartridge COLOR INK CARTRIDGE Note some of the color ink specifications for the Stylus PHOTO 890 and Stylus BLACK INK CARTRIDGE PHOTO 1290 are different as indicated. The black ink cartridge specifications for Stylus PHOTO 890 and Stylus PHOTO 1290...

  • Page 20: Electric Specification

    EPSON Stylus PHOTO 890/1290 Revision B 1.2.9 Electric Specification 1.2.10 Reliability Total Print Volume Black: 25,000 pages (A4, Letter) 120V VERSION Color: 10,000 pages (A4, Letter) Printhead Life: 3000 million dots/nozzle Rated Voltage: AC120V Input Voltage Range: AC99∼132V Rated Frequency Range: 50∼...

  • Page 21: Environmental Condition

    EPSON Stylus PHOTO 890/1290 Revision B 1.2.11 Environmental Condition RESISTANCE TO SHOCK Operating: 1G, within 1 ms, X, Y, Z directions TEMPERATURE Non-operating: 2G, within 2 ms, X, Y, Z directions Operating: 10 to 35°C : In a shipment container.

  • Page 22: Interface

    EPSON Stylus PHOTO 890/1290 Revision B 1.3 Interface Table 1-9. Parameters Parameter Minimum Maximum The EPSON Stylus PHOTO 890/1290 provides USB and parallel interfaces as tsetup 500ns standard. thold 500ns 1.3.1 Parallel Interface (Forward Channel) tstb 500ns Transmission Mode: 8 bit parallel, IEEE-1284 compatibility mode...
  • Page 23 EPSON Stylus PHOTO 890/1290 Revision B Table 1-11. Signal Level: TTL Compatible (IEEE-1284 level 1 device) Parameter Minimum Maximum Condition VOH* 5.5V VOL* -0.5V IOH* 0.32mA VOH = 2.4V IOL* 12mA VOL = 0.4V 50pF 2.0V 0.8V 0.32mA VIH = 2.0V 12mA VIL = 0.8V...
  • Page 24 EPSON Stylus PHOTO 890/1290 Revision B Table 1-12. Connector Pin Assignment and Signals Return Pin No. Signal Name In/Out Functional Description GND Pin -STROBE The strobe pulse. Read-in of data is performed at the falling edge of this pulse. The DATA0 through DATA7 signals represent data bits 0 to 7, respectively.

  • Page 25: Parallel Interface (Reserve Channel)

    EPSON Stylus PHOTO 890/1290 Revision B 1.3.2 Parallel Interface (Reserve Channel) Transmission Mode: IEEE-1284 nibble mode Handshaking: Refer to the IEEE-1284 specification Adaptable Connector See forward channel. Data Trans. Timing: Refer to the IEEE-1284 specification Synchronization: Refer to the IEEE-1284 specification Signal Level: IEEE-1284 level 1 device (See forward channel.)

  • Page 26: Usb Interface

    EPSON Stylus PHOTO 890/1290 Revision B 1.3.3 USB Interface Device ID: The printer sends the following device ID string when requested. Standard: Based on: When IEEE1284.4 is enabled, “Universal Serial Bus Specifications Rev. 1.1” <00H><5AH> / <00H><5CH> “Universal Serial Bus Device Class Definition for Printing Devices Version 1.1”...

  • Page 27: Prevention Of Data Transfer Time-Out

    EPSON Stylus PHOTO 890/1290 Revision B 1.3.4 Prevention of Data Transfer Time-out An initial state is IEEE1284.4 communication and data that received it by the time Generally, hosts abandon data transfer to peripherals when the peripheral is in the busy it is able to take synchronization by magic string (1284.4 synchronous commands)

  • Page 28: Operations

    EPSON Stylus PHOTO 890/1290 Revision B 1.4 Operations 1.4.3 Panel Functions Table 1-15. Panel Functions 1.4.1 Buttons Buttons Function • Loads or ejects paper. Roll Paper button • Returns a carriage to the home position when the Maintenance button carriage is at the ink cartridge replacement position.

  • Page 29: Special Setting Mode

    EPSON Stylus PHOTO 890/1290 Revision B 1.4.4 Special Setting Mode Table 1-17. Content of 1BH of EEPROM [bit7] [bit6] Actions To enter the special setting mode, press the Maintenance button and the Roll Paper button while turning on the printer until the Power indicator blinks. While it is blinking Prints firmware version, ink counter, selected code (for 3 seconds), press the specified button to activate the desirable setting mode.

  • Page 30: Printer Initialization

    Revision B 1.4.5 Printer Initialization 1.4.6 Initialization Value EPSON Stylus PHOTO 890/1290 executes initialization by using 3 methods When the printer is initialized, it clears the following settings to their initialization mentioned below. values. However, panel setting values, default setting values, and values set by the remote command remain as they are.

  • Page 31: Dimension

    EPSON Stylus PHOTO 890/1290 Revision B 1.5 Dimension EXTERNAL DIMENSION Stylus PHOTO 890 When stored(mm): 471 (W) x 290 (D) x 175 (H) For use(mm): 471 (W) x 613 (D) x 302(H) Stylus PHOTO 1290 When stored(mm): 609(W) x 311(D) x 175 mm (H)
  • Page 32 EPSON Stylus PHOTO 890/1290 Revision B PRODUCT DESCRIPTIONS Dimension...
  • Page 33 EPSON Stylus PHOTO 890/1290 Revision B PRODUCT DESCRIPTIONS Dimension...

  • Page 34: Chapter 2 Operating Principles

    C H A P T E R OPERATING PRINCIPLES...

  • Page 35: Overview

    Photo Interrupter (Encoder) Notched Roller Unlike other EPSON ink jet printers, the EPSON Stylus Photo 890/1290 uses a DC motor as power source. The DC motor enables the printer to lower noise during printing. Table 2-1 shows various motor types used in the printer and their applications.

  • Page 36: Printhead Mechanism

    The printhead mechanism operating principles of the Stylus Photo 890/1290 are CSIC: basically the same as for the previous EPSON ink jet printers. This printer, however, CSIC is a non-volatile memory EEPROM attached to each black and color ink employs a newly developed ink and improved printhead driving method to provide a cartridge.

  • Page 37: Carriage Mechanism

    EPSON Stylus Photo 890/1290 Revision B 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/parallelism adjustment mechanism, carriage lock mechanism, and so on. Photo Coupler CR Motor 2.1.2.1 Carriage Motor (CR Motor)

  • Page 38: Platen Gap (Pg) /Parallelism Adjustment Mechanism

    Therefore, a rotary encoder attached to the left end of the PR roller shaft controls paper feed amount. For detailed information, see Section "PF Unlike previous Epson ink jet printers, the carriage home position is detected with the motor driver circuit".
  • Page 39 EPSON Stylus Photo 890/1290 Revision B Figure 2-4 gives the paper feeding mechanism block diagram, showing the parts along the PF motor drive transmission paths. Paper Eject Roller Combination Gear [Previous Models] (13.5, 308) Printhead PF Roller Platen Surface Support Roller...

  • Page 40: Cr Lock Mechanism

    EPSON Stylus Photo 890/1290 Revision B 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 transportation, user’s mishandling of the printer, and so on. If the carriage unit is left uncapped for a long time, ink on the printhead surface dries gradually and, eventually, ink can not flow to nozzles.

  • Page 41: Paper Loading Mechanism

    EPSON Stylus Photo 890/1290 Revision B 2.1.4 Paper Loading Mechanism 2.1.4.1 Drive Transmission to the ASF Unit 1) The CR unit moves to the right end of the CR shaft, which then pushes the DE The paper loading mechanism loads paper at the ASF unit and feeds paper to the PF lock lever to the right end.

  • Page 42: Paper Loading Operation

    EPSON Stylus Photo 890/1290 Revision B 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 from the paper set position into the paper path, the paper return lever pushes paper that may have fallen off back onto the hopper.

