Epson Stylus C41 Service Manual
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Epson Stylus C41 Service Manual

Epson stylus color inkjet printer service manual
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SERVICE MANUAL

Color Inkjet Printer
Stylus C41/42/43/44 series
®
SEIJ01011

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Summary of Contents for Epson Stylus C41

  • Page 1: Service Manual

    SERVICE MANUAL Color Inkjet Printer Stylus C41/42/43/44 series ® SEIJ01011...
  • Page 2 SEIKO EPSON CORPORATION. V 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: About This Manual

    C A U T I O N Provides preventive maintenance procedures and the or condition that, if not strictly observed, could result in lists of Epson-approved lubricants and adhesives damage to, or destruction of, equipment. required for servicing the product.
  • Page 5 Indicates that a particular task must be carried out according to a certain standard after disassembly and before re-assembly, otherwise the quality of the components in question may be adversely affected.
  • Page 6 Revision Status Revision Issued Date Description March 29. 2002 First Release January 20. 2003 The model name (Stylus C43/C44 series) is added.

  • Page 7: Table Of Contents

    3.1.3 Adjustment Program feature ..............36 1.1.1 Model ......................10 3.1.4 EEPROM initial setting ................38 1.1.2 Differences between the Stylus C41/C42 series and the Stylus C40/C20 . 10 3.1.5 Head ID ...................... 39 3.1.6 Bi-D ......................40 1.2 OPERATOR CONTROLS ................11 3.1.7 USB ID ......................

  • Page 8: Chapter 1 Product Description

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

  • Page 9: Features

    Stylus C41/42/43/44 series Revision B 1.1 FEATURES Parallel Interface EPSON Stylus C41SX .EPSON Stylus C42SX The main feature of this printer is described in the following table; USB Interface Table 1-1. Feature - 1 EPSON Stylus C41UX .EPSON Stylus C42UX...

  • Page 10: Model

    C41/C42 series Stylus 12 PPM 5 PPM Stylus C40/C20 8 PPM 4 PPM INK CARTRIDGE The Stylus Stylus C41/C42 series are adopting the CSIC type ink cartridges, similar to those of Stylus Photo 870/1270 and lately models. PRODUCT DESCRIPTION FEATURES...

  • Page 11: Operator Controls

    Stylus C41/42/43/44 series Revision B 1.2 OPERATOR CONTROLS 1.2.4 Printer Condition and Panel Status Indicators 1.2.1 Operate Switch Printer status Powe Error Priority Operate switch is located on the control panel. Power ON condition Ink sequence Blink 1.2.2 Control Panel...

  • Page 12: Errors

    Stylus C41/42/43/44 series Revision B 1.2.5 Errors Ink out When the printer runs out the most part of the ink of any one color, it warns ink- low and keeps printing.When the printer runs out the whole ink of any one color, it stops printing and indicates ink-out error.

  • Page 13: Chapter 2 Disassembly And Assembly

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

  • Page 14: Overview

    See the precautions given under the handling “WARNING” and “CAUTION” in the This section describes procedures for disassembling the main components of the Stylus following column when disassembling or assembling the Stylus C41/C42 series Disconnect the power cable before disassembling or assembling C41/C42 series.

  • Page 15: Tools

    Stylus C41/42/43/44 series Revision B 2.1.2 Tools Avant de commencer, assurez vous que l’imprimante soit eteinte W A R N I N G Use only specified tools to avoid damaging the printer. et que le cordon d’alimentation soit debranche. Lorsque vous changez la pile au lithium, assurez vous que la Table 2-1.

  • Page 16: Screws

    Stylus C41/42/43/44 series Revision B 2.1.3 Screws Table 2-2. Name and Specification Outward Form CBS 3x6 CBP 3x8 CBS (P2) 3x6 CBS 3x8 C.P.F.S-Tite 3x12 Disassembly and Assembly Overview...

  • Page 17: Work Completion Check

    Stylus C41/42/43/44 series Revision B 2.1.4 Work Completion Check Table 2-3. Work Completion Check (continued) Classifi- If any service is made to the printer, use the checklist shown below to confirm all works are Item Check Point Status cation completed properly and the printer is ready to be returned to the user.

