Panasonic UF-6300 Service Manual page 92

4.3.10. Information Codes: 030, 031 (Document Jam)
START
Is the document path blocked?
No
Does the Tx Motor rotate?
Yes
Does the document feed into the
unit?
Yes
Does the voltage on A-Point and
B-Point Sensor Pin 2 of PNL1
PCB, vary between 0 and +5V
when a document is set and
removed?
Yes
END
Yes
Remove the blockage.
No
1. Replace the Tx Motor.
2. Replace the SC PCB.
No
Check all gears and rollers.
No
Replace the PNL1 PCB.
92