  • Page 43: Pump Mechanism

    EPSON Stylus Photo 890/1290 Revision B 2.1.4.3 Pump Mechanism Torque transmission to the pump unit The torque from the ASF/Pump motor is transmitted to the pump mechanism as The pump mechanism absorbs ink from the printhead and the cap assembly. The wiper described below: for head cleaning is included in the cap assembly.

  • Page 44: Capping Mechanism

    EPSON Stylus Photo 890/1290 Revision B 2.1.4.4 Capping Mechanism The capping mechanism of this printer is a newly designed valveless capping mechanism. So, unlike previous printers, it does not integrates an air valve. The air The capping mechanism, which is driven by the pump unit, caps the printhead closely valve is usually equipped to remove bubbles created inside the cap by releasing the to maintain air tightness inside the cap.

  • Page 45: Electrical Circuit Operating Principles

    EPSON Stylus Photo 890/1290 Revision B 2.2 Electrical Circuit Operating Principles The electric circuit of the Stylus Photo 890/1290 consists of the following: 2.2.1 C378PSB/PSE Board Control circuit board: C393MAIN/C393MAIN-B/C393MAIN-C The power supply board for the Stylus Photo 890 and Stylus Photo 1290 is C378PSB/ PSE.
  • Page 46 EPSON Stylus Photo 890/1290 Revision B Figure 2-12 shows the block diagram for the C378PSB/PSE board. The C378PSB/PSE Board produces the +42VDC and +5VDC using AC power as described below: Regardless of the power switch’s on/off condition, voltage is always applied to the primary side of the power supply board from the moment or at the state that AC- plug is plugged in.

  • Page 47: Protection Circuits

    EPSON Stylus Photo 890/1290 Revision B 2.2.1.2 Protection Circuits 2.2.1.3 Power Supply Control Function The C378PSB/PSE board has the various protection circuits to stop voltage outputs if Since this printer has the power switch in the secondary circuit, even if its power is an abnormal condition relating to the control circuit or the printer mechanism’s duty...

  • Page 48: C393Main Board Circuit Operation Principles

    Revision B 2.2.2 C393MAIN Board Circuit Operation Principles There are three kinds of main board installed on EPSON Stylus Photo 890/1290. Stylus Photo 890 is equipped with either C393MAIN-B or C393MAIN-C while Stylus Photo The C393MAIN board includes the following: 1290 is equipped with either C393MAIN or C393MAIN-B.
  • Page 49 EPSON Stylus Photo 890/1290 Revision B CR Encoder senser CR Encoder senser Head Head Timer & Timer & Reset IC Reset IC (IC4) (IC4) E0BA13KA E0BA13KA Figure 2-14. Block Diagram for the C393MAIN-B Board Figure 2-15. Block Diagram for the C393MAIN-C Board...
  • Page 50 EPSON Stylus Photo 890/1290 Revision B Table 2-16 shows the major ICs on the C393MAIN Board and their functions. Table 2-16. Major Element on C393MAIN Location Functions A 144-pin QFP package. Operates at 24.0MHz. Power supply voltage is 3.3V. CPU (HD6412670) •...

  • Page 51: Printhead Driver Circuit

    See Figure 2-16 for be transferred to the nozzle selector IR2C95F (Sharp) or SED6125T0A (EPSON) the printhead driver circuit block diagram.

  • Page 52: Rtc (Real Time Clock)/ Reset/ Eeprom Circuit

    EPSON Stylus Photo 890/1290 Revision B 2.2.2.2 RTC (Real Time Clock)/ Reset/ EEPROM Circuit +42V line reset circuit The VIN port of the IC5 reset IC monitors the +45V line. When the IC detects an RTC9822**includes built-in RTC and EEPROM and functions as a reset. The RTC abnormal voltage level (36V or lower), it outputs a reset signal from the VDT port part has an electric two-layer condenser for backup.

  • Page 53: Motor Driver Circuit

    EPSON Stylus Photo 890/1290 Revision B 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 ASF/Pump motor, and a stepping motor. The DC motor on the C393MAIN board is used for DC motor control.
  • Page 54 EPSON Stylus Photo 890/1290 Revision B 1/180” 1/720” Phase A 1/360” Backward Rotation Phase B (Counterclockwise) Forward Rotation Phase A (Clockwise) Phase B Lens Photo Photo Comparators Comparators Diodes Diodes Phase A Phase B Figure 2-20. CR Motor Driver Circuit Block Diagram (C393MAIN-C) Figure 2-21.
  • Page 55 EPSON Stylus Photo 890/1290 Revision B ASIC(IC19) detects the motor control current value is 720mA. P1 (= number of pulses output during the above carriage movement) is 1/180” 30* or less. * Specified value that indicates CR is in the home position. (All edges in the...
  • Page 56 EPSON Stylus Photo 890/1290 Revision B 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 and PFDC motor while IC9(A3958SLB) on the C393MAIN-C board controls the CR motor.
  • Page 57 EPSON Stylus Photo 890/1290 Revision B 1/1440” 1/5760“ Phase A Forward Rotation Phase B (Clockwise) Backward Rotation Phase A (Counterclockwise) Phase B Lens Photo Photo Comparators Comparators Diodes Diodes Phase A Phase B Figure 2-25. PF Motor Driver Circuit Block Diagram (C393MAIN-C) op25 ASIC(IC19)controls paper feeding amount by referring to the encoder pulses.

  • Page 58: Asf/Pump Motor Driver Circuit

    EPSON Stylus Photo 890/1290 Revision B 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: Figure 2-27. ASF/Pump Motor Circuit Block Diagram Figure 2-28. ASF/Pump Motor Circuit Block Diagram...

  • Page 59: Sensor Circuit

    EPSON Stylus Photo 890/1290 Revision B 2.2.2.5 Sensor Circuit Stylus Photo 890/1290 has the following five sensors to detect printer’s status. PE sensor ASF sensor Ink cartridge sensor (CSIC connector on the head board) Head thermistor sensor PF motor encoder...
  • Page 60 EPSON Stylus Photo 890/1290 Revision B Each sensor’s functions and operating principles are as described below: resolution of the sensor is 1/180 inch. It outputs HIGH signals for the black bands and LOW signals for the transparent parts of the linear scale to the ASIC. The PE sensor printer controls the CR motor based on the signals output from this sensor.
  • Page 61 EPSON Stylus Photo 890/1290 Revision B OPERATING PRINCIPLES Electrical Circuit Operating Principles...

  • Page 62: Chapter 3 Troubleshooting

    C H A P T E R TROUBLESHOOTING...

  • Page 63: Overview

    Revision B EPSON Stylus Photo 890/1290 3.1 Overview Table 3-1. Motor Resistance and Measurement Procedure This chapter describes how to troubleshoot problems. It consists of the sections shown in the flowchart below. When identifying and troubleshooting problems, be sure to...

  • Page 64: Self-Diagnostic Function

    EPSON Stylus Photo 890/1290 3.1.1 Self-Diagnostic Function Table 3-3. Error Indication of Operation Panel Indicators The EPSON Stylus PHOTO 890/1290 is equipped with the self-diagnostic function. Printer Status Priority With this function, the printer can check its operations after power-on, and shows its...
  • Page 65 Revision B EPSON Stylus Photo 890/1290 Paper Jam The printer fails to eject remaining paper with the specified number of paper feeding steps at power-on. The printer can not eject paper despite the FF command is sent or Load/Eject button is pressed.

