Black Only Retract (Bor) Service Check - Lexmark 13P0195 - C 750dn Color Laser Printer Service Manual

Step Action and questions
3 Check continuity of the paper level sensing cable.
Note: This cable is used for both the paper level
sensing assembly and the transparency sensor
assembly.
Is there continuity?

Black only retract (BOR) service check

Step Action and questions
1 Manual check of BOR system—
Remove the print cartridges. Observe the ITU belt as
you manually rotate the BOR gear.
Does the ITU belt move up and down when the ITU is
toggled?
2 Remove the ITU. Manually activate the BOR gear.
Verify that the front and back BOR cams are moving
the respective bell cranks.
Do the cams move back and forth properly?
Yes No
Replace the Replace the cable
autocompensator
assembly. If this
does not correct
the problem,
replace the engine
board. See
"Engine board
removal" on
page 4-29.
Yes No
Go to "Entire page Go to step 2
is mostly one
color—Full bleed
planes in one
color" on
page 2-140.
Replace in the Determine which
following order: component is
preventing the
1. BOR drive
proper movement.
assembly. See
"BOR drive
assembly
removal" on
page 4-23.
2. Engine board.
See "Engine
board
removal" on
page 4-29.
Diagnostic information
5060-00x
2-117