Xerox Phaser 7700 Service Manual page 94

Error Chain /
Code Link
81 04-358 ERROR 81 CONTROLLER TO ENGINE COMMUNICATIONS
FAILURE
Switch printer power OFF.
Remove the Image Processor Board, Image Processor Board Cover and the Image Processor
Metal Cover and inspect the orange colored ribbon cable between the Relay Board and the
Engine Control Board for proper connector seating.
If the problem persists, replace the Image Processor Board (RRP 39, on page 7-186).
If the problem continues to persist, replace the Electrical Chassis Assembly (RRP 41, on page
7-188).
If the problem continues, replace the Engine Control Board (RRP 42, on page 7-190).
82 04-340 ERROR 82 ENGINE LOGIC BOARD RAM/ROM FAILURE
04-342
1. Turn printer power OFF, then ON.
2. If the problem persists, replace the Engine Controller Board (RRP 42, on page 7-190).
83 04-362 ERROR 83 ENGINE LOGIC BOARD NVRAM FAILURE
Replace the Engine Control Board (RRP 42, on page 7-190).
If the problem persists, replace the Image Processor Board (RRP 42, on page 7-190).
84 04-371 ERROR 84 CONTROLLER TO ENGINE LOGIC BOARD TIME
FAILURE
Replace the Engine Control Board (RRP 42, on page 7-190).
If the problem persists, replace the Image Processor Board (RRP 42, on page 7-190).
85 04-344 ERROR 85 ENGINE LOGIC BOARD MICRO PITCH FAILURE
1. Turn printer power OFF, then ON.
2. If the problem persists, replace the Engine Control Board (RRP 42, on page 7-190).
86 04-345 ERROR 86 HIGH-VOLTAGE POWER SUPPLY FAILURE
Replace the T3 High-voltage Power Supply (RRP 42, on page 7-190).
If problem persists, replace the Engine Control Board (RRP 42, on page 7-190).
87 07-281 TRAY LIFT FAILURE
07-282
07-283
07-284
07-291
07-292
07-397
One at a time, pull out and reinsert each paper tray.
Listen for tray lift.
Is there an Auxiliary Feeder (Lower Tray Deck or a High-capacity Feeder) installed?
Yes No
Refer to "Tray (1, 2, 3 or 4) Will Not Lift" section, page 3-94, in Troubleshooting.
Do any of the Auxiliary Feeder (LTD or HCF) Trays lift correctly?
Yes No
Refer to "Auxiliary Feeder not recognized" section, page 3-95, in Troubleshooting.
Refer to "Tray (1, 2, 3 or 4) Will Not Lift" section, page 3-94, in Troubleshooting.
Service Quick Reference Guide - Diagnostics, Error Codes & Messages
Front Panel Message
2-71