  • Page 66: Remedies For Paper Out Error

    Revision B EPSON Stylus Photo 890/1290 Table 3-4. Error Condition and Possible Causes Error Possible Causes Refer to: Paper Out 1. Failure in paper loading Table 3-5 2. PE sensor connector is disconnected. 3. Sensor actuator is not acting properly or sensor bracket is not installed correctly.
  • Page 67 Revision B EPSON Stylus Photo 890/1290 NOTE: If the exhibited problem is similar to a problem listed under “Problem”, take the Table 3-5. Remedies for Paper Out Error actions in the right column. If not, proceed to the next step.
  • Page 68 Revision B EPSON Stylus Photo 890/1290 Table 3-5. Remedies for Paper Out Error (continued) Step Problem Check & Actions 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:...

  • Page 69: Remedies For The Paper Jam Error

    Revision B EPSON Stylus Photo 890/1290 3.1.1.4 Remedies for the Paper Jam Error Table 3-6. Remedies for Paper Jam Error Step Problem Check & Actions This section includes the checkpoints and actions to take to troubleshoot the Paper Jam error when it occurs during paper feeding or after the printer is turned on.

  • Page 70: Remedies For Maintenance Request Error

    Revision B EPSON Stylus Photo 890/1290 NOTE: If the exhibited problem is similar to a problem listed under “Problem”, take the 3.1.1.6 Remedies for Maintenance Request Error actions in the right column. If not, proceed to the next step. If the printer is in this error condition, it stops all operations, including data transfer, except for specified control panel functions.

  • Page 71: Remedies For Fatal Error

    Revision B EPSON Stylus Photo 890/1290 3.1.1.7 Remedies for Fatal Error Table 3-9. Remedies for Fatal Error A fatal error is basically caused by any of the following conditions: Step Problem Check & Actions The printer fails to detect the CR home position.
  • Page 72 Revision B EPSON Stylus Photo 890/1290 Table 3-9. Remedies for Fatal Error (continued) Table 3-9. Remedies for Fatal Error (continued) Step Problem Check & Actions Step Problem Check & Actions Ditto Turn the printer on and check for the correct voltages at...
  • Page 73 Revision B EPSON Stylus Photo 890/1290 Table 3-9. Remedies for Fatal Error (continued) Table 3-9. Remedies for Fatal Error (continued) Step Problem Check & Actions Step Problem Check & Actions The printer is turned on Measure the coil resistance of the PF motor using a meter...

  • Page 74: Isolating The Faulty Part On The Power Supply Board

    Revision B EPSON Stylus Photo 890/1290 3.1.2 Isolating the Faulty Part on the Power Supply Board 3.1.3 Isolating the Faulty Part according to the Phenomenon This section explains how to troubleshoot the following problems: Refer to this section if you could not solve the problem in Section 3.1.1.1 or Section The printer is turned on but it does not perform initialization and no LED 3.1.2 or need more information to isolate the cause according to the exhibited...
  • Page 75 Revision B EPSON Stylus Photo 890/1290 Table 3-12. CR Motor does not Work Table 3-13. PF Motor does not Work Step Checkpoint Action Step Checkpoint Action Getting ready for Using an oscilloscope, check the outputwaveform at CN14 Getting ready for...
  • Page 76 Revision B EPSON Stylus Photo 890/1290 Table 3-15. Cleaning Does not Solve the Problem Table 3-14. ASF/Pump Motor does not Work Step Checkpoint Action Step Checkpoint Action Run the head cleaning Run the head cleaning by pressing the Cleaning button.
  • Page 77 Revision B EPSON Stylus Photo 890/1290 Table 3-15. Cleaning Does not Solve the Problem (continued) Step Checkpoint Action Check if the Check if the compression spring is correctly assembled compression spring has in the cap unit as shown below. come off the cap unit.
  • Page 78 Revision B EPSON Stylus Photo 890/1290 Table 3-15. Cleaning Does not Solve the Problem (continued) Table 3-15. Cleaning Does not Solve the Problem (continued) Step Checkpoint Action Step Checkpoint Action Check if the head FFCs Remove the head FFC holder from the CR unit, and...

  • Page 79: Chapter 4 Disassembly And Assembly

    C H A P T E R DISASSEMBLY AND ASSEMBLY...

  • Page 80: Overview

    This chapter describes procedures for disassembling the main components of the section when disassembling or assembling EPSON Stylus Photo 890/1290. EPSON Stylus Photo 890/1290. Unless otherwise specified, disassembly units or components can be reassembled by reversing the disassembly procedure. Therefore, no Disconnect the power cable before disassembling or assembly procedures are included in this chapter.

  • Page 81: Tools

    EPSON Stylus Photo 890/1290 Revision B 4.1.2 Tools Never remove the ink cartridge from the carriage unless C A U T I O N Table 4-1 lists the tools recommended for disassembling, assembling, or adjusting the this manual specifies to do so.

  • Page 82: Specifications For Screws

    EPSON Stylus Photo 890/1290 Revision B 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 locations, referring to the table below. Table 4-2. Screw Specifications...

  • Page 83: Service Checks After Repair

    EPSON Stylus Photo 890/1290 Revision B 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 more efficiently. Table 4-3. Inspection Checklist for Repaired Printer...

  • Page 84: Disassembly Procedures

    EPSON Stylus Photo 890/1290 Revision B 4.2 Disassembly Procedures The flowchart below shows procedures for disassembly. START START HOUSING Removal Circuit Board Printhead Unit MOTOR ASSEMBLY, Carriage Unit ASF Unit Removal Assembly Removal Removal ASF Removal Removal MOTOR ASSEMBLY, SHAFT, ROLLER,...

  • Page 85: Housing Removal

    EPSON Stylus Photo 890/1290 Revision B 4.2.1 HOUSING Removal Since the printer mechanism itself structures the bottom part, it appears just by removing HOUSING. Open the printer cover and set the PG adjustment lever to (+). Remove the four screws (CBS, 3x10) securing HOUSING, and remove it.

  • Page 86: Circuit Board Assembly Removal

    EPSON Stylus Photo 890/1290 Revision B 4.2.2 Circuit Board Assembly Removal Disconnect all cables from the connectors on the main board and power supply board. Since BOARD ASSEMBLY, MAIN and BOARD ASSEMBLY, POWER SUPPLY CN1(AC Source connector on the power supply board) are built in a bracket separated from the Printer Mechanism, they can be removed as one unit.
  • Page 87 EPSON Stylus Photo 890/1290 Revision B C378PSB/PSE Since the CN10 is a locking connector, be sure to unlock it C A U T I O N Board before disconnecting the cables. CBS (3x6) C393MAIN Board Since the head FFCs have the same number of pins, be sure to connect them to the right connectors.

  • Page 88: Panel Unit Removal

    EPSON Stylus Photo 890/1290 Revision B 4.2.3 Panel Unit Removal C H E C K When installing SHIELD PLATE, M/B to the printer Remove HOUSING. (Refer to Section 4.2.1.) P O I N T mechanism, set the cables, COVER CABLE, and COVER, Remove the harness for the Panel Unit from the frame in the printer mechanism.
  • Page 89 EPSON Stylus Photo 890/1290 Revision B Remove 1 screw (CBP, 3x8) securing Panel Unit to the printer mechanism and Remove 2 screws (CBP, 3x8) securing SHIELD PLAT, PANEL to the Panel Unit, release the pins fit in the printer mechanism.

  • Page 90: Printhead Unit Removal

    EPSON Stylus Photo 890/1290 Revision B 4.2.4 Printhead Unit Removal Remove HOUSING. (Refer to Section 4.2.1.) HEAD Set the PG lever to the rear. CBP (3x6) Using tweezers, put the CR lock lever down to unlock the carriage. Release the three hooks (A, B, C) fixing HOLDER, CABLE to the carriage, and remove HOLDER, CABLE.

