Detecting Jams - Canon GP335 Service Manual

K. Detecting Jams
1. Outline
As man as nine paper sensors are used (Figure 7-142) to make sure that paper is moving
through the machine normally.
The presence/absence of paper is checked at such times as programmed in the microprocessor
(DC controller) on the image processor PCB; upon detection of a jam, the main motor is stopped
and a Jam message will be indicated on the control panel.
PS7
PS3 Multifeeder paper sensor
PS4 Pre-registration paper sensor
PS6 Reversing assembly inlet sensor
PS7 Delivery sensor
PS8 Duplexing assembly inlet sensor
PS9 Vertical path paper sensor
PS11 Re-pick up paper sensor
PS18 Cassette 1 pick-up sensor
PS19 Cassette 2 pick-up sensor
PS40 Fixing assembly outlet sensor
* Pin No. of the signal line on the DC controller PCB.
COPYRIGHT © 1999 CANON INC. CANON 405/335 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
PS6
PS40
PS8
Figure 7-142
Name
Table 7-110
CHAPTER 7 PICK-UP/FEEDING SYSTEM
PS4
PS11
PS9
Q1604
Q1605
Signal
PS3S
PS4S
PS6S
PS7S
PS8S
PS9S
PS11S
PS18S
PS19S
PS40S
PS3
PS18
PS19
Pin No.*
J108-B2
J108-B11
J106-2
J107-2
J114-B2
J114-B5
J108-B8
J108-A17
J108-A18
J114-A2
7-43