Sheet Media Type Error Service Check - Lexmark MX71x Service Manual

250/550-sheet media type error service check

Action
Step 1
Remove all input options and reinstall only the suspected 250/550-sheet
tray option. POR into diagnostics mode and navigate to:
INPUT TRAY TESTS > Feed tests > Tray 2
Does the input option feed normally?
Step 2
Remove the tray from the drawer and do the following:
• Check the paper guides for damage. Move the paper guide and verify
if it can move freely from one position to another.
•
Check the media size finger flag for damage.
•
Check the lift plate gear for damage. Manually turn the lift plate gear
and check if it causes the lift plate to move upward.
•
Check the separator gears for damage. Manually turn the gear and
check if the gears function properly.
Are the above components ok?
Step 3
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?
Yes
The problem may not
be on this option tray.
Reinstall the remaining
input options one at a
time and test each
option for errors.
Proceed with the
appropriate service
check based on the
error message and the
input option being
tested.
Go to step 3.
Go to step 4.
Diagnostic information
305
7463
No
Go to step 2.
Replace the media tray.
Go to "250/550-sheet
media tray option
removal" on page
648.
Replace the pick roller.
Go to "Drawer pick
roller removal " on
page 650.