Panasonic DP-C321 Service Handbook page 158

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012-904 COMPILER PAPER SENSOR STATIC JAM
Description In either one of the following cases:
• The COMPILER PAPER SENSOR continues to detect
paper when the paper was output automatically due to the
power On initialization.
• The COMPILER PAPER SENSOR detected paper with no
history of paper output to the COMPILER TRAY when all
the INTERLOCK were closed.
BSD on : CH11.6 CH11.11B
Check Items
• Check that the power voltage at the customer site does not
drop.
• The Actuator for return failure
• Run the following DC330 INPUT CHECK to check the
circuit of the Sensor.
DC330 [012-102] COMPILER PAPER SENSOR
• FINISHER PWB failure (PL15.13)
012-910 STAPLE FEED READY FAILURE
Description In either one of the following cases:
• At the staple preparation operation at initialization, the
STAPLE READY SENSOR does not go to READY (L)
status after 13 times of stapling operation.
• The STAPLER READY SENSOR is turned Off (H) just
before the STAPLE.
Though it is possible to run the following Diag on
the machine not installed with the Finisher, an error
will be displayed.
BSD on : CH11.8 CH11.11B
Procedure
Remove the STAPLE HEAD ASSY with a connector
connected. Execute DC330 [012-209].
Manually turn On and Off the STAPLE READY SENSOR.
Is the display switched between H and L?
Y N
Is +5 VDC measured between the STAPLE HEAD ASSY
J886-5 (+) and GND (-)?
Y N
Is +5 VDC measured between the FINISHER PWB
J852-1 (+) and GND (-)?
Y N
Is +24 VDC measured between the FINISHER
PWB J844-2 (+) and GND (-)?
Y N
Check the +24 VDC circuit to the
FINISHER PWB J844-2 by referring to the
BSD CH11.1.
Replace the FINISHER PWB. (PL15.13)
Check the wire between the FINISHER PWB J852-1
and the STAPLE HEAD ASSY J886-5 for an open
circuit or poor contact.
Pull out the cartridge.
Chapter 3 Troubleshooting
Is +5 VDC measured between the FINISHER PWB J852-3
(+) and GND (-)?
Y N
Turn Off the power.
Pull out the J852 on the FINISHER PWB.
Turn On the power.
Is +5 VDC measured between the FINISHER PWB
P852-3 (+) and GND (-)?
Y N
Replace the FINISHER PWB. (PL15.13)
Check the circuit between the J852-3 and the
STAPLE HEAD ASSY J886-3 for short circuit.
Load the cartridge.
Is 0 VDC measured between the FINISHER PWB J852-3
(+) and GND (-)?
Y N
Is 0 VDC measured between the STAPLE HEAD
ASSY J886-3 (+) and GND (-)?
Y N
Replace the STAPLE HEAD ASSY. (PL15.9)
Check the wire between the STAPLE HEAD ASSY
J886-3 and the FINISHER PWB J852-3 for an open
circuit or poor contact.
Replace the FINISHER PWB. (PL15.13)
Restore the STAPLE HEAD to the original status and cheat the
FRONT INTERLOCK SWITCH.
Run DC330 [012-020] (CLOSE).
Does the STAPLE MOTOR operate?
Y N
With DC330 [012-020] running
Is +24 VDC measured between the FINISHER PWB J847-
7 (+) and GND (-)?