Printronix P7000 Series Maintenance Manual page 111

Table 4. P7000 ASCII (Spool) Error Messages List
Displayed Message
STACKER JAM
Explanation
This message is triggered if
there is paper inside the
throat of the stacker
elevator, but the elevator is
not moving.
List Of Messages
Solution
1. Open the cabinet rear door and
check for obstructions preventing
elevator movement. Remove any
obstructions.
2. Check that the wheel of the
stacker paper motion detector
rests against the rear brace of the
paper throat. Also make sure the
wheel rotates freely. If necessary,
gently bend the brace toward the
paper motion detector wheel until
the wheel contacts the brace.
Clean the stacker paper motion
detector.
3. Power on the printer. Operate the
power stacker and check that:
a) all motors are operating,
b) the paddles are rotating,
c) the elevator moves smoothly
and without obstruction,
d) the timing belts are
undamaged and the belt pulleys
are not slipping,
e) extension springs are attached
and not bent or stretched),
f) drive rollers are not damaged.
Tighten setscrews and replace
damaged components as
necessary.
4. Power off the printer. Remove the
paper path. Disconnect stacker
cables from the controller board,
stacker assembly, and stacker
control panel. Check cables for
cuts, breaks, or damaged pins.
Check continuity of cables. (See
Appendix A.) Replace any cable
that is damaged or fails continuity
test.
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