  • Page 18: Disassembly

    Stylus C41/42/43/44 series Revision B 2.2 Disassembly 2.2.1 Upper housing removal Move the edge guide to the right until it stops moving. Make sure the edge guide is The flowchart below shows step-by-step disassembly procedures. When disassembling in the upper housing’s notch position.
  • Page 19 Stylus C41/42/43/44 series Revision B Remove the 2 hooks at the front using a precision screwdriver (-). Remove the 2 hooks on the sides by pushing the tops of the hooks up. C A U T I O N The printer should not turn when the front 2 hooks are removed.

  • Page 20: Asf Unit Removal

    Stylus C41/42/43/44 series Revision B 2.2.2 ASF unit removal A D J U S T M E N T The Top Margin adjustment is required when the ASF unit is Remove the upper housing. (Refer to Section 2.2.1) R E Q U I R E D replaced.

  • Page 21: Waste Ink Pad Removal

    Stylus C41/42/43/44 series Revision B 2.2.3 Waste ink pad removal A D J U S T M E N T When the Waste ink pad is replaced with a new one, following service Remove the upper housing. (Refer to Section 2.2.1) R E Q U I R E D item is required.

  • Page 22: Ps Unit Removal

    Stylus C41/42/43/44 series Revision B 2.2.4 PS unit removal When installing the PS unit, make sure the claws are attached to Remove the upper housing. (Refer to Section 2.2.1) the hooks on the lower housing. Remove the ASF unit. (Refer to Section 2.2.2) Disconnect the cable from the connector (CN2) on the main board using tweezers, etc.

  • Page 23: Paper Eject Roller Removal

    Stylus C41/42/43/44 series Revision B 2.2.5 Paper eject roller removal Take out the two screws. Remove the upper housing. (Refer to Section 2.2.1) Grip the dowel pin of the PE roller’s gear, turn it clockwise and release the carriage lock.
  • Page 24 Stylus C41/42/43/44 series Revision B Slide the PE roller to the left side, then remove the claw extending from the lower If the Paper eject roller gear and Paper eject roller shaft are housing. C A U T I O N removed or , make sure that neither of the Paper eject roller shaft hooks is damaged.

  • Page 25: Paper Guide Upper/Left Removal

    Stylus C41/42/43/44 series Revision B 2.2.6 Paper Guide Upper/Left removal Press the dowel of the paper guide unit with tweezers, etc., then pull it forward and remove it. C A U T I O N Perform this operation by the following procedures so that the coating material of the PF roller does not damage.
  • Page 26 Stylus C41/42/43/44 series Revision B Insert the tip of the spring to the Paper Guide. Assemble the Paper Guide Upper/Left to the Main Frame. Figure 2-21. Setting the spring to the Paper Guide Figure 2-23. Assembling the Paper Guide 1 Place the OHP sheet on the PF roller.

  • Page 27: Main Board Removal

    Stylus C41/42/43/44 series Revision B 2.2.7 MAIN board removal Eject the OHP sheet from the printer by rotating the protrusion of the Paper Eject roller gear in CW direction. Remove the upper housing. (Refer to Section 2.2.1) Remove the ASF unit. (Refer to Section 2.2.2) Remove the PS unit.
  • Page 28 Stylus C41/42/43/44 series Revision B Disconnect the four connectors (CN9, CN4, CN7, CN12). USB Type CBS 3×6 CBS 3×8 CN12 Figure 2-27. Disconnecting the connectors Parallel Type Take out the 1 screw. (Refer to Figure 2-27.) Lift the MAIN board up and remove it.

  • Page 29: Printhead Unit Removal

    Stylus C41/42/43/44 series Revision B 2.2.8 Printhead unit removal A D J U S T M E N T When replacing the Main board with a new one, perform the Remove the upper housing. (Refer to Section 2.2.1) R E Q U I R E D following service items.
  • Page 30 Stylus C41/42/43/44 series Revision B When reassembling the CR motor, it contact the lib of Main frame after turning clockwise. Carriage unit CSIC board connector Figure 2-30. Disconnecting the FFC Release the two hook, fixing between the Printhead unit and carriage cover, on the both sides of the carriage unit, then pull the unit forward and remove the cover.
  • Page 31 Stylus C41/42/43/44 series Revision B If the Carriage unit is disassembled or replaced with a new one, make sure that the Carriage timing belt is set in the assembling groove correctly as following figure. Timing belt Printhead unit Figure 2-32. Removing the Printhead unit Disconnect the FFC from the connector.

