Epson Stylus CX4900 Service Manual
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Epson Stylus CX4900 Service Manual

Color inkjet printer
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SERVICE MANUAL

Color Inkjet Printer
EPSON Stylus CX4900/CX4905/CX5000/
DX5000/DX5050
StylusCX5900/CX6000/DX6000/
DX6050
SEMF06-006

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Summary of Contents for Epson Stylus CX4900

  • Page 1: Service Manual

    SERVICE MANUAL Color Inkjet Printer EPSON Stylus CX4900/CX4905/CX5000/ DX5000/DX5050 StylusCX5900/CX6000/DX6000/ DX6050 SEMF06-006...
  • Page 2 The contents of this manual are subject to change without notice. All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them.
  • Page 3 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

    CHAPTER 6. MAINTENANCE comment on the results achieved through a previous action. Provides preventive maintenance procedures and the lists of Epson- approved lubricants and adhesives required for servicing the product. I.ndicates an operating or maintenance procedure, practice or condition W A R N I N G CHAPTER 7.
  • Page 5 Revision Status Revision Issued Date Description August 4, 2006 First Release...

  • Page 6: Table Of Contents

    1.4 Stand-alone Copy ....................23 1.9 Control Panel....................... 49 1.4.1 Basic Specifications..................23 1.9.1 Control Panel of Stylus CX4900/CX4905/CX5000/DX5000/DX5050 ..49 1.4.2 Copy Speed (TBD) ..................25 1.9.2 Control Panel of Stylus CX5900/CX6000/DX6000/DX6050....51 1.4.3 Configuration for copying ................25 1.9.3 Method of Changing Modes ...............
  • Page 7 4.5.2 Scanner Carriage Unit ................166 Chapter 4 DISASSEMBLY/ASSEMBLY 4.5.3 Scanner Motor Unit/Scanner HP Sensor/Driven Pulley......168 4.1 Overview ......................123 4.6 Removal procedure Specific to Stylus CX4900/CX4905/CX5000/DX5000/DX5050 169 4.1.1 Precautions....................123 4.6.1 Panel Unit ....................169 4.1.2 Tools ......................123 4.6.2 Housing, Upper..................
  • Page 8 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Chapter 6 MAINTENANCE 6.1 Overview ......................191 6.1.1 Cleaning ....................191 6.1.2 Service Maintenance................. 191 6.1.3 Lubrication....................193 Chapter 7 APPENDIX 7.1 Connector Summary..................197 7.1.1 Major Component Unit................197 7.2 Electrical Circuits ....................203...

  • Page 9: Chapter 1 Product Description

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

  • Page 10: Overview

    C H E C K Only the basic copy functions are provided for easier operation. P O I N T applies to all of EPSON Stylus CX4900/CX4905/CX5000/DX5000/ Paper size can be selected from 2, 3 or 4 options. DX5050/CX5900/CX6000/DX6000/DX6050. Table 1-1. Paper Size...
  • Page 11 Devices” and that is connected by USB cable. Scan functions Stylus CX4900/CX4905/CX5000/DX5000/DX5050 This unit provides scan mode so that data can be scanned and transferred to a connected computer or to e-mail via application software like the EPSON SMART PANEL. Photo Print Function ( only) Stylus CX5900/CX6000/DX6000/DX6050 This unit has function to scan and print photos.

  • Page 12: Specifications

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.2 Specifications Print Direction Bi-directional minimum distance printing (with logic seeking) 1.2.1 Printer specifications Print Resolution This section covers specifications of the printer. Table 1-3. Print Resolution 1.2.1.1 Physical Specification Horizontal direction (across columns) Vertical direction (paper feed)

  • Page 13: Paper Support

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.2.1.4 Paper Support Table 1-4. Paper Support Thick- Following table shows the paper type and sizes supported by the printer. Paper Width Length Weight Item ness EAI EUR ASIA Supported paper type and sizes vary depending on the markets and the models.
  • Page 14 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.2.1.5 Printing Area Cut sheet (standard printing) Printable area The print quality is guaranteed for the print area above the 3 mm bottom margin. For paper width (PW) and paper length (PL), refer to “1.2.1.4 Paper Support”...
  • Page 15 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Cut sheet (border-free printing) Printable area For paper width (PW) and paper length (PL), refer to “1.2.1.4 Paper Support” (p.13). Refer to the following table. As for each overhang area, refer to Figure 1-4 (p.15).
  • Page 16 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Envelopes Printable area For paper width (PW) and paper length (PL), refer to “1.2.1.4 Paper Support” (p.13). Refer to the following table. As for each margin area, refer to Figure 1-5 (p.16). Table 1-7. Applicable Paper/Printing Area...

  • Page 17: Scanner Specifications

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.2.1.6 Ink Cartridge Specification 1.2.2 Scanner Specifications Type/color: EPSON-brand special ink cartridges This section covers specifications of the scanner. Table 1-8. Ink Cartridge 1.2.2.1 Basic Specifications Color Size Europe ASIA/pacific Latin Product type: Flatbed color image scanner...

  • Page 18: Common

    Input frequency range 49.5 ~ 60.5 (Hz) Standalone Approx. 13 Scan bed Copying (ISO10561 Letter Patter, Plain Paper - Text) Approx. 4.0 (Stylus CX4900/CX4905/CX5000/DX5000/DX5050) Low-power Mode Scan area Approx. 5.0 (Stylus CX5900/CX6000/DX6000/DX6050) Sleep Mode Approx. 3.5 Power Off Mode Approx. 0.2 Approx.
  • Page 19 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.2.3.2 Environmental Performance 1.2.3.4 Safety Standards: EMC Table 1-12. Environmental Performance Table 1-13. Safety Standards: EMC Condition Temperature Humidity * Impact Vibration 100-120 V version 220-240 V version EN 60950, EN60950-1 Operating 10 ~ 35°C * 20 ~ 80% * 0.15G...

  • Page 20: Interface

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.3 Interface Connector signal layout Table 1-15. Connector pin assignment and signals The EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/ Pin No. Signal name Function description DX6000/DX6050 provides the following interface. Cable power. Max. power consumption is 2 mA.

  • Page 21: Standard Card Slots

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.3.2 Standard Card Slots 1.3.2.1 Memory Card Table 1-17. Memory Card Memory card standards Slots Supported memory cards • Compact Flash (memory card only) Compact Flash CF+ and CompactFlash Specification Revision 3.0 compliant CF Type II slot •...
  • Page 22 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.3.2.2 Supported Power Supply Voltage 1.3.2.3 Multi-slot Operations 3.3 V/ 5 V (both) Overview 3.3 V (only) There is only one type of card that can be used to simultaneously access both a connected computer and the direct printing function.

  • Page 23: Stand-Alone Copy

    *3: Printing is available, but Color tone is not secured. Actual (The state which “Fit to page” is not selected. It is the power-on default.) *4: Stylus CX4900/CX4905/CX5000/DX5000/DX5050 only The zoom factor is set to 100%. *5: Stylus CX5900/CX6000/DX6000/DX6050 only...
  • Page 24 This function sets the number of copies. The setting range is: A4, Letter/A4* B&W, Color Standard • 1 to 9 and 100 (Stylus CX4900/CX4905/CX5000/DX5000/DX5050) Plain Paper • 1 to 99 (Stylus CX5900/CX6000/DX6000/DX6050) 4" x 6" (10 x 15), B&W, Color Standard 5"...

  • Page 25: Copy Speed (Tbd)

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.4.1.6 Multiple Copies From an Original 1.4.3 Configuration for copying Second and subsequent copies can be printed from an original without scanning. Table 1-21. Configuration for Copying When printing two or more copies, under the following settings the scanned data can...

