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Xerox 8550YDP - Phaser Color Solid Ink Printer User Manual

Solid ink printers
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Version 1.0
Technical Product Training
Phaser
8550/8500/8400
S o l i d I n k P r i n t e r s

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Summary of Contents for Xerox 8550YDP - Phaser Color Solid Ink Printer

  • Page 1 Version 1.0 Technical Product Training Phaser 8550/8500/8400 S o l i d I n k P r i n t e r s...
  • Page 2 Testing Prepare for the Online Test by completing the Self-Checks. Then, visit the Testing Center to complete your training. < www.xerox.com/office/testing > Continuing Support The Resources section of the training CD-ROM contains useful printer documentation and supplemental training materials. To obtain the most current updates, tips, and bulletins, visit the knowledge base and the Partner Resource Site.
  • Page 3 To start your training: Refer to the Introduction section of the Self-Study Guide for instructions to complete the training. ® 2. Insert the CD-ROM into the CD-ROM drive of a PC running Windows 95, 98, Me, 2000, NT, or XP. 3.

  • Page 5: Table Of Contents

    Phaser 8550, 8500, & 8400 Course Map ...... 4 Required Materials.............. 4 Online Testing Center ............5 If You Need Help..............6 How to Contact Xerox Product Training & Information..6 OVERVIEW SECTION Overview Objectives............7 Configurations ..............7 Phaser 8500 and 8550 Printers........7 Phaser 8400 Printers .............
  • Page 6 Test Macintosh Ethernet Port ........38 Printing Lab..............39 Install Software ............39 Print Jobs ..............40 Use the Xerox Support Centre........40 Install Upgrades..............41 General Instructions ........... 41 Memory Upgrade ............42 Hard Drive (Productivity Kit) Upgrade...... 42 Configuration Upgrades ..........
  • Page 7 CARE SECTION Care Objectives..............45 Paper Jams ................ 45 Resources ..............45 General Techniques ............ 46 Jams Behind Front Cover ........... 47 Jams Inside Preheater..........47 Exit Jams..............48 Jams At Trays ............. 48 Supplies................49 Ink Sticks ..............49 Maintenance Kits ............
  • Page 8 Parts Replacement Tips ............ 79 Exterior Covers ............79 Ink Loader Assembly ..........81 Stripper Carriage Assembly ........82 Printhead..............82 Electronics Module ............ 84 X-Axis Motor Assembly ..........84 Y-Axis Drive Motor Assembly ........84 Exit Assembly ............85 Printhead Wiper Assembly.........

  • Page 9: Introduction

    The Printing Basics and Solid-ink Basics prerequisite courses must be completed office/testing before you begin the Phaser 8550, 8500, and 8400 training program. The prerequisites Partner Resource Site: are waived if you have previously been certified on other Xerox Phaser printers, as www.xerox.com/ shown below: office/partners...

  • Page 10: Training Kit Contents

    Training Kit Contents The following items are provided in the Phaser 8550, 8500, & 8400 Service Training Kit: Phaser 8550, 8500, & 8400 Self-Study Guide Phaser 8550, 8500, & 8400 Product Training CD-ROM Phaser 8500/8550 Software and Documentation CD-ROM Phaser 8500 and 8550 Network Connectivity Sheet Phaser 8400/8500/8550 Service Manual (not included in Help Desk kits) Use the Self-Study Guide, training CD-ROM, and Service Manual to complete this training.

  • Page 11: Supported Operating Systems

    Supported Operating Systems The following operating systems may be used to run the training program: ® Windows 95, Windows 98, Windows Millennium Edition (Me) ® Windows NT 4.0, Windows 2000, Windows XP, Windows Server 2003 Completing the Training Complete the following tasks to become certified on the Phaser 8550, 8500, and 8400 printers. Refer to the “Phaser 8550, 8500, &...

  • Page 12: Phaser 8550, 8500, & 8400 Course Map

    Phaser 8550, 8500, & 8400 Course Map Overview Care Printer Tour Print Process Drivers Tour Paper Jams Configurations & Features Paper Jams Configurations Supplies Options & Upgrades Supplies Features Troubleshooting Media Support User Maintenance Documentation & Software Cleaning Overview Self-Check Replace Parts Moving the Printer Care Self-Check...

