Controller To Engine Communications Failure - Xerox Phaser 6250 Service Manual

Troubleshooting Procedure Table
Step Actions and Questions
6 Check continuity of Harness Assembly
EEPROM between J144 <=> J140.

Controller to Engine Communications Failure

Code 81: This is a communication failure between the Image Processor Board and
the engine control board.
Note
When replacing the Image Processor Board, the NVRAM, memory,
configuration chip ('i' button), and hard drive must be transferred to the new
Image Processor Board. When replacing the Engine Control Board the Store/
Restore functions can be used to transfer data from the NVRAM to the new board
instead of transferring the NVRAM.
Troubleshooting Procedure Table
Step Actions and Questions
1 Cycle power to the printer. Is the error
cleared?
2 Is the error cleared by reseating the
Image Processor Board to Engine Control
Board.
3
Is the error cleared after replacing the
Image Processor Board?
See note above.
Error Messages and Codes
Yes
Replace the
Engine Control
Board, page 8-107.
Yes
Complete
Complete
Complete
No
Replace
EEPROM
Harness
Assembly,
PL 13.1.10.
No
Go to Step 2.
Replace the
Image Processor
Board,
page 8-110.
Replace the
Engine Control
Board,
page 8-107.
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