  • Page 26: Relation Between Original And Copy

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.4.4 Relation between Original and Copy 1.4.4.1 Standard Copy The following table shows the relative positioning of the original and copy. Right side of copy Table 1-22. Original (scanner) Copy (readable width) (out-of-range left margin)

  • Page 27: Borderfree Copy

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.4.4.2 BorderFree Copy The following table shows the relative positioning of the original and copy. Table 1-24. Original (scanner) Right side of copy (readable width) (readable length) (out-of-range left margin) (out-of-range top margin) Copy 216 mm (8.5") 1.5 mm ±...
  • Page 28 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.4.4.3 Small Margins copy The following table shows the relative positioning of the original and copy. Table 1-26. Original (scanner) Right side of copy (readable width) (readable length) (out-of-range left margin) (out-of-range top margin) Copy 216 mm (8.5")

  • Page 29: Memory Card Print

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.5 Memory Card Print C H E C K However, any file that is saved in the following directories or their P O I N T sub-directories cannot be included as files to be printed.

  • Page 30: Functions

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.5.1.7 File Sorting 1.5.2 Functions This unit stores all photo data files in the memory, using the photo data files' full-path 1.5.2.1 List of Functions ¥ ¥ ¥ file names (for example, “ DCIM 100EPSON EPSN0000.JPG”), and assigned photo...
  • Page 31 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 1-29. Supported Paper Sizes, Types and Qualities (for EAI) Table 1-30. Supported Paper Sizes, Types and Qualities (for EUR/ASIA) Paper type Paper size Paper type Paper size Quality * Quality * Panel Paper Panel...
  • Page 32 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.5.2.2 Memory Card Printing Mode Table 1-31. Memory Card Printing Mode Print all images Setting Memory card printing mode Description Option, setting range, etc. This function prints all of the image files stored in the memory card. As shown •...

  • Page 33: Index Sheet

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.5.3 Index Sheet 30 thumbnail images are assigned per index sheet. There are 3 marking areas for each thumbnail and you can set the number of copies up to 3. “Paper type” and “Paper size” can be set from the operation panel.
  • Page 34 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.5.3.1 Rules for Scanning Index Sheets Original's top left alignment position Index sheet scan range First pixel Set index sheet in scanner Scan direction • Place the side to be scanned face down relative to the scan bed, as described below.
  • Page 35 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Basic specifications for scanning of index sheets Errors during scanning or printing of index sheets • Stops scanning and returns to the menu screen if the card is removed while Scanning rules for index sheet an index sheet is being scanned or printed.

  • Page 36: Layout And Paper Type, Paper Size

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.5.4 Layout and Paper Type, Paper Size 1.5.6 Trimming Function The layout/paper type and size combinations that can be selected are listed below. A trimming function is provided as a means of coordinating photo data with the types of photo frames handled by this unit.

  • Page 37: Assignment Rules For Photo Frame Numbers And Rotation

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.5.7 Assignment Rules for Photo Frame Numbers and Rotation Top edge The rules concerning photo frame numbers that are referred when assigning photos are described below. The numbers shown in each diagram and photo frame below indicate the photo frame numbers used for various types of layout.

  • Page 38: Layout Drawings

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.5.8 Layout Drawings 1.5.8.2 1-up with Borders 1.5.8.1 Border Free Printable area Printable area Paper Figure 1-16. Border Free Figure 1-17. 1-up with Borders Table 1-36. Border Free (unit: mm (inch)) Table 1-35. Border Free...
  • Page 39 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.5.8.3 20-up 1.5.8.4 30-up Figure 1-18. 20-up Figure 1-19. 30-up Table 1-37. 20-up (unit: mm (inch)) Table 1-38. 30-up (unit: mm (inch)) Paper type Paper type 101.60 152.40 20.00 20.00 6.10 6.30 19.80 20.30 3.00 3.00...

  • Page 40: Relation Between Paper Type And Quality

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.5.8.5 80-up 1.5.9 Relation between Paper Type and Quality In this mode, printing is always in color (CMYK), not black ink only. Table 1-40. Relation between Paper Type and Quality Print resolution Paper type Dot size...

  • Page 41: Photo Mode (Stylus Cx5900/Cx6000/Dx6000/Dx6050 Only)

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.6 Photo Mode 1.6.2 Original Photo Setting Specification (Stylus CX5900/CX6000/DX6000/DX6050 only) When making prints of your photos, place the photos as described below. The photograph manuscripts can be set up by side putting, and be set up to three.

  • Page 42: Supported Paper Sizes, Types And Qualities

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.6.3 Supported Paper Sizes, Types and Qualities Table 1-41. Supported Paper Size, Quality, Type Paper type EUR/ASIA Quality Resolution Print Layout Dot size (H x V dpi) direction Paper name Panel indication paper size Panel Indication paper size...

  • Page 43: Setting Modes

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.7 Setting Modes 1.7.4 Nozzle Check Pattern Print A nozzle check pattern can be printed to check for any ink clogging. Left ink quantity 1.7.1 Ink Level Check of each color is also printed by the unit of 10%.

  • Page 44: Head Alignment

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.7.5 Head Alignment Alignment adjustments can be made to maintain high print quality during bi-directional printing. This function can be used for basic adjustments. For more precise adjustments, we recommend using the head alignment utility that is installed in the connected computer.

  • Page 45: Copy Quality

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.7.7 Borderless setting The adjustment procedure will be terminated unsuccessfully in C H E C K the following cases and no adjustment will be done. NOTE: This function is only for Stylus CX5900/CX6000/DX6000/DX6050 (EAI P O I N T and Latin models) 1.

  • Page 46: Display

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.7.10 Display NOTE: This function is only for Stylus CX5900/CX6000/DX6000/DX6050 (Asia models) This utility is used for selecting display message. Table 1-45. Display Selectable value Format Pictograph Message is icon English Message is English 1.7.11 Paper size...

  • Page 47: Usb Direct-Print/Pictbridge Functions

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.8 USB Direct-Print/PictBridge Functions Table 1-47. Items that can be specified from DSC Item USB DIRECT-PRINT DPS (PictBridge) 1.8.1 Supported Device Any area of rectangle. Cropping Any area of rectangle The printer can print from Digital Still Camera tat is compliant with the following...
  • Page 48 DSC.* 1.8.3.3 Display when DSC is connected When DSC is connected with the above conditions: Stylus CX4900/CX4905/CX5000/DX5000/DX5050: “P” will be displayed with 7 Segment LED. Stylus CX5900/CX6000/DX6000/DX6050: “Camera Connected” icon will be displayed on the LDC and the “Print All” LED will be turned on.

  • Page 49: Control Panel

    Light when available memory card is in a slot. Blink when [Green] * accessing to the card. Refer to “1.9.4.1 Stand-alone Copy / Memory Card Print (Stylus CX4900/CX4905/ Figure 1-22 (p50) Note "*": Numbers in the table correspond to the numbers shown in CX5000/DX5000/DX5050)” (p.55) for details about each button.
  • Page 50 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Α Β <EAI> <Euro> <Spanish/Portuguese> <Spanish> <EKL> <ECC> <ESP> Figure 1-22. Control Panel (Stylus CX4900/CX4905/CX5000/DX5000/DX5050) PRODUCT DESCRIPTION Control Panel...

  • Page 51: Control Panel Of Stylus Cx5900/Cx6000/Dx6000/Dx6050

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.9.2 Control Panel of Stylus CX5900/CX6000/DX6000/ Indicators DX6050 The control panel contains 2.0 inch LCD and 15 LEDs, which are used to indicate various status. Buttons Table 1-51. Indicators (Stylus CX5900/CX6000/DX6000/DX6050) The control panel contains the following buttons, which are used to set and execute Function various operations.
  • Page 52 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Κ Α <EAI> <Euro> <Spanish/Portuguese> <Spanish> Figure 1-23. Control Panel (Stylus CX5900/CX6000/DX6000/DX6050)(1) PRODUCT DESCRIPTION Control Panel...
  • Page 53 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Κ Α <EKI> <ECC/EHK> <ETT> <ESP> Figure 1-24. Control Panel (Stylus CX5900/CX6000/DX6000/DX6050)(2) PRODUCT DESCRIPTION Control Panel...

