Symptom Action Parallel attachment printing
problems
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 63H3329 or its equivalent) that are no more
than six feet (1.83 meters) in length.
Poor quality shading patterns Shading patterns in your printed images are of poor quality. Response: Make sure the QUALITY item in the Config Menu is not set to
REFINE.   See “Configuration (Config) Menu” on page  60.   Also make
sure your printer driver or printer application is not specifying Edge
Refinement.   Values set in print jobs (either by the print application or the
printer driver) override values you set at the printer.
Appendix A.   Troubleshooting 157