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Symptom
Parallel attachment printing
problems
Poor quality shading patterns
Any print quality problem
Blank pages, double sheet feeds
Action
Make sure your printer driver is installed and connected to the
correct port.
Also, make sure you use properly shielded and grounded cables
and connectors (IBM part number 63H2804 or its equivalent) that
are no more than ten feet (3 meters) in length.
Responses:
1. Make sure the QUALITY item in the Config Menu is set to
REFINE. See "Configuration (Config) Menu" on page 102. Also
make sure your printer driver or printer application specifies
Edge Refinement. Values set in print jobs (either by the print
application or the printer driver) override values you set at the
printer.
2. Try increasing the print density if shading is too light. If shading
is too dark, try decreasing print density. See "Adjusting Print
Density" on page 30.
The quality of the printed output is not acceptable. Examples of
unacceptable output include light printing, streaks, splotches,
random deletions, blank pages, and so on. See "Appendix B. Print
Quality Problems" on page 225 for a quality-check procedure and
samples of print quality problems.
Responses:
1. If all sheets are blank, the toner supply could be low without the
toner sensor detecting it. Replace the toner cartridge. See
"Changing the Toner Cartridge" on page 144 for instructions on
removing and replacing the toner cartridge.
2. Random blank pages during a print job can be caused by
multiple sheets of paper being fed through the machine
simultaneously. Turn the paper over and feed from the other
edge or reload the paper tray with fresh, dry paper. Fan the
paper before loading it.
If the problem still exists with the new toner cartridge installed,
consider replacing the usage kit. See "Changing the Usage Kit" on
page 152.
Appendix A. Troubleshooting
221
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