  • Page 54: Method Of Changing Modes

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.9.3 Method of Changing Modes This printer has the following modes: Copy mode Memory card mode Photo mode* Setup mode* It is possible to enter respective modes by pressing the button with the same name as each mode.

  • Page 55: Operations

    For operations of the Stylus CX5900/CX6000/DX6000/DX6050 refer to Table 1-54 on page 57 1.9.4.1 Stand-alone Copy / Memory Card Print (Stylus CX4900/CX4905/CX5000/DX5000/DX5050) The functions of this unit caused by each button in stand-alone copy mode or memory card print mode are described in the following table.

  • Page 56: Product Description

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 1-53. Operations for Stylus CX4900/CX4905/CX5000/DX5000/DX5050 Function Button Stand-alone Copy Memory Card Print • Alternate paper type of “Plain Paper” and “Photo Paper”. • Alternate paper type of “Plain Paper” and “Photo Paper” which will be used in “Print From Index Sheet”...
  • Page 57 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.9.4.2 Stand-alone Copy / Memory Card Print / Photo / Setup/Utilities (Stylus CX5900/CX6000/DX6000/DX6050) The functions of this unit caused by each button in stand-alone copy, memory card print, photo, or Setup/Utilities modes are described in the following table.
  • Page 58 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 1-54. Operations for Stylus CX5900/CX6000/DX6000/DX6050 Function Button Stand-alone copy Memory card print Photo Setup/Utilities • Makes transition from “Stand-alone • Makes transition from “Memory card Before scanning • Make transition from “Setup” mode to copy”...
  • Page 59 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 1-54. Operations for Stylus CX5900/CX6000/DX6000/DX6050 Function Button Stand-alone copy Memory card print Photo Setup/Utilities • Alternates paper size of “Letter (or • Alternates paper size of “Letter (or Before scanning • Invalid A4)”, “4” x 6” /10x15”, and “5” x 7”/ A4)”, “4”...
  • Page 60 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 1-54. Operations for Stylus CX5900/CX6000/DX6000/DX6050 Function Button Stand-alone copy Memory card print Photo Setup/Utilities Not in copying or printing status Before scanning Not in copying or printing status Resets the setting value (paper size, paper type, number of copies).
  • Page 61 • Clear the PG error and print job suspended by PG error when the adjust lever is changed to “L: Cut sheet position” in the PG error status. Note *1: For Stylus CX4900/CX4905/CX5000/DX5000/DX5050; LED panel will show ‘P’ and Change to “Print All/DPFOF”...

  • Page 62: Errors

    — (Warning) Note "*": Blinks twice continuously *3: When 2 or more error occur at the same time, one with smaller number of “Priority” will be indicated. Note *1: Stylus CX4900/CX4905/CX5000/DX5000/DX5050 only *2: Stylus CX5900/CX6000/DX6000/DX6050 only PRODUCT DESCRIPTION Control Panel...

  • Page 63: Printer Initialization (Tbd)

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 1.9.5.2 Errors and Occasions 1.9.6 Printer Initialization (TBD) Fatal error: Mechanical or internal problem has occurred. There are four kinds of initialization method, and the following explains each initialization. Maintenance request: Part(s) inside the printer are at the end.

  • Page 64: Chapter 2 Operating Principles

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

  • Page 65: Overview

    Pump Unit Mechanism, Paper Feeding Mechanism, Ink System. Cap Unit Like the previous printers, EPSON Stylus CX4900/CX4905/CX5000/DX5000/ DX5050/CX5900/CX6000/DX6000/DX6050 is equipped with two DC motors; one for the Paper Loading/Feeding Mechanism and the Pump Mechanism with the CR Lock Mechanism, and one for the CR Mechanism. The ASF Unit for the Paper Loading Figure 2-1.

  • Page 66: Print Head

    Electric Element). In order to uniform the ejected ink amount, the Print Head has its to perform economy dot printing and variable dot printing. own Head ID (13-digits code for this Print Head for EPSON Stylus CX4900/CX4905/ The Print Head nozzle configuration is as follows.
  • Page 67 2.2.2.2 Printing Method Normal state: The dot printing systems of EPSON Stylus CX4900/CX4905/CX5000/DX5000/ When the printing signal is not output from the Main Board (C657 Main), or the DX5050/CX5900/CX6000/DX6000/DX6050 are variable dot printing systems. PZT drive voltage is not applied, the PZT does not change the shape. Therefore, Variable dot printing the PZT does not push the ink cavity.

  • Page 68: Carriage Mechanism

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 2.2.3 Carriage Mechanism CR measurement sequence To set the appropriate drive current value according to the variation of the CR The Carriage Mechanism consists of Carriage Unit (including the Print Head, CR mechanical load, the mechanical load is measured in a CR measurement sequence Encoder Board and PW Sensor), CR Motor, Timing Belt and CR Scale etc.
  • Page 69 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 2.2.3.2 Carriage Home Position Detection 2.2.3.3 Sequence Used for PW Detection Current position temporary detection sequence determines if the carriage is in the The PW (paper width detection) Sensor installed on the Carriage Unit bottom is used to carriage lock position and releases the carriage if it is locked.

  • Page 70: Paper Loading/Feeding Mechanism

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 2.2.4 Paper Loading/Feeding Mechanism The drive of the PF motor is transmitted to the LD roller shaft and the PF roller through gears for the Paper loading/feeding mechanism. The Paper loading mechanism plays a The following DC motor controls the Paper loading/feeding mechanism on this printer.
  • Page 71 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A For your reference, the top or the end of a paper is usually detected with the PE Sensor. 2.2.4.1 Paper Loading Mechanism In case that the PE Sensor cannot detect the top of a paper in the paper loading The Paper loading mechanism consists of the Change Lever in the Pump Unit, the sequence, the printer indicates the “Paper Out error”.

  • Page 72: Operating Principles

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Step 1 (ASF Home position) Step 2 When the PF Motor pinion When a paper is loaded gear rotates CCW direction from the ASF Unit, the Hopper & Paper Back Lever condition Hopper & Paper Back Lever condition...
  • Page 73 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Step 3 Step 4 The PF Motor pinion gear While the LD Roller rotates rotates CCW direction (right CCW direction (right side Hopper & Paper Back Lever condition Hopper & Paper Back Lever condition side view), and the drive of...

  • Page 74: Paper Feeding Mechanism

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 2.2.4.2 Paper Feeding Mechanism Following figure shows you the transmission path for the PF Roller & the Paper Guide Roller and the EJ Roller & the Star Wheel. The Paper feeding mechanism consists of PF Motor, PF Roller, EJ Roller, PE Sensor, PF Encoder and PF Scale etc.

  • Page 75: Ink System Mechanism

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 2.2.5 Ink System Mechanism 1) Valve closing condition (CL position) By closing the air valve, the ink is forcibly absorbed from the Ink Cartridge The Ink System Mechanism consists of Pump mechanism with Carriage lock or the ink cavity by the Pump Unit and is ejected to the Waste Ink Pad while mechanism and Capping mechanism with Wiper mechanism.
  • Page 76 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 2.2.5.1 Capping Mechanism Wiper with the Cap unit The wiping operation is controlled by the Carriage Unit movement. This operation The Capping mechanism covers the Print Head with the Cap to prevent the nozzle from is usually performed with every CL sequence which is to absorb the ink from the increasing viscosity when the printer is in stand-by state or when the printer is off.
  • Page 77 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 2.2.5.2 Pump Unit Mechanism Ink eject operation (usual operation) The ink is absorbed from the Ink Cartridge, the ink cavity and is ejected to the The PF Motor also controls the Pump Unit mechanism (including the Change Lever) as Waste Ink Pad from the Cap when the Ink Tube is pressed by a roller in the Pump well as the Paper loading/feeding mechanism.

