Chapter 3 Operations And Timing - Canon NP6012 Service Manual

LESS SS SSS OPERATIONS AND TIMING
C. Inputs to and Outputs from the DC Controller
1. Inputs to the DC Controller (1/2)
Scanner home position
sensor
Lens home position
sensor
Delivery sensor
Fixing film
displacement sensor
DC controller PCB
Ly J101-2| 4+5v
mi SCHP
PS1}_ -3|
1 i—— _ 4 asv
Waste toner sensor E j= TNFULL
2 |) >
Pre-registration
roller paper sensor
Cassette paper
sensor
Main thermistor
(thermal control)
Sub thermistor
(overheating)
| Q752
pot —™
COPYRIGHT © 1995 CANON INC.
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"3! APD
when scanner is at home position, '0'.
(when light-blocking plate is at PS1, '0')
when lens is at home position, '1'.
(when light-blocking plate is at PS2, '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')
when toner reaches specific level, '1'.
(when light-blocking plate is at PS5, '0')
when Q751 detects paper, '1'.
(when light-blocking plate is at Q751, '0')
when paper is present in cassette, '0'.
(when tight-blocking plate is at 752, '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
CANON NP6012/NP6O12F /NP6212 REV.1 SEPT. 1995 PRINTEDIN JAPAN (MPRIME AU JAPON) 3-3