  • Page 13: Online Testing Center

    Item Minimum Requirements Example Manuals Xerox Phaser 8500/8550 User Guide (available from the Resources section of the training CD-ROM) Xerox Phaser 8500/8550 Quick Reference Guide (available from the Resources section of the training CD-ROM) Xerox Phaser 8500/8550 Setup Guide (available from the Resources section...

  • Page 14: If You Need Help

    How to Contact Xerox Product Training & Information Xerox wants to help you successfully complete this training course. If you need assistance with any part of the training, please contact us through the Contact Us link located on the Testing Center web page, or by using the following email address and telephone number: E-mail: support.training@office.xerox.com...

  • Page 15: Overview Section

    Phaser 8500 and 8550 Printers The Phaser 8500 and 8550 printers are the next generation of solid ink technology, exclusively from Xerox. The Phaser 8500 and 8550 are actually two printer families targeting two distinctly separate markets. Phaser 8500 - Phaser 8500 printers are for cost-conscious customers who require the lowest acquisition costs.
  • Page 16 All Phaser 8500 and 8550 printers include the following standard features: 600 MHz processor USB 2.0 and Ethernet ports First page out time as low as 5 seconds Automatic color corrections 139 PS and 81 PCL resident fonts Standard 1-year, on-site service warranty Support for PostScript 3 and PCL5c PrintingScout, CentreWare IS, PhaserSMART, &...

  • Page 17: Phaser 8400 Printers

    Phaser 8400 Printers The Phaser 8400 can be ordered in four configurations: B, N, DP, and DX. A fifth configuration, the BD, is available by installing an upgrade to Phaser 8400B printers. Each printer has a common set of standard features, which include the following: 500 MHz processor Support for PostScript 3 and PCL5c...

  • Page 18: Primary Differences

    The Phaser 8500 and 8550 printer software and user documentation is provided on a single Software and Documentation CD-ROM. Installing the Phaser 8500 and 8550 software also loads a utility called the Xerox Support Centre. This utility provides access to the user documentation and printer driver settings, online documentation, and troubleshooting tools.
  • Page 19 Network Connectivity Network connectivity is standard for the Phaser 8400N, DP, and DX printers and all Phaser 8500 and 8550 configurations. Each model supports PhaserSMART, PrintingScout, MaiLinX, and the Usage Analysis Tool, but there are differences in support for network protocols and CentreWare as shown below: Network Connectivity 8400N, DP, &...

  • Page 20: Options & Upgrades

    Options & Upgrades The Phaser 8400, 8500, and 8550 options and upgrade kits include extra memory, the 525-Sheet Feeder, the hard drive (Productivity Kit), and configuration upgrades. Memory The Phaser 8400, 8500, and 8550 printers each provide two memory slots. Phaser 8500/8550 memory modules are physically different than Phaser 8400 modules and are interchangeable.

  • Page 21: 525-Sheet Feeder

    Paper Tips Page, the Quick Reference Guide, or the User Guide. For Phaser 8500 and 8550 printers, also refer to the Recommended Media List at www.xerox.com/office/8500_8550support. The 525-Sheet Feeder for Phaser 8500/8550 and Phaser 8400 printers is interchangeable.

  • Page 22: Features

    Phaser 8400DX upgrade kits. Features Phaser 8400, 8500, and 8550 printers include a variety of features that are common to Xerox Phaser printers. Refer to the User Guide or Reference Guide for a list of features that may be selected using the printer driver, Control Panel, and CentreWare IS.

  • Page 23: Phaser 8500 And 8550 Print-Quality Modes

    High Resolution/Photo (2400 FinePoint™) - Highest quality mode for color prints. Provides the best detail and smoothness for photographic images. Produces highest-quality color prints with the best text resolution and smoothest light colors. The High Resolution/Photo mode uses image enhancement technology to produce photo-quality images.

  • Page 24: Factors That Reduce Print Speed

    Factors That Reduce Print Speed Many factors, in addition to the Print-Quality Mode and duplex printing, can reduce the print speed: Transparency Jobs - These jobs require a slower transfix speed than printing on paper. A two-pass printing process is used in the Enhanced and High Resolution/Photo Print-Quality Modes. Legal-Size Jobs - These jobs require a slower transfix speed than printing on A/A4-size sheets.