  • Page 78: Ink Sequence

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Carriage lock operation by the Change Lever 2.2.6 Ink Sequence Unlike the previous printer (Stylus COLOR 680), this printer does not have the Initial ink charge Carriage Lock Lever with the Wiper. After the printer is purchased and the power is turned on for the first time, the Instead of the Carriage Lock Lever, the Change Lever is set to the front side of the printer must perform the Initial Ink Charge to charge the ink inside the ink cavity.
  • Page 79 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Independently of the printing path after the previous CL, perform manual CL from Timer Cleaning CL1 to CL3 in order if the cumulative printing timer counter is less than 9min. Like the previous printers, this printer dose not have Lithium battery which is used Only when the cumulative printing timer counter is more than 9min, execute only for the backup power source for Timer IC.

  • Page 80: Scanner Mechanism

    Scanner HP Sensor Scanner Carriage Shaft Scanner Carriage Unit The Scanner Mechanism of Stylus CX4900/CX4905/CX5000/DX5000/DX5050/ CX5900/CX6000/DX6000/DX6050 is constructed of a Scanner Carriage Unit, Scanner Motor, Scanner HP Sensor, etc., in the same way as previous A4 size scanners. 2.3.1 Scanner Carriage Mechanism 2.3.1.1 Scanner Carriage Unit Overview...
  • Page 81 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 2.3.1.2 Scanner Carriage Unit Movement Overview Drive of the Scanner Motor is transferred to the Scanner Carriage Unit by the Scanner Timing Belt. The Scanner Carriage Unit slides in the secondary scanning direction. Scanning image is performed in the main scan direction (=1 line) by the CIS board and The Scanner Motor uses a stepping motor and drives using open loop control.

  • Page 82: Electrical Circuit Operating Principles

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 2.4 Electrical Circuit Operating Principles 2.4.1 C610 PSB/PSE Board In the PSB/PSE Board of Stylus CX4900/CX4905/CX5000/DX5000/DX5050/ The electric circuit of the CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/ CX5900/CX6000/DX6000/DX6050, the simulated oscillating stimulation flyback CX6000/DX6000/DX6050 consists of the following boards. converter circuit method is used, and it supplies +42VDC to the drive line. The application of the output voltage is described below.

  • Page 83: C657 Main Board

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 2.4.2 C657 Main Board 2.4.2.1 Main Elements Table 2-9 (p.83) shows the function of the each main elements on C657 Main Board. The logic circuit of the C657 Main Board is composed of the follows;...
  • Page 84 (CN2) CN17 CR Encoder Sensor C610 I/F Board CN16 PW Sensor C610 PSB/PSE Board Note "*": EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050:C571PNL (CN12) EPSON Stylus CX5900/CX6000/DX6000/DX6050: C657PNL (CN18) Figure 2-17. Block Diagram For The C657 Main Board OPERATING PRINCIPLES Electrical Circuit Operating Principles...
  • Page 85 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 2.4.2.2 Print Head Driver Circuit Head Nozzle Driver Selector IC The Print Head driver circuit consists of the following two components: (IC8) +42V (IC7) Head common driver circuit (Common driver IC7 & Wave amplifier HDAC_D0...

  • Page 86: Motor Driver Circuit

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 2.4.2.3 Motor Driver Circuit +3.3V +42V +3.3V Motor Driver (IC5) (IC8) CR/PF Motor drive circuit CR-A OUT1A The motor driver IC (IC5) on the Main board drives CR/PF Motor. This product uses CR Motor CR-B...
  • Page 87 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 2.4.2.4 Combination Circuit RTC Circuit This printer differs from previous models by using a combination IC that integrates the By adoption of the large-capacity capacitor (C9) for timer, the Power-off timer can be reset circuit, EEPROM and RTC.
  • Page 88 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 2.4.2.5 Sensor Circuit PF Encoder Sensor The sensor is composed of a transmissive photo sensors mounted to the loop scale CPU (IC8) on the Main Board monitors the status of the printer by several sensors.
  • Page 89 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A The block diagram for the sensor circuit is shown below. +3.3V (IC8) +3.3V_SN +3.3V_SN AIN2 PE Sensor EVDD • PW Sensor LEDON • CR Encoder ENCA EA_CR Sensor ENCB EB_CR +3.3V +3.3V PG Sensor +3.3V +3.3V_SN...
  • Page 90 C H A P T E R TROUBLESHOOTING...

  • Page 91: Overview

    NOTE: The STM3 windows shown in the table in the following pages are the Motor Location Check point Resistance ones of Stylus CX4900/CX4905/CX5000/DX5000/DX5050, however, other models show almost the same displays as those except the following Pin 1 and 3 ± Scanner motor CN10 37Ω...
  • Page 92 “3-9 Check point for paper out error Reference Page according to each phenomenon” (p.95). according to each phenomenon” (p.99). according to each phenomenon” (p.100). Note : “–”: No change Note *1: Stylus CX4900/CX4905/CX5000/DX5000/DX5050 only *2: Stylus CX5900/CX6000/DX6000/DX6050 only TROUBLESHOOTING Error Indications and Fault Occurrence Causes...
  • Page 93 (p.104) Reference Page according to each phenomenon” (p.103). according to each phenomenon” (p.103). according to each phenomenon” (p.103). Note : “–”: No change Note *1: Stylus CX4900/CX4905/CX5000/DX5000/DX5050 only *2: Stylus CX5900/CX6000/DX6000/DX6050 only TROUBLESHOOTING Error Indications and Fault Occurrence Causes...
  • Page 94 “5.2.4 Waste Ink Pad Counter” (p.175). “3-12 Check point for fatal error Reference Page according to each phenomenon” (p.107). Note : “–”: No change Note *1: Stylus CX4900/CX4905/CX5000/DX5000/DX5050 only *2: Stylus CX5900/CX6000/DX6000/DX6050 only TROUBLESHOOTING Error Indications and Fault Occurrence Causes...