  • Page 91: Tray, Absorber Assembly Removal

    EPSON Stylus Photo 890/1290 Revision B 4.2.5 TRAY, ABSORBER ASSEMBLY Removal Remove 2 screws (CBS, 3x6) securing HOUSING, SUB, LEFT to the printer mechanism. Remove HOUSING. (Refer to Section 4.2.1.) Release 3 hooks (2 at the bottom and 1 in the front) fixing HOUSING, SUB, LEFT to the printer mechanism, and remove HOUSING, SUB, LEFT.
  • Page 92 EPSON Stylus Photo 890/1290 Revision B Removing 1 screw (CBP, 3x8) securing TRAY, ABSORBER ASSEMBLY to the right part of the printer mechanism. 10. Remove SPACER, TRAY securing TRAY, ABSORBER to the left side of the printer mechanism, and then remove TRAY, ABSORBER by moving it downward.

  • Page 93: Ink Unit Removal

    EPSON Stylus Photo 890/1290 Revision B 4.2.6 Ink Unit Removal NOTE: Ink Unit consists of the Pump Unit, Cleaner Head, and Cap Assembly. FRAME, MIDDLE CBS (3x6) Remove HOUSING. (Refer to Section 4.2.1.) FRAME, TOP Remove the Panel Unit. (Refer to Section 4.2.3.) Remove SHEET, INK STOPPER.
  • Page 94 EPSON Stylus Photo 890/1290 Revision B When handling CLEANER, HEAD, note the points below: C A U T I O N Do not touch CLEANER, HEAD with your bare hands. Ware gloves or use tweezers. Do not smear CLEANER, HEAD with oil or grease.
  • Page 95 EPSON Stylus Photo 890/1290 Revision B Tube is not stretched out. Tube is not bent. Figure 4-17. Ink Tube Installation (2) Pump Unit Marking line on the tube 2 mm Figure 4-18. Connecting the Tube to the Pump Unit DISASSEMBLY AND ASSEMBLY...

  • Page 96: Motor Assembly, Cr Removal

    EPSON Stylus Photo 890/1290 Revision B 4.2.7 MOTOR ASSEMBLY, CR Removal Remove HOUSING. (Refer to Section 4.2.1) Using tweezers or a small screw driver, put the carriage lock lever down to the MOTOR ASSEMBLY, CR front, and then slide the carriage to the middle of the printer mechanism.

  • Page 97: Motor Assembly, Asf Removal

    EPSON Stylus Photo 890/1290 Revision B 4.2.8 MOTOR ASSEMBLY, ASF Removal BRACKET, MOTOR, ASF Remove HOUSING (Refer to Section 4.2.1.) Remove the harness for MOTOR ASSEMBLY, ASF from the main board. (Refer to Section 4.2.2.) Lower LEVER, PLANETARY UNIT. MOTOR ASSEMBLY, ASF...

  • Page 98: Unit Removal

    EPSON Stylus Photo 890/1290 Revision B 4.2.9 DE Unit Removal Remove MOTOR, CR. (Refer to Section 4.2.7.) Loosen 1 (CBS, 3x6) securing the LEVER ASSEMBLY, COMBINATION Remove HOUSING (Refer to Section 4.2.2.) GEAR to FRAME, MIDDLE. Remove MOTOR ASSEMBLY, CR. (See Section 4.2.7.) Remove the tension sprig (7.37) hung to FRAME MIDDLE and LEVER...
  • Page 99 EPSON Stylus Photo 890/1290 Revision B Remove the tension spring (0.618) attached to the LEVER, DE, LOCK and DE Release the hook in the DE Unit (BRACKET, MOTOR, ASF) securing LEVER, Unit. DE, LOCK. Then push the lever out to the right to release it from the installation hole in the DE Unit and remove it.
  • Page 100 EPSON Stylus Photo 890/1290 Revision B 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. Check that all gears are assembled in the DE unit correctly as...

  • Page 101: Asf Unit Removal

    EPSON Stylus Photo 890/1290 Revision B 4.2.10 ASF Unit Removal Remove HOUSING. (Refer to Section 4.2.1.) Remove the following cables from the cable clamp in the left side of the ASF Assembly. ASF HP sensor cable MOTOR ASSEMBLY, PF cable Disconnect the ASF HP sensor cable from the connector on the sensor.
  • Page 102 EPSON Stylus Photo 890/1290 Revision B When installing the ASF assembly to FRAME, BOTTOM, make When connecting the cables for ASF HP sensor and MOTOR C H E C K C H E C K sure the protrusion on the ASF fits in the installation hole in...

  • Page 103: Shaft, Roller, Ld Removal

    EPSON Stylus Photo 890/1290 Revision B 4.2.10.1 SHAFT, ROLLER, LD Removal Remove the ASF Unit. (Refer to Section 4.2.10.) BUSHING, FIXING, Releasing the hook on Gear, 32, remove the gear from SHAFT, ROLLER, LD. SHAFT, LEFT E-Ring HOLDER, SHEET, PAPER FEED...
  • Page 104 EPSON Stylus Photo 890/1290 Revision B Release the Hopper Assembly from the pin in the top left corner of ASF, FRAME; 10. Using tweezers, remove the left and right compression springs (1.961) from the B in the order indicated with arrows in the figure below.
  • Page 105 EPSON Stylus Photo 890/1290 Revision B WHEEL LEVER, HOPPER, RELEASE DETECTOR Hopper Assembly BUSHING, FIXING, SHAFT, LEFT FRAME, ASF;B COMPRESSION SPRING, 1.961 Left LD Roller Assembly SHAFT, ROLLER, LD LEVER, HOPPER, RELEASE COMPRESSION Gear, 32 SPRING, 1.961 Right LD Roller Assembly Figure 4-38.
  • Page 106 EPSON Stylus Photo 890/1290 Revision B While assembling the ASF Unit, be careful not to smear any C H E C K parts with oil on the cam parts. If oil gets other parts, it should P O I N T be wiped off.
  • Page 107 EPSON Stylus Photo 890/1290 Revision B When installing the edge guide to the left LD Roller Assembly, C H E C K ensure that the rib in the LD Roller Assembly fits correctly into P O I N T the groove in the edge guide. (See Figure 4-41.) Make sure that the right LD Roller Assembly is fixed with the Hook in the FRAME, ASF;...

  • Page 108: Roller Assembly, Ld, Right/Left Removal

    EPSON Stylus Photo 890/1290 Revision B 4.2.10.2 ROLLER ASSEMBLY, LD, RIGHT/LEFT Removal Remove the ASF Unit. (Refer to Section 4.2.10.) Compression Remove SHAFT, ROLLER, LD. (Refer to Section 4.2.10.1.) Spring, 1.961 COVER, Release the hooks in COVER, ROLLER, LD, RIGHT/LEFT (two hooks in each)

  • Page 109: Carriage Unit Removal

    EPSON Stylus Photo 890/1290 Revision B 4.2.11 Carriage Unit Removal Push PULLEY, DRIVEN down and remove it from HOLDER, PULLEY, DRIVEN. Remove HOUSING. (Refer to Section 4.2.1) Disconnect the head FFC from the printhead. (Refer to Section 4.2.4.) Remove the Tension Spring 1.494 hanging SCALE, CR to the left side of HOLDER, PULLEY, FRAME, TOP.
  • Page 110 EPSON Stylus Photo 890/1290 Revision B Remove the torsion spring (63.7) hung onto FRAME, TOP and LEVER, PG. Notch in BUSHING, FRAME, TOP PARALLELISM ADJUSTMENT, CBS Tite Sems R2 BUSHING, PARALLELISM ADJUSTMENT, RIGHT Leaf Spring LEVER, PG, SUB TORSION SPRING, 63.7 Figure 4-50.

  • Page 111: Board Assembly, Encoder Removal

    EPSON Stylus Photo 890/1290 Revision B 4.2.12 BOARD ASSEMBLY, ENCODER Removal When installing the Leaf Spring (6.2x 0.15x11), set it with its C H E C K Remove the head FFC. (Refer to Section 4.2.4.) convex side facing inward. Refer to Figure 4-49.