  • Page 25: Speed & Quality Review Exercise

    Speed & Quality Review Exercise Use the information provided in this section to recommend solutions for the following customer examples. The answers for this exercise are located in the Appendix on page page 89. 1. If a customer indicates that his printer is too slow when printing transparencies, what solution could you recommend? __________________________________________________________ 2.
  • Page 26 Xerox printers. When the user connects to a network with a Phaser 8400, 8500, or 8550 printer installed, they can select the Walk-Up Driver, choose “Use Walk-Up Technology,”...

  • Page 27: Media Support

    The Recommended Media List for Phaser 8500 and 8550 printers is located online at www.xerox.com/office/8500_8550support. This website provides up-to-date information about the current media available from Xerox. Additional sources for media support include the embedded Paper Tips Page, the Quick Reference Guide, and the User Guide. These documents provide general information about the supported media sizes, weights, and types, but they do not provide ordering information.

  • Page 28: 525-Sheet Tray (Trays 2, 3, & 4)

    Maximum dimensions – 216 mm wide x 355 mm long (8.5 x 14 in.) Phaser 8500/8550 printers allow 5 mm margins on all sides of custom size pages. When printing custom sizes on Phaser 8400 printers, the minimum page margin is 12.5 mm. 525-Sheet Tray (Trays 2, 3, &...

  • Page 29: Documentation & Software

    Documentation & Software The printers ship with a complete set of user documentation and software. Phaser 8400 printers have a separate User Documentation CD-ROM and Printer Installer & Utilities CD-ROM. The Phaser 8500 and 8550 printer drivers and user documentation are delivered on a single Software and Documentation CD-ROM.

  • Page 30: User Manuals & Guides

    Panel, supported papers, and instructions for basic printing. Also provided are troubleshooting instructions for print quality and paper jams. The Phaser 8500/8550 Quick Reference Guide includes an overview of the Xerox Support Centre. User Guide Soft copy This manual provides detailed descriptions of the printer...

  • Page 31: Embedded Pages

    CD-ROM. Printer Drivers & Utilities The drivers and utilities are available from the Xerox website, the Phaser 8400 Printer Installer & Utilities CD-ROM, the Phaser 8500/8550 Software and Documentation CD-ROM, and the printer’s hard drive (when installed).
  • Page 32 Corrections. See “Color Adjustment Sliders” on page 25 for details. Utilities The printer utilities listed below are available from the Xerox website to support Phaser 8400, 8500, and 8550 printers. The Usage Analysis Tool enables system administrators to collect, organize, and analyze Job Accounting data from multiple printers.

  • Page 33: Color Adjustment Sliders

    Color Adjustment Sliders The Phaser 8500 and 8550 TekColor driver properties page contains the standard Color Correction settings in addition to a “More Options” button. Advanced users can choose this feature to adjust colors for the current Color Correction setting. If one of the “Press Match” settings are selected, the “Apply to CMYK” checkbox must also be selected in order to implement the slider settings, as shown in the example below.

  • Page 34: Xerox Support Centre

    Centre automatically opens to provide immediate access to its features. An optional multimedia lesson called “Xerox Support Centre” is available on the training CD-ROM. To access the lesson, select the Resources section of the training CD-ROM and choose “User Videos”.

  • Page 35: Setup Section

    Phaser 8550, 8500, & 8400 Service Self-Study Guide SETUP SECTION Prerequisites Setup Objectives Setup section of the Phaser 8550, 8500, & Setup the printer (if printer available) 8400 Product Training CD-ROM Load paper and specialty media correctly into the trays Navigate the Control Panel menus Time To Complete Reading: 35 min.

  • Page 36: Setup Review Exercise

    Setup Review Exercise If you do have a printer, refer to the Setup Guide and complete this exercise. Then, read the following lessons for loading paper, configuring the Control Panel, testing ports, printing documents, and installing upgrades. The answers for this exercise are located in the Appendix on page 90. 1.

  • Page 37: Guidelines

    Reference Guide, the Phaser 8500/8550 User Guide, or the printed Quick Reference Guide. For Phaser 8500 and 8550 printers, refer also to the Recommended Media List at www.xerox.com/office/8500_8550support. Refer to the Quick Reference Guide, Paper Tips Page, Phaser 8400 Reference Guide, or Phaser 8500/8550 User Guide for printing instructions.
  • Page 38 Detecting Width Tray 1’s built-in Paper Present Sensor Tray 1 Type detects when paper is placed into the & Size tray. Users must adjust the guide against “Not Set” the edges of the paper stack so the guide correctly reports the paper’s width. When the tray is loaded, the printer’s Control Panel prompts the user to verify both paper size and type.

