HP LaserJet 8000, 8000 N, 8000 DN and HP LaserJet Mopier 240 Printers Service Manual. English

Transcription

1 HP LaserJet 8000, 8000 N, 8000 DN and HP LaserJet Mopier 240 Printers Service Manual English

2 Service Manual HP LaserJet 8000 (C4085A) HP LaserJet 8000 N (C4086A) HP LaserJet 8000 DN (C4087A) HP LaserJet Mopier 240 (C4228A)

3 Copyright Hewlett-Packard Company 1998 All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. Publication number C First edition, November 1998 Warranty The information contained in this document is subject to change without notice. Hewlett-Packard makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties or merchantability and fitness for a particular purpose. Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material. WARNING Electrical Shock Hazard To avoid electrical shock, use only supplied power cords and connect only to properly grounded (3-hole) wall outlets. Adobe and PostScript are trademarks of Adobe Systems Incorporated which may be registered in certain jurisdictions. Windows is a U.S. registered trademark of Microsoft Corporation. Hewlett-Packard Company Chinden Boulevard Boise, Idaho U.S.A.

4 Conventions This manual uses the following conventions: The names of major printer parts and assemblies are Capitalized. Color is used to emphasize items which are important to the material under discussion. Bold is used for emphasis, particularly in situations where italic type would be confusing. Italic type is used to indicate related documents or emphasis. Note Notes contain important information set off from the text. CAUTION Caution messages alert you to the possibility of damage to equipment or loss of data. WARNING! Warning messages alert you to the possibility of personal injury. The illustration below shows the orientation of the paper-handling accessories as they are referred to in this publication. C iii

5 Chapter Descriptions 1 Product Information Contains printer features and product overview, tray capacities and sizes, media specifications, service approach, how to get technical assistance, and required safety and compliance statements. 2 Site Requirements Contains space and environmental requirements. 3 Operating Overview Contains details about control panel menus, restoring factory defaults, and resetting and testing the printer. 4 Maintenance and Adjustments Contains cleaning and preventive maintenance information, and adjustment procedures for paper trays. 5 Functional Overview Contains block diagrams and basic theory of operation for the printer systems, paper paths, and paper handling accessories. Contains basic cabling information. 6 Removal and Replacement Contains step-by-step procedures for replacing field replaceable units (FRUs) in the printer and paper-handling accessories. 7 Troubleshooting Contains a preliminary troubleshooting table, a table with descriptions and recommended actions for all control panel messages, image defect samples, and troubleshooting checks and tools. iv C

6 8 Parts and Diagrams Contains exploded view drawings and part number listings for all replaceable parts in the printer and paper-handling accessories. Contains two replaceable parts tables: one sorted alphabetically by part name, and one sorted numerically by part number. Both tables are cross referenced to the diagrams in the chapter. Subject Index Contains an alphabetical, cross referenced listing of information found in the main body of the manual. C v

7 vi C

8 Table of Contents 1 Product Information Printer Features Paper Capacities and Sizes Identification Model and Serial Numbers Specifications Media Selection Guidelines Paper Envelopes Adhesive Labels Transparencies Storing Print Media Shipping Print Media Product Overview External View of HP LaserJet 8000/N/DN Engine External View of HP Mopier Formatter Assemblies Accessories and Options Ordering Information Hard Disk Determining Memory Requirements Service Approach Ordering Parts Exchange Program Consumables Toner Cartridge Life Refilled Toner Cartridges & Non-HP Staple Cartridges Recycling Toner Cartridges Technical Assistance HP FIRST (Fax Information Retrieval Support Technology) Internet World Wide Web HP Reseller Sales and Service Support Line Other Areas Warranty Regulatory Information FCC Regulations Environmental Product Stewardship Protecting the Environment C vii

9 Material Safety Data Sheet Environmental Conformity Declaration of Conformity Safety Statements Laser Safety Statement Canadian DOC Regulations VCCI Statement (Japan) Korean EMI statement Laser Statement for Finland Site Requirements Operating Environment Space Requirements Environmental Requirements Operating Overview Using the Control Panel Control Panel Layout Indicator Lights Settings and Defaults Printer Driver Information Paper Source Default Resetting the Printer Setting the Display Language Control Panel Menus Information Menu Paper Handling Menu Print Quality Menu Printing Menu Configuration Menu I/O Menu EIO Menu Resets Menu Service Mode Setting Page Count, Maintenance Count, and Serial Number Setting the Cold Reset Default Paper Size Testing the Printer Paper Path Test Configuration Page viii C

10 4 Maintenance and Adjustments Cleaning the Printer and Accessories Cleaning Spilled Toner Preventative Maintenance Tray Adjustment Procedure Tray 4 (2000-sheet Input Tray) Adjustment Procedure Functional Overview Printer Functional Block Diagram Power Distribution System AC Power Distribution Overcurrent/Overvoltage Protection High Voltage Power Distribution Formatter System DC Controller System Laser and Scanner Drive Paper Motion Monitoring and Control Clutches Engine Test Microswitch Motors Image Formation System Toner Cartridge Drum Cleaning Drum Conditioning Image Writing Image Developing Image Transferring and Media Separation Image Fusing Paper Paths and Components Printer, Duplexer, and Envelope Feeder Paper Size Switches (Trays 2 and 3) Printing from Tray Printing from Trays 2 and Printing from the Envelope Feeder Printing with the Duplexer Printing from the Custom Height and Size Paper Tray sheet Input Tray (Tray 4) Components Sheet Input Tray Operation x 500-sheet Input Tray x 500-sheet Input Tray Operation bin Tabletop Mailbox Components bin Tabletop Mailbox Operation bin Mailbox Components bin Mailbox Operation Finisher Components Stapler Unit Operation C Table of Contents ix

