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2-91 4059 Service Manual
4059-XXX
Print Quality Service Check
Service Tip: Before troubleshooting any print quality problems do the
following:
• Install another print cartridge if available before proceeding with
the service checks.
• Use Tray 1 to test for print quality of the base printer.
Select the following menu settings as indicated. Be sure and note
the original settings so you can return the printer to the original
customer printer setup.
• Print Resolution: Set to 300 dpi (print quality problems should
be checked at different resolution settings).
• Print Darkness: Set to NORMAL.
• Toner Saver: Set to OFF.
• PQET: Set to OFF.
• Fuser Temperature: Set to NORMAL.
An incorrect printer driver for the installed software can cause
problems. Incorrect characters could print and the copy may not fit
the page correctly.
Measure all voltages from the connector to printer ground. All
voltages measured during the print cycle are measured with the
controller board removed while running the print test.