  • Page 112: Roller, Pf Removal

    EPSON Stylus Photo 890/1290 Revision B 4.2.13 ROLLER, PF Removal Remove PAPER GUIDE, RIGHT Unit and the five PAPER GUIDE, UPPER Unit (eight for Stylus Photo 1290) from FRAME, TOP in the manner described below: Remove HOUSING. (Refer to Section 4.2.1) PAPER GUIDE, UPPER Unit Remove the Panel Unit.
  • Page 113 EPSON Stylus Photo 890/1290 Revision B Remove the three screws (CBS, 3x6) securing FRAME, TOP to the printer 11. Remove PAPER GUIDE, FRONT from ROLLER, PF by releasing its two U- mechanism. Then remove FRAME, TOP. shaped forks fixing ROLLER, PAPER EJECT.
  • Page 114 EPSON Stylus Photo 890/1290 Revision B 13. Raise 2 bushings (6) attached to the right and left ends of ROLLER, PAPER 16. Unhook BUSHING, 12, LEFT attached to the left end of ROLLER, PF and then EJECT to release them from FRAME, LEFT and FRAME, MIDDLE. Them turn the bushing until it is aligned with the cutout in FRAME, LEFT.

  • Page 115: Scale, Pf Installation

    EPSON Stylus Photo 890/1290 Revision B 4.2.13.1 SCALE, PF Installation When installing PAPER GUIDE, RIGHT to FRAME, TOP C H E C K This section describes how to install the following parts: with the torsion spring, insert PAPER GUIDE, RIGHT Unit...
  • Page 116 EPSON Stylus Photo 890/1290 Revision B Set SCALE, PF onto BRACKET, SCALE with its front side facing downward. Remove the base sheet of TAPE, D50 and stick it to SCALE, PF. Protection Sheet TAPE, D50 Set the scale’s front side Protection Sheet facing downward.
  • Page 117 EPSON Stylus Photo 890/1290 Revision B Fit the round cutouts in SCALE, PF to the protrusions on SPUR GEAR (76) making sure the scale and the gear are parallel. But note you don’t attach the scale Check that the protrusions on the gear (76) are sticking out C H E C K to the gear yet.

  • Page 118: Motor Assembly, Pf Removal

    EPSON Stylus Photo 890/1290 Revision B 4.2.14 MOTOR ASSEMBLY, PF Removal Remove 1 screw (CBS, 3x6), plane washer (3.3x0.5x8), and SCREW, MOUNTING, PF that are securing MOTOR ASSEMBLY, PF to FRAME, LEFT. Remove HOUSING. (Refer to Section 4.2.1) Then remove MOTOR ASSEMBLY, PF.

  • Page 119: Pe Sensor Unit Removal

    EPSON Stylus Photo 890/1290 Revision B 4.2.15 PE Sensor Unit Removal Remove HOUSING. (Refer to Section 4.2.1) Remove the ASF Unit. (Refer to Section 4.2.10.) Remove the DE Unit. (Refer to Section 4.2.9.) Remove PAPER GUIDE, RIGHT Unit. (Refer to Section 4.2.13.) Remove the timing belt.

  • Page 120: Chapter 5 Adjustment

    C H A P T E R ADJUSTMENT...

  • Page 121: Overview

    EPSON Stylus Photo 890/1290 Revision B 5.1 Overview The table below lists the type of repair and required adjustments in the order to be made. This chapter describes adjustments required if the printer is disassembled and assembled for repair or service.

  • Page 122: Adjustment Tools

    EPSON Stylus Photo 890/1290 Revision B 5.1.2 Adjustment Tools The table below shows adjustment tools you need for servicing the Stylus Photo 890/ 1290. Table 5-3. Adjustment Tools Tool Type of adjustment Specifications Thickness Gauge Parallelism Adjustment Thickness: 1.14 mm...

  • Page 123: Adjustment

    EPSON Stylus Photo 890/1290 Revision B 5.2 Adjustment 5.2.1.1 Using PG Adjustment Tool Install the right and left Parallel Adjustment Bushings to the printer mechanism by This section explains the procedure for each adjustment. aligning their marks with the notches on the frames.
  • Page 124 EPSON Stylus Photo 890/1290 Revision B Move the Carriage to the center of the printer mechanism. Put the PG adjustment tool right on the rightmost rib of Paper Guide Front. To move the Carriage Unit, pull the timing belt with your hand.
  • Page 125 EPSON Stylus Photo 890/1290 Revision B Perform the PG adjustment to the left side. Move the Carriage to the center of the printer mechanism. Put the PG adjustment tool right on the leftmost rib of Paper Guide Front. C H E C K...

  • Page 126: Using Thickness Gauge

    EPSON Stylus Photo 890/1290 Revision B 5.2.1.2 Using Thickness Gauge Using the PG adjustment tool is the best way to adjust the PG (Platen Gap) as accurate To move the carriage unit, pull the timing belt with your hand. C H E C K as possible.

  • Page 127: Backlash Adjsutment

    EPSON Stylus Photo 890/1290 Revision B 5.2.2 Backlash Adjsutment Before you begin, make sure the following parts are removed: COMBINATION GEAR, 13.5, 30 This section describes Backlash Adjsutment that is to be made after removing the PF motor. This adjustment provides an appropriate backlash ( 0.1 mm or less) for PF...
  • Page 128 EPSON Stylus Photo 890/1290 Revision B Loosen the screw (CBS, 3x6) securing the PF motor assembly to the left frame by Press the gear 76 by the point 2 and release it again to ensure it returns to its rotating it half.

  • Page 129: Adjustment Program Feature

    EPSON Stylus Photo 890/1290 Revision B 5.2.3 Adjustment Program Feature This adjustment program, which is available for both Stylus Photo 890 and Stylus Photo 1290, consists of two independent main programs; Individual Adjustment Program and Sequential Repair Program. The basic adjustment items you can perform...

  • Page 130: How To Install The Program

    While you are running the service program on Windows 95, you C A U T I O N can not use EPSON Status Monitor. Therefore, close the printer window on the task bar before you start the program. If you can not start the program because LPT1 is set to ECP Printer Port, turn it off in the order below: 1.
  • Page 131 EPSON Stylus Photo 890/1290 Revision B Model Name (Stylus Photo 890/1290) Select Port. Port Selection (LPT1/2/3) Destination (World only for Stylus Photo 890, World/EAI for Stylus Photo 1290) Program Type (Individual Adjustment Program/ Sequential Repair Service Program) When you start the service program, the initial window appears: Figure 5-11.

  • Page 132: Individual Adjustment Program

    EPSON Stylus Photo 890/1290 Revision B 5.3.1.1 Head ID Input Select Program Type. The Head ID is written to the EEPROM on the Main Board with this function. Start the program and input all the required information on the initial window.
  • Page 133 EPSON Stylus Photo 890/1290 Revision B The following message appears on the window and the Head ID Input is completed. Figure 5-16. Head ID Input Completed When you exit this window, click Quit. The exit window appears. Click Quit and the program is closed.

  • Page 134: Head Id Check

    EPSON Stylus Photo 890/1290 Revision B 5.3.1.2 Head ID Check The Head ID Adjustment window appears. Select Check Head ID and click You can find the Head ID on the following units. Where to Find the Head ID The 13 digit Head ID is written on the label inside the printhead.

  • Page 135: Bi-Directional Adjustment

    EPSON Stylus Photo 890/1290 Revision B To exit or continue the program, refer to Figure 5-17.“Exit Window” on The Bi-Directional Adjustment window appears. Select Print Bi-D Adjustment page -133. Pattern and click The Head ID Input to EEPROM is not effective until the printer is C A U T I O N next turned on.
  • Page 136 EPSON Stylus Photo 890/1290 Revision B The Bi-Directional Adjustment patterns are printed as follows. During the adjustment printing, using the track bar is recommended for the second or later test printing to save paper. The track bar can be set to 8 levels. For the second printing, however, setting the bar to the right end is recommended.

