Xx-Cod (Color On Demand) Motor Error Service Check - Lexmark X746de Service Manual

Step Questions / actions
Visually inspect the motor driver card.
5
Is the motor driver card damaged?
1. Connect a new motor driver card without
6
mounting it to the printer.
2. Bring the printer up in Diagnostics Menu
(turn off the printer, press and hold
buttons 3 and 6, then turn on the printer).
3. Touch MOTOR TESTS.
4. Touch CAM.
Did the motor run?
1. Reinstall old motor driver card to the
7
printer.
2. Plug in the CAM motor of the EP drive
assembly to the EP driver card electrically
without installing it into printer.
3. Bring the printer up in Diagnostics Menu
(turn off the printer, press and hold
buttons 3 and 6, then turn on the printer).
4. Touch MOTOR TESTS.
5. Touch CAM.
Did the motor run?
156.xx—COD (Color On Demand) motor error service check
Step Questions / actions
1. Turn the printer off.
1
2. Remove the rear frame cover. See
frame cover removal" on page
3. Check the cable in connector JBOR1 on
the system board for proper connection,
for cable pinch points, and for any other
damage to the cable or connector.
Is the cable damaged?
Measure the continuity across all of the fuses
2
on the system board.
Are any of the fuses blown?
Yes
Replace the motor driver
card. See
"Motor driver
card removal" on
page 4-118.
Install the new motor driver
card.
Replace EP drive
assembly. See
"Electrophotographic
(EP) drive assembly
removal" on page
Yes
Replace the COD
assembly. See
"Rear
demand assembly
4-37.
removal" on page
Replace the system board.
See
"System board
removal" on page
Go to step 6.
Go to step 7.
Replace system board.
See
"System board
removal" on page
4-78.
Go to step 2.
"Color on
4-58.
Go to step 3.
4-157.
Diagnostic information
7526
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