Xerox Book.P780 Train Tektronix Phaser 780 Color Laser Printer Service Manual Ation

• Service Manual - 01 - Tektronix-Xerox Phaser 780 - 01_GEN-INFO.PDF
  • General Information
    • Phaser 780 overview
    • Memory considerations
    • Print engine assemblies
    • The image processor
    • Front panel
    • Rear panel
      • Network card LEDs
    • Specifications
      • Regulatory specifications
        • Safety
        • EMC
        • Energy Star certification
• Service Manual - 02 - Tektronix-Xerox Phaser 780 - 02_ERROR_CODES.PDF
  • Error Codes and Messages
• Service Manual - 03 - Tektronix-Xerox Phaser 780 - 03_TROUBLESHOOT.PDF
  • Troubleshooting
    • System power-up sequence
    • Print engine troubleshooting
      • Printer will not power up
      • Erratic printer operation
      • Making a print engine only test print
      • Printing and print quality problems
        • Initial checks and actions
        • Light (undertone) prints
        • Blank prints
        • Monochrome prints
        • Black prints
        • One color is faded
        • Missing band in direction of paper travel
        • Missing bands in parallel to the leading edge
        • Streaks in direction of paper travel
        • Streaks parallel with the leading edge
        • Banding
        • Edge of print is wrinkled with an area of ragged discoloration.
        • Random missing spots
        • Random spotting
        • Repetitive mark appears on each print
        • Residual image or ghosting
        • Background contamination
        • Unfused image or image easily rubs off of page
        • Toner on back of print
        • Print is mottled
        • Image mis-registered on paper
        • Color layer not correctly registered
        • Color representation not correct
        • Oil stain or gloss variation on print
        • Random spotting
    • Media jams and the paper path
      • Skewed image
      • Damaged prints
      • Inoperative lower tray feeder
      • Power problems
        • All front panel indicators remain off. The printer does not initialize upon power- up
      • Front panel indications
        • Media tray indicates missing or empty when it is not
      • Macintosh printing problems
        • Image never prints
        • Image prints in black-and-white
        • Image is rotated 90 degrees
      • Windows printing problems
        • Image never prints
        • Blue color on the screen is printing too purple.
        • Printing from Windows 3.1 produces the message “Problem writing device LPT1: Cancel or Retry”.
      • Workstation printing problems
        • Image never prints
    • Running built-in diagnostics
• Service Manual - 04 - Tektronix-Xerox Phaser 780 - 04_ADJUST.PDF
  • Adjustments
    • Printing test prints
      • Print service test prints
      • Printing the configuration page
      • Printing the demonstration pages
    • Print engine calibration
      • Adjusting for impulse banding
• Service Manual - 05 - Tektronix-Xerox Phaser 780 - 05_CLEAN.PDF
  • Cleaning and Maintenance
    • Service preventive maintenance procedure
      • Recommended tools
    • Cleaning
• Service Manual - 06 - Tektronix-Xerox Phaser 780 - 06_NVRAM.PDF
  • Resetting NVRAM
• Service Manual - 07 - Tektronix-Xerox Phaser 780 - 07_DISASS.PDF
  • Key FRU Disassembly
    • Paper feeder
    • Feeder registration chute
    • Feeder registration clutch
    • Registration brake clutch
    • Feeder metal registration roller
    • Feeder rubber registration roller
    • Feeder pre-registration clutch
    • Feeder pre-registration rollers
    • Paper-pick turn roller
    • Paper feed drive gear train
    • Paper-feed motor
    • Multi-purpose tray roller assembly
    • Multi-purpose tray pick rollers
    • Auto-density calibration sensor
    • Developer assembly
    • Developer clutch
    • Developer tie plate
    • Toner/developer dispense motor
    • Carousel assembly
    • Carousel motor
    • Carousel motor board
    • Carousel sensor
    • Laser unit
    • Erase lamp rail assembly
    • Erase lamp
    • Process drive unit
    • Waste auger assembly
    • Accumulator belt assembly
    • Accumulator belt cleaner assembly
    • Second bias transfer roller assembly
    • Second bias transfer roller cam assembly
    • Fuser assembly
    • Fuser drive gear train
    • Lower exit assembly
    • Full stack sensor
    • Low voltage power supply
    • High voltage power supply
    • Image processor
    • Image processor chassis
    • Print engine control board
• Service Manual - 08 - Tektronix-Xerox Phaser 780 - 08_FRU.PDF
  • FRUList
    • Printer cabinet FRUs
    • Table 1  Printer cover FRUs
    • Paper feeder FRUs
    • Table 2  Paper feeder FRUs
    • Multi-purpose tray cover FRUs
    • Table 3  Multi-purpose tray cover FRUs
    • Multi-purpose tray FRUs
    • Table 4  Multi-purpose tray FRUs
    • Paper feeder cover FRUs
    • Table 5  Paper feeder cover FRUs
    • Paper feeder FRUs
    • Table 6  Paper feeder FRUs
    • Imaging FRUs
    • Table 7  Imaging FRUs
    • Developer FRUs
    • Table 8  Developer FRUs
    • Carousel FRUs
    • Table 9  Carousel FRUs
    • Accumulator belt assembly FRUs
    • Table 10  Accumulator belt assembly FRUs
    • Fuser assembly FRUs
    • Table 11  Fuser assembly FRUs
    • Paper exit FRUs
    • Table 12  Paper exit FRUs
    • Paper exit FRUs
    • Table 13  Paper exit FRUs
    • Drive FRUs
    • Table 14  Drive FRUs
    • Electronic (rear) FRUs
    • Table 15  Electronic (rear) FRUs
    • Electronics (front) FRUs
    • Table 16  Electronic (front) FRUs
    • Image processor FRUs
    • Table 17  Image processor FRUs
    • Optional lower feeder cabinet FRUs
    • Table 18  Optional lower feeder cabinet FRUs
    • Optional Feeder FRUs
    • Table 19  Optional feeder FRUs
    • Supplies and accessories
      • Table 20  Supplies and accessories
• Service Manual - 09 - Tektronix-Xerox Phaser 780 - 09_TESTPRINT.PDF
  • Test Prints
• Service Manual - 10 - Tektronix-Xerox Phaser 780 - 10_WIRING_FOLD.PDF
  • Wiring Diagrams