October 2012
2-74
ColorQube 8570/8870 Service Manual
99,009 ~ 99,013, 99,015
Revised, 3rd Revision - Xerox Internal Use Only
Fault Messages and Codes
•
Test for bad Jetstack triac. Refer to
Checking for Shorted and Leaky Triacs
in
the Electrical Troubleshooting section in Chapter 6, General Troubleshooting.
•
Test for shorts to Earth. Measure the resistance of
P/JAC2
Pin 1 to Pin 7. It
should be greater than 2 Megaohms.
Are F2 and the triacs OK and is
P/JAC2
Pin 1 to Pin 7 greater than 2 Megao-
hms? (Ensure your DMM is rated to measure high-impedance resistance.)
Y
N
Replace the following components:
•
Electronics Module (
REP 5.1
)
•
Printhead Assembly (
REP 2.3
)
Replace the Jetstack Fuse Assembly.
Perform procedures in RAP
99,002, 99,003
Jetstack Disconnect.
Replace the Ink Loader (
REP 1.8
). Does the error persist?
Y
N
Troubleshooting complete.
Replace the Power Supply Board (
REP 5.6
) (Electronics Module).
Figure 1 Ink Loader Thermistor Test Point
99,015 PEST - Drum Cooling Fan Disconnect
A Drum Cooling Fan error has occurred. The Drum Cooling Fan is not drawing the expected
power from the Power Supply. The following troubleshooting applies to this error.
Initial Actions
•
Reboot the printer and verify the error persists.
•
Check the Drum Fan for function.
•
Check the Drum Fan’s wiring connection.
•
If the problem persists, perform the following procedure.
Troubleshooting Reference
Applicable Parts (Chapter 5 - Parts List)
•
Drum Cooling Fan,
PL 4.1 Item 12
•
I/O Board,
PL 5.1 Item 10
Wiring and Plug/Jack References (Chapter 7 - Wiring Data)
•
Figure 5
, I/O Board P/J Locations
•
Figure 8
, I/O Board, Sensors (1 of 2)
Procedure
Upgrade firmware (
Firmware Upgrade
). Reboot the printer. Does the error persist?
Y
N
Troubleshooting complete.
Check the Drum Fan wiring harness connector
P/J903
. Is the connection secure and
undamaged?
Y
N
Reseat and/or replace the wiring harness.
Check resistance on the wiring harness connector
P/J903
. Is it open or shorted?
Y
N
Replace the I/O Board (
REP 5.10
).
Replace the Drum Cooling Fan (
REP 4.12
). Does the error persist?
Y
N
Troubleshooting complete.
Replace the I/O Board (
REP 5.10
).
Table 1 Applicable Fault Code
99,015
PEST - Drum Cooling Fan Disconnect
A
B
Summary of Contents for COLORQUBE 8570
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