Diagnostic information 2-41
4506-1xx
Printhead service check
Skewed print
(Print is inappropriately
slanted.)
• The tray guide is not in the
correct position.
• The priority feeder guides are not
in the correct position for the
paper size loaded in the feeder.
• Contaminated pick roll and/or
separator pad
• Reposition the guide to fit lightly
against the paper stack.
• Reposition the priority feeder
guides to fit lightly against the print
media.
• Check the transfer roll springs for
free operation.
• Check the rear door latching.
• Remove debris from the pick roll
and/or separator pad.
• Remove and clean the paper pick
assembly. See “Paper pick
assembly removal” on page 4-15
for more information.
Blank pages The toner cartridge is defective or
empty.
Contacts are blocked
Laser light is blocked or not present
• First, remove and reset the toner
cartridge. If problem persists,
replace the toner cartridge.
• Check and clear contacts.
See “Blank page” on page 2-32 for
more information.
Solid black pages • The toner cartridge is defective.
• The printer requires service.
• The long-life photoconductor kit
is defective.
• First, remove and reset the toner
cartridge. If problem persists,
replace the toner cartridge.
• Check the PC contacts
• Replace the long-life
photoconductor kit.
See “Black page” on page 2-33 for
more information.
Paper (except card
stock) curls badly as it
exits the bin.
The Paper Texture setting is wrong
for the type of paper or specialty
media being used.
Change the Paper Texture from Rough
to Normal or Smooth.
This setting can be changed using the
Local Printer Setup Utility (Windows) or
through Printer Settings (Macintosh).
See the Software and Documentation
CD for additional information.
FRU Action
Printhead
1. Unplug the printer.
2. Disconnect the printhead cables from J12 and J13 on the controller card.
Turn the printer on.
3. On the controller card, verify +24 V dc on pin 5 at J12 and +5 V dc on pin 5 at
J13. Be sure the front and rear doors are closed when checking.
4. Verify grounds on pin 4 at J12 and on pin 6 at J13.
- If voltages or grounds are incorrect, check the controller card. See
“Controller card service check” on page 2-24 for more information.
- If voltages are correct, replace the printhead (comes with cables). See
“Printhead removal” on page 4-12.
- A faulty printhead will typically be indicated in a service error.
Symptom Cause Solution
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