Canon Booklet Trimmer-A1 Service Manual page 57

2. Signals
a. Input signals
(1) IN (PS107 → trimmer driver PCB);
it is a set detection signal for the waste paper box.
L: waste paper box present
H: waste paper box absent
(2) IN (PS109 → trimmer driver PCB);
it is a waste paper box full detection signal.
L: not full
H: full
(3) LD (M108 → trimmer driver PCB);
it is an error detection signal for M108.
When H, an error is detected.
(4) SCAN OUT 1, 2 (trimmer DC controller PCB → trimmer driver PCB);
it is a serial data line used to communicate the state of the machine to the trimmer DC
controller PCB.
b. Output Signals
(1) GND (trimmer driver PCB → M108);
it is a drive signal for M108.
L: M108 ON
H: M108 OFF
(2) SCN IN1, 2 (trimmer driver PCB → trimmer DC controller PCB); it is a serial data line
used to communicate the state of the machine to the trimmer DC controller PCB.
COPYRIGHT© 2002 CANON INC. 2000 CANON BOOKLET TRIMMER-A1 REV.0 FEB. 2002
CHAPTER 2 BASIC OPERATIONS
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