Control panel message Description Recommended action
Corrupt Firmware In External Device The stapler/stacker needs a firmware
upgrade.
1. Go to http://www.hp.com/support to
download the latest firmware and
review the upgrade procedure.
2. Install the latest firmware on the device.
3. If the new firmware does not correct
the problem, replace the stapler/
stacker unit.
Left Output Bin Full The control panel indicates that the output
bin is full; however, there is no paper in the
output tray.
The signal is generated by sensor PS1306
(delivery-full sensor). Sensor PS1306 is
located on left side of stapler/stacker,
above the delivery rollers. The sensor is
activated by paper exiting the output device
lifting the delivery flappers.
1. Verify that the output flappers used to
actuate the sensor flag are not caught
behind the jogger guides and have full
range of motion needed to actuate the
sensor.
2. Check the sensor flag and actuator
movement, making sure that by
raising the output flappers the sensor
flag actuates PS1306.
3. Clean PS1306 by gently blowing air
into the sensor.
4. Check sensor PS1306 mounting.
5. Check the wiring connector at sensor
PS1306 as well as connector J1313
on the stapler/stacker driver board.
6. If none of the above corrects the
problem, replace the stapler/stacker
unit.
Output Paper Path Open The stapler door is open, or the stapler/
stacker is not fully latched to the MFP.
This signal is generated by switch SW1301
(door switch). Switch SW1301 is located
behind the front cover and is actuated by a
tab on the stapler door and a tab on the
engine.
1. Inspect the stapler-access door for
damage or misalignment, and also
make sure that the actuation tab is not
broken off of the door. If there is
damage, replace the stapler/stacker
jam-access door or replace the front
cover assembly (includes the front
cover and the jam-access door).
2. Inspect SW1301 and the actuator
assembly for damage or mounting
problems. If damaged beyond repair,
go to step 4.
3. Check wiring connection J1304 on the
stapler/stacker driver board.
4. If none of the above corrects the
problem, replace the stapler/stacker
unit.
ENWW Solve stapler/stacker problems 449
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