Xerox M20 - WorkCentre B/W Laser, Service Manual

Page: 56 / 314

December 2006
2-10 WorkCentre M20, 4118, FaxCentre 2218 Family
8.3
Status Indicator RAPs
8.3 Duplex Jam RAP
The machine has detected a paper jam during duplex printing.
Procedure
WARNING
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: If necessary, refer to GP 20 for the acronym list and cross reference lists of more com-
monly recognised part names.
Go to the relevant procedure:
• M20F Checkout
• 4118/2218 Checkout
M20F Checkout
Refer to Wiring Diagram 3. Perform the following:
1. Open the right hand cover. Remove all jammed paper.
2. Check that the paper path is clear and undamaged.
3. Enter GP 1 Engine Test Mode Entry. Use the sensor test to check the following sensors.
Install new components as necessary:
• FD. This is the feed sensor, part of the PBA SUB - feed & P.EMP SEN, PL 8.25 Item
12.
• EX. This is the PBA SUB - exit sensor, PL 4.17 Item 3.
• OB. This is the PBA SUB - bin full sensor, PL 10.10 Item 20.
4. Check the following wiring:
• Between the PBA feed sensor and CN24 on the PBA main.
• Between the PBA SUB - exit sensor and CN6 on the PBA main.
• Between the PBA SUB - bin full sensor and CN8 on the PBA main.
5. Enter GP 1 Engine Test Mode Entry. Check that the motor step - MCK2 (main), PL 4.20
Item 2 and the motor DC - MCK2 (BLDC), PL 4.20 Item 4 run. Install new components as
necessary, PL 4.20.
6. Rotate the duplex drive gears at the rear of the machine to remove any paper. The gears
should rotate freely. Install new components as necessary, PL 8.10 and PL 8.11.
7. Switch off the machine and remove the rear cover. Manually rotate, in a counter clockwise
direction, the motor DC - MCK2 (BLDC), PL 4.20 Item 4. Observe the PMO - roller feed,
PL 8.15 Item 10. Check that the PMO - roller feed rotates when the motor is rotated.
Install new components as necessary.
8. Manually rotate, in a counter clockwise direction, the motor step - MCK2 (main), PL 4.20
Item 2. Observe the PM - roller FD F, PL 10.10 Item 16. Check that the PM - roller FD F
rotate when the motor is rotated. Install new components as necessary.
9. Make sure that the MEC - roller exit drive bearings, PL 10.10 Item 10 and PL 10.10 Item
24 are not worn. Install new components as necessary, PL 10.10.
10. If necessary, install a new PBA main, PL 1.10 Item 4.
4118/2218 Checkout
Refer to the following:
• (4118) Wiring Diagram 8, Wiring Diagram 9 and Wiring Diagram 11.
• (2218) Wiring Diagram 8 and Wiring Diagram 15.
Perform the following:
1. Open the right hand cover. Remove all jammed paper.
2. Check that the paper path is clear and undamaged.
3. Enter GP 1 Engine Test Mode Entry. Use the sensor test to check the following sensors.
Install new components as necessary:
• FD. This is the feed sensor, part of the PBA SUB - feed & P.EMP SEN, PL 8.25 Item
12.
• EX. This is the PBA SUB - exit sensor, PL 4.17 Item 3.
• OB. This is the PBA SUB - bin full sensor, PL 10.10 Item 20.
4. (4118) Check the following wiring:
• Between the PBA feed sensor and CN5 on the HVPS.
• Between the PBA SUB - exit sensor and CN7 on the PBA main.
• Between the PBA SUB - bin full sensor and CN8 on the PBA main.
5. (2218) Check the following wiring:
• Between the PBA feed sensor and CN5 on the HVPS.
• Between the PBA SUB - exit sensor and CN9 on the PBA main.
• Between the PBA SUB - bin full sensor and CN10 on the PBA main.
6. Enter GP 1 Engine Test Mode Entry. Check that the motor step - MCK2 (main), PL 4.20
Item 2 and the motor (BLDC), PL 4.20 Item 29 run. Install new components as necessary,
PL 4.20.
7. Open the right side cover. Cheat the CBF - harness;switch micro, PL 4.17 Item 2. Run
again the motor DC - MCK2 (main). Observe the PMO - roller feed, PL 8.15 Item 10.
Check that the PMO - roller feed rotates. Install new components as necessary.
8. Switch off the machine. Rotate the duplex drive gears at the rear of the machine to
remove any paper. The gears should rotate freely. Install new components as necessary,
PL 8.10 and PL 8.11.
9. Manually rotate, in a counter clockwise direction, the motor step - MCK2 (main), PL 4.20
Item 2. Observe the PM - roller FD F, PL 10.10 Item 16. Check that the PM - roller FD F
rotate when the motor is rotated. Install new components as necessary.
10. Make sure that the MEC - roller exit drive bearings, PL 10.10 Item 10, PL 10.10 Item 23
and PL 10.10 Item 24 are not worn. Install new components as necessary, PL 10.10.
11. Install new components as necessary:
• PBA main (4118), PL 1.15 Item 9.
• PBA main (2218), PL 1.20 Item 9.
• HVPS (4118), PL 1.15 Item 10.
• HVPS (2218), PL 1.20 Item 10.