Lexmark MX71x Service Manual page 292

Action
Step 2
Remove the tray from the drawer and do the following:
•
Check the pick roller's position. The pick roller should not hang
vertically; it should lean horizontally underneath the top cover of the
drawer.
•
Make sure the pick roller is installed correctly. If not, then reinstall the
pick roller.
•
Lower down the pick roller and then release. Check if the pick roller
would spring back to its original position.
•
Check the pick roller for damage. Check for wear on the pick tires.
Are the above components ok?
Step 3
Open the left cover and do the following:
• Reseat the connector J10 on the controller board.
• Check the motor cables. If damaged, then replace the transport motor.
See "Drawer transport motor removal" on page
•
Remove the media tray. Manually turn the transport motor encoders,
and check if it causes the transport and separator gears to turn. If there
is a problem with the gears, then replace the input option. See
"250/550-sheet media tray option removal" on page
•
Replace the transport motor. See
on page 658.
Does the error remain?
Step 4
Open the media tray and do the following:
• Make sure the separator roller is properly installed.
• Manually turn the separator roller drive gears and check if the
separator rollers would also turn.
•
Check the separator roller gears for damage and obstructions.
Is the separator roll still ok?
Step 5
Remove the input option from the printer. Check the upper interface
cable. If damaged, then replace the upper interface cable. See
upper interface cable removal" on page
Open the left cover and reseat the connector J1 on the controller board.
POR the machine.
Does the error remain?
658.
648.
"Drawer transport motor removal"
"Drawer
654.
Diagnostic information
292
Yes No
Go to step 3. Replace the pick roller.
Go to
roller removal " on
page
Replace the input The problem is solved.
option. Go to
"250/550-sheet media
tray option removal"
on page 648.
If the error persists,
then go to step 4.
Go to step 5. Replace the separator
roll.
Go to step 6. The problem is solved.
7463
"Drawer pick
650.