Lexmark C925 Product Study Manual
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Lexmark C925 Product Study Manual

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See also: Administrator's Manual , Service Manual
 
Lexmark C925/X925
Color Product Study Guide

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Summary of Contents for Lexmark C925

  • Page 1   Lexmark C925/X925 Color Product Study Guide...
  • Page 2 THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 3 Lexmark and Lexmark with diamond design are trademarks of Lexmark International, Inc., registered in the United States and/or other countries.
  • Page 4 Lexmark C925/X925 Color Product Study Guide Rev 2.3 THIS PAGE INTENTIONALLY LEFT BLANK For Training Purposes Only 6/21/2011...

  • Page 5: Table Of Contents

    ......................12 LECTROPHOTOGRAPHIC ROCESS ........................14 APER RANSPORT YSTEM Paper Feed Mechanism ......................... 14 C925 and X925 Print Engine Paper Path ..................23 C925 Paper Jam Locations......................24 X925 Paper Jam Locations......................25 C925 X925 K ................26 OMPONENTS ROSS...
  • Page 6 Lexmark C925/X925 Color Product Study Guide Rev 2.3 X925 ADF S ..................28 CANNER HEORY OF PERATION ADF Key Components ........................30 ADF Paper Path ..........................32 OPERATOR PANEL AND MENUS ................34 C925 O ........................34 PERATOR ANEL C925 Home Screen........................35 C925 Home Screen Buttons ......................
  • Page 7 Lexmark C925/X925 Color Product Study Guide Rev 2.3 CCD A .........................57 SSEMBLY ..................58 IRRORED RINTHEAD ETTINGS OMPONENTS Engine Board ...........................58 Printhead Controller Board ...................... 58 NVRAM C ......................58 IRRORED OMPONENTS Operator panel UICC Card ...................... 58 RIP Board ..........................
  • Page 8 Lexmark C925/X925 Color Product Study Guide Rev 2.3 THIS PAGE INTENTIONALLY LEFT BLANK For Training Purposes Only 6/21/2011...

  • Page 9: Tli, Type And Serial Number Location

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 TLI, Type and Serial Number Location To find the TLI, printer Type and Serial number, open the front cover and look inside the machine on the left hand side. For Training Purposes Only...

  • Page 10: C925 Technical Information

    Optional Furniture Caster Base ISP Slot for C925 is optional and contained in an external housing. Supported combination if both slots used: DLE + user flash, DLE + Font, Font + User Flash. The C925 is a single function wide format color LED printer.

  • Page 11: Duty Cycle

    Average Monthly Page Volume is an average range of pages customers plan to print on the device each month. Lexmark recommends that the number of pages per month be within the stated range for optimum device performance, based on factors including: supplies replacement intervals, paper loading intervals, speed, and typical customer usage.

  • Page 12: Media Options

    • One part number orders both pieces. Important: No previous stands or carts are approved for use with the C925/X925 family; they should not be proposed or recommended. The authoritative tables of maximum Printer Paper Options/Furniture combinations are publicly available at www.lexmark.com/multifunctionprinters.

  • Page 13: C925 Imaging Units

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 C925 Imaging Units Approximate Aftermarket Version Ships with printer Yield Available Imaging Units C,Y,M,K 30,000¹ pages ¹ Imaging Unit maximum yield estimate based on 3 average letter/A4-size pages per print job. Actual yield may vary based on other factors such as device speed, paper size and feed orientation, toner coverage, tray source, percentage of black-only printing and average print job complexity.

  • Page 14: X925 Technical Information

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 X925 Technical Information Specifications X925 Processor Speed and Type 1GHZ, IBM Memory Standard 512 MB (Max 1.5 GB) Optional Memory 256MB, 512MB and 1024 MB DDR2 SODIMM Optional Flash Memory 256 MB...