  • Page 39: Loading Trays 2, 3, & 4

    Loading Trays 2, 3, & 4 When paper is loaded into Trays 2, 3, or 4, the user must adjust the width and length guides against the paper stack. Information from the guides is used to update the printer driver with the media size for that tray. If the size corresponds to a specific media type, such as DL or C5 envelopes, the driver will also be updated with the media type.

  • Page 40: Configure Control Panel

    Configure Control Panel This lesson includes a general overview of the Control Panel menus. It also describes the hidden Control Panel shortcuts and the defaults that are most often selected during the setup procedure. Refer to the Menu Map when completing this section. An electronic version is available from the training CD-ROM’s Resources section.

  • Page 41: Control Panel Defaults

    Control Panel Defaults When setting up a Phaser 8400, 8500, or 8550 printer for the first time, users may need to select the following Control Panel defaults. Because the menus are different for Phaser 8400 printers when compared to Phaser 8500 and 8550 menus, the menu path for choosing each default can vary by printer model. Refer to the Menu Map or the printer’s user documentation for instructions.

  • Page 42: Network Diagnostics

    Network Diagnostics Start and runtime logs for diagnosing network problems are available using the menu path Troubleshooting...Network Problems...Network Log Pages. Network log pages for TCP/IP and AppleTalk are provided. A Network Diagnostics tool is provided on Phaser 8500 6350DT and 8550 printers. To access Network Diagnostics: Phaser 8550 Network Diagnostics Network Diagnostics...

  • Page 43: Test Parallel Port

    3. Use the printer’s Control Panel to enable AutoIP: Select the Printer Setup menu. Select the Connection Setup menu. Select the Network Setup menu. Select the TCP/IP Setup menu. Set AutoIP to On. Exit the menu so the printer is “Ready To Print”. AutoIP mode causes the printer to select an IP address based on other network devices.

  • Page 44: Test Macintosh Usb Port

    5. Launch the Add Printer Wizard. Keep the “automatically detect” box checked as shown to the right. 6. If prompted, specify the drive where the driver files are located (CD-ROM). 7. Click “Print Test Page” at the end of the installation to test the connection.
  • Page 45 Use the pull-down menu to select USB. Select the printer from the Product section (there may only be one). Select “Xerox” from the Printer Model field and then select the correct Xerox printer model (this selection configures the printer with the correct PPD file).

  • Page 46: Test Macintosh Ethernet Port

    Test Macintosh Ethernet Port To test the printer’s Ethernet port from a Macintosh computer without connecting to the customer’s network, use a crossover cable and the Macintosh Network Utility. The printer and computer must be set to the same range of IP addresses. The following example demonstrates how to test the Ethernet connection to a Mac OS 10.1 computer.

  • Page 47: Printing Lab

    8500 or 8550 drivers, the system automatically loads and opens the Xerox Support Centre. When the installation is complete, a shortcut to the Xerox Support Centre will be visible on the computer desktop. After completing this lab, return any changed settings to the previous values.

  • Page 48: Print Jobs

    Remove the paper from Tray 2 and view the Tray 2 status indicator (left side of “Printer Status” area) 3. If an Internet connection is available, use the Xerox Support Centre to perform the following tasks: Use the “My Printer” tab to launch CentreWare IS Use the “My Printer”...

  • Page 49: Install Upgrades

    Install Upgrades This section provides general information for installing upgrades and installation tips for installing the memory DIMMs, hard drive (Productivity Kit), and configuration upgrades. Instruction sheets are provided with the options and upgrades. When completing this section, refer to training CD-ROM’s Resources section for electronic versions of the instruction sheets. General Instructions Closely follow the printed installation sheet that is packaged with each option and upgrade kit.

  • Page 50: Memory Upgrade

    Installing Phaser 8500/8550 Memory Phaser 8400 and Phaser 8500/8550 memory DIMMs are interchangeable. Memory DIMMs are covered by the Xerox warranty, service agreement, or Total Satisfaction guarantee only when purchased from Xerox. Hard Drive (Productivity Kit) Upgrade The hard drive (Productivity Kit) includes two cables that must be installed on the Main Board.

