Lexmark MX310 Series Service Manual page 42

Actions
Step 1
a
POR into the Diagnostics menu and perform a print test:
Diagnostics Menu > Print Tests > Tray 1
b
Adjust the margins if necessary:
Diagnostics Menu > Registration
Does the error remain?
Step 2
Does the skew appear every two pages?
Step 3
a
Check the media source.
b
If the media is from tray 1, go to step 4.
If the media is from the MPF, go to step 6.
Step 4
Make sure the pick tires are free of debris. Check for wear or damage.
Are they free of wear or damage?
Step 5
Check the lift plate on the input tray for damage.
Is it free of damage?
Step 6
Make sure the MPF pick roller and separator pad are free of debris. Check
for wear or damage.
Are they free of wear or damage?
Step 7
Check the MPF gearbox for wear or damage.
Is it free of wear or damage?
Step 8
Make sure the front input guide rollers are free of debris. Check for wear
or damage.
Are they free of wear or damage?
Step 9
Make sure the redrive rollers are free of debris. Check for wear or damage.
Are they free of wear or damage?
Yes
Go to step 2.
Go to step 9.
Go to step 5.
Go to step 11.
Go to step 7.
Go to step 8.
Go to step 11.
Go to step 10.
Diagnostic information
42
7015
No
The problem is solved.
Go to step 3.
Replace the pick tires.
Replace the input tray.
Replace the MPF pick
roller and separator
pad. See "MPF pick
roller removal" on
page 263 and
"Separator pad
removal" on page
269.
Replace the MPF
gearbox. See "MPF
gearbox removal" on
page 215.
Replace the front input
guide. See "Front input
guide removal" on
page 267.
Replace the redrive
assembly. See "Redrive
assembly removal" on
page 304.