Print Quality-Blank Page - Lexmark C540n Service Manual

Print quality—blank page
Step Questions / actions
Is all the packing material for the imaging unit
1
in question removed?
Print a document that requires all four colors
2
with just a few characters to verify if one
specific color is a problem. For example, print
the Print Quality Test Pages:
1. Enter Diagnostic mode. (Turn the printer
off, press and hold Left (
Select ( ), turn the printer on, and then
release the buttons when the installed
memory and processor speed displays.)
2. Select PRINT TESTS, and press
Select ( ).
3. Select Prt Qual Pgs, and press
Select ( ).
Is only one color missing?
Replace the imaging unit. See
3
(IU) removal" on page
Does this fix the problem?
Run the Motor Detect Test:
4
1. Remove the imaging unit and the waste
toner bottle. See
removal" on page
2. Reinstall the right cover assembly.
3. Close the front cover.
4. Enter Diagnostics menu (Turn the printer
off, press and hold Left (
( ), turn the printer on, and release the
buttons when the installed memory and
processor speed displays.
5. Select MISC TESTS in the Diag Menu, and
press Select (
6. Select Motor Detect, and press Select
( ).
Motor Detection In Progress... appears.
The motor detection process takes about
10 seconds, and stops automatically.
Detect Complete. Rebooting... appears,
and the printer performs a POR (Power On
Reset).
Did the motor run?
) and
"Imaging unit
4-49.
"Imaging unit (IU)
4-49.
) and Select
).
Yes
Go to step 2.
Replace the developer unit
for the missing color.
Problem resolved.
Go to step 5.
5025-2xx, 4xx
No
Remove the packing
material.
Go to step 3.
Go to step 4.
Replace the Main drive gear
assembly. See
"Main drive
gear assembly removal"
on page 4-63.
Diagnostic information
2-45
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