  • Page 137: Input Bi-D Adjustment Value

    EPSON Stylus Photo 890/1290 Revision B The following message appears on the window and the Bi-Directional The Bi-Directional Adjustment window appears. Select Input Bi-D Adjustment Adjustment Pattern Printing is completed. Value and click Figure 5-27. Bi-Directional Adjustment Window Figure 5-26. Bi-Directional Adjustment Pattern Printing Completed The Input Bi-D Adjustment Value window appears and the current Bi-D To exit or continue the program, click Quit on the lower left.

  • Page 138: Check Present Adjustment Data

    EPSON Stylus Photo 890/1290 Revision B When you adjust the setting values, make sure that the Bi-D gap becomes less than To exit or continue the program, click Quit on the lower left. Refer to Figure 60 µ m. 5-17.“Exit Window” on page -133.

  • Page 139: Input/Check Usb Id

    EPSON Stylus Photo 890/1290 Revision B 5.3.3 Input/Check USB ID Click OK and the present adjustment values are displayed. You are required to perform Input USB ID whenever you replace the main board. The Stylus Photo 890/1290 is equipped with the USB interface as standard. In the Windows 98 or iMAC environment, the USB port driver controls its device using the USB ID stored in EEPROM.

  • Page 140: Input Usb Id

    EPSON Stylus Photo 890/1290 Revision B 5.3.3.1 Input USB ID To exit or continue the program, click Quit on the lower left. Refer to Figure 5-17.“Exit Window” on page -133. Start the program and input all the required information on the initial window.

  • Page 141: Maintenance

    EPSON Stylus Photo 890/1290 Revision B 5.3.4 Maintenance A present USB ID is displayed. 5.3.4.1 Head Cleaning Operation Head Cleaning is more powerful than the head cleaning performed by pressing the cleaning button. It is effective when a dot missing problem occurs.

  • Page 142: Ink Charge Operation

    EPSON Stylus Photo 890/1290 Revision B 5.3.5 Ink Charge Operation When the cleaning is completed, the following message appears on the window. If the Head Cleaning is not powerful enough to solve the dot missing problem, perform Ink Charge that consumes more ink.

  • Page 143: Refurbishment For Doa

    EPSON Stylus Photo 890/1290 Revision B 5.3.6 Refurbishment for DOA The following message appears. After replacing both black and color I/Cs with new ones, click Yes. The printer begins the ink charge operation. This function is used when the cavity of the printhead and cap assembly needs to be cleaned.
  • Page 144 EPSON Stylus Photo 890/1290 Revision B Select Refurbishment for DOA from the main menu and click OK. Figure 5-42. Transportation Liquid Exchange Window Click OK and the Transportation Liquid Exchange Operation will start. Figure 5-43. Transportation Liquid Exchange Operation To exit or continue the program, click Quit on the lower left. Refer to Figure 5-17.“Exit Window”...

  • Page 145: Protection Counter

    EPSON Stylus Photo 890/1290 Revision B 5.3.7 Protection Counter The Check the Protection Counter window appears. Click OK, and the current protection counter value will be displayed. This function enables you to check the current value for the protect counter A. The protect counter A monitors the level of waste ink flown into the waste ink absorber.
  • Page 146 EPSON Stylus Photo 890/1290 Revision B The Protection Counter Maintenance window appears. Select Clear the The following message is displayed. After replacing the Waste Ink Pad with a new Protection Counter Value and click OK. one, click (Y). Figure 5-48. Waste Ink Pad Replacement Massage The protection counter is cleared and the following message is displayed.

  • Page 147: Appendix Items

    EPSON Stylus Photo 890/1290 Revision B 5.3.8 Appendix Items Select the necessary item and click OK. (e.g. Black Ink Cartridge Unique Information is selected here). If you need all of the information listed on the window, select Print Out All 5.3.8.1 CSIC Information...

  • Page 148: Eeprom Data Check

    EPSON Stylus Photo 890/1290 Revision B 5.3.8.2 EEPROM Data Check The information of the designated address is displayed as follows. Start the program and input all the required information on the initial window. Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial Setting”...

  • Page 149: A4 Check Pattern Printing

    EPSON Stylus Photo 890/1290 Revision B The the EEPROM Data window appears. Select Change the EEPROM Data. When the EEPROM data is changed, a new address and data is displayed at the lower left. Figure 5-56. EEPROM Data Selection Figure 5-58. EEPROM Data Change Completed Input the EEPROM address and data needs to be changed and click OK.
  • Page 150 EPSON Stylus Photo 890/1290 Revision B The Check Pattern Printing window appears. Select A4 Normal Paper When the printing is completed, the following message is displayed on the Printing. window. Figure 5-61. A4 Normal Paper Printing Completed Figure 5-59. A4 Normal Printing Selection To exit or continue the program, click Quit on the lower left on the window.

  • Page 151: Sequential Repair Adjustment Program

    EPSON Stylus Photo 890/1290 Revision B 5.4 Sequential Repair Adjustment Program 5.4.1.1 How to start the program Start the program and input all the required information on the initial window. This program is common for both Stylus Photo 890 and Stylus Photo 1290.
  • Page 152 EPSON Stylus Photo 890/1290 Revision B 5.4.1.2 Printhead Removal When the Head Cleaning is completed, the following message is displayed on the window. When you remove the printhead and reinstall it, select this function and execute the operations following the procedures below.
  • Page 153 EPSON Stylus Photo 890/1290 Revision B 5.4.1.3 Printhead Replacement When the Bi-D pattern printing is finished, the following message is displayed. Click Complete. Replace the printhead with a new one. Select Printhead Replacement from the main menu. The Head ID window appears. Input a 13-digit Head ID and click OK.
  • Page 154 EPSON Stylus Photo 890/1290 Revision B 5.4.1.8 Waste Ink Pad Replacement Execute Nozzle Check. Refer to 5.4.1.9“Clogged Nozzle Recovery” on page -154. When you replace the Waste Ink Pad with a new one, the protector counter needs to be Execute Bi-D Adjustment. Refer to 5.3.2“Bi-Directional Adjustment” on cleared.
  • Page 155 EPSON Stylus Photo 890/1290 Revision B The second or third test printing patterns are printed as follows. The Second Nozzle Check Pattern starts from here. The Third Nozzle Check Pattern starts from here. Figure 5-72. Second/Third Nozzle Check Pattern Printing Sample When the Nozzle functions properly, click Complete.

  • Page 156: Chapter 6 Maintenance

    C H A P T E R MAINTENANCE...

  • Page 157: Overview

    Revision B EPSON Stylus Photo 890/1290 6.1 Overview 6.1.2 Service Maintenance If print irregularity (missing dot, white line, etc.) has occurred or the printer indicates This section describes points and procedures for maintaining the printer in its optimum “Maintenance Error”, take the following actions to clear the error.

