2-60 Service Manual
5026
156.xx—COD (Color On Demand) motor service check
160.xx, 161.xx—Motor Error (option tray 2) service check
Step Questions / actions Yes No
1 1. Turn the printer off.
2. Remove the rear frame cover. See “Rear
frame cover removal” on page 4-47.
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 4-78.
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 4-163.
Go to step 3.
3
1. Disconnect the cable in connector JBOR1
and then connect the cable from the new
COD group assembly.
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. Navigate to MOTOR TESTS > COD >
Forward. If nothing happens, select
Reverse.
Did the COD motor pass the test?
Replace the COD
assembly. See “Color on
demand assembly
removal” on page 4-78.
Replace the system board.
See “System board
removal” on page 4-163.
Step Questions / actions Yes No
1 1. Turn the printer off.
2. Reseat option tray 2.
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. Navigate to PRINT TESTS > Tray 2 >
Single.
Did the page print?
Problem resolved. Go to step 2.
2
1. Turn the printer off.
2. Remove the rear frame cover. See “Rear
frame cover removal” on page 4-47.
3. Check the option cable in connector
JOPT1 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 option cable.
See “Option cable
removal” on page 4-143.
Go to step 3.
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