UPGRADING REPAIRING PCs

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Chapter 7—Parallel Ports, Printers, Scanners, and Drives
Table 7.8 Troubleshooting Printer Problems Continued
Symptom
Printer
Type Cause(s) Solutions
Sharp, vertical Laser Dirty Clean developer if separate; rewhite
lines developer unit place toner cartridge if it contains
developer unit.
Regularly Laser Spots less Clean fusing roller.
spaced spots than 3 inches
apart
indicate
dirty fusing
roller
Widely spaced Replace drum and fuser cleaning
spots, or one
per page,
indicates
scratched or
flawed drum
pad.
Gray print Laser Worn-out drum Replace drum (most common with
separate drum and toner supply)
background.
Loose toner Laser Fusing roller
not hot enough
Service fusing roller.
Solid vertical Laser Toner cartridge Shake toner cartridge to
black line nearly empty redistribute toner.
Scratched drum Replace drum or toner cartridge.
Paper jams Laser and Incorrect paper Use paper that is in proper
and misfeeds inkjet loading; paper condition for printing; don’t
too damp; overfill paper tray; don’t dog-ear
paper wrinkled;
paper too
heavy/thick
for printer
paper when loading it.
Envelope jams Laser and Incorrect Check correct envelope handling
inkjet paper loading; procedures; consider using labels
failure to set
laser printer
to use rear
paper exit
tray; printer
can’t handle
envelopes
to avoid envelopes.
Blank pages Laser and Paper stuck Riffle paper before loading paper
between inkjet together; tray; make sure all paper
printed pages paper is
damp or
wrinkled
is the same size.
Blank page Laser and Print spooler Change print spooler setting.
between print inkjet set to produce
jobs a blank divider
page