  • Page 158: Lubrication

    Revision B EPSON Stylus Photo 890/1290 6.1.3 Lubrication Replacement procedure: Refer to Section 4.2.5. The type and amount of oil and grease used to lubricate the printer parts are determined Operation after replacement: based on the results of internal evaluations. Therefore, be sure to apply the specified Perform “Waste ink counter reset”.
  • Page 159 Revision B EPSON Stylus Photo 890/1290 Table 6-2. Lubrication Point (continued) Table 6-2. Lubrication Point Lubricant Type & Lubricant Type & Lubrication Point Refer to: Lubrication Point Refer to: Amount Amount FELT, D3.6 for COMBINATION GEAR O-12 Page 163 COMBINATION GEAR, 12, 22.92,...
  • Page 160 Revision B EPSON Stylus Photo 890/1290 Table 6-2. Lubrication Point (continued) Table 6-2. Lubrication Point (continued) Lubricant Type & Lubricant Type & Lubrication Point Refer to: Lubrication Point Refer to: Amount Amount Contact areas for ROLLER, PF and G-26 Page 164 LD Roller Assy hole in the FRAME, ASF;...
  • Page 161 Revision B EPSON Stylus Photo 890/1290 HOLDER, PULLEY, DRIVEN G-26 G-26 COMBINATION GEAR, 12,22.9 G-26 G-26 G-26 Figure 6-3. Holder, Pulley, Driven Figure 6-1. Lever Assy, Combination Gear, 12,22.92 G-26 Figure 6-2. Bushing, 12, Right MAINTENANCE Overview...
  • Page 162 Revision B EPSON Stylus Photo 890/1290 G-26 LEVER, CR, LOCK E RING, 4, F/UC BUSHING, 6 U-TYPE SPRING, 5.2X0.13X10,S/Na BUSHING, 12, LEFT ROLLER, ASSY, EJECT G-26 PLAIN WASHER, 5.1X0.7X11,S/Na SHAFT, CR, GUIDE BUSHING, 6 G-26 G-26 BUSHING, 12, LEFT Figure 6-5. Bushing, 6 Figure 6-4.
  • Page 163 Revision B EPSON Stylus Photo 890/1290 SHAFT, PULLEY, DRIVEN FELT, D3.6 G-26 COMBINATION FELT, D3.6 O-12 GEAR, 12, 22.4 O-12 O-12 COMBINATION GEAR, 17.19, 25.6 O-12 Screw hole for Motor Assy, ASF COMBINATION *No oil GEAR, 14, 28 G-26 G-26...
  • Page 164 Revision B EPSON Stylus Photo 890/1290 PAPER GUIDE, ROLLE SHAFT, CR G-26 G-26 Figure 6-10. Roller, PF G-26 G-26 Figure 6-8. Groove on Roller, PF G-26 CONTACT SPRING, PAPER EJECT G-26 G-26 Figure 6-11. Paper Guide, Front (6 spots) Figure 6-9. Roller, Eject & Ground Spring, Eject...
  • Page 165 Revision B EPSON Stylus Photo 890/1290 G-56 G-26 COMBINATION GEAR, 13.5,30 SHAFT Approx. 3 cm Approx. 3 cm Move the Carriage to left to right. After applying G-56 on the shaft, rotate the shaft half way. Figure 6-13. Combination Gear, 13.5,30...
  • Page 166 Revision B EPSON Stylus Photo 890/1290 Hook for the CR motor linear scale Screw G-26 G-26 HOPPER ASSY G-26 FRAME, ASF; B Figure 6-16. Guide Plate, CR Figure 6-15. Hopper Assy (right and left) MAINTENANCE Overview...

  • Page 167: Chapter 7 Appendix

    C H A P T E R APPENDIX...

  • Page 168: Connector Summary

    Revision B EPSON Stylus PHOTO 890/1290 7.1 Connector Summary 7.1.2 Connector Pin Assignment 7.1.1 Connector Alignment Table 7-1. Connector Assignment Connector Function Table to refer to This section provides information on connectors connecting main components of the printer. Parallel interface connector...
  • Page 169 Revision B EPSON Stylus PHOTO 890/1290 Table 7-2. Connector Pin Assignment - CN5 Table 7-4. Connector Pin Assignment - CN8 Signal Name Function Signal Name Function PE signal Head drive pulse − Ground − Head drive pulse Ground +42V power supply for nozzle Table 7-3.
  • Page 170 Revision B EPSON Stylus PHOTO 890/1290 Table 7-6. Connector Pin Assignment - CN11 Table 7-5. Connector Pin Assignment - CN9 Signal Name Function Signal Name Function Switch input Head data Power switch Head data Switch input Head data Switch input Ground Table 7-7.

  • Page 171: Eeprom Address Map

    Revision B EPSON Stylus PHOTO 890/1290 7.1.3 EEPROM Address Map Table 7-10. Connector Pin Assignment - CN15 Signal Name Function This section provides the EEPROM address map. ASF/Pump Motor Phase A Table 7-12. EEPROM Address Map ASF/Pump Motor Phase B...
  • Page 172 Revision B EPSON Stylus PHOTO 890/1290 Table 7-12. EEPROM Address Map (continued) Table 7-12. EEPROM Address Map (continued) QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings Pitch 0: 10cpi Error Code bit1: Network I/F mode (0=Off,...
  • Page 173 Revision B EPSON Stylus PHOTO 890/1290 Table 7-12. EEPROM Address Map (continued) Table 7-12. EEPROM Address Map (continued) QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings bit7: CSIC disable bit6: Black one-time bit5: Color one-time...
  • Page 174 Revision B EPSON Stylus PHOTO 890/1290 Table 7-12. EEPROM Address Map (continued) Table 7-12. EEPROM Address Map (continued) QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings Home out cleaning Ink counter Ry0 counter Timer cleaning counter...
  • Page 175 Revision B EPSON Stylus PHOTO 890/1290 Table 7-12. EEPROM Address Map (continued) Table 7-12. EEPROM Address Map (continued) QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings Head Actuator Rank ID +30<=n<=+70 for Iw_C Custom EEPROM sub...

  • Page 176: Circuit Board Component Layout

    Revision B EPSON Stylus PHOTO 890/1290 7.2 Circuit Board Component Layout C393MAIN CONTROL CIRCUIT BOARD Component Side Soldered Side Figure 7-2. Component Layout - C393MAIN APPENDIX Circuit Board Component Layout...
  • Page 177 Revision B EPSON Stylus PHOTO 890/1290 C393MAIN-B CONTROL CIRCUIT BOARD Component Side Soldered Side Figure 7-3. Component Layout - C393MAIN-B APPENDIX Circuit Board Component Layout...
  • Page 178 Revision B EPSON Stylus PHOTO 890/1290 C393MAIN-C CONTROL CIRCUIT BOARD Component Side Soldered Side Figure 7-4. Component Layout - C393MAIN-C APPENDIX Circuit Board Component Layout...
  • Page 179 Revision B EPSON Stylus PHOTO 890/1290 C378PSB/PSE CIRCUIT BOARD Figure 7-6. Component Layout - C378PSE Figure 7-5. Component Layout - C378PSB APPENDIX Circuit Board Component Layout...
  • Page 180 Revision B EPSON Stylus PHOTO 890/1290 C393PNL CIRCUIT BOARD Figure 7-7. Component Layout - C393PNL APPENDIX Circuit Board Component Layout...

  • Page 181: Electrical Circuit Board Diagrams

    Revision B EPSON Stylus PHOTO 890/1290 7.3 Electrical Circuit Board Diagrams See the following pages for the electrical circuit board diagrams below: C393MAIN C393MAIN-B C393PNL C378PSB C378PSE APPENDIX Electrical Circuit Board Diagrams...

  • Page 187: Exploded Diagrams

    EPSON Stylus PHOTO 890/1290 7.4 Exploded Diagrams 7.4.1 Exploded Diagrams for Stylus PHOTO 890 See the following pages for exploded diagrams for Stylus PHOTO 890. PM-880C/ EPSON STYLUS PHOTO 890 Rev.01 NO.1 10275 Figure 7-8. Stylus PHOTO 890 - 1...
  • Page 188 Revision B EPSON Stylus PHOTO 890/1290 PM-880C/EPSON STYLUS PHOTO 890 10275 NO.2 Rev.01 Figure 7-9. Stylus PHOTO 890 - 2 APPENDIX Exploded Diagrams...
  • Page 189 Revision B EPSON Stylus PHOTO 890/1290 545x5 No.3 Rev.01 10275 PM-880C/EPSON STYLUS PHOTO 890 Figure 7-10. Stylus PHOTO 890 - 3 APPENDIX Exploded Diagrams...
  • Page 190 Revision B EPSON Stylus PHOTO 890/1290 No.4 10275 Rev.01 Figure 7-11. Stylus PHOTO 890 - 4 APPENDIX Exploded Diagrams...
  • Page 191 Revision B EPSON Stylus PHOTO 890/1290 Without 747,748 721 728 No.5 Rev.01 10275 Figure 7-12. Stylus PHOTO 890 - 5 APPENDIX Exploded Diagrams...

