Panasonic DP-C321, Service Handbook

Page: 161 / 548

3-87
Chapter 3 Troubleshooting
• The maximum paper size that was loaded at the previous
JOB is "unknown".
BSD on : CH11.10B CH11.11B
Procedure
Remove the FINISHER FRONT COVER.
Enter
DC330 [012-204] and turn it On.
Turn On/Off the STACK A SENSOR with a sheet of paper, etc.
Is the display switched between H and L?
Y N
Check the STACK A SENSOR using the Generic
Permeable Sensor Failure FIP.
Enter DC330 [012-205] and turn it On.
Turn On/Off the STACK B SENSOR with a sheet of paper, etc.
Is the display switched between H and L?
Y N
Check the STACK B SENSOR using the Generic
Permeable Sensor Failure FIP.
Enter DC330 [012-200] and turn it On.
Manually turn On and Off the Actuator of the STACK PAPER
SENSOR.
Is the display switched between H and L?
Y N
Check the PAPER SENSOR using the Generic Permeable
Sensor Failure FIP.
Turn DC330 [012-050] (UP) or DC330 [012-051] (DOWN)
On. Did the STACKER TRAY operate?
Y N
Does the STACKER MOTOR operate (or is it going to
operate)?
Y N
With DC330 [012-050] (UP) running
Is +24 VDC measured between the FINISHER PWB
J847-12 (+) and GND (-)?
Y N
Is +24 VDC measured between the FINISHER
PWB J844-4 (+) and GND (-)?
Y N
Check the INTLK ON +24 VDC circuit to
the FINISHER PWB J844-4 by referring to
the BSD CH12.1.
Replace the FINISHER PWB. (PL15.13)
With DC330 [012-050] (UP) running
Is +24 VDC measured between the STACKER
MOTOR J889-1 (+) and GND (-)?
Y N
Check the wire between the FINISHER PWB
J847-12 and the STACKER MOTOR J889-1 for
an open circuit or poor contact.
With DC330 [012-050] (UP) running
Is +24 VDC measured between the STACKER
MOTOR J889-2 (+) and GND (-)?
Y N
Replace the STACKER MOTOR. (PL15.11)
Check the wire between the FINISHER PWB J847-11
and the STACKER MOTOR J889-2 for an open
circuit or poor contact. If no problems are found,
replace the FINISHER PWB (PL15.13) and
STACKER MOTOR (PL15.11) in sequence.
Check the following:
Remove the other mechanical causes of the STACKER
TRAY not operating.
• The STACKER MOTOR GEAR for wear and damage
• The STACKER TRAY for dragging and improper
installation
• The STACKER ELEVATOR BELT/RACK/GEAR for
wear and damage
Replace the FINISHER PWB. (PL15.13)
012-965 STAPLE NEAR EMPTY
Description In either one of the following cases:
• The LOW STAPLE SWITCH detected LOW STAPLE at
POWER ON and INTERLOCK CLOSE.
• The LOW STAPLE SWITCH detected LOW STAPLE at
STAPLE HEAD CLOSE.
BSD on : CH11.8 CH11.11B
Procedure
Install a new Staple Cartridge loaded with staples.
Is +5 VDC measured between the FINISHER PWB J852-4 (+)
and GND (-)?
Y N
Replace the FINISHER PWB. (PL15.13)
Is +5 VDC measured between the STAPLE HEAD ASSY J886-
2 (+) and GND (-)?
Y N
Check the wire between the STAPLE HEAD ASSY J886-
2 and the FINISHER PWB J852-4 for an open circuit or
poor contact.
Check the wire between the STAPLE HEAD ASSY J886-5 and
the FINISHER PWB J852-1 and between the STAPLE HEAD
ASSY J886-1 and FINISHER PWB J852-5 for an open circuit
or poor contact.
If no problems are found, replace the STAPLE HEAD ASSY
(PL15.9). If the problem persists, replace the FINISHER PWB.
(PL15.13)
Though it is possible to run the following Diag on
the machine not installed with the Finisher, an error
will be displayed.
Though it is possible to run the following Diag on
the machine not installed with the Finisher, an error
will be displayed.