Lexmark T630 - Printer - B/w, Service Manual

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Service Manual
4060-xxx
Paper feed service check
If you have a 936 Transport Motor Error go to “Main drive service check” on page 2-68 .
Autocompensator fails to feed paper. Failures occur randomly throughout the
stack of paper.
Paper feed failures occur only near the top of the stack of paper.
The most common cause of this problem is paper curl. Remove the paper from tray x and check for
the natural curvature in the paper. Reinstall the paper in the correct manner. If the problem persists, it
may be necessary to reduce the stack height. Replace both pick rolls if the paper appears to be flat in
the tray but there is still a problem.
Failures occur mainly near the bottom of the stack of paper.
The autocompensator pick arm may not be coming down far enough to allow the pick rolls to properly
contact the paper. Also the autocompensator motor may be failing. If this problems continues,
replace the autocompensator assembly.
FRU Action
1 Alignment assembly Check to ensure the alignment assembly is correctly attached to the
left side frame and the mounting screws are tight. Check the
alignment assembly for worn rollers, contaminated rollers, or binds.
Replace the alignment assembly if any problem is found.
2 Inner deflector Check the inner paper deflector for correct installation. If the deflector
is bowed or not fitting correctly, replace the deflector.
FRU Action
1 Pass thru sensor Check the pass thru sensor for correct installation and operation.
2 Autocompensator
assembly The autocompensator pick roll shaft assembly is not providing
enough torque if the pick rollers are not picking the paper correctly.
Replace the autocompensator assembly.
3 Wear strips in tray x
problem is found. Check the wear strips for excessive wear, scratches, or rough spots.
Replace the wear strips if a problem is found.