  • Page 51: Configuration Upgrades

    Configuration Upgrades Configuration upgrade kits are available for many Phaser 8400 printers, but Phaser 8500 or 8550 printers. See “Configuration Upgrades” on page 13 for a list of the available kits and the parts needed for upgrading printers. For most configuration upgrades, the printer’s Configuration Card must be replaced.
  • Page 52 PHASER 8550, 8500, & 8400 SETUP SECTION page 44 Version 1.0...

  • Page 53: Care Section

    Phaser 8550, 8500, & 8400 Service Self-Study Guide CARE SECTION Prerequisites Care Objectives Care section of the Phaser 8550, 8500, & Identify common causes and solutions for paper jams 8400 Customer Product Training Describe and replace the supplies CD-ROM Resolve problems by cleaning or replacing parts Time To Complete Describe the moving and repacking procedures Reading: 40 min.

  • Page 54: General Techniques

    Windows users can access the Phaser 8400 user documentation and videos for (Phaser 8400 only) clearing jams from the Internet using the menu path Start...Programs...Xerox Office Printing. Loading the printer driver adds this item to the Start menu. Xerox Support Centre Phaser 8500 and 8550 users can access the User Guide and videos for (Phaser 8500 &...

  • Page 55: Jams Behind Front Cover

    Jams Behind Front Cover Use the following hints and tips when clearing jams behind the Front Cover: Remove all visible paper. Paper Guide Verify the Deskew Sensor is (in raised present and moves freely. position) Clean the Feed Rollers only if Deskew they are visibly dirty.

  • Page 56: Exit Jams

    Exit Jams To clear and resolve jams under the Exit Cover: Check for paper below both Exit Guide the Exit Guide and the Paper Release Blade. Check for damaged sensors and Paper sensor flags (two visible). Release Blade If necessary, clean the exit rollers. If the paper sticks to the Transfix Sensors Roller, clean all the scraps and...

  • Page 57: Supplies

    Phaser 8400 ink loader. Genuine Xerox Solid Ink 8500/8550 is compatible only with the Phaser 8500 and 8550 printers. Each color is clearly marked with a number that corresponds to the correct ink-loading bin. Ink sticks shipped with the printers currently do not have the Xerox logo as shown above.
  • Page 58 Reporting Ink Level Status After the “ink low” message is displayed, the printers can make about 1000 more prints at 5% coverage of the low color before displaying “ink out”. The printers have several ways to report the ink level status: Control Panel status messages for ink low and ink out (Phaser 8500 and 8550 printers indicate which color is out, while Phaser 8400 printers do not) Windows printer driver Paper/Quality properties page (status window)
  • Page 59 9,035.xx to 9,038.xx. Loading chipped or broken ink sticks that do not have the notch can cause the error. Other possible causes include using non-Xerox inks (NXI) that do not have the notch or a failed Notch For Sensing Ink Stick Count Ink Loader Assembly.

  • Page 60: Maintenance Kits

    Maintenance Kits The Maintenance Kit contains the oil-saturated roller and the wiper blade for oiling the Drum. It also contains a counter that tracks the kit usage. New printers include the Standard-Capacity Maintenance Kit, but Standard- and Extended-Capacity kits are available for Phaser 8400 and 8550 printers.
  • Page 61 Reporting Maintenance Kit Status The printers track their Maintenance Kit status including the life remaining and installation date of the current kit, as well as the total number of kits installed. Kit status can be reported accurately after used kits are installed, because each kit includes a counter to track usage.

  • Page 62: Troubleshooting Exercise

    Maintenance Kit rotates up to oil the Drum. Allow the print job to finish before removing the Maintenance Kit. 2. Pull out the Maintenance Kit. 3. Normally you would discard the kit or return it to Xerox for recycling. For this lab, reinstall the kit. 4. Close the Side Door. Troubleshooting Exercise The Printer Status Page and Usage Profile provide important information for troubleshooting ink and Maintenance Kit issues.
  • Page 63 4. What advice would you give a customer who has ordered more cyan ink because her printer ran out of cyan, but she has an immediate need to print a draft copy of her document? ___________ _____________________________________________________________________________ 5. Before authorizing onsite service, the knowledge base indicates the Maintenance Kit should be replaced to correct a specific print-quality problem.