  • Page 95: Troubleshooting

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 3.3 Troubleshooting You can identify the troubles by using the checklist in this section after confirming the LED indication on the SPC. If you connect the SPC to your PC and see an error message on the STM3, you can short the total repair time.
  • Page 96 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-6. Check point for communication error according to each phenomenon Occurrence Defective timing Detailed phenomenon Check point Remedy unit/part name CR position 1. Check if the PS Board Connector Cable is connected to 1. Connect the PS Board Connector Cable to the CN1 on the Main Board.
  • Page 97 EEPROM on the Main Board. correct value to the EEPROM address. 2. Check if the Panel FFC is connected to the CN12 on the 2. Connect the Panel FFC to the CN12/CN18 on Main Board. <Stylus CX4900/CX4905/CX5000/ the Main Board. DX5000/DX5050> Panel FFC...
  • Page 98 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-7. Check point for error before the initial ink charge according to each phenomenon Occurrence Defective timing Detailed phenomenon Check point Remedy unit/part name CR position 1. Check if the Ink Cartridge can be used by installing it to 1.
  • Page 99 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-8. Check point for double feed error according to each phenomenon Occurrence Defective timing Detailed phenomenon Check point Remedy unit/part name CR position 1. Check if the Extension Spring Retard operates correctly 1. Set the Extension Spring Retard between the in the paper loading sequence.
  • Page 100 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-9. Check point for paper out error according to each phenomenon Occurrence Defective timing Detailed phenomenon Check point Remedy unit/part name CR position 1. Check if any paper dust is not adhered to the surface of 1.
  • Page 101 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-9. Check point for paper out error according to each phenomenon Occurrence Defective timing Detailed phenomenon Check point Remedy unit/part name CR position 1. Check if the Extension Spring 0.143 does not come off in 1.
  • Page 102 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-9. Check point for paper out error according to each phenomenon Occurrence Defective timing Detailed phenomenon Check point Remedy unit/part name CR position 1. Check if the Compression Spring 2.36 does not come off 1.
  • Page 103 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-10. Check point for no ink cartridge/CSIC error/incorrect ink cartridge according to each phenomenon Occurrence Defective timing Detailed phenomenon Check point Remedy unit/part name CR position 1. Check if Ink Cartridge is properly installed.
  • Page 104 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-11. Check point for paper jam error according to each phenomenon Occurrence Defective timing Detailed phenomenon Check point Remedy unit/part name CR position 1. Check if the ASF Unit is properly installed. 1. Install the ASF Unit properly.
  • Page 105 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-11. Check point for paper jam error according to each phenomenon Occurrence Defective timing Detailed phenomenon Check point Remedy unit/part name CR position 1. Check if the Extension Spring Retard operates correctly 1. Set the Extension Spring Retard between the in the paper loading sequence.
  • Page 106 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-11. Check point for paper jam error according to each phenomenon Occurrence Defective timing Detailed phenomenon Check point Remedy unit/part name CR position 3. Check if the Star Wheel Holders does not come off.
  • Page 107 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-12. Check point for fatal error according to each phenomenon Occurrence Defective timing Detailed phenomenon Check point Remedy unit/part name CR position 1. Check if the Scanner Motor Connector Cable is 1. Connect the Scanner Motor Connector Cable connected to CN10 on the Main Board.
  • Page 108 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-12. Check point for fatal error according to each phenomenon Occurrence Defective timing Detailed phenomenon Check point Remedy unit/part name CR position 1. Check if the Scanner HP Sensor Connector Cable is 1. Connect the Scanner HP Sensor Connector connected to CN13 on the Main Board.
  • Page 109 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-12. Check point for fatal error according to each phenomenon Occurrence Defective timing Detailed phenomenon Check point Remedy unit/part name CR position 1. Check if the Scanner Carriage Unit is not damaged. 1. Replace the Scanner Carriage Unit with a new one.
  • Page 110 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-12. Check point for fatal error according to each phenomenon Occurrence Defective timing Detailed phenomenon Check point Remedy unit/part name CR position 1. Check if the PF Motor Connector Cable is connected to 1. Connect the PF Motor Connector Cable to CN9 on the Main Board.
  • Page 111 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-12. Check point for fatal error according to each phenomenon Occurrence Defective timing Detailed phenomenon Check point Remedy unit/part name CR position 1. Check if the CR Scale does not come off or it properly 1.
  • Page 112 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-12. Check point for fatal error according to each phenomenon Occurrence Defective timing Detailed phenomenon Check point Remedy unit/part name CR position 1. Check if the PF Scale is not damaged or contaminated. 1. Replace the PF Scale with a new one.
  • Page 113 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-12. Check point for fatal error according to each phenomenon Occurrence Defective timing Detailed phenomenon Check point Remedy unit/part name CR position 1. Check if the Slider Lock Lever is correctly released by 1. Replace the Front Frame with a new one.

  • Page 114: Superficial Phenomenon-Based Troubleshooting

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 3.3.1 Superficial Phenomenon-Based Troubleshooting This section explains the fault locations of the error states (print quality and abnormal noise) other than the error states (LED and STM3) in the previous section. Table 3-13. Check point for multiple sheets of paper are always loaded without LEDs and STM3...
  • Page 115 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-14. Check point for the abnormal noise Occurrence Defective timing Detailed phenomenon Check point Remedy unit/part name CR position 1. Check if the grease on the Carriage Guide Shaft is 1. Wipe off the remaining grease on the sufficient.
  • Page 116 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-16. Check point for the poor printing quality Print Quality Defective Detailed phenomenon Check point Remedy State unit/part name 1. Check if there is not any foreign material/damage around 1. Remove the foreign material around the seal the seal rubber part on the Cap Unit.
  • Page 117 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-16. Check point for the poor printing quality Print Quality Defective Detailed phenomenon Check point Remedy State unit/part name 1. Check if the Head FFC is securely connected to the Print 1. Connect the Head FFC to the Print Head and Head Connectors and the Main Board Connectors (CN5, the Main Board Connectors.
  • Page 118 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-16. Check point for the poor printing quality Print Quality Defective Detailed phenomenon Check point Remedy State unit/part name 1. For printing in the Bi-D mode, check if Bi-D Adjustment 1. Perform Bi-D Adjustment to eliminate has been performed properly.
  • Page 119 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-16. Check point for the poor printing quality Print Quality Defective Detailed phenomenon Check point Remedy State unit/part name 1. Check if the suitable paper is used according to the printer Printer driver &...
  • Page 120 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-16. Check point for the poor printing quality Print Quality Defective Detailed phenomenon Check point Remedy State unit/part name 1. Check if any paper dust is not adhered to the surface of 1. Set a cleaning sheet in the ASF up side the LD Roller.
  • Page 121 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 3-16. Check point for the poor printing quality Print Quality Defective Detailed phenomenon Check point Remedy State unit/part name 1. Check if the Print Head Cover does not have the ink drop. 1. Clean the Print Head Cover carefully with a Print Head soft cloth.

  • Page 122: Chapter 4 Disassembly/Assembly

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

  • Page 123: Overview

    4.1.1 Precautions 4.1.2 Tools See the precautions given under the heading “WARNING” and “CAUTION” in the Use only specified tools to avoid damaging of the printer. following column when disassembling or assembling EPSON Stylus CX4900/ CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050. Table 4-1. Tools Name Supplier Part No.

  • Page 124: Work Completion Check

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.1.3 Work Completion Check Table 4-2. Work Completion Check Check If any service is made to the printer, use the checklist shown below to confirm all Classification Part Check Item Column works are completed properly and the printer is ready to be returned to the user.

  • Page 125: Procedual Differences Between The Models

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.1.4 Procedual Differences between the Models Some parts that are installed to Stylus CX4900/CX4905/CX5000/DX5000/DX5050 and Stylus CX5900/CX6000/DX6000/DX6050 differ from each other because of the difference in the Panel Unit. C H E C K Since Stylus CX5900/CX6000/DX6000/DX6050 model is used to...

  • Page 126: How To Ensure Of Quality On Re-Assembled Product

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision C 4.2 Caution regarding Assembling/Disassembling [Z-axis direction] • Align dowel of Housing Lower with positioning hole of Main Frame and of the Printer Mechanism, and How to Ensure ensure there is no gap. of Quality on Re-assembled Product...

  • Page 127: Disassembly Procedures

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.3 Disassembly Procedures The flowchart below shows step-by-step disassembly procedures. When disassembling each unit, refer to the page number shown in the figure. START “4.4.1 Document Cover/Document “4.4.4 Panel Unit” (p130) “4.4.3 Stacker Assy.” (p129) “4.4.2 Paper Support Assy.”...

  • Page 128: Printer Section

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4 Printer Section Part/Unit that should be removed before removing Document Cover/ Document Cover Mat/ASF Cover None 4.4.1 Document Cover/Document Cover Mat/ Removal procedure ASF Cover Document Cover Document Cover Open the Document Cover and remove it by pulling out upward.

  • Page 129: Paper Support Assy

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.2 Paper Support Assy. 4.4.3 Stacker Assy. External view External view Paper Support Assy. Housing. Lower ASF Unit Stacker Assy. Guide Pins Left Side Right Side Figure 4-3. Removing Paper Support Assy. Part/Unit that should be removed before removing Paper Support Assy.

  • Page 130: Panel Unit

    The removal procedures differ depending on the model. Lift up Part A, then slide the Panel Unit in the direction of the arrow to P O I N T For Stylus CX4900/CX4905/CX5000/DX5000/DX5050, see "4.6.1 remove the Panel Unit from the Housing, Upper.

  • Page 131: Scanner Unit

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.5 Scanner Unit Part/Unit that should be removed before removing Scanner Unit Document Cover / Panel Unit External view (1) Removal procedure Lift and release the tab (x1, ) that secure the USB Cover with a precision...

  • Page 132: Housing, Upper

    C H E C K The removal procedures differ depending on the model. P O I N T For Stylus CX4900/CX4905/CX5000/DX5000/DX5050, see "4.6.2 C H E C K Screw number 9 secure the Housing, Upper as well as a grounding P O I N T Housing, Upper (p170)".

