4511-xxx
Diagnostics—all models
2-99
3. Press Go.
Four pages print to help you evaluate print quality. The first page has
various fonts and a graphic, the second page is gray with graphics, the
third page is black, and the last page is blank.
4. Use the test pages to isolate problems such as light or toner streaks.
See “POST symptom table” on page 2-79 for solutions to these
problems.
To exit, press Menu until Exit Config Menu appears, and press Select.
Blank page
FRU Action
Toner cartridge (not a
FRU)
Remove the toner cartridge, and gently shake it
to evenly distribute the toner.
Check for cartridge damage.
Printhead
LVPS/HVPS
Controller card
Toner electrodes
(cable assembly)
Blank pages can be caused by a defective
printhead assembly,
LVPS/HVPS, or controller card.
• Printhead errors typically result in printer
service errors.
• Blank pages typically are caused by the PC
roll not being properly charged. Try a different
PC kit.
Unplug the printer, and check the cable
continuity between the LVPS/HVPS connector
marked OPC and the corresponding wire form
(spring) found about 14 mm above and to the
right of the transfer roll gear.
• If there is not continuity, call the next level of
service.
Try a different toner cartridge and PC kit.
• If those fail, replace the LVPS/HVPS.
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