Xerox 4150 - WorkCentre B/W Laser, Service Manual

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January 2016
2-103 WorkCentre 4150/4250/4260WorkCentre WorkCentre 4150/4250/42604150/
OF4, OF5
Status Indicator RAPs
OF4 Copying Error RAP
Use this RAP if the machine does not copy correctly when the customer uses features such as
auto size detect, edge erase, book copying and image shift.
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.
1. Perform the Scan Edge Print test, GP 18 .
2. If the test fails, clean the document glass.
3. Install new components as necessary:
• Scanner top cover assembly (4150), PL 14.10 Item 24 .
• Scanner top cover assembly (4250/4260), PL 14.13 Item 33 .
OF5 Main PWB Check RAP
Use this RAP to check the main PWB. This RAP must be performed before a new main PWB is
installed.
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.
Perform the PWB Checks .
PWB Checks
The following steps are used to diagnose a fault with the input voltage to the main PWB or out-
put voltage from the main PWB.
Perform the following:
1. Ensure the supply voltage is within specification, refer to GP 7 Machine Specifications. If
possible, connect the machine directly to a known good power supply. If possible, do not
connect the machine to a multiway connector or power strip that is being used to supply
power to other electro mechanical devices. Card readers, printers and PC’s are known to
cause problems for Xerox equipment if they share a power supply.
If the customers power supply is faulty, inform the customer.
2. (4150) Refer to Wiring Diagram 8 . Disconnect CN27 from the Main PWB . Check the out-
put voltage from power supply unit 1. If necessary, install a new power supply unit 1, PL
1.10 Item 3 . If the output voltage from power supply unit 1 is good, reconnect CN27.
Check the voltage on the main PWB. Repair the wiring as necessary.
3. (4250/4260) Refer to Wiring Diagram 17 . Disconnect CN18 from the Main PWB . Check
the output voltage from power supply unit 1. If necessary, install a new power supply unit
1,
PL 1.15 Item 3 . If the output voltage from power supply unit 1 is good, reconnect CN18.
Check the voltage on the main PWB. Repair the wiring as necessary.
4. (4265) Refer to Wiring Diagram 17 . Disconnect CN33 from the Main PWB . Check the out-
put voltage from power supply unit 1. If necessary, install a new power supply unit 1, PL
1.15 Item 3 . If the output voltage from power supply unit 1 is good, reconnect CN18.
Check the voltage on the main PWB. Repair the wiring as necessary.
5. (4150) Refer to Wiring Diagram 3 , Wiring Diagram 5 , Wiring Diagram 6 , Wiring Diagram
7 . Actuate each component connected to the main PWB. Check that the signal voltage
from each component changes state. Check the wiring or install new components as nec-
essary.
6. (4250/4260) Refer to Wiring Diagram 21 , Wiring Diagram 22 , Wiring Diagram 23 , Wiring
Diagram 24 and Wiring Diagram 25 . Actuate each component connected to the main
PWB. Check that the signal voltage from each component changes state. Check the wir-
ing or install new components as necessary.
7. (4265) Refer to Wiring Diagram 37 , Wiring Diagram 38 , Wiring Diagram 30 , Wiring Dia-
gram 40 and Wiring Diagram 41 . Actuate each component connected to the main PWB.
Check that the signal voltage from each component changes state. Check the wiring or
install new components as necessary.
8. Check all connectors on the main PWB. If necessary, remove any oxidisation from the
pins and connectors.