  • Page 133: Printhead

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.7 Printhead Part/Unit that should be removed before removing Print Head Document Cover / Panel Unit / Scanner Unit / Housing, Upper External view Removal procedure Carriage Unit Release the Carriage Lock with a flathead screwdriver or a similar tool, and Carriage move the Carriage Unit to the center of the printer.
  • Page 134 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Disconnect the Head FFCs (x2) that are connected to the CSIC Board and the CR Encoder Board. Release the tabs (x2, ) that secure the Holder Board Assy, and remove the CSIC Connector Holder Board Assy upward.

  • Page 135: Cr Scale

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.8 CR Scale Part/Unit that should be removed before removing CR Scale Document Cover / Panel Unit / Scanner Unit / Housing, Upper External view Removal procedure Slit of CR Encoder Sensor Pay attention to the following instructions: C A U T I O N Do not touch the CR Scale with bare hands.

  • Page 136: Printer Mechanism/Housing, Lower

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.9 Printer Mechanism/Housing, Lower Part/Unit that should be removed before removing Printer Mechanism Document Cover / Panel Unit / Scanner Unit / Housing, Upper / Stacker Assy. External view (1) Removal procedure Tabs Remove the screw (x1,...
  • Page 137 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A External view (2) Remove the screws (x6, ) that secure the Printer Mechanism. Disconnect the PS Connector Cable from the connector (CN1) of the Main Board. Hold the designated position and lift Printer Mechanism upward...
  • Page 138 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A The assembled accuracy of each part composed of Printer mechanism is based on Housing Lower. To ensure the assembled accuracy, you have to control the assembled standard position of main frame against X/Y/Z-axis direction as the following figure.

  • Page 139: Ps Board Unit

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.10 PS Board Unit Part/Unit that should be removed before removing PS Board Unit Document Cover / Panel Unit / Scanner Unit / Housing, Upper / External view Printer Mechanism Removal procedure Acetate Peel off the acetate tapes (x2) that secure the PS Connector Cable.

  • Page 140: Waste Ink Pads/Stacker Lock/Pg Lever/Rubber Feet

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.11 Waste Ink Pads/Stacker Lock/PG Lever/Rubber Feet Part/Unit that should be removed before removing Waste Ink Pads/ Stacker Lock/PG Lever/Rubber Feet External view (1) Document Cover / Panel Unit / Scanner Unit / Housing, Upper / Stacker Assy. /...
  • Page 141 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A When installing the Waste Ink Pads, Waste Ink Cover and the When installing the Waste Ink Cover to the Housing, Lower, Diffusion Sheet, be sure to follow the steps below. match the guide pin (x1, ) of the Housing, Lower with the positioning hole (x1) of the Waste Ink Cover.
  • Page 142 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A External view (2) Stacker Lock Removal Remove the tabs (x2, ) that secure the Stacker Lock, and remove the Compression Spring 5.1 Inner Surface PG Lever PG Lever Mounting Plate Stacker Lock and Compression Spring 5.1 from the Housing, Lower.

  • Page 143: Main Board Unit/Card Slot Unit

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.12 Main Board Unit/Card Slot Unit Part/Unit that should be removed before removing Main Board Unit Document Cover / Panel Unit / Scanner Unit / Housing, Upper / Housing, Lower External view (1) Removal procedure...
  • Page 144 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A External view (2) Card Slot Unit Removal Remove the screws (x2, ) that secure the Card Slot Unit, and remove the Card Slot Unit from the Main Board Unit. Guide Pins Positioning Holes Release the tip of the Card Slot Spring from the tab (x1, ) of the Card Slot Housing, and remove the Card Slot Spring.
  • Page 145 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A PF Scale Sensor positioning adjustment A D J U S T M E N T After removing/replacing the Main Board Unit, perform the R E Q U I R E D Use the following procedure to confirm that the PF Scale is adjustment referring to Table 5-1."Required Adjustments"...

  • Page 146: Asf Unit

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.13 ASF Unit Part/Unit that should be removed before removing ASF Unit Document Cover / Panel Unit / Scanner Unit / Housing, Upper / Housing, Lower External view (1) Removal procedure Main Board Unit Peel off the acetate tape (x1) that secures the PE Sensor Connector Cable to...
  • Page 147 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A External view (2) Open the Hopper, and remove Compression Spring 5.58. Remove the washer that secures the left shaft of the Paper Back Lever. Hopper Pad Hopper Do not touch the Retard Roller and the Hopper Pad.

  • Page 148: Holder Shaft Unit

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.14 Holder Shaft Unit Part/Unit that should be removed before removing Holder Shaft Unit Document Cover / Panel Unit / Scanner Unit / Housing, Upper / Housing, Lower / External view ASF Unit Removal procedure Main Board Unit C.B.S.

  • Page 149: Spur Gear 36.8/Extension Spring 0.143/Clutch

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.15 Spur Gear 36.8/Extension Spring 0.143/Clutch Part/Unit that should be removed before removing Spur Gear 36.8/ Extension Spring 0.143/Clutch External view Document Cover / Panel Unit / Scanner Unit / Housing, Upper / Housing, Lower /...

  • Page 150: Pe Sensor Board/Pe Sensor Lever

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.16 PE Sensor Board/PE Sensor Lever Part/Unit that should be removed before removing PE Sensor Board/ PE Sensor Lever External view Document Cover / Panel Unit / Scanner Unit / Housing, Upper / Housing, Lower / ASF Unit / Holder Shaft Unit / Spur Gear 36.8 / Extension Spring 0.143 / Clutch...

  • Page 151: Cr Guide Frame

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.17 CR Guide Frame Part/Unit that should be removed before removing CR Guide Frame Document Cover / Panel Unit / Scanner Unit / Housing, Upper / Housing, Lower / External view Main Board Unit Removal procedure...

  • Page 152: Cr Motor

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.18 CR Motor Part/Unit that should be removed before removing CR Motor Document Cover / Panel Unit / Scanner Unit / Housing, Upper / Housing, Lower / External view Main Board Unit / CR Guide Frame...

  • Page 153: Pf Motor

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.19 PF Motor Part/Unit that should be removed before removing PF Motor Document Cover / Panel Unit / Scanner Unit / Housing, Upper / Housing, Lower / External view Main Board Unit Removal procedure CR Motor...

  • Page 154: Carriage Unit/Cr Encoder Board/Pw Sensor Board/Head Ffc

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.20 Carriage Unit/CR Encoder Board/PW Sensor Part/Unit that should be removed before removing Carriage Unit/ CR Encoder Board/PW Sensor Board/Head FFC Board/Head FFC Document Cover / Panel Unit / Scanner Unit / Housing, Upper / Housing, Lower /...
  • Page 155 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A External view (2) Remove the Carriage Unit and the Carriage Guide Shaft from Printer Mechanism as follows. Lift up the left end of the Carriage Guide Shaft and shift to the left until Carriage Unit the right end is released from the notch of the Main Frame.
  • Page 156 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A External view (3) CR Encoder Removal Disconnect the Head FFC from the connector of the CR Encoder Board, and Connector C.B.P. (P1) 1.7x5 F/ZB PW Sensor CR Encoder Board pull out the Head FFC from the notch of Carriage.

  • Page 157: Paper Guide Upper Unit

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.21 Paper Guide Upper Unit Part/Unit that should be removed before removing Paper Guide Upper Unit Document Cover / Panel Unit / Scanner Unit / Housing, Upper / Housing, Lower / External view Main Board Unit / CR Guide Frame / CR Motor / CR Scale / Carriage Unit...

  • Page 158: Front Frame

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.22 Front Frame Part/Unit that should be removed before removing Front Frame Document Cover / Panel Unit / Scanner Unit / Housing, Upper / Housing, Lower / External view Main Board Unit / CR Guide Frame / CR Motor / CR Scale / Carriage Unit...

