Technical data

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