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Diagnostic Information 2-89
4069-XXX
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.
Double Feeding Paper
Note: If double feeding paper occurs mostly from the bottom of the
stack, check for missing or damaged restraint pads in the tray.
FRU Action
1 Paper Paper is usually the primary cause of
a double feeding paper problem.
Flex the paper before placing the
paper in the tray. Edge-welded paper
is the most common cause of double
feeding. Loading the paper in the
tray in different locations and
directions and using rough paper
and short grain paper also causes
double feeding.
2 Autocompensator Make sure the counterbalance
spring is not missing, loose or
broken at the top of the
autocompensator arm assembly. If
you find a problem, replace the
autocompensator assembly.