  • Page 159: Chapter 3 Troubleshooting

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.23 EJ Frame Unit Part/Unit that should be removed before removing EJ Frame Unit Document Cover / Panel Unit / Scanner Unit / Housing, Upper / Housing, Lower / External view (1) Main Board Unit / CR Guide Frame / CR Motor / CR Scale / Carriage Unit / Front...
  • Page 160 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A External view (2) Remove the right Bush 5 from the EJ Frame Unit. Remove the screw (x1, ) that secures the EJ Frame Grounding Plate, and remove the EJ Frame Grounding Plate. Left Side Right Side...

  • Page 161: Ink System Unit

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.24 Ink System Unit Part/Unit that should be removed before removing Ink System Unit Document Cover / Panel Unit / Scanner Unit / Housing, Upper / Housing, Lower / External view Main Board Unit / ASF Unit / Holder Shaft Unit / CR Guide Frame / CR Motor /...

  • Page 162: Paper Guide Front Unit

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.25 Paper Guide Front Unit Part/Unit that should be removed before removing Paper Guide Front Unit Document Cover / Panel Unit / Scanner Unit / Housing, Upper / Printer Mechanism / External view Main Board Unit / ASF Unit / Holder Shaft Unit / CR Guide Frame / CR Motor / CR Scale /...

  • Page 163: Pg Sensor

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.26 PG Sensor Part/Unit that should be removed before removing PG Sensor Document Cover / Panel Unit / Scanner Unit /Housing, Upper / Printer Mechanism / External view Main Board Unit / ASF Unit / Holder Shaft Unit / CR Guide Frame / CR Motor / CR Scale /...

  • Page 164: Pf Roller Unit

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.4.27 PF Roller Unit Part/Unit that should be removed before removing PF Roller Unit Document Cover / Scanner Unit / Panel Unit / Housing Upper / Printer Mechanism / Main External view (1) Board Unit / ASF Unit / Holder Shaft Unit / CR Guide Frame / CR motor / CR Scale /...

  • Page 165: Scanner Section

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.5 Scanner Section Part/Unit that should be removed before removing Scanner Housing, Upper Document Cover / Panel Unit / Scanner Unit Removal procedure 4.5.1 Scanner Housing, Upper Following work should be performed in a room where there is a...
  • Page 166 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.5.2 Scanner Carriage Unit Part/Unit that should be removed before removing Scanner Carriage Unit Document Cover / Panel Unit / Scanner Unit / Scanner Housing, Upper External view (1) Removal procedure Scanner Carriage Unit Do not scratch the Rod Lens Array when removing the Scanner C A U T I O N Carriage Unit.
  • Page 167 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A External view (2) Open and slide the CIS Unit toward right, and remove the CIS Unit from the Scanner CR Holder. Remove the CIS Spring (x2) from the Scanner CR Holder. CIS Unit Shafts Release the tabs (x2, ) that secure the Belt Clump with a tweezer.

  • Page 168: Scanner Motor Unit/Scanner Hp Sensor/Driven Pulley

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.5.3 Scanner Motor Unit/Scanner HP Sensor/ Part/Unit that should be removed before removing Scanner Motor Unit/ Scanner HP Sensor/Driven Holder Driven Pulley Document Cover / Panel Unit / Scanner Unit / Scanner Housing, Upper External view Removal procedure Move the Scanner Carriage Unit to the center of the Scanner Unit.

  • Page 169: Panel Unit

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 4.6 Removal procedure Specific to Stylus CX4900/ Part/Unit that should be removed before removing Panel Unit CX4905/CX5000/DX5000/DX5050 None Removal procedure Release the tabs (x3, ) that secure the Panel Cover with a precision 4.6.1 Panel Unit screwdriver (-), and remove the Panel Cover in the order shown in the figure.

  • Page 170: Housing, Upper

    Housing, Upper. Tighten the screws in the order as shown in the figure. Housing, Upper C.B.P. 3x10 F/Zn (4±1kgfcm) C.B.S. 3x6 F/Zn (4±1kgfcm) Figure 4-60. Removing Housing, Upper DISASSEMBLY/ASSEMBLY Removal procedure Specific to Stylus CX4900/CX4905/CX5000/DX5000/DX5050...

  • Page 171: Chapter 5 Adjustment

    C H A P T E R ADJUSTMENT...

  • Page 172: Overview

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 5.1 Overview 5.1.1 Required Adjustments The following table indicates the adjustment items for replacement parts. This section describes the procedure for adjustments required when the printer is Note : “O” in this table indicates the adjustment item that require execution when the disassembled and assembled for repair or service.
  • Page 173 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 5-1. Required Adjustments Priority Adjustment item Replaced part removal replacement (read OK) Main board Ink Pads replacement (read NG) Input Max. must be value (3000) replaced removal Holder shaft unit replacement removal EJ frame unit...
  • Page 174 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 5-1. Required Adjustments Priority Adjustment item Replaced part removal PW sensor replacement removal CR unit replacement removal CR guide shaft replacement removal PF roller assy replacement removal Ink system unit replacement When the Main board is replaced with a new one, you may have...

  • Page 175: Adjustment By Using Adjustment Program

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 5.2 Adjustment by Using Adjustment Program 5.2.1 EEPROM Data Copy Adjustment procedure The procedures of the adjustment items will be explained here. The intended item is as Select “EEPROM Data Copy” in the Adjustment Program.

  • Page 176: Ink Charge

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 5.2.5 Ink Charge 5.2.8 First Dot Adjustment Adjustment procedure Adjustment procedure Select “Ink charge” in the Adjustment Program. Set Photo Paper A4/Letter on the Paper Support. Click the [Ink charge] button to perform the initial ink charge setting.

  • Page 177: Pw Sensor Adjustment

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 5.2.9 PW Sensor Adjustment 5.2.10 Head Angular Adjustment Adjustment procedure Adjustment procedure Set Photo Paper A4/Letter on the Paper Support. Set Normal Paper A4/Letter on the Paper Support. Select “PW adjustment” in the Adjustment Program.

  • Page 178: Bi-D Adjustment

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 5.2.11 Bi-D adjustment 5.2.12 Initialize PF Deterioration Offset Adjustment procedure C H E C K Be sure to close the Scanner unit before performing Bi-D Adjustment. Select “Initialize PF deterioration offset” in the Adjustment Program.

  • Page 179: Pf Adjustment

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 5.2.15 PF Adjustment SELECTING THE VALUE FOR THE BEST PATCH Adjustment procedure Procedure Examine the printed pattern and select a value for each of the top and bottom. Examine the printed patches from the left and select a value for the patch with Input the value selected in Step 1 and print the PF adjustment check pattern.
  • Page 180 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Examine the printed patches from the right and select a value for the patch CHECKING THE PF ADJUSTMENT CHECK PATTERN with least white lines on its lower (bottom) area. If two or more patches are found as the best patch, be sure to select a value for the right most one.

  • Page 181: Pf Band Adjustment

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 5.2.16 PF Band Adjustment Procedure Load an A4-sized plain paper on the ASF. Select “PF Adjustment” from the adjustment program. Click [Print] to print the PF band adjustment pattern. Examine the printed pattern from the group with a minus value and select a value for the first group of blocks that has no gap or overlap.

  • Page 182: Adjustment Except Adjustment Program

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 5.3 Adjustment Except Adjustment Program Release the Carriage Lock if the Carriage Unit is locked. Set the thickness gauge at the position shown by the figure. The thickness gauge should be placed between the front of the Paper Guide Front Unit and Following is adjustment except Adjustment Program.
  • Page 183 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Accede to following steps until you’ve completed the left side PG adjustment. If you push the Carriage Unit directly, it’s possible to damage C A U T I O N the Print Head surface by the friction with the thickness gauge.
  • Page 184 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 11. Loosen the screw (C.B.S 3x6) for securing the Parallel Adjustment Lever 13. Move the Carriage Unit on the thickness gauge by using the Timing Belt, and (Right). check whether the thickness gauge moves or not.
  • Page 185 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 14. Accede to following steps until you’ve completed the right side PG 17. Accede to following steps to check left side PG again. adjustment. START START Step 13 Move the Carriage Unit by Move the Carriage Unit by using the Timing Belt.

