Xerox WorkCentre 4150 Service Manual page 146

10-100, 200 Open Fuser Error/Low Heat Error RAP
10-100 During normal operation, the temperature of the fuser has dropped below the operating
level.
10-200 The fuser has failed to reach the correct operating temperature.
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.
Do not touch the fuser while it is hot.
Go to the relevant procedure:
• 4150 Checkout
• 4250/4260 Checkout
• 4265 Checkout
4150 Checkout
NOTE: The main PWB has test points. The location of the test points is shown on the
PWB PJ location illustration.
Refer to Wiring Diagram 1, Wiring Diagram 2
1. Switch off the machine, then switch on the machine.
2. Enter dC330 code 10-100 to heat the fuser to 180 degrees. Enter codes 10-200 (centre
thermistor) and 10-210 (front thermistor) to verify the condition of the thermistors.
3. Enter code 10-300 to check power supply unit 2. If necessary, install a new power supply
unit 2, PL 1.10 Item 4.
4. Switch off the machine. Remove the fuser assembly. Check that the thermistors,
Item 9 are clean and in good contact with the fuser heat roller. Check the wiring to the
thermistors. Install new components as necessary,
5. Check for continuity between the two pins on the fuser assembly connector,
Item 8.
NOTE: A cold fuser has a resistance of approximately 11.5 ohms (220V/240V) or 2 ohms
(110V).
6. Check that there is continuity through the fuser heater and across the over temperature
cut-out.
7. Check the wiring between the fuser connector,
CON9 on Power Supply Unit 2. If necessary, install a new fuser connector,
20.
8. Check the wiring between CON4 on
9. Install new components as necessary:
• Fuser assembly, PL 10.25 Item
• HVPS, PL 1.10 Item 2.
10. Perform the OF5 Main PWB Check RAP.
WorkCentre WorkCentre 4150/4250/4260WorkCentre 4150/4250/42604150/
WARNING
WARNING
and Wiring Diagram 4. Perform the following:
PL 10.25.
PL 4.15 Item 20 and CON3, CON8 and
Power Supply Unit 2 and CN7 on the Main
1.
4250/4260 Checkout
NOTE: The main PWB has test points. The location of the test points is shown on the
PWB PJ location illustration.
Refer to Wiring Diagram
1. Switch off the machine, then switch on the machine.
2. Enter dC330 code 10-100 to heat the fuser to 180 degrees. Enter codes 10-200 (centre
thermistor) and 10-210 (front thermistor) to verify the condition of the thermistors.
3. Enter code 10-300 to check power supply unit 2. If necessary, install a new power supply
unit 2, PL 1.15 Item
4. Switch off the machine. Remove the fuser assembly. Check that the thermistors,
Item 9 are clean and in good contact with the fuser heat roller. Check the wiring to the
thermistor assembly. Check the wiring to the NC thermistor,
components as necessary,
5. Check for continuity between the three pins on the fuser assembly connector,
Item 8.
NOTE: A cold fuser has a resistance of approximately 11.5 ohms (220V/240V) or 2 ohms
(110V).
6. Check that there is continuity through the fuser heat lamps and across the over tempera-
ture cut-out. Install new components as necessary,
Main
7. Check the wiring between the fuser connector,
PWB. If necessary, install a new fuser connector,
8. Check the wiring between CON1 on
9. Install new components as necessary:
• Fuser assembly,
• Power supply unit 2,
10. Perform the OF5
4265 Checkout
PL 10.25
NOTE: The main PWB has test points. The location of the test points is shown on the
PWB PJ location illustration.
PL 10.25
Refer to Wiring Diagram
1. Switch off the machine, then switch on the machine.
2. Enter dC330 code 10-100 to heat the fuser to 180 degrees. Enter codes 10-200 (centre
thermistor) and 10-210 (front thermistor) to verify the condition of the thermistors.
3. Enter code 10-300 to check power supply unit 2. If necessary, install a new power supply
unit 2, PL 1.15 Item
4. Switch off the machine. Remove the fuser assembly. Check that the thermistors,
PL 4.15 Item
Item 9 are clean and in good contact with the fuser heat roller. Check the wiring to the
thermistor assembly. Check the wiring to the NC thermistor,
PWB.
components as necessary,
5. Check for continuity between the three pins on the fuser assembly connector,
Item 8.
NOTE: A cold fuser has a resistance of approximately 11.5 ohms (220V/240V) or 2 ohms
(110V).
January 2016
2-73
17, Wiring Diagram 18 and Wiring Diagram
4.
PL 10.28.
PL 10.28.
PL 4.15 Item 20
PL 4.15 Item
Power Supply Unit 2
PL 10.28 Item 1.
PL 1.15 Item 4.
Main PWB Check RAP.
33, Wiring Diagram 34 and Wiring Diagram
4.
PL 10.28.
Main
21. Perform the following:
PL 10.28
PL 10.28 Item 19. Install new
PL 10.28
and CN5 on the Main
20.
and CN7 on the Main PWB.
Main
37. Perform the following:
PL 10.28
PL 10.28 Item 19. Install new
PL 10.28
Status Indicator RAPs
10-100, 200