Error Messages, Codes, and Procedures 3-235
Printer Front Door is Open - Front Cover is Open
The Printer’s Front Door Interlock Switch indicates that the Front Door is open.
8
Check the Punch Box Set Sensor signal.
Does the voltage across P/J8307-A2 <=>
P/J8307-A3 on the Finisher Main PWB
change when the Punch Box is removed
or replaced?
Go to Step 9. Replace the
Punch Box Set
Sensor
(
page 3-154).
9
Replace the Finisher Main PWB.
Does the error still occur?
Replace the
Engine Logic
Board
(
page 8-89).
Problem solved.
Front Door Open (Front Door Interlock) Troubleshooting Reference
Applicable Parts References
â– Front Cover Interlock
Switch
â– Engine Logic Board.
â– Print Engine P/J Engine Logic Board (page 10-13)
â– Print Engine P/J Locator LVPS (page 10-16)
â– Print Engine LVPS Wiring (page 10-21)
â– PL1.1 Covers (2/2) (page 9-6)
â– PL8.1 Print Engine Electrical (page 9-40)
Front Door Open (Front Door Interlock) Troubleshooting Procedure
Step Actions and Questions Yes No
1
Check Front Door operation.
Does the Front Door open and close
normally?
Go to Step 2. Correct the
installation.
2
Test the Front Door Interlock Switch.
Run the Service Diagnostics Front Cover
Switch test.
Does the sensor status change when
the Front Door is opened and closed?
Replace the
Engine Logic
Board.
Go to Step 3.
3
Check the switch connections.
Are P/J121 and P/J405 connected?
Go to Step 4. Connect P/J121
and P/J405.
4
Check continuity between the switch and
the Engine Logic Board.
Is there continuity on each wire
between P/J121 <=> P/J405?
Go to Step 5. Repair the wiring.
Punch Box Full (Punch Box Counter) Troubleshooting Procedure (Continued)
Step Actions and Questions Yes No