Lexmark X746de - 230.05-Paper Jam Error Service Check

2-74 Service Manual
7526
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230.03, 230.05—Paper Jam error service check
8
1. Replace the fuser.
2. Enter Diagnostics mode (press and hold
buttons 3 and 6, turn on the MFP, and
release the buttons when the progress bar
displays.
3. Touch SENSOR TESTS.
4. Touch Dynamic Sensors.
5. Touch Fuser Exit.
6. Open the front access door, and the top
access cover.
7. Activate the fuser exit sensor.
Did the fuser exit sensor change from Open to
Closed on the touchscreen?
Problem resolved. Replace the system board.
See “System board
removal” on page 4-157.
Step Questions / actions Yes No
1 Check the tray for any damage.
Is the tray damaged?
Replace the tray. Go to step 2.
2
Check the MPF duplex gear for any damage.
Is the MPF Duplex gear damaged?
Replace the MPF duplex
gear. See “Multipurpose
feeder (MPF)/duplex gear
and housing removal” on
page 4-119.
Go to step 3.
3
1. Turn the printer off.
2. Remove the rear frame cover. See “Rear
frame cover removal” on page 4-37.
3. Check the MPF/duplex motor cable in
connector JDX1 for proper connection to
the system board, cable pinch points, and
any other damage to the cable or
connector.
Is the cable damaged?
Replace the MPF duplex
motor cable. See
“Multipurpose feeder
(MPF)/duplex motor
cable removal” on
page 4-125.
Go to step 4.
4
Measure the continuity across all of the fuses
on the system board.
Is the fuse blown?
Replace the system board.
See “System board
removal” on page 4-157.
Go to step 5.
Step Questions / actions Yes No