Diagnostic information 2-61
7526
156.xx—COD (Color On Demand) motor error service check
5
Visually inspect the motor driver card.
Is the motor driver card damaged?
Replace the motor driver
card. See “Motor driver
card removal” on
page 4-118.
Go to step 6.
6
1. Connect a new motor driver card without
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?
Install the new motor driver
card.
Go to step 7.
7
1. Reinstall old motor driver card to the
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?
Replace EP drive
assembly. See
“Electrophotographic
(EP) drive assembly
removal” on page 4-78.
Replace system board.
See “System board
removal” on page 4-157.
Step Questions / actions Yes No
1 1. Turn the printer off.
2. Remove the rear frame cover. See “Rear
frame cover removal” on page 4-37.
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?
Replace the COD
assembly. See “Color on
demand assembly
removal” on page 4-58.
Go to step 2.
2
Measure the continuity across all of the fuses
on the system board.
Are any of the fuses blown?
Replace the system board.
See “System board
removal” on page 4-157.
Go to step 3.
Step Questions / actions Yes No
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