  • Page 15: Duty Cycle

    Average Monthly Page Volume is an average range of pages customers plan to print on the device each month. Lexmark recommends that the number of pages per month be within the stated range for optimum device performance, based on factors including: supplies replacement intervals, paper loading intervals, speed, and typical customer usage.
  • Page 16 Lexmark C925/X925 Color Product Study Guide Rev 2.3 • LDSS • eSF – supported via custom application Any fax resolution that can be received can also be forwarded Caller ID If subscribed to Caller ID from phone provider Manual Fax...

  • Page 17: Scanner Specifications

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 Scanner Specifications Scanner Scanner Type Color Flatbed Scanner with ADF Scan Technology Charge Coupled Device (CCD) Light Source White LED “Instant On” Number of Light Sources 1 LED array per CCD Module...

  • Page 18: Media Options

    • One part number orders both pieces. Important: No previous stands or carts are approved for use with the C925/X925 family; they should not be proposed or recommended. The authoritative tables of maximum Printer Paper Options/Furniture combinations are publicly available at www.lexmark.com/multifunctionprinters.

  • Page 19: X925 Imaging Units

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 X925 Imaging Units Approximate Aftermarket Version Ships with printer Yield Available Imaging Units C,Y,M,K 30,000¹ pages ¹ Imaging Unit maximum yield estimate based on 3 average letter/A4-size pages per print job. Actual yield may vary based on other factors such as device speed, paper size and feed orientation, toner coverage, tray source, percentage of black-only printing and average print job complexity.

  • Page 20: Theory Of Operation

    Understanding the EP Process is the key to troubleshooting print quality problems. The following page illustrates the EP Components in a cross-sectional of a C925/X925 printer. A more detailed cross-sectional is found later in this section.
  • Page 21 Lexmark C925/X925 Color Product Study Guide Rev 2.3 EP Process Components Cross-sectional Cleaning Blade Fuser LED Printhead (Transfer Belt) Charge Roll Cleaning Blade Cleaning Blade (Photoconductor) (Photoconductor) Transfer Roller Photoconductor Drum Developer Roller Transfer Roller Transfer Belt Waste Toner Box...

  • Page 22: Paper Transport System

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 Paper Transport System Paper Feed Mechanism The standard paper feed sources consist of Tray 1, Tray 2, and a Multipurpose (MPF) Tray. The paper feed system on the paper cassettes uses a separation roll/torque limiter to prevent multiple feeds. The MFP, on the other hand, uses a separation pad.
  • Page 23 Lexmark C925/X925 Color Product Study Guide Rev 2.3 Integrated Tray 2 Tray 2 uses a motorized lift plate to engage the media in the tray with the pick roll. Tray 2 holds approximately 250 sheets of 20lb paper. Upper Limit...
  • Page 24 Lexmark C925/X925 Color Product Study Guide Rev 2.3 Optional Paper Trays (3-5) Trays 3 through Tray 5 use a motorized lift mechanism to engage the media in the tray with the pick roll and can hold up to 500 sheets of 20lb paper.
  • Page 25 Lexmark C925/X925 Color Product Study Guide Rev 2.3 Tray Paper Feed The printer controller sends a signal to turn on the paper feed clutch; the pick roll grabs the top sheet of paper while the separation roll rotates backwards to prevent multiple sheets of paper from feeding. The paper moves to the feed roller and is fed into the paper path.
  • Page 26 Lexmark C925/X925 Color Product Study Guide Rev 2.3 MPF Paper Feed To start the paper feed, the printer controller sends a signal to turn on the MPF feed clutch; the paper feed motor starts turning the Paper Feed Roller to feed the top sheet of paper in the MPF tray one by one.
  • Page 27 Lexmark C925/X925 Color Product Study Guide Rev 2.3 Registration Unit As the media trips the Registration Sensor, it briefly stops at the two Registration Rolls. Here, the leading edge is adjusted so it is parallel with the image on the Transfer Belt and synchronized with the Belt’s rotation.
  • Page 28 Lexmark C925/X925 Color Product Study Guide Rev 2.3 Fuser The media passes the Fuser Entry Detection Sensor and enters the Fuser. Here, heat and pressure are applied to the page to bond the image permanently to the media. The toner is impregnated with wax, so it releases from the fuser rolls without the need of a wiper or oil coating roller.
  • Page 29 EP paper path. Note: Once the media reaches the Duplex Exit/MPF detection lever, it shares the same paper path as the MPF. The following page illustrates the Duplex paper transport in a cross-sectional of a C925/X925 printer. For Training Purposes Only 6/21/2011...
  • Page 30 Lexmark C925/X925 Color Product Study Guide Rev 2.3 Duplex Paper Transport Paper Exit Roll Duplex entry Roller Paper Paper Exit Sensor Timing Belt Fuser Exit Roll Duplex Clutch Timing Belt Transfer Roll MPF Registration Roller Paper Lower Duplex Transport Roll...

