Lexmark M5150 Service Manual page 203

Action
Step 6
Open the left cover. Reseat the main motor cable J4 on the controller
PCBA.
Does the error remain?
Step 7
Note: The sensor (OE rear door interlock) should be disabled by
blocking the sensor.
Open the rear door. Do a feed test. Enter Diagnostics menu, and then
navigate to:
OUTPUT BIN TESTS > Feed to All Bins
Check if the transport rollers rotate when the test is performed.
Does the main motor make the transport rollers rotate?
Step 8
Check the drive gear for damage. Turn the gear and check if it has no
problem moving.
Note: To access the drive gear, see
removal" on page 570.
Is the drive gear functional and free of damage?
Step 9
Check the following:
• Check the rear door for damage. Open the rear door, and then check
if it closes properly.
• Check the rear door rollers for damage. Turn the rear door rollers and
check if they have no problem moving.
Are the rear door components functional and free of damage?
Step 10
Open the right cover, and then do the following:
a
Check the drive belt for damage.
b
Make sure the drive belt is aligned and properly seated.
c
Check if there is no problem with the tension of the drive belt.
d
Turn the gears. Check if the other gears engaged to the belt would also
turn.
Is the drive belt functional and free of damage?
"Output expander drive gear
Diagnostic information
203
Yes No
Go to step 7. The problem is solved.
Go to step 8. Replace the output
expander main motor.
See
main motor removal"
on page
Go to step 9. Replace the output
expander drive gear.
See
drive gear removal" on
page
Go to step 10. Replace the output
expander rear door.
See
rear door removal" on
page
If the error persists, Replace the output
then go to step 11. expander drive belt.
See
drive belt removal" on
page
4063
"Output expander
571.
"Output expander
570.
"Output expander
555.
"Output expander
579.