4511-xxx
2-94 Service Manual
Paper feed service checks
Paper jam error indication during POST
Paper picks during POST and/or continuously
FRU Action
Exit sensor If the exit sensor flag is not resting within the
paper exit sensor during POST, the printer
displays a paper jam message. Make sure the
flag is operating freely and is correctly installed.
Input sensor #1 (under
print cartridge
assembly) and
Input sensor #2
(manual)
Make sure the input paper feed sensors are
working properly. A stuck or incorrectly installed
sensor causes this error.
FRU Action
ACM
(autocompensator
mechanism or paper
feed) clutch
Manual feed clutch
Check the ACM clutch for wear. The solenoid
interacts with the clutch to control the motion of
the pick tires.
If the ratchet teeth of the ACM clutch assembly
are worn or broken, the solenoid may not stop
the ACM from rotating. Replace the ACM clutch
assembly if necessary.
Check the manual feed clutch for the same
damage.
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