Causes of persistent jams
If jams recur persistently, an MFP component might be defective. Use the information in this section
to isolate and solve the problem.
Jams in the top-cover and print-cartridge area
Table 7-4 Jams in the top-cover and print-cartridge area
Cause Solution
The pre-transfer roller in the registration assembly is dirty or
worn.
Replace the registration assembly.
The transfer guide in the registration assembly might be dirty
or stuck.
1 If the transfer guide is dirty, clean it with a soft, dry cloth.
2 Make sure that the springs at each end of the transfer
guide are adjusted correctly.
3 If the transfer guide is worn or damaged, replace the
registration assembly.
The top-of-page-sensor flag (PS103) or the paper-width-
sensor flag (PS106) might be stuck.
1 Verify that the connector J87 on the dc controller is
correctly seated. See
DC controller connections.
2 Run the manual sensor diagnostic test to make sure
that these sensors are operating correctly. See Manual
sensor test. The top-of-page sensor is represented by
letter “F,” and the paper-width sensor is represented by
the letter “D.”
3 While running the manual sensor test, open the top
cover and move the sensor flags while you observe the
control-panel display. If the sensors are operating
correctly, the status should change on the control panel.
If the status does not change, or you are unable to
move the flag, replace the sensor.
The transfer roller or the feed rollers might be damaged. Replace the rollers.
NOTE These rollers are part of the printer
maintenance kit.
The print cartridge might be damaged. Replace the print cartridge.
The dc controller might be defective. Replace the dc controller.
Jams 357
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