  • Page 32: Ld Unit Removal

    Stylus C41/42/43/44 series Revision B 2.2.9 LD unit removal When reassembling the LD unit, make sure that seven hooks are Remove the upper housing. (Refer to Section 2.2.1) set to the Main frame. Remove the ASF unit. (Refer to Section 2.2.2) Disconnect the cables which are connected to the LD unit.

  • Page 33: Chapter 3 Adjustment

    C H A P T E R ADJUSTMENT...

  • Page 34: Overview

    Stylus C41/42/43/44 series Revision B 3.1 Overview NOTE: • “O”: Required Adjustment. The number in the circle shows the required adjustment order. “NA”: Not applicable. This section describes the procedure for adjustments required when the printer is • Following adjustments are not required on this product.

  • Page 35: Adjustment Program Initial Setting Menu

    Stylus C41/42/43/44 series Revision B 3.1.2 Adjustment Program Initial Setting menu Select the Interface port number which you connect the printer to your PC. You have to input the following four items before entering the adjustment main menu. Model name (Stylus C41UX/41SX/42UX/42SX) For the Stylus C41UX, select Model name “Stylus C41UX.”...

  • Page 36: Adjustment Program Feature

    Stylus C41/42/43/44 series Revision B 3.1.3 Adjustment Program feature The user interface of the main menu on this program is shown below. The adjustment program enables you to set various values correctly to prevent malfunction and fluctuation of printing quality and printing function caused by difference in components and assembly when the printer components are replaced during repair.
  • Page 37 Stylus C41/42/43/44 series Revision B Get status C A U T I O N This program dose not display the “Paper out” error status in the This function is used to get the printer status and following figure is displayed on the Bi-d adjustment even if the paper is out in the ASF.

  • Page 38: Eeprom Initial Setting

    Stylus C41/42/43/44 series Revision B 3.1.4 EEPROM initial setting This function is used when replacing the MAIN board. Using this function enables writing of the initial setting values to the new MAIN board’s EEPROM. Choose the “EEPROM initial setting” in the Adjustment menu.

  • Page 39: Head Id

    Stylus C41/42/43/44 series Revision B 3.1.5 Head ID Choose the “Check present data” and click the OK button. Following Check present data menu is displayed. Click the OK button, then readout data is This adjustment function is required when any of the following parts is replaced.

  • Page 40: Bi-D

    Stylus C41/42/43/44 series Revision B When the Head ID is input and writes to the EEPROM, the message is displayed 3.1.6 Bi-D on the bottom column in the menu. You perform this adjustment to correct differences in printing positions, which is caused by incorrect of printing timing in right and left directions during the Bi- directional printing.
  • Page 41 Stylus C41/42/43/44 series Revision B Figure 3-12. Bi-d adjustment pattern Figure 3-13. Choose the misaligned dot size NOTE: As shown in the sample, gaps between passes are sometimes created in different directions among patterns. This unexpected change in direction is caused by an ink jet printer-specific reason, which is an ink jet printer...

  • Page 42: Usb Id

    A unique code called USB ID is input to the specific address of the EEPROM in our back to the “Bi-Directional Adjustment” menu. Choose the “Print the Bi-D manufactory and the following total 18-digit code is used as a USB ID for the EPSON adjustment patter” and click the “OK” button.
  • Page 43 Stylus C41/42/43/44 series Revision B Choose the “Input USB ID” and click “OK” button in the “USB ID check/Input” In case the USB ID is not input in the adjustment program after menu. Following menu is displayed. C A U T I O N the main board is replaced to new one, the USB ID may not possibly unique one.

  • Page 44: First Dot Position

    Stylus C41/42/43/44 series Revision B 3.1.8 First Dot Position This Adjustment revises gap of left margin ( Print start position) of post card printing and A4 printing. Press [OK] button after confirming. Repeat above 2 to 5 and adjust so that left margin will be 3+/-1.5mm.

