Xerox 5915, Service Manual

Page: 34 / 146

2-25 2.4 Level 2 Troubleshooting
Section 2 Troubleshooting
2.4.3 MISFEED JAM
C1-3 TRAY 1 MISFEED JAM
Preparation:
•
Ensure that no paper jam occurred.
•
Ensure that the Feed Roller has not worn out and the friction is
proper.
Procedure
Clear paper jam, start copying.
Does the Feed Roller rotate?
Y N
Enter Diag. (C/E) Mode. Enter [8-2], and check the operation
of Feed Solenoid.
Y N
Check the start signal of Feed Solenoid. Does the
voltage from P/J406-10 to com go high correctly?
Y N
Replace the Main PWB
Remedy the mechanical jam, then check the
operation of Solenoid. If it cannot turn on, replace it.
Check the tension of the pick up gear spring. If the tension is
weak, replace the spring.
Clean the Feed Roller and the Pinch Roller, Check them for the
deterioration.
Y N
Did the lead edge of paper reach the Regi-Gate.
Y N
Replace the Feed Roller, Clean the paper path.
Check the Regi-Gate sensor. Enter [8-8], check the level from
P/J407-8 to com, does it go high(H) and go low(L)? If no
change is the voltage from P/J600-1 to P/J600-3 +5VDC?
Y N
Check the +5VDC circuit.
Replace the Regi-Gate Sensor.
•
Replace the Feed Roller.
•
Clean the paper path.
C9-3 MSI MISFEED JAM
Procedure:
Start the copying in by in by pass Mode.
Does the MSI feed Roller operate?
Y N
Does the MSI Solenoid operate?
Y N
Enter Diag. Mode, Enter [8-7], does MIS Solenoid
turn on?
Y N
Replace the Main PWB.
Check the wire from P406-2 to P/J210-2.
Remedy mechanical trouble. Check the operation of
Solenoid again. If it does not turn on , replace it.
Replace the pick up Gear Spring.
•
Clean MSI Feed Roller and paper path.
•
If necessary, replace MSI Feed Roller, or adjust / replace the Retard
Pad.