User Guide

Table 7-28 Distorted images
Possible cause Recommended action(s)
AaBbCc
AaBbCc
AaBbCc
AaBbCc
AaBbCc
AaBbCc
The media does not meet
specifications or is not stored correctly.
1 Turn over the stack of media in the
tray. Also try rotating the media
180°.
2 Check the media type and quality.
Replace the media if it does not
meet specifications, and advise the
customer to use the HP-
recommended media and to store
it correctly. See Media
specifications.
The operating environment does not
meet specifications.
Make sure that the printer is installed in
an area that meets the environmental
specifications. See
Operating
environment.
The cables are not securely connected
to the laser/scanner assembly.
Reseat the cables that are connected
to the laser/scanner assembly.
The cables are not securely connected
to the dc controller PCA.
Reseat the cables that are connected
to the dc controller PCA.
The laser/scanner assembly is
defective.
Replace the laser/scanner. See Laser/
scanner assembly.
The gears are worn. Inspect the gears that drive the print
cartridge and fuser. Replace the main
drive assembly. See Main drive
assembly.
The print-cartridge motor is defective.
(HP LaserJet 4250/4300/4350 only)
Replace the print-cartridge motor
(HP LaserJet 4250/4300/4350 only).
See Print-cartridge motor
(HP LaserJet 4250/4300/4350 series
printer only).
The dc controller PCA is defective. Replace the dc controller PCA. See
Dc controller PCA.
Table 7-29 Skew
Possible cause Recommended action(s)
The media does not meet
specifications or is not stored properly.
1 Turn over the stack of media in the
tray. Also try rotating the media
180 degrees.
2 Check the media for type and
quality. Replace the media if it
does not meet specifications, and
advise the customer to use the HP-
recommended media and to store
it correctly. See
Media
specifications.
Image-formation troubleshooting 391