User Guide

Jams in the paper path
NOTE Avoid using odd-sized media. Odd-sized media might not travel between the transfer
roller and the fuser without getting jammed.
Avoid using short-grain paper. Short-grain paper might curl excessively and become jammed.
This type of jam is often found between the fuser and the output destination or in the duplexer.
Table 7-12 Causes of paper-path jams
Cause Solution
The cartridge shutter open/close mechanism is damaged. The shutter in the print cartridge should open as you insert
the print cartridge. If the shutter does not open, replace the
print cartridge.
The registration roller is dirty, worn, or damaged.
(This applies to jams that occur before the media reaches
the registration rollers.)
Clean the registration roller assembly if it is dirty. If it is dirty
after cleaning, or if it is worn or damaged, replace the
registration assembly. See Registration assembly.
The paper-feed assembly (including clutch CL101) might be
damaged. (This applies to jams that occur before the the
media reaches the registration rollers.)
Replace the paper-feed assembly. See Paper-feed assembly.
The drive gears are damaged.
(This can cause jams that occur before the media reaches
the registration rollers.)
Check the drive gears in the paper pickup and main drive
assemblies. Replace the pickup or main drive assemblies if
the gears are damaged. See
Paper-pickup drive assembly
or
Main drive assembly.
The pre-feed (PS102), top-of-page (PS103), or fuser-
assembly (PS108) sensor is defective.
Replace any defective sensors. See Printer switches and
sensors.
The dc controller PCA is defective. Replace the dc controller PCA. See Dc controller PCA.
Jams in the duplex path
Table 7-13 Causes of duplex path jams
Cause Solution
The oblique rollers are worn or damaged. Replace the duplexer.
The oblique roller drive gears are worn or damaged. Replace the duplexer.
The reversing motor is defective. Replace the reversing motor.
The duplex feed guide is damaged. Replace the duplexer.
The duplexing unit feed belt is cut or sagged. If the duplexing-unit feed belt is cut or sagging, replace the
belt.
The duplex sensors are defective. Replace the duplexer.
Foreign materials or burrs are present on the reversing or
feed guide.
If foreign materials are present on the reversing or feed
guide, remove them. Replace the guide if it has burrs.
The dc controller PCA is defective. Replace the dc controller PCA. See Dc controller PCA.
374 7 Troubleshooting