Panasonic DP-C321 Service Handbook page 154

3-80
Y N
Is +24 VDC measured between the FINISHER PWB
J846-6 (+) 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 CH11.1.
Replace the FINISHER PWB. (PL15.13)
Check the wire between the FINISHER PWB J846
and the EJECT MOTOR J881 for an open circuit or
poor contact. If no problems are found, replace the
EJECT MOTOR (PL15.8) and the FINISHER PWB
(PL15.13) in sequence.
Remove the other mechanical causes of the EJECT
CLAMP not operating, such as wear or damage of the
GEAR, BELT, and EJECT CAM.
Replace the FINISHER PWB. (PL15.13)
012-262 EJECT CLAMP HOME SENSOR OFF
FAILURE
Description The EJECT CLAMP HOME SENSOR does not
turn Off within 200ms after the EJECT CLAMP DOWN has
started.
Though it is possible to run the following Diag on
the machine not installed with the Finisher, an error
will be displayed.
BSD on : CH11.9 CH11.11B
Procedure
Replace the FINISHER REAR COVER.
Remove the EJECT CLAMP HOME SENSOR BRACKET.
(Leave the Connector plugged in)
Enter DC330 [012-210] and turn it On.
Turn On/Off the EJECT CLAMP HOME SENSOR with a sheet
of paper, etc.
Is the display switched between H and L?
Y N
Check the EJECT CLAMP HOME SENSOR using the
Generic Permeable Sensor Failure FIP.
Restore the Sensor to the original state.
Enter DC330 [012-032] and turn it On.
Was the ELECT CLAMP down?
Y N
Was the operating sound of the EJECT MOTOR audible?
Y N
Is +24 VDC measured between the FINISHER PWB
J846-6 (+) 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 CH11.1.
Replace the FINISHER PWB. (PL15.13)
Check the wire between the FINISHER PWB J846
and the EJECT MOTOR J881 for an open circuit or
poor contact. If no problems are found, replace the
EJECT MOTOR (PL15.8) and the FINISHER PWB
(PL15.13) in sequence.
Remove the other mechanical causes of the EJECT
CLAMP not operating, such as wear or damage of the
GEAR, BELT, and EJECT CAM.
Replace the FINISHER PWB. (PL15.13)
Chapter 3 Troubleshooting
012-267 DECURLER FAILURE
Description The level of the DECURLER CAM HOME
SENSOR did not change at 400 ms after the DECURLER CAM
CLUTCH has turned On. (The position of the CAM cannot be
determined.)
Though it is possible to run the following Diag on
the machine not installed with the Finisher, an error
will be displayed.
BSD on : CH11.5 CH11.11A
Procedure
Replace the FINISHER REAR COVER.
Enter DC330 [012-217] and turn it On.
Rotate the Actuator and turn the DECURLER CAM HOME
SENSOR On/Off.
Is the display switched between H and L?
Y N
Check the DECURLER CAM HOME SENSOR using the
Generic Permeable Sensor Failure FIP.
Enter DC330 [012-070] and turn it On.
Was the DECURLER CAM CLUTCH energized?
Y N
Check the DECURLER CAM CLUTCH using the
Solenoid/Clutch Not Energized Failure FIP.
Enter DC330 [012-071] and turn it On.
Does the DECURLER CAM rotate?
Y N
Check the following:
• The DECURLER CAM CLUTCH for slippage
• The Driver Gear for wear, a revolution failure, and
breakage
• The BELT for disengagement, breakage, and
improper tension
Remove the other mechanical causes of the DECURLER
CAM not operating.
Replace the FINISHER PWB. (PL15.13)