Xerox ColorQube 9303 Series, Руководство по обслуживанию

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February 2013
2-475 ColorQube® 9303 Family
94B
Status Indicator RAPs
94B Drum Drive Control Test Actions RAP
Use this RAP to resolve problems identified by dC708 Drum Drive Control Test.
Procedure
NOTE: On issue of the service manual (March 2011), dC708 was considered to be unreliable.
Therefore, it is advisable to go to dC122 Fault History and dC123 PEST Fault History then
check for drum drive related faults.
Run dC708 Drum Drive Control Test. Observe the results of the test and perform the relevant
actions. On completion repeat the dC708 Drum Drive Control Test, and check for additional
actions, then return to the originating RAP.
0 Drum drive test normal
Passed test successfully
1 Low power slew test failed
Check the following for damage:
1. The wiring between PJ6AC on the power supply unit and the drum drive motor.
Refer to WD 1.1 . Repair as necessary, REP 1.1 .
2. The drum driver power supply interface cable, PL 1.15 Item 10 , install a new cable if nec-
essary.
3. The cleaning unit interface harness, PL 1.15 Item 17 . Check between the drum drive
motor and the drum driver PWB. Repair the harness if necessary, REP 1.1 . Refer to WD
1.1 and WD 9.3 , PJ 802.
4. If the no obvious damage is found replace the drum drive motor then the drum drive PWB.
2 Hall analog signal out of range
Referring to WD 9.3 check for +0.8V between PJ802 pin 12 and ground.
• If +0.7V to +0.9V is found install a new drum drive motor, PL 94.20 Item 6 .
• If no voltage is found install a new drum drive PWB, PL 1.15 Item 4 .
3 Analog sine or cosine drum encode signals out of range
1. Install a new drum encoder, PL 94.20 Item 8 .
2. If the fault persists install a new drum drive PWB, PL 1.15 Item 4 .
4 Drum home failed on index calibration
Clean the drum encoder or replace if necessary, PL 94.20 Item 8 .
5 Drum calibrate failed on hall signal
• Go to WD 1.1 and WD 9.1 . Check the wiring between the drum motor and the drum driver
PWB
Refer to:
– P/J501, Drum driver PWB .
– 01D +5V Distribution RAP.
– 01L 0V Distribution RAP
Install new components as necessary:
– Drum encoder, PL 94.20 Item 8 .
– Drum driver PWB, PL 1.15 Item 4 .
• Install a new drum drive motor, PL 94.20 Item 6 .
• Install a new drum driver PWB, PL 1.15 Item 4 .
6 Drum calibrate failed on encoder signal
• Go to WD 9.1 . Check the wiring between the drum encoder and the drum driver PWB
Refer to:
– P/J501, Drum driver PWB .
– 01D +5V Distribution RAP.
– 01L 0V Distribution RAP
Install new components as necessary:
– Drum encoder, PL 94.20 Item 8 .
– Drum driver PWB, PL 1.15 Item 4 .
• Install a new drum drive motor, PL 94.20 Item 6 .
• Install a new drum driver PWB, PL 1.15 Item 4 .
7 Drum following error higher than normal
1. Remove the drum fan shroud, PL 94.20 Item 5 and manually rotate the drum.
• If the drum rotates freely install a new drum drive motor, PL 94.20 Item 6 .
• If the drum does not rotate freely remove the drum drive belt, PL 94.20 Item 2 .
– Manually rotate the drum. If the drum spins freely install a new drum drive
motor.
– If the drum does not spin freely inspect the drum for obstructions and correct as
necessary.
8 Belt slip test failed
Inspect, clean or replace the drum belt as required, PL 94.20 Item 2 .
9 Slew under load test failed: excessive motor torque with transfix loaded
• Check the transfix roller, PL 10.20 Item 1 , for free rotation.
• If the transfix roller does not rotate freely check for obstructions and repair as necessary
or install a new transfix roller.