User Guide

Table 7-23 Drop outs and character voids
Possible cause Recommended action(s)
The user is printing on the wrong side
of the paper. The label on the ream of
paper indicates which side to print on.
The different surface properties of
some papers might cause problems if
the paper is loaded incorrectly.
1 Check the arrow on the paper
wrapper. From tray 1, the printer
prints on the side of the paper that
faces up. From the other trays, the
printer prints on the side of the
paper that faces down.
2 Turn over the stack of paper in the
tray. Also try rotating the stack
180°. Do not fan the stack.
3 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 media surface is too smooth or too
rough for adequate toner adhesion.
Use media that meets
HP specifications (see the HP LaserJet
Printer Family Paper Specification
Guide).
The transparencies do not meet
HP specifications.
Use HP-approved transparencies for
monochrome laserjet printers (see the
HP LaserJet Printer Family Paper
Specification Guide).
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 fuser roller is dirty and is lifting part
of the image off of the paper.
Process a cleaning page (see chapter
4). Several pages might be required if
the fuser is very dirty.
The print cartridge is defective or
nearly empty.
Replace the print cartridge.
The toner-density setting is incorrect. Open the print-quality menu at the
control panel and adjust the toner-
density setting. See
Print-quality
submenu. Make sure that EconoMode
is off.
386 7 Troubleshooting