11 Main Functional Cycles of the Stapler (Internal Paper Path) Communication Link (Daisy Chain) Paper Jam Detection Printer Timing IEEE 1284 Parallel Cable Information Removal and Replacement Removal and Replacement Strategy Required Tools User Installable Accessories Hardware Table Engine Removal and Replacement Control Panel Covers Delivery Unit (for Standard Output Bin) Diverter Assembly Diverter Door Assembly Lower Right Door Assembly Fan 1, Laser/Scanner and Housing (Exhaust) Fan 2, Low Voltage Power Supply (Exhaust) Fan 3, Formatter Fan and Housing (Intake) Fan 4, Delivery Unit (Exhaust) Tray Tray 1 Pickup Assembly Feeder Assembly Formatter Assembly Fusing Assembly Laser/Scanner Assembly Main Gear Assembly Main Motor Assembly Paper Input Unit (PIU) PCA, DC Controller Output Paper Sensor PCA High Voltage Power Supply (HVPS) Low Voltage Power Supply (LVPS) Registration Assembly Tray 1 Feed Roller and Separation Pad Tray 2 and 3 Pickup, Feed, and Separation Rollers Paper Input Unit Sensor (PS2) Registration Sensor (PS1) Face-up Solenoid Assembly (SL3) Transfer Roller Assembly Tray 2 and 3 Assemblies x C

12 2000-sheet Input Tray Removal and Replacement Orientation Front Cover Back Cover Left Cover Right Cover Main Drive Assembly Paper Tray Main Cable Harness Controller PCA Front LED PCA Assembly Pickup Assembly Power Supply Pickup, Feed, and Separation Rollers Paper Quantity Switch Assembly Paper Size Switch Assembly Vertical Transfer Unit (VTU) Tension Springs Locating Pins Casters and Stabilizing Feet Adjustable Foot x 500-sheet Input Tray Removal and Replacement Orientation of the 2 x 500-sheet Input Tray Back Cover Left Cover Vertical Transfer Unit (VTU) Right Cover Front Top Cover Trays 4 and Pickup Assembly Paper Deck Drive Assembly Pickup, Feed, and Separation Rollers Controller PCA Tray-Size Sensing PCA Power Supply Main Cable Storage Paper Tray Front Door (Storage Area) Casters Foot Tip and Adjustable Foot Tip (Stabilizing Feet) Locating Pins Front LED PCA bin Tabletop Mailbox Removal and Replacement Orientation of the 7-bin Tabletop Mailbox Front Cover Back Cover Top Cover C Table of Contents xi

13 Controller PCA Power Supply Right Door Assembly (Paper Path Cover) Face-down Bins Empty Bin Sensor PCA Full Bin and Interlock Sensor PCA LED PCA Face-up Sensors PCA Reversing Mechanism Motor Face-up/Diverter Assembly (Flipper) Short Tray Solenoid Reversing Mechanism Flipper Solenoid Handle Latching Mechanism Cover Latch bin Mailbox Removal and Replacement Orientation Front and Back Covers Top Cover Power Supply Paper Bins and Blind Cover Flipper Assembly Delivery Head Motor Transport Belt Motor Input Paper Guide Metal Tape and Housing Assembly Controller PCA Anticurl Strings Delivery Head Assembly Interlock Switch Diagnostic LED PCA User Status LED PCA Adjustable and Fixed Casters Attachment Assembly Stapler Assembly Removal and Replacement Mailbox with Stapler, Stapler Removal or Installation Back Plate Stapler Controller PCA Top Cover Assembly Stapler Bed Assembly Hinges xii C

14 7 Troubleshooting Troubleshooting Process Printer and Paper-Handling Troubleshooting Process Troubleshooting the Printing System Preliminary Operating Checks General Troubleshooting Information Miscellaneous Problems and Solutions Paper Curl Power On Engine Test Display Event Log General Paper Path Troubleshooting Paper Jams Paper Path Test Printer Messages Control Panel Messages and Errors Printer Message Tables Self - Diagnostics on Paper-handling Devices sheet Input Tray Stand-alone Diagnostics x 500-sheet Input Tray Standalone Diagnostics bin Tabletop Mailbox Standalone Diagnostics bin Mailbox Stand-alone Diagnostics Information Pages Menu Map Configuration Page Communication Interface Troubleshooting Image Quality Check the Toner Cartridge Image Quality Tables Repetitive Defect Ruler Image System Troubleshooting High-Voltage Power Supply Check Network Troubleshooting Verify Host System Operation Verify Network and Server Operation Diagrams Parts and Diagrams How to Use the Part Lists and Diagrams Ordering Parts Accessories and Supplies Common Hardware Illustrations and Parts Lists Printer and Paper-Handling Components C Table of Contents xiii

15 Printer Parts and Diagrams Paper-Handling Devices Parts and Diagrams Input Devices Output Devices Alphabetical Parts List Numerical Parts List Index xiv C