Lexmark 4227-X00 - Manual (Page 44)

Diagnostic Information 2-21
4227-X00
4 Gear Train and
Paper Feed Motor Remove all paper from the machine.
Press FormFeed several times and examine
all rotating parts to find the problem.
For better visibility, remove the covers and
reconnect the operator panel to the main logic
board.
The upper and lower feed rollers and the upper
and lower pinch rollers should all be clean and
in good condition, and should all rotate during
Form Feed.
To turn the gear train manually, turn the right
end of the lower feed roller shaft with a 6 mm
wrench.
FRU / Symptom Action