Canon NP6251 Service Manual page 62

CHAPTER 2 BASIC OPERATION
Inputs to the DC Controller (8/8)
Cassette 3 paper
SV1
length detection
Cassette 4 paper
SV2
length detection
4-cassette/front paper
deck type identification
jumper wire
(part of copier harness)
Fixing assembly
TH1
main thermistor
Fixing assembly
TH2
sub thermistor
Environment
THHUM1
sensor
2-20
COPYRIGHT © 1997 CANON INC.
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J827-4 J122A-4
-1
-2
-3
J829-4
J122B-4
-1
-2
-3
J119B-2
J2745-2 J2757-6 J108A-15
-1 -7
J2721-1 J2757-8 J108A-9
-9
-2
J8492-4
-5
-1
-2
-3
Figure 2-115
CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
DC controller PCB
+5V
-1
Varies according to the length
C3PL0
-2
of copy paper.
C3PL1
-3
+5V
-1
Varies according to the length
C4PL0
-2
C4PL1
of copy paper.
-3
+5V
When the 4-cassette type is
4C3KSW*
used, '0'.
-1
When the temperature of the
fixing roller increases,
TH1
the voltage decreases.
(analog signal)
-16
When the temperature of the
TH2
fixing roller increases,
the voltage decreases.
-17 (analog signal)
When the temperature inside
J116B-2
HUM2
the machine increases, the
-1
voltage decreases.
(analog signal)
+5V
-5
When the humidity inside the
-4 machine increases, the voltage
HUM1
decreases.
-3
(analog signal)