  • Page 186: Pf Scale Sensor Positioning Adjustment

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 5.3.2 PF Scale Sensor Positioning Adjustment Parts to be Removed and Replaced Replacement of Main Board Unit Replacement of PF Roller Unit Adjustment procedure Test fit Main Board Unit, and confirm whether or not PF Scale is positioned in the center of PF Sensor.

  • Page 187: Original Adjustment

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 5.3.3 Original Adjustment Open the document cover, and place the original adjustment jig as shown in the figure below. Parts to be removed and replaced Place the jig against the upper left corner Replacement of Scanner Housing, Upper...
  • Page 188 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Click the “SGL” icon in the “EPSON Scanner Function Test - WriteZero for A progress bar will be displayed followed by the window shown below. service” window. <Window displayed when the adjustment is completed successfully>...
  • Page 189 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A <Window displayed when the adjustment has failed> Figure 5-31. Window displayed when the adjustment has failed If the adjustment cannot be completed successfully, check whether the parts are correctly installed or not. If there is a problem, perform the part replacement once again.

  • Page 190: Chapter 6 Maintenance

    C H A P T E R MAINTENANCE...

  • Page 191: Overview

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 6.1 Overview LD Roller When paper loading function does not operate because friction of the LD Roller is lowered by any paper dust, set the adhesive side up of the cleaning sheet (included This section provides information to maintain the printer in its optimum condition.
  • Page 192 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Select the “EPSON Status Monitor 3” in the printer driver utility, and make sure Maintenance request error (Maintenance call error) that the printer is in stand-by state by using the Status monitor 3. If the printer is in Ink is used for the Print Head cleaning operation as well as the printing operation.

  • Page 193: Lubrication

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 6.1.3 Lubrication Refer to the following figures for the lubrication points. The characteristics of the grease have great affects on the mechanical function and <Lubrication Point> durability, especially does the characteristics about temperature environment. The type...
  • Page 194 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A <Lubrication Point> <Lubrication Point> Left Side Front Paper Guide Support 1. Paper Back Lever Surface Contact areas between the EJ Roller Unit and the five tabs of the 2. Hopper Surface Front Paper Guide Support.
  • Page 195 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A <Lubrication Point> <Lubrication Point> 1. Edge line of the Link Lever Contact point between the PF Link Lever Holder (Left) (Left) Grounding Spring and the PF Roller Unit PF Grounding Spring 2. Around two guide pins of the Link Lever Holder (Left) <Lubrication Type>...

  • Page 196: Chapter 7 Appendix

    C H A P T E R APPENDIX...

  • Page 197: Connector Summary

    7.1 Connector Summary USB Host CN16 I/F Board C H E C K The Panel Board for Stylus CX4900/CX4905/CX5000/DX5000/ P O I N T C610 PSB/PSE DX5050 is different to Stylus CX5900/CX6000/DX6000/DX6050. USB2.0 I/F Note that different panels are connected to different connectors on the Main Board.
  • Page 198 — Ground CN18 For connection with the Panel Board (C657 PNL) Table 7-16 (p.201) Head drive pulse (trapezoid waveform) Note *1: Stylus CX4900/CX4905/CX5000/DX5000/DX5050 only GND2 — Ground *2: Stylus CX5900/CX6000/DX6000/DX6050 only Head drive pulse (trapezoid waveform) Table 7-2. CN1 - Power Supply Board...
  • Page 199 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 7-6. CN6 - Print Head Table 7-8. CN8 - CR Motor Signal Name Function Signal Name Function GND2 — Ground CR-A CR Motor drive signal (A) Head drive pulse (trapezoid waveform) CR-B CR Motor drive signal (B) GND2 —...
  • Page 200 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 7-14. CN14 - Memory Card Table 7-12. CN12 - C571 Panel Board (Stylus CX4900/CX4905/CX5000/DX5000/DX5050 only) Signal Name Function Address bus for CF slot (7) Signal Name Function — Power supply for CompactFlash — Ground Address bus for CF slot (6) +3.3 V...
  • Page 201 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 7-14. CN14 - Memory Card Table 7-15. CN15 - Memory Card Signal Name Function Signal Name Function RESET Reset XD_WPB /WAIT Bus cycle extension Ground INPACK Input port response XD_DO xD-Picture Card Data (Bit 0)
  • Page 202 EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A Table 7-17. CN17 - CR Encoder/PW Sensor Signal Name Function Power Sensor Signal — Ground LEDON — Power supply for PW sensor — Not connected — Ground ENCB Encoder feed back signal ch.B EVDD Power for CR Encoder ENCA Encoder feed back signal ch.A...

  • Page 203: Electrical Circuits

    The electric circuit diagrams below are shown at the following pages: C657 Main control circuit board C610 PSB/PSE power supply circuit board C571* /C657* Panel circuit board C610 I/F circuit board C654 HEAD circuit board Note *1: Stylus CX4900/CX4905/CX5000/DX5000/DX5050 only *2: Stylus CX5900/CX6000/DX6000/DX6050 only APPENDIX Electrical Circuits...
  • Page 204 Model : PX-A720 Stylus CX4900/CX4905/CX5000/DX5000/DX5050/ CX5900/CX6000/DX6000/DX6050 Board : C657 MAIN Rev. : D Sheet : 1/2...
  • Page 205 Model : PX-A720 Stylus CX4900/CX4905/CX5000/DX5000/DX5050/ CX5900/CX6000/DX6000/DX6050 Board : C657 MAIN Rev. : C Sheet : 2/2...
  • Page 206 Model : PX-A720 Stylus CX4900/CX4905/CX5000/DX5000/DX5050/ CX5900/CX6000/DX6000/DX6050 Board : C610 PSB Rev. : C Sheet : 1/1...
  • Page 207 Model : Stylus CX4900/CX4905/CX5000/DX5000/DX5050/ CX5900/CX6000/DX6000/DX6050 Board : C610 PSE Rev. : B Sheet : 1/1...
  • Page 208 Model : Stylus CX4900/CX4905/CX5000/DX5000/DX5050 Board : C571 PNL Rev. : D Sheet : 1/1...
  • Page 209 Model : PX-A720 Stylus CX5900/CX6000/DX6000/DX6050 Board : C657 PNL Rev. : D Sheet : 1/1...
  • Page 210 Model : PX-A720 Stylus CX4900/CX4905/CX5000/DX5000/DX5050/ CX5900/CX6000/DX6000/DX6050 Board : C610 I/F Rev. : B Sheet : 1/1...
  • Page 211 Model : PX-A720 Stylus CX4900/CX4905/CX5000/DX5000/DX5050/ CX5900/CX6000/DX6000/DX6050 Board : C654 HEAD Rev. : A Sheet : 1/1...

  • Page 212: Exploded Diagram/Service Parts List

    EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050 Revision A 7.3 Exploded Diagram/Service Parts List This manual does not provide the exploded diagrams and the parts list. See SPI (Service Parts Information) for details. APPENDIX Exploded Diagram/Service Parts List...
  • Page 213 (except C657091, C657111) EPSON STYLUS CX5900/CX6000/DX6050/PX-A720 Rev.02 C657-CASE-0012...
  • Page 214 EPSON STYLUS CX5900/CX6000/DX6000/DX6050/PX-A720 Rev.01 C657-CASE-002...
  • Page 215 EPSON STYLUS CX5900/CX6000/DX6050/PX-A720 Rev.01 C657-MECH-001...
  • Page 216 EPSON STYLUS CX5900/CX6000/DX6050/PX-A720 Rev.01 C657-MECH-002...
  • Page 217 EPSON STYLUS CX5900/CX6000/DX6050/PX-A720 Rev.01 C657-ELEC-001...

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