  • Page 64: Cleaning

    Cleaning Most print-quality and paper feed problems are caused by damaged or unsupported media. If the media is OK, cleaning is often the next step in the troubleshooting process. This section presents examples of the most common print-quality problems and related cleaning procedures. Always use the embedded Troubleshooting Print Quality Page to determine if cleaning is required.
  • Page 65 After the cleaning procedure, the printer produces the Cleaning Page and the Light Stripes Test Page. The Light Stripes Test Page may show a small amount of discoloration, as shown to the right, but all the jets should have produced solid color bars. The discoloration will clear up after a few prints are generated.
  • Page 66 Phaser 8500 and 8550 Printhead Cleaning Three modes are available in the Phaser 8500/8550 menu system to resolve weak or missing jets. When 6350DT P h a s e r 8 5 5 0 Print Quality Problems customers experience light stripes caused by weak or Troubleshooting Print missing jets, they should select the menu path Quality Page...
  • Page 67 Advanced Cleaning After selecting “Advanced” the user is prompted to 6350DT choose the color and number of the problem jet Phaser 8550 Select the color of the based on the Light Stripes Test Page. In the weak or missing jet print-quality example to the right, the user should Cyan Magenta...
  • Page 68 Empty The Waste Ink Tray After running the Printhead cleaning sequence, the printer may display “Waste Tray Full”. Use the following procedure to empty the Waste Tray: 1. Open the Side Door. 2. Pull out the Waste Tray. 3. Twist the tray slightly to loosen the ink and discard the waste ink as normal office waste.

  • Page 69: Remove Print Smears

    Remove Print Smears The automated Remove Print Smears sequence cleans the paper path when ink or other debris builds up and causes print-quality problems, as shown to the right. This procedure removes ink that can become lodged inside the Preheater, as well as ink that accumulates on the Paper Feed Rollers.

  • Page 70: Clean Components Manually

    Clean Components Manually When the automated cleaning procedures fail to resolve print-quality or paper feed problems, the following components may require manual cleaning: Paper Release Blade Maintenance Kit Wiper Blade Paper Pick, Feed, and Exit Rollers Use a lint-free cloth soaked with 90% isopropyl alcohol when cleaning printer components.

  • Page 71: Cleaning Review Exercise

    Cleaning Review Exercise Refer to the Random Light Stripes procedure from the partial Phaser 8500/8550 Troubleshooting Print Quality Page to answer the first questions.Then, select the cleaning procedure that is most likely to resolve the associated problem. The answers for this exercise are located in the Appendix on page 91. 1.

  • Page 72: Replace Parts

    Replace Parts Customers can replace printer components, including the Pick Roller/Retard Roller and the Front Door with the MPT. These parts are packaged as replacement kits that include an instruction sheet for installation. To complete this section, use the Resources section of the training CD-ROM to view the following instruction sheets: Feed Roller Kit Front Cover and Tray...

  • Page 73: Front Door And Tray Kit

    Front Door and Tray Kit The Front Door and Tray kit provides a new Front Door (MPT) Assembly, which contains most of the Tray 1 components. A new Front Door may be required if there is shipping damage or if paper jams occur frequently when printing from Tray 1.

  • Page 74: Moving The Printer

    To avoid damage when moving the printer, the Printhead Lock Indicator must be clearly visible. Damage to the printer caused by improper moving is not covered by the Xerox warranty, service agreement, or Total Satisfaction Guarantee. Moving and Shipment Review Exercise Use the Phaser 8400 Moving Guide, located in the Resources section of the training CD-ROM, and the information from this lesson to answer the following questions.

  • Page 75: Service Section

    Purge Pump blows air into Vacuum/Pump Module generates Access to the Internet Maintenance Printhead, generating pressure to vacuum that sucks ink out of and Xerox knowledge purge ink out the faceplate faceplate base web site Wiper Assembly cleans the Cap/Wipe/Purge Assembly holds...

