Detecting Jams - Canon GP200 Service Manual

3. OPERATIONS AND TIMING
M. Detecting Jams
1. Outline
As many as seven paper sensors (Figure 3-655) are used to check whether copy paper is moving prop-
erly or to check for jams.
The microprocessor on the DC controller PCB runs checks at such times as programmed in advance
in reference to the presence/absence of paper at specific sensors. When it detects a jam, it will turn OFF
the main motor and indicate the Jam message on the control panel.
PS13
PS4 Multifeeder paper sensor
PS5 Pre-registration paper sensor
PS7 Fixing rear paper sensor
PS8 Vertical path paper sensor
PS11 Re-pick up front paper sensor
PS12 Lower feeding assembly inlet sensor
PS13 Delivery assembly paper sensor
*Jack in the signal line on the DC controller PCB.
3–130
COPYRIGHT © 1996 CANON INC.
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PS7
PS12
Figure 3-655
Sensor
Table 3-614
CANON GP215/200 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
PS5
PS4
PS8
PS11
Signal
MFPD*
PDP 1
PDP 3
PDP 4
PDP 5*
PDP 6*
PDP 7*
Jack*
J113-A11
113-A5
J109-6
J113-A2
J103-2
J105-B2
J105-A2