Xerox Phaser 7760 Service Manual page 174

009-360 Yellow Imaging Unit Communication Fail
A communication failure with the Yellow Imaging Unit was detected.
Troubleshooting References
Table 1 References
Applicable Parts Parts List Wiring and Plug/Jack References
Imaging Unit PL 4.1
Imaging Unit Plate Assem- PL 4.2
bly
Status Indicator RAP's
009-360
Section 7, Toner Dispense Motor (Y, M, C, K) Main
Switch - Figure 9
Troubleshooting Procedure
Step Actions and Questions
1 1. Replace the Imaging Unit reporting the
error.
2. Does the error still appear?
2 1. Remove the Imaging Unit from the
problem location and inspect the con-
nector.
2. Is the connector damaged?
Figure 1 009-360 Yellow Imaging Unit Communication Fail
January 2010
2-138
Table 2 Procedure
Yes No
Go to step 2. Complete.
Replace the Imag- Troubleshoot the
ing Unit Plate wiring. If wiring is
Assembly (REP OK, replace the
9.8). Engine Control
Board (MCU PWB)
(REP
Phaser 7760 Color Laser Printer
1.2).
Revised