Document Outline

• Table of contents
• Laser notices
  • Laser advisory label
  • Class 1 Laser statement label
  • Laser notice
  • Laser
  • Avis relatif à l’utilisation de laser
  • Avvertenze sui prodotti laser
  • Avisos sobre el láser
  • Laserinformatie
  • Lasermeddelelse
  • Huomautus laserlaitteesta
  • Laser-notis
  • Laser-melding
  • Avís sobre el Làser
  • Japanese laser notice
  • Chinese laser notice
  • Korean laser notice
• Safety information
  • Consignes de sécurité
  • Norme di sicurezza
  • Sicherheitshinweise
  • Pautas de Seguridad
  • Informações de Segurança
  • Informació de Seguretat
• Preface
  • Definitions
• 1. General information
  • Maintenance approach
  • Tools required for service
  • Serial number
  • Acronyms
  • Specifications
    • Resolution
    • Model differences
    • Technical specifications
    • Physical specifications and weight
    • Operating clearances
    • Packaging and shipping dimensions
    • Print speed and performance
    • Time to first print
    • Duty cycle
    • Printer memory
    • Paper and media specifications
    • Media sizes
    • Output capacity by media and source
    • Media guidelines
    • Connectivity
    • Power and electrical specifications
    • Environment
  • Printer identification
  • Options identification
  • Printer theory of operation
  • Printer paper path
  • Printer systems description
    • Basic principles of color printing
    • Mechanical and electrical structures
    • Printer component systems
    • Basic process of color printing
    • Print system and transfer system
    • Structure of OPC belt (photo developer cartridge)
    • Basic structure of the print system
  • Details of the print system
    • Charging process
    • Exposing process
    • Developing process
    • First transfer (drum) process
    • Belt discharge (erase lamp) process
    • Belt cleaning process
  • Details of the transfer system
    • Second transfer (paper) process
    • Transfer belt cleaning process
  • Details of the optical system
  • Details of the paper transportation system
    • Fusing unit
    • Fusing process
  • Control system structure
    • Electrical system and function
    • Control of print process
    • Print sequence diagram
    • Laser drive control circuit
    • Interface control
• 2. Diagnostic information
  • Start
  • Service error codes
  • Operator messages
  • Paper jam messages
  • Symptom tables
    • Printer symptom table
    • Print quality symptom table
  • Printer service checks
    • 901-Yellow developer clutch service check
    • 902-Magenta developer clutch service check
    • 903-Cyan developer clutch service check
    • 904-Black developer clutch service check
    • 905-Yellow toner retract solenoid service check
    • 906-Magenta toner retract solenoid service check
    • 907-Cyan toner retract solenoid service check
    • 908-Black toner retract solenoid service check
    • 910-Developer motor service check
    • 911-Main motor service check
    • 912-Power supply fan service check
    • 913-Fuser fan service check
    • 914-Laser fan service check
    • 915-Erase lamp service check
    • 916-Toner empty sensor (sender-TPD) service check
    • 917-Toner empty sensor (receiver-TTR) service check
    • 918-HVPS connection service check
    • 919-Lower feed unit (secondary paper assembly) service check
    • 920-Fuser thermistor service check
    • 921,922,923,924,925-Fuser assembly service check
    • 930,931,932-Laser unit assembly service check
    • 985-Duplex connection error 1 service check
    • 986-Duplex connection error 2 service check
    • 990-Transfer belt unit service check
    • 991-Transfer roller clutch service check
    • 992-Transfer belt cleaning roller clutch service check
    • 993-Fuser clutch service check
    • 994-OPC belt marker sensor service check
    • 995-High voltage power supply (HVPS) service check
    • 996-Low voltage power supply (LVPS) service check
    • Cover open service check
    • Incorrect media service check
    • Missing photodeveloper cartridge service check
    • Missing toner cartridge service check
    • OPC belt (photodeveloper) cartridge drive service check
    • Operator panel service check
    • Output tray full service check
    • Paper size sensing service check
    • Printer no power service check
    • Toner feed service check
    • Toner low/empty service check
    • Transfer roller missing service check
    • Tray empty service check
    • Waste toner bottle service check
    • Waste toner feed service check
  • Paper feed service checks
    • Printer paper feed service check
  • Print quality service checks
    • Background service check
    • Back stain service check
    • Banding service check
    • Black line service check
    • Color misregistration service check
    • Insufficient fusing service check
    • Insufficient gloss service check
    • Jitter service check
    • Missing image at edge service check
    • Mixed color image service check
    • Mottle service check
    • Residual image service check
    • Ribbing service check
    • Toner drop service check
    • Vertical line service check
    • Vertical staggering image service check
