Xerox WC5545F, Service Manual

Page: 981 / 2320

August 2007
2-789
WorkCentre 5687 Family
OF10
Status Indicator RAPs
• Enter the relevant input codes and check that the sensing of the components is reliable.
Check if the fault is caused when the components are actuated.
• If it is suspected that a switch or sensor is faulty, install a new component as necessary.
• If the fault still exists, locate the PWB that controls the component and install a new PWB.
High Voltage Arcing Checkout
Use this Checkout when there are intermittent 03-XXX failures and the suspect cause is high
voltage arcing.
Refer to 09-060 HVPS Fault RAP and complete all of the actions to check the HVPS.
Registration Guide Checkout
• Check that the upper registration and lower registration guides are not shorted to ground.
If a short to ground is found, inspect the guides and harnesses between the registration
guide and bias lead at CB terminal on the HVPS.
• Check that there is continuity between the upper and lower registration guide. Check that
the registration bias terminal screw is tight.
• Check that the bias contact on the registration guide is not damaged, PL 8.15 Item 23.
• Check that the transfer / detack corotron shield is not damaged. Install a new transfer /
detack corotron, (32-38 ppm) PL 9.22 Item 8, (45-87 ppm) PL 9.20 Item 2. If the registra-
tion guide is damaged, install a new guide, (32/55 ppm), PL 8.15 Item 4, (65-87 ppm), PL
8.17 Item 4.
Developer Assembly Checkout
• Check the harness between DB terminal on the HVPS PWB and PJ94 on the black devel-
oper assembly for shorts to ground or damage.
• Check the ground line from PJ93 pin 10 on the developer assembly is in place and that
the connector is installed correctly and undamaged. Confirm that there is continuity
between the connector and ground.
• Inspect the developer assembly for damage and or incorrect assembly that may cause
arcing.
• If no fault is found, install a new developer assembly, (32-55 ppm) PL 9.17 Item 2, (65-87
ppm) PL 9.15 Item 2.
Xerographic Module and Corotron Checkout
WARNING
Switch off the electricity to the machine, GP 14. Disconnect the power cord. Electricity
can cause death or injury. Moving parts can cause injury.
• Check the transfer / detack corotron guide and the surface of the photoreceptor for dam-
age and contamination that indicates that these components are colliding with each other.
Ensure that both components are installed correctly.
• Inspect the transfer / detack corotron for correct installation. If any damage or wear is
identified, install new transfer / detack corotron, (32-38 ppm) PL 9.22 Item 8, (45-87 ppm)
PL 9.20 Item 2.
• Check that the charge scorotron leaf spring on the drives module for damage. Check the
spring and the terminal on the xerographic module for signs of arcing.
• Disconnect the corotron harnesses one at a time from the HVPS. Make copies to deter-
mine if the fault is caused by one of these components. Install new components if the fault
is determined and isolated.
• Inspect the HVPS and its surrounding area for signs of arcing. If necessary install a new
HVPS, PL 1.10 Item 5.
• Check the corotron harnesses on the HVPS for damage and short circuits to ground.
• Check that the corotron wires are correctly tensioned and terminal blocks are clean and
free of arcing marks.
• Check the transfer / detack corotron is located correctly in the short paper path assembly.
Ensure that the short paper path moves freely and latches in the correct position. Refer to
the replacement procedure in REP 10.1.
• Check the bias contact on the registration guide for damage, (32-55 ppm), PL 8.15 Item
23, (65-87 ppm), PL 8.17 Item 23.
• Check that there is continuity between the upper and lower registration guide and that the
bias terminal screw is tight.
Electrostatic Discharge Checkout
Perform the following:
• If the fault only occurs when feeding from a specific paper tray, go to Paper Trays 1 to 5
Checkout.
• If the fault only occurs when only making duplex copies, go to Duplex Transport Assembly
Checkout.
• Check that all EPROMs and the NVM are seated correctly and that the connectors are not
damaged. Refer to REP 3.2 Image Processing Module PWB
Paper Trays 1 to 5 Checkout
• Check that the paper tray size detection sensors match the size of paper in the trays.
Check that the control panel indicators display the correct size of paper.
• Check that the ground plate, PL 8.30 Item 17, has good contact with the drive shaft and
continuity with the ground. If continuity to ground is an open circuit or high resistance
change the ground plate.
• Perform the Electrostatic Discharge Checkout.
• Refer to the appropriate RAPs to check the operations of sensors, feed components and
associated harnessing.
– 08-101 Tray 1 Misfeed RAP
– 08-102 Tray 2 Misfeed RAP
– 08-103, 08-113 Tray 3 Misfeed RAP
– 08-104, 08-114 Tray 4 Misfeed RAP
– 08-115, 08-117 Tray 5 Misfeed RAP
Duplex Transport Assembly Checkout
• Check the operation of the duplex tray latch.
• Check the earth connections on the duplex transport assembly, PL 8.20 and REP 8.20.
• Check for continuity between the upper guide and the transport drive shafts.
• Check that the duplex transport is located correctly, REP 8.7 Duplex Transport.
Output Device Checkout
To run the machine without the output device connected, use a finisher bypass harness, PL
26.10 Item 7. If the problem is cleared, then go to the appropriate output device.
• 1K LCSS. Check the following:
– Ground connection on the power cord, PL 11.124 Item 8.