Xerox ColorQube 9303 Series Service Manual page 487

94-536-00, 94-538-00, 94-540-00, 94-542-00, 94-544-00, 94-
546-00, 94-632-00, 94-633-00 Drum Heat Error RAP
94-536-00 Drum front heater is too hot
94-538-00 Drum front heater is heating too slowly
94-540-00 Drum front thermistor is faulty
94-542-00 Drum rear heater is too hot
94-544-00 Drum rear heater is heating too slowly
94-546-00 Drum rear thermistor is faulty
NOTE: Field engineering have observed that the following two fault codes 94-632-00 and 94-
633-00 have appeared during the normal printing process, with 99 % of their occuranceies
having no consequences. Therefore, it is advised that either code can be treated as a soft fault
code and generally ignored unless either fault code reoccurs persistantly.
94-632-00 Drum front heater went unstable while printing
94-633-00 Drum rear heater went unstable while printing
Initial Actions
Check that the machine is installed to allow adequate airflow. Refer to
Requirements.
Procedure
Ensure that the electricity to the machine is switched off while performing tasks that do
not need electricity. Refer to GP 14. Disconnect the power cord. Electricity can cause
death or injury. Moving parts can cause injury.
Enter dC330 code 42-064 to run the drum fan,
Y N
Go to WD 9.1. Check the drum fan.
Refer to:
• OF 6 Fans and Air Systems RAP
• GP 10, How to Check a Motor.
• P/J501 Drum driver PWB.
• 01H +24V Distribution RAP.
• 01L 0V Distribution RAP
Install new components as necessary:
• Drum fan, PL 94.20 Item 4.
• Drum driver PWB, PL 1.15 Item
Enter dC335 Heater Monitor and Exerciser. Select the front drum heater. Set the Setpoint
Mode to Ready. Select Graph to run the test. Check that the temperature is correct and stable.
Repeat the test for the rear drum heater.
ColorQube® 9303 Family
GP 21 Installation Space
WARNING
PL 94.20 Item 4. The fan runs.
4.
NOTE: If the drum heater test fails to work correctly. Switch the machine off and then on,
14. Enter dC335 and rerun the drum heater test.
The tests were good.
Y N
Go to WD 1.2, WD 9.1 and
• The power supply unit and the drum heaters.
• The power supply unit and the thermal cutout PWB.
• The drum driver PWB and the front and rear thermistors.
Refer to:
• P/J5AC, Power supply unit.
• P/J501, P/J801 Drum Driver PWB
• 01A AC Power Distribution RAP.
• 01B +3.3V ESTAR Distribution RAP.
• 01L 0V Distribution RAP
Install new components as necessary.
• Front drum thermistor
• Rear drum thermistor,
• Drum, PL 94.20 Item
• Drum driver PWB, PL 1.15 Item
• Power supply unit, PL 1.15 Item
• Thermal cutout PWB,
The fault may be intermittent. Go to
between:
• The power supply unit and the drum heaters.
• The power supply unit and the thermal cutout PWB.
• The drum driver PWB and the front and rear thermistors.
Refer to:
• P/J5AC Power supply unit.
• P/J501, P/J801 Drum driver PWB
• 01A, AC Power Distribution RAP.
• 01B, +3.3V ESTAR Distribution RAP.
• 01L 0V Distribution RAP
If the fault persists, install new components as necessary.
• Front drum thermistor, PL 94.20 Item
• Rear drum thermistor, PL 94.20 Item
• Drum, PL 94.20 Item 1.
• Drum driver PWB, PL 1.15 Item
• Power supply unit, PL 1.15 Item
• Thermal cutout PWB, PL 88.10 Item
February 2013
94-536-00, 94-538-00, 94-540-00, 94-542-00, 94-544-
2-463
WD 9.3. Check the wiring between:
PL 94.20 Item 9
PL 94.20 Item 10.
1.
4.
2.
PL 88.10 Item 11.
WD 1.2, WD 9.1 and WD 9.3. Check for loose connections
9.
10.
4.
2.
11.
Status Indicator RAPs
GP