Detecting Jams - Canon FINISHER-C1 Service Manual

L.

Detecting Jams

The following sensors are used to detect the presence/absence of paper and to make sure that
sheets are moved properly.
Inlet sensor (PI1)
Delivery sensor (PI3)
Stapling tray sensor (PI4)
Buffer path paper sensor (PI14)
Buffer path inlet paper sensor (PI7)
A jam is identified with reference to the presence/absence of paper at each specific sensor at
such times as programmed in the memory of the microprocessor (CPU) on the finisher driver PCB.
When the CPU identifies a jam, it suspends the finisher's delivery operation and informs the
options controller of the presence of a jam.
The tray 1 paper sensor (PI11), tray 2 paper sensor (PI12), and tray 3 paper sensor (PI13) are
not used to detect jams.
COPYRIGHT © 1998 CANON INC. FINISHER-C1/SADDLE FINISHER-C2 REV. 0 DEC. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2 FINISHER UNIT BASIC OPERATION
PI3
PI4
Figure 2-270
No. Sensor names
PI1 Inlet sensor
PI3 Delivery sensor
PI4 Stapler tray sensor
PI14 Buffer path paper sensor
PI17 Buffer inlet paper sensor
Table 2-203
PI17
PI1
PI14
2-49