  • Page 31: C925 And X925 Print Engine Paper Path

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 C925 and X925 Print Engine Paper Path Simplex Paper Path Duplex Paper Path For Training Purposes Only 6/21/2011...

  • Page 32: C925 Paper Jam Locations

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 C925 Paper Jam Locations Area Explanation Message 200.xx Paper jam in the transfer / carry area. 201.xx Paper jam in the fuser entry area. Paper jam at the paper exit area. Paper jam in the duplex.

  • Page 33: X925 Paper Jam Locations

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 X925 Paper Jam Locations Area Explanation Message 283.05 Scan Sensor Jams 290.11 Scanner ADF Cover Open Jam 283.01 Scanner Static Jam - Scan Sensor Jams 280.06 Paper Missing 285.05 Scanner ADF Eject Jam 200.xx...

  • Page 34: C925 And X925 Key Components Cross-Sectional

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 C925 and X925 Key Components Cross-sectional Table of components located on the next page For Training Purposes Only 6/21/2011...
  • Page 35 Lexmark C925/X925 Color Product Study Guide Rev 2.3 Table of Components Charge Roll Press Roll Duplex Bottom Transport Roll LED Head Transfer Belt Duplex Exit Roll Developer Roll Transfer Belt Drive Roll Paper Exit Roll Primary Transfer Roller Pickup Roll (MP Feeder)

  • Page 36: X925 Adf Scanner Theory Of Operation

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 X925 ADF Scanner Theory of Operation The X925 duplex ADF enables the user to create duplex scans automatically, eliminating the need to flip the media over in order to duplicate it. The ADF uses a step motor and a series of sensors to determine the media’s position in the paper path during the scan process.
  • Page 37 Lexmark C925/X925 Color Product Study Guide Rev 2.3 • Once the trailing edge of the scan media reaches the ADF scan sensor, the sensor moves to the off position and the image acquisition process continues for a pre-calculated length of time.

  • Page 38: Adf Key Components

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 ADF Key Components Table of component numbers located on the next page For Training Purposes Only 6/21/2011...
  • Page 39 Lexmark C925/X925 Color Product Study Guide Rev 2.3 Affected CRU / FRU part catalog Number Part name name ADF paper length and width sensors - photo reflect / Tray paper size sensor multi-point contact Paper pass sensor -photo reflect Duplex timing sensor...

  • Page 40: Adf Paper Path

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 ADF Paper Path Duplex Simplex Entrance (text up) Simplex Exit (paper will re‐enter  for duplex scanning) Flatbed CCD  Duplex Entrance Duplex Exit (paper re‐enters  path to be turned face down)  Flatbed CCD  Final pass entrance (Turning  Paper after Duplex scan) Paper Exit (Text down) Flatbed CCD  For Training Purposes Only 6/21/2011...
  • Page 41 Lexmark C925/X925 Color Product Study Guide Rev 2.3 Simplex Simplex Entrance (text up) Simplex Exit (text down) Flatbed CCD  For Training Purposes Only 6/21/2011...