  • Page 45: Top Margin

    Stylus C41/42/43/44 series Revision B 3.1.9 Top margin Choose the “Print the Top margin” in the “Top margin adjustment” and click the “OK” button. This function can be used to change the top margin value. You are required to perform this adjustment after performing the following operations.

  • Page 46: Head Cleaning

    Stylus C41/42/43/44 series Revision B 3.1.10 Head cleaning 3.1.11 Initial ink charge This printhead cleaning is CL1’ and about 1/8 of the brand-new black I/C and 1/17 of After you replaced any of the following units, perform initial ink charge and return the the brand-new color I/C are consumed.

  • Page 47: Refurbishment For Doa

    Stylus C41/42/43/44 series Revision B 3.1.12 Refurbishment for DOA Set the dummy cartridge in the printer using the ink replacement function. Select “Yes” under “Item,” then click the “OK” button. The “Refurbishment for If you clean the cavity of the printhead and cap assembly, this function will be useful.

  • Page 48: Protection Counter Check

    Stylus C41/42/43/44 series Revision B 3.1.13 Protection counter check After read the Caution description on the above menu, click the “OK” button in the menu. The present counter value is displayed on the bottom column as following The program allows you to check or clear the current protection counter value (waste figure.
  • Page 49 Stylus C41/42/43/44 series Revision B Clear the present counter value C A U T I O N Be sure to replace the installed waste ink pad with a new one after Choose the “Clearning the present counter values” in the “Ptotection counter or before you clear the current protection counter value.

  • Page 50: Eepron Check

    Stylus C41/42/43/44 series Revision B 3.1.14 EEPRON check You can check the EEPROM data or can write the specific data into the specific address of the EEPROM directly even if the printer is error condition. (In case one of the main logic circuit such as CPU, I/F receiver IC, RAM, EEPROM is broken, this function is not available) Select the “EEPROM check”...

  • Page 51: Eeprom Back Up Data

    Stylus C41/42/43/44 series Revision B 3.1.15 EEPROM back up data This function is used when replacing the MAIN board. Using this function, the data on the currently used MAIN board are backed up, then the backed up data can be written to the EEPROM on the new MAIN board after replacement.

  • Page 52: A4 Pattern Will Print

    Figure 3-34. A4 Check pattern C A U T I O N Do not print the A4 Check pattern on the EPSON exclusive paper such as Photo quality ink jet paper. This check pattern is for the plain paper. So, use the Plain paper for this check pattern printing.
  • Page 53 Stylus C41/42/43/44 series Revision B Figure 3-35. A4 Check pattern Adjustment Overview...

  • Page 54: Chapter 4 Maintenance

    C H A P T E R MAINTENANCE...

  • Page 55: Overview

    Stylus C41/42/43/44 series Revision B 4.1 Overview 4.1.2 Service Maintenance If print irregularity (missing dot, white line, etc.) has occurred or the printer indicates This section provides information to maintain the printer in its optimum condition. “Maintenance Error”, take the following actions to clear the error.

  • Page 56: Lubrication

    Stylus C41/42/43/44 series Revision B 4.1.3 Lubrication Table 4-2. Lubrication Type/Point Lubrication Type/Point Remarks The characteristics of the grease have great affects on the mechanical function and durability, especially does the characteristics about temperature environment. The type • Use a syringe to apply it.
  • Page 57 Stylus C41/42/43/44 series Revision B G-58 G-58 200mm Figure 4-2. Lubrication point 2 G-58 Main frame right side view Figure 4-1. Lubrication point 1 G-46 Figure 4-3. Lubrication point 3 Maintenance Overview...

  • Page 58: Chapter 5 Appendix

    C H A P T E R APPENDIX...

  • Page 59: Electrical Circuits

    Revision B 5.1 Electrical Circuits See the following pages for the electric circuit diagrams below: C482MAIN-C : Stylus C41/42 UX series control circuit board C482MAIN-D : Stylus C41/42P SX series control circuit board C482PSH : Power supply circuit board Appendix...

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