Lexmark Medley 4012-005, Service Manual

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4012-0XX
15
Printer Paper Path Service Check
Examine the machine for the following before you begin this service
check:
•
Check the entire paper path for obstructions.
•
Be sure the paper guides are not worn or broken and are posi-
tioned against the paper without binding or buckling the paper.
•
Be sure the correct type of paper is in the machine.
•
Be sure the rear of the carrier guide is on top of the paper guide.
FRU Action
1 Large and Small Feed Rollers Check for wear and binds.
2 Large Feed Roller Springs Check for damage.
3 Auto Sheet Feed (ASF) Check for equal pressure between the left
and right pick rolls and their pads; this can
be caused by the paper load shaft gears
being misaligned by one tooth in the ASF
frame.
Check the following for wear or damage:
• Envelope Bucklers
• All parts inside the left and right edge
guides.
4 End-of-Forms Flag Check for binds or damage.
5 Exit Roller Check for wear or binds.
6 Star Rollers Check for wear or binds. Check for broken
star roller springs.
7 Ejectors Check the front cover; if it is installed
incorrectly it can interfere with the ejectors.
Make sure the front bottom cover is
installed correctly. If the front bottom cover
is not installed correctly, the ejectors can
hang on the cover possibly causing severe
paper jams.
After the paper exits from the exit rollers,
the paper feed motor reverses causing the
feed arm pawl to restore to the home posi-
tion in the ASF side plate. At the same
time, the paper ejectors move the last
sheet of paper into the exit tray. If the ejec-
tors do not restore, check them for worn,
loose, or broken parts.