Detecting Jams - Panasonic DP-C305 Service Manual

12.1.2.7. Detecting Jams

12.1.2.7.1. Outline
The Microprocessor (CPU) on the Finisher Controller PCB is programmed to check for jams in the Finisher/
Saddle/Puncher (option) at such times as set in advance. It identifies a jam in reference to the presence/
absence of paper at a specific sensor. If a jam is found, the Finisher Controller PCB communicates the
nature of the jam to the Host Machine in the form of a code (which may be checked in service mode of the
Host Machine).
1. Inlet Sensor Delay Jam (1011)
If the Inlet Sensor does not detect the paper 3 times the specified period of time after the paper out
signal was sent from the hooked-up machine.
2. Inlet Sensor Stationary Jam (1021)
If the paper does not pass the Inlet Sensor 3 times the specified period of time after the Inlet Sensor
detected the paper's front edge.
Ver. 1.1
PI1 : Inlet Sensor
PI10 : Folding Position Sensor
Host machine delivery signal
approx. 1.5sec.
Jam check
Inlet Sensor (PI1)
Feed Motor (M1)
approx. 2sec.
Jam check
Inlet Sensor (PI1)
Feed Motor (M1)
PI1
Fig. 2-059
Host machine delivery signal
Jam check
Normal
Inlet Sensor (PI1)
Feed Motor (M1)
Fig. 2-060
Jam check
Normal
Inlet Sensor (PI1)
Feed Motor (M1)
Fig. 2-061
802
PI10
approx. 1.5sec.
Jam
approx. 2sec.
Jam
DP-C405/C305/C265
FEB 2008