Lexmark MX71x Service Manual page 133

Action
Step 6
Check the pick roller assembly to make sure that the rollers are free from
contamination and paper dust.
Is the pick roller assembly free of wear or damage?
Step 7
Reseat the connectors J4, J8 and J7 on the controller board.
Does the error remain?
Step 8
Open the rear cover. Do a feed test, enter Diagnostics Menu and navigate
to:
INPUT TRAY TESTS > Feed Test > Tray [x]
Viewing from the holes at the rear side, observe the pick/feed motor.
Does the feed motor run?
Step 9
Check the sensor (HCIT roller position) and make sure that it is properly
installed. If damaged, then replace the sensor. Go to
roller position) removal" on page
Reseat the sensor connector on the controller board and reseat also on
the other end of the sensor. POR the machine.
Does the error remain?
Step 10
Open the right cover. Reseat the cable attached to the lift motor.
Does the error remain?
Step 11
Open the right cover. Do a feed test, enter Diagnostics mode and navigate
to:
INPUT TRAY TESTS > Feed Test > Tray [x]
Does the lift motor run?
Step 12
Reseat all connectors on the controller board.
Does the error remain?
"Sensor (HCIT pick
683.
Diagnostic information
133
Yes No
Go to step 7. Replace the pick roller
assembly. See
pick roller removal " on
page
Go to step 8. The problem is solved.
Go to step 9. Replace the media
feeder. See
media feeder
removal" on page
686.
Go to step 10. The problem is solved.
Go to step 11. The problem is solved.
Go to step 12. Replace the lift motor.
See
motor removal" on
page
Replace the controller The problem is solved.
board. See "HCIT
controller board
removal" on page
676.
7463
"Drawer
650.
"HCIT
"HCIT lift drive
679.