    • Vertical white band service check
    • White band service check
    • White line I service check
    • White line II service check
    • White spot / black spot service check
    • White print service check
    • Wrinkle / image migration service check
    • Uneven density (right and left)
  • Spacing table
    • Roller specifications
• 3. Diagnostic aids
  • Disabling download emulations
  • Paper jam sequence
  • Diagnostic mode
    • Diagnostics menu structure
    • Print quality test pages
  • Print registration
    • Setting tray 2 left margin
    • Setting top margin
  • Print tests
  • Hardware tests
    • LCD test
    • Button test
    • Parallel wrap test
    • ROM memory test
    • DRAM memory test
    • Serial wrap test
  • Duplex tests
    • Duplex left margin
  • Device tests
    • Quick disk test
    • Disk test/clean
    • Flash test
  • Printer setup
    • Setting the page count
    • Viewing the permanent page count
    • Serial number
    • Setting configuration ID
    • Parallel strobe adjustment
  • Error log
    • Viewing the error log
    • Printing the error log
    • Clearing the error log
    • Restore EP factory defaults
  • Exiting diagnostic mode
• 4. Repair information
  • Removal and cleaning precautions
  • Handling the printed circuit boards with MOS ICs
    • During transportation/storage:
    • During replacement:
    • During inspection:
  • Photodeveloper cartridge
    • During transportation/storage
    • Handling
    • Parts not to be touched
  • Printer removal procedures
    • Precautions to take before maintenance work
  • CRU/FRU and supplies removals
    • Cleaning roller cover removal
    • Transfer belt cleaning roller removal
    • Transfer belt unit removal
    • Transfer roller removal
    • Fuser assembly removal
    • Waste toner bottle removal
    • Photodeveloper cartridge removal
    • Duplex unit assembly removal
    • Secondary paper feed assembly removal
  • Cover removals
    • Top cover assembly removal
    • Front cover assembly removal
    • Right cover removal
    • Rear cover assembly removal
    • Left cover removal
    • Laser unit assembly (printhead) removal
    • Laser unit fan assembly removal
    • Erase lamp removal
  • Right side removals
    • Front door interlock switch removal
    • Front door interlock switch with bracket
    • Developer motor removal
    • Waste toner bottle holder removal
    • Developer drive assembly removal
    • Toner sensor (sender) removal
    • Cleaning roller clutch removal
    • Main motor assembly removal
    • Clutch removal
    • Main drive gear assembly removal
    • Waste toner feeder removal
  • Rear removals
    • RIP board removal
    • Bracket assembly removal
    • Paper guide assembly removal
    • Paper guide (C) assembly removal
    • Paper feed roller removal
    • Paper exit assembly removal
    • Registration assembly removal
  • Left side removals
    • Operator panel cable removal
    • Engine controller board removal
    • RIP board cage removal
    • High voltage power supply (HVPS) removal
    • Low voltage power supply (LVPS) with cage removal
    • HVPS cage removal
    • Toner present sensor removal
    • Toner sensor (receiver) removal
    • Toner retract solenoid and cam removal
    • Left tray guide assembly removal
  • Top removals
    • Marker sensor assembly removal
    • I/O board removal
    • Waste toner auger removal
    • Waste toner agitator removal
    • Power supply fan removal
• 5. Locations and connectors
  • Printer
  • Options
  • Electronic components
    • Sensor locations
    • Printer circuit board locations
    • Fan/motor locations
    • Interlock switch locations
    • Solenoid/clutch locations
    • Symbol and part name table
    • Wiring diagram / cable harness reference
    • RIP board
    • Engine controller board
    • Input/output (I/O) board
    • Low voltage power supply (LVPS) board
    • High voltage power supply (HVPS) board
  • Printer cables
    • Cable 1 connector assignments
    • Cable 1 connector pin assignments
    • Cable 2 connector assignments
    • Cable 2 connector pin assignments
    • Cable 3 connector assignments
    • Cable 3 connector pin assignments
    • Cable 4 connector assignments
    • Cable 5 connector assignments
    • Cable 6 connector assignments
    • Cable 6 connector pin assignments
    • Cable 7 connector assignments
    • Cable 7 connector pin assignments
    • Cable 9 connector assignments
    • Cable 9 connector pin assignments
    • Cable 10 connector assignments
    • Cable 10 connector pin assignments
    • Cable 11 connector assignments
    • Cable 11 connector pin assignments
    • Cable 12 connector assignments
    • Cable 12 connector pin assignments
    • Cable 13 connector assignments
    • Cable 13 connector pin assignments
• 6. Preventive maintenance
• 7. Parts catalog
  • How to use this parts catalog
  • Assembly 1: Base printer
  • Assembly 2: Covers
  • Assembly 3: Front
  • Assembly 4: Right
  • Assembly 5: Rear
  • Assembly 6: Left
  • Assembly 7: Top
  • Assembly 8: RIP board
  • Assembly 9: Miscellaneous/Options
• Index
• Part number index
• Cable diagram