October 2012
2-26
ColorQube 8570/8870 Service Manual
91,523, 91,527, 91,531, 91,850, 91,862, 91,535, 91,539,
Revised, 3rd Revision - Xerox Internal Use Only
Fault Messages and Codes
Does the error persist?
YN
Troubleshooting complete.
Replace the Printhead Assembly (REP 2.3).
Figure 1 Printhead Wiring Harness Connectors
91,535, 91,539, 91,543, 91,854, 91,866 Right Jetstack
Thermal Faults
A Right Jetstack Thermal error has occurred. The following troubleshooting procedure applies
to these errors.
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, Printhead P/J Locations
Procedure
Download the snippet file from the Xerox Support Website. Update the Printhead with snippet
8570-8870_SetPH-NVM.ps. Reboot the printer.
Does the error persist?
YN
Troubleshooting complete.
Check the Printhead wiring harness connectors P/J180 and P/J240 and wiring. Are the con-
nections secure and undamaged?
YN
Reseat and/or replace the wiring harness (Printhead Interface Cable). Does the error
persist?
YN
Troubleshooting complete.
Replace the Printhead Assembly (REP 2.3).
Turn off the printer.
Table 1 Applicable Fault Codes
91,535 Right Jetstack Heater is too hot.
91,539 Right Jetstack Heater is too slow, did not stabilize in time.
91,543 Right Jetstack Thermistor bad reading, cannot trust temperature.
91,854 Right Jetstack Thermistor is open.
91,866 Right Jetstack Thermistor is shorted.
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