Jam And Misfeed Troubleshooting Procedures; Misfeed At Duplex Unit Reverse Drive/Storage Section - Xerox Phaser 6120 Service Manual

Jam and Misfeed Troubleshooting Procedures

Initial Actions
When a paper misfeed occurs, first check the following initial check items.
Check Item
Does the paper meet product specifications?
Is paper curled, wavy, or damp?
Is a foreign object present along the paper path, or is
the paper path deformed or worn?
Are the Paper Separator Fingers dirty, deformed, or
worn?
Are the rolls/rollers dirty, deformed, or worn?
Are the Edge Guide and Trailing Edge Stop at the
correct position to accommodate the paper?
Are the actuators found operational when checked
for correct operation?

Misfeed at Duplex Unit Reverse Drive/Storage Section

Detection Timing
Type
Detection of misfeed at Duplex
Unit reverse drive/storage
section
Actions
Duplex Transport Sensor (PC12 DU)
Duolex Transport Motor (M8 DU)
Duplex Reverse Motor (M9 DU)
Step Action
1 Initial check items.
2 Check the PC12 DU sensor.
3 Check M8 DU for correct operation.
4 Check M9 DU for correct operation.
5 Change PWB-A DU.
6 Change PWB-A.
Phaser® 6120 Color Laser Printer Service Manual
Change the paper.
Change the paper.
Instruct the user in correct paper storage.
Clean or change the paper path.
Clean or change the defective Paper Separator
Finger.
Clean or change the defective roll/roller.
Set as necessary.
Correct or change the defective actuator.
The Duplex Transport Sensor (PC12 DU) is not unblocked within a
specified period of time after the Duplex Reverse Motor (M9 DU) has
been energized for reverse drive.
Relevant Electrical Parts
Duplex Board (PWB-A DU)
PWB-A (Engine Control Board)
Control Signal
-
PWB-A DU PJ5A DU-3 (ON)
PWB-A DU
PJ2A DU-1~4 (pulse)
PWB-A DU
PJ2A DU-5~8 (pulse)
-
-
9-16
Jam and Misfeed Troubleshooting
Action
Description
WIRING DIAGRAM
(Electrical
Component)
-
3-C
5~6-C
5~6-C~D
-
-
Location