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dC708 Drum Drive Control Test
Purpose
The Drum Drive Control Test is used to perform diagnostic tests on the Drum Drive Subsystem.
Before running the Drum Drive Control Test the following PEST (Print Engine Self Test) errors
should be checked and cleared. The PEST Fault History can be accessed at dC123.
•
99-880 Motor, Drum drive open
•
99-881 Motor, Drum drive short
•
99-882 Motor, Drum drive power low
•
99-883 Motor, Drum drive power high
•
99-886 Motor, Drum drive current feedback
•
99-887 Motor, Drum drive thermal fuse
For any of these faults perform
99-872-00 to 99-887-00
NOTE: On issue of the service manual (March 2011),
Therefore, it is advisable to go to
dC122
check for drum drive related faults.
Procedure
1.
Enter service mode,
GP
1.
2.
Select the Diagnostics tab.
3.
Select dC708 Drum Drive Control Test.
4.
Select Start.
5.
At the end of the routine the test results will be displayed. Refer to
trol Test Actions RAP for actions resulting from faults indicated by the test.
6.
Select Close to exit the routine.
7.
Select Call Closeout to exit service mode.
ColorQube® 9303 Family
PEST Error 40 RAP.
dC708
was considered to be unreliable.
Fault History and
dC123
PEST Fault History then
94B
Drum Drive Con-
dC715 Active Registration Control
Purpose
Active registration is a feature of the machine that ensures the media is in the best registration
by correcting inboard and outboard variance and eliminating skew.
Procedure
Active registration is normally set to on. However, if a paper feed problem occurs, active regis-
tration can make it difficult to identify where a problem is occurring.
The dC715 Active Registration Control enables the engineer to disable active registration to
help diagnose paper feed problems. When active registration is disabled, the machine will
operate in a degraded mode until re-enabled or reset. Once the paper path is optimized, active
registration would be set back to enabled before ending the service call.
If the engineer forgets to re-enable active registration, the system will automatically return to
enabled during machine power on or system reset. A message will indicate when active regis-
tration has been disabled.
Perform the following:
1.
Enter service mode,
GP
2.
Select the Diagnostics tab.
3.
Select dC715 Active Registration Control.
4.
Select Disabled and follow the on screen instructions.
5.
Select Close to exit the routine.
6.
If required select Call Closeout to exit service mode while determining the source of the
paper feed problem.
7.
Run a series of copy / print jobs, from different trays, simplex and duplex pathways.
8.
Identify the cause of the problem and take the appropriate action.
9.
When the problem has been corrected return to dC715 and select Enable in the routine.
10. Select Close to exit the routine.
11. Select Call Closeout to exit service mode.
February 2013
6-285
1.
General Procedures/Information
dC708, dC715
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