  • Page 76: Troubleshooting

    In addition to the Service Manual, use the following tools when servicing the printer: Torque screwdriver - Xerox part number 003082700 T-20 screwdriver tip - Xerox part number 003086600 Grease - Xerox part number 006799700 Service Diagnostics mode...
  • Page 77 Error Type Error Reporting Service Manual Topics BIST Blinks the PS & PE LEDs just above the Power Switch BIST Rear Panel LED Codes Table POST Error code is displayed on the Control Panel POST (Power On Self Test) Error Messages Blinks the Control Panel status LED (for codes greater than 5, a short Table pause occurs between each group of five blinks)
  • Page 78 Jam Codes Jam codes are stored in the printer’s Jam History each time paper jams occur. Each Phaser 8400 jam code contains a group of three digits while Phaser 8500 and 8550 jam codes contain four digits. The jam codes identify the information indicated below.

  • Page 79: Print Quality

    Software applications and driver settings Areas in the printer that require cleaning Non-Xerox or expired supplies (ink sticks and maintenance kits) The Print-Quality Troubleshooting section of the Service Manual contains instructions for diagnosing print-quality problems. It describes the built-in Service Test Prints that are provided for evaluating specific print-quality issues.
  • Page 80 Service Test Prints Lab The Service Test Prints can be accessed using the hidden Service menu. To display the menu, a special combination of Control Panel button presses is required. If a printer is available, use the following procedure to access the Service Test Prints from “Ready To Print”, and then print the pages indicated for reference when troubleshooting print-quality problems.

  • Page 81: Electronics Troubleshooting

    Print Quality Review Exercise Use the Analyzing Service Test Prints section of your Service Manual to match the following print-quality problems with the most likely cause. Pay special attention to the paragraphs entitled “Look For” and “Causes”, which explain how to evaluate the print and diagnose the printer when the print shows defects.

  • Page 82: Printhead Troubleshooting Checklist Exercise

    Checklists are located in the Appendix section of the Service Manual, on the Xerox support website, and inside the box of replacement Printheads. Use the Phaser 8500 and 8550 On-Site Printhead Troubleshooting Checklist to answer the following questions.

  • Page 83: Service Precautions

    Service Precautions This lesson describes important precautions to observe when servicing the printer. These include potential safety hazards on the printer, ways to avoid damaging the customer’s environment, how to properly handle service parts, important information about grounding connections, and how to home components to avoid possible damage during the power-on sequence.

  • Page 84: Customer Environment

    Customer Environment Technicians must always be careful to protect the customer’s office environment, including the furniture and carpets. When servicing these printers, the most likely ways to cause damage are scratches caused by sharp edges and spilling liquid ink. To protect the customer’s office furniture, use a cloth to cover your work area. Handle the Printhead and Ink Loader Assemblies carefully to avoid ink spills.

  • Page 85: Grounding

    Physical Damage Technicians should always handle printer components carefully to avoid damage. Handle the following parts carefully to avoid damage when servicing the printer: Transfix Roller - Avoid dropping the Transfix Roller. Dents in the rubber roller will cause repeating print defects at 11.6 cm (4.58 in) intervals.

  • Page 86: Homing Components

    Homing Components After servicing the printer, it is important to manually set four components to their home position in order to avoid errors or grinding gears during the power-on sequence. Before powering on the printer, verify the following components are set to home: Assembly Home Position Home Indicator...

  • Page 87: Parts Replacement Tips

    Homing Components Review Exercise Read the Printer Component Homing Positions and Indicators topic in the Service Manual to become familiar with procedures for homing components. Use the Homing the Process Gear Drive Train section of your Service Manual to determine which gears (1 - 4) are home in the diagram below.
  • Page 88 Control Panel Cover Use your fingers or a small screwdriver to pry up on the left side of the cover as Pry Here To shown to the right, and then pull it Remove Cover forward. After the cover is loose, press down on the Control Panel to release it from the cover.

  • Page 89: Ink Loader Assembly

    Ink Loader Assembly The procedure for replacing the Ink Phaser 8400 Phaser 8500/8550 Loader Assembly is slightly different for Phaser 8400 and Phaser 8500/8550 printers. On Phaser 8400 printers, disconnect the Ink Loader data cable at the printer frame. On Phaser 8500/8550 printers, disconnect the cable at the Ink Loader Assembly, as shown to the right.

  • Page 90: Stripper Carriage Assembly

    Stripper Carriage Assembly When removing the Stripper Carriage Assembly, be sure to hold the Transfix Roller firmly when lifting the assembly out of the printer. After removing the Transfix Roller Shaft to free the assembly from the printer frame, the Transfix Roller will drop out of the Stripper Carriage Assembly as shown to the right.
  • Page 91 Procedure Differences An important difference between Phaser 8500/8550 and Phaser 8400 printers involves an identification code that is stored in all Phaser 8500/8550 Printheads and Electronics Modules. When installed in a printer, the codes for each assembly must match. If the codes fail to match, the printer reports an error. The code for replacement Phaser 8500/8550 Printheads and Electronics Modules is set to zero at the factory.

