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HP LaserJet M4345 MFP - Page 462

HP LaserJet M4345 MFP
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Control panel message Description Recommended action
3. If the delivery rollers are not turning,
go to step 6.
4. If the jogger guides are not in the
correct position to receive paper and
are obstructing paper, check the
jogger-guide sensors and connectors
on the jogger assembly. If necessary,
replace the jogger assembly.
5. If the problem only occurs when
stapling, check for deformed staples. If
deformed staples are found, replace
the staple cartridge and/or stapler
assembly. If paper is being held back
from exiting by the clamping device
while stapling, go to step 6.
6. If none of the above corrects problem,
replace the stapler/stacker unit.
13.12.09 Jam In Left Accessory Stay jam at the entrance to the stapler/
stacker. Sensor PS1301 stayed activated
longer than expected.
This signal is generated by sensor PS1301
(paper-inlet sensor). PS1301 is located
under the lower-entrance guide plate with
the sensor arm extending up through the
guide plate and into the paper path.
1. Check PS1301 sensor and flag for
smooth operation and damage. Make
sue that the lower plate is free and is
not touching the sides of the cutout of
the lower guide plate that the arm
operates within. If damaged, go to
step 7.
2. Check for any damage or obstructions
to the entrance of the upper and lower
guide plates. If damaged, go to step 7.
3. Inspect the upper-entrance guide plate
to make sure its alignment allows the
sensor arm to move freely though the
hole cut in it for the sensor arm. If
damaged, go to step 7.
4. Check for excessive paper curl when
paper leaves the fuser. The cause
could be damp paper.
5. Clean PS1301 by gently blowing air
into the sensor.
6. Check connection J1303 on the
stapler/stacker driver board.
7. If none of the above corrects the
problem, replace the stapler/stacker
unit.
13.12.10 Jam In Left Accessory Delay jam in entry. Paper did not arrive at
the paper-inlet sensor PS1301 within the
expected time.
This signal is generated from sensor
PS1301 (paper-inlet sensor). PS1301 is
located under the lower entrance guide
plate with the sensor arm extending up
1. Check for excessive paper curl as
paper leaves the fuser. The cause
could be damp paper.
2. Check for any damage to the entrance
guide plates.
ENWW Solve stapler/stacker problems 445
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