Xerox WorkCentre 4150 Service Manual page 90

11. Enter dC330 code. Check that the relevant tray feed motor, PL 7.20 Item 9, runs and
drives the tray transport roll, PL 7.25 Item 22:
• Tray 2. Code 08-920.
• Tray 3. Code 08-930.
• Tray 4. Code 08-940.
12. Check the wiring between the tray feed motor and CN4 on the Tray PWB.
13. While the tray feed motor runs, stack the relevant code to energize the tray pickup clutch.
Check that the tray feed roll, PL 7.25 Item 11 rotates:
• Tray 2. Code 08-820.
• Tray 3. Code 08-830.
• Tray 4. Code 08-840.
14. Check the wiring between the tray pickup clutch, PL 7.25 Item 30 and CN4 on the Tray
PWB.
15. Check that the following components are clean and rotate freely:
• Tray feed roll, PL 7.25 Item 11.
• Tray nudger roll, PL 8.10 Item 12.
• Tray retard roll, PL 8.10 Item 12.
• Tray transport roll, PL 7.25 Item 22.
• Tray transport roll idlers, part of the tray access door, PL 7.20 Item 18.
16. If necessary, install new components:
• Tray feed roll, PL 7.25 Item 11.
• Tray nudger roll, PL 8.10 Item 12.
• Tray feed motor, PL 7.20 Item 9.
• Tray PWB, PL 7.20 Item 6.
• Tray assembly, PL 7.20 Item 1.
Status Indicator RAPs
07-231, 331, 431, 07-500
07-500 Paper Empty at Bypass Tray RAP
07-500 The machine has detected a failure to feed from the bypass tray.
Procedure
Switch off the electricity to the machine. Disconnect the power cord from the customer
supply while performing tasks that do not need electricity. Electricity can cause death or
injury. Moving parts can cause injury.
NOTE: The main PWB has 4 test points, GND, +3.3V, +5V and +24V. The location of the test
points is shown on the Main PWB PJ location illustration.
Refer to Wiring Diagram 6. Perform the following:
1. Open the right cover assembly, PL 7.30 Item 1. Check that the paper feed area at the
bypass tray is clean.
2. Check the operation of the bypass paper empty sensor actuator, PL 8.20 Item 26.
3. Enter dC330 code 07-510. Check the bypass paper empty sensor (S07-510), PL 8.20
Item 26.
4. Check the wiring between the bypass paper empty sensor and CN21 on the Main PWB. If
necessary, install a new bypass paper empty sensor, PL 8.20 Item 26.
5. If necessary, install new components:
• Paper transport assembly, PL 8.20 Item 1.
• Main PWB, PL 1.10 Item 1.
September 2006
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WARNING
WorkCentre 4150