  • Page 192: Exploded Diagrams For Stylus Photo 1290

    7.4.2 Exploded Diagrams for Stylus PHOTO 1290 See the following pages for exploded diagrams for Stylus PHOTO 1290. for JPN for EAI,EUL(120V),ETT For EAI(220V),EUR, S.E.ASIA, EAL,EKL PM-3500C / EPSON STYLUS PHOTO 1290 No.1 Rev.01 10270 Figure 7-13. Stylus PHOTO 1290 - 1 APPENDIX...
  • Page 193 Revision B EPSON Stylus PHOTO 890/1290 PM-3500C / EPSON STYLUS PHOTO 1290 No.2 Rev.01 10270 Figure 7-14. Stylus PHOTO 1290 - 2 APPENDIX Exploded Diagrams...
  • Page 194 Revision B EPSON Stylus PHOTO 890/1290 (501) (506) PM-3500C / EPSON STYLUS PHOTO 1290 No.3 Rev.01 10270 Figure 7-15. Stylus PHOTO 1290 - 3 APPENDIX Exploded Diagrams...
  • Page 195 Revision B EPSON Stylus PHOTO 890/1290 (501) 525 521 523 517 530 556 PM-3500C / EPSON STYLUS PHOTO 1290 No.4 Rev.01 10270 Figure 7-16. Stylus PHOTO 1290 - 4 APPENDIX Exploded Diagrams...
  • Page 196 Revision B EPSON Stylus PHOTO 890/1290 721 728 PM-3500C / EPSON STYLUS PHOTO 1290 No.5 Rev.01 10270 Figure 7-17. Stylus PHOTO 1290 - 5 APPENDIX Exploded Diagrams...

  • Page 197: Parts List

    Revision B EPSON Stylus PHOTO 890/1290 7.5 Parts List Table 7-13. Stylus PHOTO 890 Parts List Code Parts Name C.B.S. SCREW 7.5.1 Parts List for Stylus PHOTO 890 "BUTTON,CSIC" Table 7-13. Stylus PHOTO 890 Parts List "COVER,CABLE;B" Code Parts Name "LOCK,STACKER"...
  • Page 198 Revision B EPSON Stylus PHOTO 890/1290 Table 7-13. Stylus PHOTO 890 Parts List Table 7-13. Stylus PHOTO 890 Parts List Code Parts Name Code Parts Name "SHEET,PROTECT,INK" "GROUNDING SPRING,PF" "FRAME,FRONT" "FRAME,PAPER EJECT" "BUSHING,PARALLELISM ADJUST,LEFT" "HOLDER,STAR WHEEL,RIGHT;B" "BUSHING,PARALLELISM ADJUST,RIGHT" "HOLDER,STAR WHEEL,LEFT;B"...
  • Page 199 Revision B EPSON Stylus PHOTO 890/1290 Table 7-13. Stylus PHOTO 890 Parts List Table 7-13. Stylus PHOTO 890 Parts List Code Parts Name Code Parts Name TIMING BELT "PLAIN WASHER,5.1X0.7X11,S/NA" "SHAET,CR" "PLAIN WASHER,10.7X0.5X15.5,L/NA" "PULLEY,DRIVEN" "FRAME,MIDDLE" "HOLDER,PULLEY,DRIVEN" "TAPE,D50" "COMPRESSION SPRING,23.52" "BOARD ASSY.,ENCODER"...
  • Page 200 Revision B EPSON Stylus PHOTO 890/1290 Table 7-13. Stylus PHOTO 890 Parts List Table 7-13. Stylus PHOTO 890 Parts List Code Parts Name Code Parts Name "COMPRESSION SPRIN,3.944" "COMPRESSION SPRING,1.17" "FERUTO,D3.6" "EXTENSION SPRING,0.62" "SHEET,INK STOPPER" "LEVER,PAPERRETURN,RIGHT" CUP SCREW "EXTENSION SPRING,0.294"...
  • Page 201 Revision B EPSON Stylus PHOTO 890/1290 Table 7-13. Stylus PHOTO 890 Parts List Table 7-13. Stylus PHOTO 890 Parts List Code Parts Name Code Parts Name "C.B.S-TITE(P4),3X6,F/ZN" "FRAME,ROLL PAPER,RIGHT" "PAPER GUIDE,LOWER" "STOPPER,ROLL PAPER" "POROUS PAD,INK EJECT,LARGE;B" "SHEET,ROLL PAPER" "TRAY,POROUS PAD"...

  • Page 202: Parts List For Stylus Photo 1290

    Revision B EPSON Stylus PHOTO 890/1290 7.5.2 Parts List for Stylus PHOTO 1290 Table 7-14. Stylus PHOTO 1290 Parts List Code Parts Name Table 7-14. Stylus PHOTO 1290 Parts List BUTTON;C Code Parts Name "COVER,CABLE;B" HOUSING "BUTTON,PS;B" "COVER,PRINTER" OPTICAL TUBE "PAPER SUPPOT,ASSY"...
  • Page 203 Revision B EPSON Stylus PHOTO 890/1290 Table 7-14. Stylus PHOTO 1290 Parts List Table 7-14. Stylus PHOTO 1290 Parts List Code Parts Name Code Parts Name "FRAME,FRONT" "GROUNDING SPRING,PF" "BUSHING,PARALLELISM ADJUST,LEFT" "GROUNDING SPRING,PF" "BUSHING,PARALLELISM ADJUST,RIGHT" "FRAME,PAPER EJECT;B" "PAPER GUIDE,REAR" "HOLDER,STAR WHEEL,RIGHT;B"...
  • Page 204 Revision B EPSON Stylus PHOTO 890/1290 Table 7-14. Stylus PHOTO 1290 Parts List Table 7-14. Stylus PHOTO 1290 Parts List Code Parts Name Code Parts Name CUP SCREW C.P.SCREW "GROUNDING PLATE,HEAD" LEAF SPRING OIL PAD "PLAIN WASHER,3.3X0.5X8,F/UC" "SLIDER,CR" "C.B.P-TITE,2.5X5,F/ZN" TIMING BELT "PLAIN WASHER,6.2*0.2*9,L/NA"...
  • Page 205 Revision B EPSON Stylus PHOTO 890/1290 Table 7-14. Stylus PHOTO 1290 Parts List Table 7-14. Stylus PHOTO 1290 Parts List Code Parts Name Code Parts Name "P.W.,3.1X0.5X12,F/ZN" HOPPER;C RETAINING RING EDGE GUIDE;E "COMBINATION GEAR,17.19,25.6" CORK "COMBINATION GEAR,12,22.92" "SLIDER,EDGEGUIDE" "LEVER,DE,LOCK" "COMPRESSION SPRING,3.23"...
  • Page 206 Revision B EPSON Stylus PHOTO 890/1290 Table 7-14. Stylus PHOTO 1290 Parts List Table 7-14. Stylus PHOTO 1290 Parts List Code Parts Name Code Parts Name "COVER,ROLLER,LD,LEFT" "COVER,PLAT SPRING,CARTRIDGE" "COVER,ROLLER,LD,RIGHT" "DETECTOR,HP;E" "COMPRESSION SPRING,1.961" CORK;B "LEVER,FASTEN,EDGEGUIDE;B" "CLEANER HEAD,ASP" "EXTENSION SPRING,0.088" "POLUS PAD,SMALL"...

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