COPYRIGHT© 2001 CANON INC.
2000 2000 2000 2000
CANON SADDLE FINISHER K3/K4 REV.0 MAR. 2001
2-16
CHAPTER 2 OPERATION OVERVIEW
1.3.14 Inputs to and Outputs from the Finisher Controller PCB
F02-103-14
Inlet path
paper sensor
PCB (S1)
-1
-2
-3
J98-4
J119A-1
-2
-3
-4
+5V
ENTPCB
ENTLEDAJ
Uses voltage to switch the
light intensity. (analog signal)
When paper is in the path, '0'.
Uses voltage to switch the
light intensity. (analog)
When paper is in the path, '0'.
Lower path
paper sensor
PCB (s3)
-1
-2
-3
-4
-1
-2
-3
J29-4
-1
-2
-3
-4
J28
J118B-8
-9
-10
-11
+5V
LWRPPCB
LWRRLEDAJ
Uses voltage to switch the
light intensify.
Tray B
sensor LED
-1
-2
-8
-7
J69-1
-2
J63B
J107B-8
-7
STKTRYLEDAJ
Uses voltage to switch the
light intensity.
J19-1
-2
Tray A
sensor LED
J117-4
-3
SMPTRYLEDAJ
Alternately between '1' and
'0' according to the position
of tray B.
Tray B area
detection
PCB
-1
-2
-3
-4
J90-5
J109B-5
-4
-3
-2
-1
+5V
BTRYPS3
BTRYPS3
BTRYPS3
Alternately between '1' and
'0' according to the position
of tray A.
Tray A area
detection
PCB
-1
-2
-3
-4
J82-5
J113B-5
-4
-3
-2
-1
+5V
ATRYPS3
ATRYPS2
ATRYPS1
When either or both of paper
surface detection position or
upper curl detection position are
blocked by a stack of paper, '0'.
When paper is remove from
the tray while stacking is
taking place, '1'
Tray A
sensor PCB
(S5)
-1
-2
-3
J99-4
J119A-5
-6
-7
-8
+24VU
SMPTRYPAP
SMPPAPRMV
Uses voltage to switch the
light intensity. (analog signal)
When paper is in the path, '0'.
Buffer path
paper sensor
PCB (S2)
-1
-2
-3
-4
-1
-2
-3
J22-4
-4
-5
-6
-7
J23
J118B-3
-4
-5
-6
+5V
BFLEDAJ
BFPCB
Tray B
sensor PCB
(S4)
-1
-2
-3
-4
-9
-8
-7
-6
-1
-2
-3
J47-4
J45A
J105A-1
-2
-3
-4
+24VU
STKTRYPAP
STKPAPRMV
When either or both of paper
surface detection position or
upper curl detection position are
blocked by a stack of paper, '0'.
When paper is removed from
the tray while stacking is
taking place, '1'.
Finisher controller PCB