Canon NP6012F - Inputs to and Outputs from the DC Controller

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C. Inputs to and Outputs from the DC Controller
1. Inputs to the DC Controller (l/2)
DC controller PCB
Scanner home position
sensor
Lens home position
sensor
Mjlogl:j
Delivery sensor
MT
Fixing film
displacement sensor
Waste toner sensor ME
Pre;registration
roller paper sensor
Cassette paper
sensor
Main thermistor
(thermal control)
Sub thermistor
(overheating)
+
-I
A +5v
SCHP
7,
j +5v
LHP
2
DIG3
DPD
:
+5v
FFD
-;I,
3 +5v
when scanner is at home position, ‘0’.
(when light-blocking plate is at PSI, ‘0’)
when lens is at home position, ‘1’.
(when light-blocking plate is at PSZ, ‘1’)
when PS3 detects paper, ‘1’:
(when light-blocking plate is at PS3, ‘0’)
when PS4 detects fixing film, ‘0’.
(when light-blocking plate is at PS4, ‘0’)
TNFULL when toner reaches specific level, ‘1’.
2
(when light-blocking plate is at PS5, ‘0’)
2 +5v
RPD
when Q751 detects paper, ‘1’.
(when light-blocking plate is at Q751, ‘0’)
DIG2
CPD
2
THI
X
TH2
-;I,
when paper is present in cassette, ‘0’.
(when light-blocking plate is at Q752, ‘0’)
when surface temperature of fixing heater
rises, voltage lowers.
when temperature of the rear end of fixing
heater rises, voltage lowers.
Figure 3-103
COPYRIGHT 0 1995 CANON INC.
CANON NP6012/NP6OlZF/NP6212 REV.1 SEPT. 1995 PRINTED IN JAPAN (IMPRIMg AU JAPON) 3-3