7.2 Detecting and Clearing Jams
Press
Error Skip
or open and close the front or fixing door to clear a 13 PAPER
JAM message. The following rounding cycle happens as the jams detection
circuits clear:
• The main motor runs.
• Any paper caught in the paper path is ejected.
• If the pickup rollers are not parked at the home position, they will rotate
and feed the top sheet of paper.
7.3 Power-Up Jams
An electrical malfunction of the DC control board, sensors, or wiring can
produce a power-up or phantom alarm. The term phantom describes a jam
alarm that occurs when there is no paper in the paper path. Phantom jams
can occur intermittently or can be predictable and can occur during operation
or when the printer is idle. Phantom jams cannot be directly connected or
linked to a malfunctioning roller or paper path guide.
Perform the following steps to fix a power-up or phantom jam alarm:
1. Examine the linkage arms that operate the paper pickup (PS13) and exit
sensors (PS12). Look for anything that may interfere with the operation
of the sensor linkages, such as shreds of paper or dirt. Manually toggle
the linkages to see if they move freely and fall to the home position in the
paper path. Fix or replace any damaged component.
2. Inspect the plug that connects PS12 and PS13 to the wiring harness. Look
for damage, misconnection, or misseating.
3. Inspect the 3-pin J208 plug that connects to the DC control board. Look for
misconnection or bent pins.
4. Swap the following components:
• DC control board
• Exit sensor PS12
• Density adjustment board
• Feed roller assembly which contains the PS13 paper pickup sensor
Paper Jam FIPs 7–5
