October 2012
2-37
ColorQube 8570/8870 Service Manual
91,900, 91,903, 91,904, 93,901
Fault Messages and Codes
Xerox Internal Use Only - Revised, 3rd Revision
91,900, 91,903, 91,904, 93,901 Printhead NVRAM or PLD
Fault
A Printhead NVRAM error has occurred. The following troubleshooting procedure applies to
this error.
Initial Actions
•
Reboot the printer and verify the error persists.
•
Check the Printhead wiring harness connectors.
•
If the problem persists, perform the following procedure.
Troubleshooting Reference
Applicable Parts (Chapter 5 - Parts List)
•
Printhead Assembly,
PL 2.1 Item 3
•
Cable, Printhead Interface,
PL 5.1 Item 20
Wiring and Plug/Jack References (Chapter 7 - Wiring Data)
•
Figure 2
, Wave Amplifier, Printhead
•
Figure 6
, Top Side Wire Routing
Procedure
Check the Printhead wiring harness connectors
P/J180
,
P/J201
, and
P/J240
. Are the con-
nections secure and undamaged?
Y
N
Reseat and/or replace the wiring harness. Does the error persist?
Y
N
Troubleshooting complete.
Replace the Printhead Assembly (
REP 2.3
).
Replace the Printhead Assembly (
REP 2.3
).
Table 1 Applicable Fault Codes
91,900
Printhead NVRAM Read Error
91,903
Printhead NVRAM Read/Write Error
91,904
Printhead has wrong PLD version.
93,901
Head Waveform Zero Drop Mass
Summary of Contents for COLORQUBE 8570
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Page 2: ......
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