  • Page 42: Operator Panel And Menus

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 Operator Panel and Menus C925 Operator Panel Number Item Description Display Shows the status of the printer Home Lets you navigate back to the home screen Keypad Allows you to enter numbers, letters, or symbols...

  • Page 43: C925 Home Screen

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 C925 Home Screen The following page contains a detailed description of the Home Screen buttons and their functions. For Training Purposes Only 6/21/2011...

  • Page 44: C925 Home Screen Buttons

    USB container or print job names for supported file types Depending on your configuration, not all buttons may appear. For a complete listing of Home Screen buttons and their functions, please see the Lexmark C925 or X925 User’s Guide. For Training Purposes Only...

  • Page 45: C925 Administrative (Customer) Menu

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 C925 Administrative (Customer) Menu For a complete listing of the printer menu tree, consult the User’s Guide. C925 Administrative (Customer) Menu Tree Supplies Menu Paper Menu Reports Network/Ports Replace Supply Default Source...

  • Page 46: C925 Service Menus

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 C925 Service Menus Several hidden menus exist to configure advanced settings, troubleshoot problems or obtain additional printer information. The settings contained in these menus should not be changed unless it is specifically requested by the Service Manual or technical support. Changing the settings may cause improper operation of the printer.
  • Page 47 Lexmark C925/X925 Color Product Study Guide Rev 2.3 In the Administration (Customer) Menu, select the Network/Ports Menu. Select Standard Network. Select STD NET SETUP. The Network SE menu contains advanced network menu tools. Network SE Warning: Changing the settings within...

  • Page 48: X925 Operator Panel

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 X925 Operator Panel Number Item Description Display Shows the status of the printer • Off – The printer is off. • Blinking green – The printer is warming up, processing data, or printing.

  • Page 49: X925 Home Screen

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 X925 Home Screen The following page contains a detailed description of the Home Screen buttons and their functions. For Training Purposes Only 6/21/2011...

  • Page 50: X925 Home Screen Buttons

    Opens a context-sensitive Help feature within the display touch screens Depending on your configuration, not all buttons may appear. For a complete listing of Home Screen buttons and their functions, please see the Lexmark C925 or X925 User’s Guide. For Training Purposes Only...

  • Page 51: X925 Administrative (Customer) Menu

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 X925 Administrative (Customer) Menu For a complete listing of the printer menu tree, consult the User’s Guide. Not all menus are available for all models (ex. Wireless Menus). The menus commonly accessed are highlighted in blue.

  • Page 52: X925 Service Menus

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 X925 Service Menus Several hidden menus exist to configure advanced settings, troubleshoot problems or obtain additional printer information. The settings contained in these menus should not be changed unless it is specifically requested by the Service Manual or technical support. Changing the settings may cause improper operation of the printer.
  • Page 53 Lexmark C925/X925 Color Product Study Guide Rev 2.3 In the Administration (Customer) Menu, select the Network/Ports Menu. Select Standard Network. Select STD NET SETUP. The Network SE menu contains advanced network menu tools. Network SE Warning: Changing the settings within...

  • Page 54: Print Quality Diagnostic Tips

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 Print Quality Diagnostic Tips General Terminology Before diagnosing print quality problems, take a moment to understand the concepts below. This will prevent confusion when diagnosing or escalating a problem. 1. Know your paper orientation when diagnosing a print quality issue.

  • Page 55: Print Quality Rules Of Thumb

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 Print Quality Rules of Thumb If you encounter print quality problems, follow the tips below. Following these simple rules may solve the problem easily and quickly. 1. Always run a new Menu Settings, Device Statistics or other printer “configuration page” showing the: Page Count –...

  • Page 56: Paper Transport Diagnostic Tips

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 Paper Transport Diagnostic Tips Paper Rules of Thumb Paper jams and feed problems occur for numerous reasons. Sometimes, failure of the equipment is the cause or it can be the result of other external factors. Before replacing parts for a feed problem, ask these questions: •...

