Xerox Phaser 7760 Service Manual page 86

004-371 Printer Controller System Timing Fail
There is a communication failure between the Controller and Printer.
Troubleshooting References
Table 1 References
Applicable Parts Parts List Wiring and Plug/Jack References
Engine Control Board PL 13.1
(MCU PWB)
Troubleshooting Procedure
Table 2 Procedure
Step Actions and Questions
1 1. Cycle power the printer to clear the
error.
2. Did the error clear?
Status Indicator RAP's
004-371, 004-375
Section 7, Engine Control Board (MCU PWB) Plug/
Jack Locations - Figure 15
Yes No
Complete. Replace the Engine
Control Board
(MCU PWB)
1.2).
004-375 Controller Software Mismatch
Print Engine software mismatched.
Procedure
Turn the printer power Off, then On.
(REP
January 2010
2-50
Revised
Phaser 7760 Color Laser Printer