  • Page 92: Electronics Module

    Electronics Module A small piece of tape is included with each Phaser 8500/8550 replacement Electronics Module. After installing the Apply Tape replacement assembly, use the tape to Here seal the top side of the housing where the Printhead Data Cable passes through it, as shown to the right.

  • Page 93: Exit Assembly

    Exit Assembly Use the following tips when replacing the Exit Drum Temperature Sensor Assembly: (Yellow Wires) Carefully observe how the Drum Temperature Sensor wiring harness (yellow wires shown to the right) passes through the Exit Assembly frame. The wires are pinched when routed below the assembly instead of through the frame.

  • Page 94: Drum Assembly

    Drum Assembly This topic provides general Drum Assembly replacement tips and highlights differences between the procedures for Phaser 8400 and Phaser 8500/8550 printers. General Drum Assembly Replacement Tips Closely follow the Replacement Notes provided in the Service Manual disassembly procedure when replacing the Drum Assembly.

  • Page 95: Lubrication

    To avoid damage when repairing the printer, use a torque screwdriver such as Xerox part number 003082700 to install the screws. Tightening Screws Review Exercise Use the General Notes on Disassembly section of your Service Manual to answer the following questions.

  • Page 96: Disassembly Lab

    Disassembly Lab If a printer is available, use the Service Parts Disassembly section of your Service Manual to remove the Printhead Wiper Assembly and Drum Assembly. While replacing these two assemblies, you will remove and re-install most of the printer’s service parts. To complete the disassembly lab: 1.

  • Page 97: Appendix

    Phaser 8550, 8500, & 8400 Service Self-Study Guide APPENDIX Answers to Overview Exercises Speed & Quality Review Exercise 1. If a customer indicates that his printer is too slow when printing transparencies, what solution could you recommend? Changing the Print-Quality Mode to Fast Color or Standard increases the print speed for transparencies, but reduces the saturation of ink on the page 2.

  • Page 98: Answers To Setup Exercises

    Answers to Setup Exercises Setup Review Exercise 1. According to the Setup Guide, what is the first step of the installation process? The first step is to watch the setup video. 2. How many people are required to lift the printer? Two people are required to lift the printer.

  • Page 99: Cleaning Review Exercise

    4. What advice would you give a customer who has ordered more cyan ink because her printer ran out of cyan, but she has an immediate need to print a draft copy of her document? Cancel the current job and resend the job using the “Black & White” color correction mode. 5.

  • Page 100: Answers To Service Exercises

    Printhead Troubleshooting Checklist Exercise 1. What information are you checking for in Step 1 of the checklist? Look for the evidence of non-Xerox ink usage. 2. If the printer has error code 13,197.4x, name two troubleshooting steps to complete before replacing the Printhead.

  • Page 101: Homing Components Exercise

    Homing Components Exercise 1. Transfix Camshaft: The Transfix Camshaft is not in the home position (dots aligned). 2. Transfix Drive Gear: The Transfix Drive Gear in the Process Drive Assembly is home (dot in correct position). 3. Drum Maintenance Drive Gear: The Drum Maintenance Drive Gear in the Process Drive Assembly is not home (dot in wrong position).

  • Page 102: Resources

    Online Testing Center www.xerox.com/office/testing Service Bulletins and Flashes www.xerox.com/office/partners Service Manual www.xerox.com/office/partners/ (select the printer model from pull-down list) User Documentation and Videos www.office.xerox.com/support/ (select the printer model from pull-down lists) Warranty and Service Agreements www.xerox.com/office/support Xerox Worldwide Service Partners www.office.xerox.com/partners...
  • Page 104 Other marks are trademarks or registered trademarks of the companies with which they are associated. Xerox technical training materials and service manuals are intended for use by authorized Xerox service technicians and service partners only and are not for resale. These materials may not be distributed, copied or otherwise reproduced without prior written consent from Xerox Corporation.

This manual is also suitable for:

Phaser 8550Phaser 8500Phaser 8400

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