  • Page 57: Fax Print Quality Diagnostic Tips

    Below is a chart outlining the troubleshooting steps to determine if the sending fax, receiving fax or phone line is the problem source. Please keep in mind that this chart only covers general print quality issues. For more detailed information, it is recommended that you complete Lexmark’s online course called MFP Overview.

  • Page 58: Sending Fax Machine At Fault

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 Document Print Receiving Fax Document Scan Sending Fax Sending Fax Machine at Fault Problem Description: • Problems with print quality at the receiving fax, such as corrupt images, lines in the image, top/bottom cut off.

  • Page 59: Receiving Fax Machine At Fault

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 Receiving Fax Machine at Fault Problem Description: • Problems with print quality at the receiving fax, such as corrupt images, lines in the image, top/bottom cut off. • When you test the Receiving Fax by printing the Self Test pages you can reproduce the print quality problem.

  • Page 60: Complex Parts And Procedures

    Increased likelihood of servicer error resulting in additional problems, malfunction of the machine or damage. The instructions for removal, installation and/or special adjustments can be found in the C925 or X925 Service Manuals. Follow the instructions carefully to avoid additional errors, malfunction or breakage.

  • Page 61: Toner Sensors

    NVRAM or hard drive, therefore, a RIP Board failure could result in loss of these applications and their settings if they are not backed up. When a new RIP Board is installed, the Lexmark default eSF applications and settings are loaded.
  • Page 62 Lexmark C925/X925 Color Product Study Guide Rev 2.3 To back up the solutions, do the following: 1. Turn off the printer. 2. Press and hold 3, 4 and 6. 3. Turn on the printer. 4. Release the buttons when the splash screen appears.
  • Page 63 Lexmark C925/X925 Color Product Study Guide Rev 2.3 7. Click on Solutions (don’t click Import/Export – the explanation is at the end) 8. Click on Embedded Solutions For Training Purposes Only 6/21/2011...
  • Page 64 Lexmark C925/X925 Color Product Study Guide Rev 2.3 9. Select each application individually by clicking on the name (we’ll use Forms and Favorites in this example) 10. Click on Export to create a file of that application’s settings 11. If the Web page cannot be accessed, or an error persists despite trying to boot in Invalid Engine code mode, then there is no way to backup the eSF apps.

  • Page 65: Adf Assembly

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 12. Don’t Use the “Global” Import/Export method to back up the eSF applications and settings. There is a size limit of 128kb on the export file. 13. Customers with a large number of applications or settings may exceed the file size limit and have information truncated in the exported file.

  • Page 66: Mirrored Printhead Settings Components

    Engine Board Printhead Controller Board The C925 and X925 printers have a unique mirror between the Printhead Controller Board and Engine Board for the four LED Printhead settings. Unlike previous printers such as the C920, you do not need to manually adjust the Light Values for an LED if it is replaced nor do you swap EEPROMs between the boards.

  • Page 67: Other Special Instructions

    Lexmark C925/X925 Color Product Study Guide Rev 2.3 Other Special Instructions The instructions listed in this section may need to be performed under certain circumstances such as repair, troubleshooting or other reasons. Cleaning the MFP Document Glass – X925 Only It is important to clean the MFP on a regular basis (about once a month depending on usage) to keep it functioning properly.

  • Page 68: Security Reset Jumper

    Rev 2.3 Security Reset Jumper The C925 and X925 printers have a Security Reset Jumper on the RIP which can be used in the event the Administrator password is forgotten (see pictures below). The Security Jumper effect can be configured through the Security Menu on printer’s web page or menus. The choices for the Security Reset Jumper effect are listed below: •...
  • Page 69 Lexmark C925/X925 Color Product Study Guide Rev 2.3 The movement of the jumper from position A to position B (or position B to position A) triggers the reset, NOT the specific positions. This differs from a CMOS reset on a computer.

This manual is also suitable for:

X925

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