Document Outline

• Laser Notices
• Safety Information
• 1. General Information
  • Options
  • Maintenance Approach
  • Tools Required For Service
  • Acronyms
• 2. Diagnostic Information
  • Start
    • Service Error Codes
    • User Status Messages
    • User Error Messages
    • Power-On Self Test (POST)
    • Symptom Tables
  • Service Checks
    • Charge Roll Service Check
    • Cover Open Switch/Cable Service Check
    • Dead Machine Service Check
    • Duplex Option Service Check
    • Envelope Feeder Option Service Check
    • Erase Lamp Service Check
    • Fan Service Check
    • Fuser Service Check
    • Fuser Envelope Conditioner Solenoid Service Check
    • Input Sensor Service Check
    • Input Tray(s) Option Service Check
    • High Capacity Feeder Input Tray Service Check
    • Main Drive Service Check
    • Operator Panel Service Check
    • Options Service Check
    • Output Bin Sensor Standard Tray Service Check
    • Output Expander Service Check
    • Paper Feed Service Check
    • Parallel Port Service Check
    • Printhead Service Check
    • Print Quality Service Check
    • Smart Cartridge Service Check
    • Serial Port Service Check
    • Toner Sensor Service Check
    • Transfer Roll Service Check
• 3. Diagnostic Aids
  • Diagnostic Mode
  • Device Tests
    • Quick Disk Test
    • Disk Test/Clean
    • Flash Test
    • Disabling Download Emulations
  • Duplex Tests
    • Duplex Quick Test
    • Duplex Sensor Test
    • Duplex Motor Test
    • Duplex Feed 1 Test
    • Duplex Feed 2 Test
  • Error Log
    • Viewing the Error Log
    • Clearing the Error Log
  • Hardware Tests
    • LCD Test
    • Button Test
    • DRAM Memory Test
    • ROM Memory Test
    • Parallel Wrap Test
    • Serial Wrap Test
  • Input Tray Tests
    • Input Tray Feed Test
    • Input Tray Sensor Test
    • Output Bin Test - Standard Bin
    • Output Bin Feed Test
    • Output Bin Sensor Test
    • Output Bin X Sensor Test
    • Base Sensor Test
  • Print Registration
  • Printer Setup
    • Setting the Page Count
    • Viewing the Permanent Page Count
    • Maintenance Page Count (2420/2450/2455/3455)
    • Setting Configuration ID
    • Restore EP Factory Defaults
  • Print Tests
    • Print Quality Test Pages
    • Printing Menu Settings Page
  • Autocompensator Operation
  • Autoconnect System, Paper Tray Options, Envelope Feeder and Output Expander Operations
  • Fuser Operation
  • Paper Feed Jams
• 4. Repair Information
  • Handling ESD-Sensitive Parts
  • Adjustment Procedures
    • Duplex Motor Drive Belts
    • Fuser Solenoid Adjustment
    • Gap Adjustment
    • Printhead Assembly Adjustment
    • Paper Alignment Assembly Adjustment
  • Screw Identification Table
  • Removal Procedures
    • Covers
    • Center Pan Assembly
    • Controller Board
    • Developer Drive Assembly
    • Duplex Board
    • Duplex Front Cover Assembly
    • Duplex Front Cover Door
    • Duplex Front Cover Door Switch
    • Duplex Motor
    • Engine Board
    • EP Frame Assembly
    • Fans
    • Fuser
    • Fuser Board
    • Fuser Cover
    • Fuser Detack Fingers
    • Fuser Detack Housing Assembly
    • Fuser Transfer Plate
    • Fuser Envelope Conditioner Solenoid
    • Fuser Exit Flag Assembly
    • Fuser Exit Roll Assembly
    • Fuser Lamp
    • Fuser Lower Exit Guide Assembly
    • High Voltage Power Supply
    • Inner EMC Shield
    • Inner Paper Deflector Assembly
    • Integrated Tray Compensator Assembly
    • Integrated Tray Compensator Pick Roll Assembly
    • Interconnect Board Assembly
    • Left Side Frame
    • Low Voltage Power Supply
    • Main Drive Assembly
    • Main Drive Motor
    • Multipurpose Tray/Lower Deflector Assembly
    • Operator Panel
    • Operator Panel Cable/Cover Open Switch Assembly
    • Optional 250/500 Paper Tray Assembly
    • Outer EMC Shield
    • Paper Alignment Assembly
    • Paper Input Sensor
    • Paper Size Sensing Board
    • Pick Roll
    • Printhead
    • Redrive Assembly
    • Right Side Frame
    • Smart Cartridge Contacts
    • Toner Sensor
    • Transfer Roll Assembly
    • Upper Paper Deflector Assembly
    • Upper Front Cover Hinge Assembly
    • Upper Front Cover Interlock Switch Assembly
• 5. Connector Locations
  • Low Voltage Power Supply
  • High Voltage Power Supply
  • Engine Board
  • Fuser Board
  • Interconnect Board
  • Envelope Option Board
  • Duplex Option Board
  • Autoconnect - Top
  • Output Expander Control Board - Level 1 Stepper Motor
  • Output Expander Control Board - Level 2 DC Motor
• 6. Preventive Maintenance
  • Safety Inspection Guide
  • Lubrication Specifications
  • Scheduled Maintenance (2420/2450/2455/3455)
• 7. Parts Catalog
  • How To Use This Parts Catalog
    • Assembly 1: Covers
    • Assembly 2: Frame
    • Assembly 3: Printhead
    • Assembly 4: Paper Feed (Autocompensator)
    • Assembly 5: Paper Feed - Multipurpose Unit
    • Assembly 6: Paper Feed - Alignment
    • Assembly 7: Paper Feed - Output
    • Assembly 8: Integrated Paper Tray - 250 Sheet
    • Assembly 9: Main Drive
    • Assembly 10: Developer Drive
    • Assembly 11: Fuser
    • Assembly 12: Transfer
    • Assembly 13: Charging
    • Assembly 14: Electronics
    • Assembly 15: 250 Sheet Tray
    • Assembly 16: 500 Sheet Tray
    • Assembly 17: 500/500 Dual Tray
    • Assembly 18: Duplex
    • Assembly 19: Output Expander
    • Assembly 20: Envelope Feeder
    • Assembly 21: High Capacity Feeder
    • Assembly 22: Kiosk - Vertical Paper Adapter
    • Assembly 23: Kiosk - Horizontal Paper Adapter
    • Assembly 24: Options
    • Assembly 25: Miscellaneous
• Index