IBM Infoprint 6500-v05 Maintenance Manual page 463

Symptom
019 STACKER FAULT
CHECK STACKER
Stacker "chatters" at upper or
lower limit
Stacker does not stack properly
Stacker elevator does not
move
Stacker elevator moves by
itself
Stacker limit switch check
Table 7. Power Stacker Problems
Origin of Symptom
Message on operator panel
LCD.
Reported by customer.
Reported by customer.
Reported by customer.
Reported by customer.
Other troubleshooting
procedures.
Explanation
1. The stacker elevator may be
obstructed. The message will
always occur if the user presses
the ELEVATOR UP key on the
stacker operator panel to move
the elevator and the elevator is
blocked so that it cannot move to
the top of its travel.
2. Controller hardware tells firmware
that an over-current condition
exists. This will only occur if the
controller board or the stacker
motors are bad.
Various causes possible.
Various causes possible.
Various causes possible.
Various causes possible.
This procedure tests the motion limit
switch at the top and bottom of the
right vertical rail. You will usually be
referred to this procedure from other
troubleshooting procedures. When
you have completed this procedure,
return to the procedure that sent you
there.
Solution
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