Xerox Phaser 7700 Service Manual page 92

Error Chain /
Code Link
70 09-360 ERROR 70 PRINT CARTRIDGE 1 COMMUNICATIONS
71 09-361 FAILURE
72 09-362 ERROR 70 PRINT CARTRIDGE 2 COMMUNICATIONS
73 09-363 FAILURE
ERROR 70 PRINT CARTRIDGE 3 COMMUNICATIONS
FAILURE
ERROR 70 PRINT CARTRIDGE 4 COMMUNICATIONS
FAILURE
Swap the suspect print cartridge with any other cartridge.
Close all doors.
Does the problem follow the suspect print cartridge?
Yes No
Remove the cartridge in problem location and carefully inspect the connector damage.
Is the connector damaged?
Yes No
Measure the voltage between pin 4 of the suspect print cartridge connector and
frame
ground.
Does the voltage measure +3.3 VDC?
Yes No
Measure the voltage between each of P405A-4, -8 (see figure page 3-47),
P405B-4, -8 (see figure page 3-47) and frame ground.
Are all voltages +3.3 VDC?
Yes No
Replace the Engine Control Board (RRP 42, on page 7-190).
Replace the harness between the Engine Control Board and the suspect print
cartridge connector.
Replace the Engine Control Board (RRP 42, on page 7-190).
Replace the Print Cartridge Plate Assembly (RRP 26, on page 7-168).
Replace the Print Cartridge.
Service Quick Reference Guide - Diagnostics, Error Codes & Messages
Front Panel Message
2-69