Canon CLC 1120 Service Handbook page 123

Address bit
P00B 15 power supply cooling fan (FM9) error detection
14 not used
13 24 V off detection (linked to door)
12 not used
11 not used
10 internal static eliminator high voltage error
9 HVT AC error detection
8 cleaning blade reciprocating motor (M7) error
detection
7 buffer path unit locking cam sensor signal
6 not used
5 not used
4 not used
3 not used
2 not used
1 pre-cleaning paper sensor (PS71) signal
0 not used
P00C 15 not used
14 not used
13 not used
12 not used
11 not used
10 not used
9 not used
8 not used
7 not used
6 not used
5 not used
4 not used
3 fixing motor (M5) CLK signal
2 not used
1 drum motor (M2) CLK signal (divided by 1/2)
0 drum motor (M2) CLK signal
Note: The sensor detects paper after the LED of the sensor turns on; normally, '1' is indicated, since the
LED is not ON.
Description
CHAPTER 4 SERVICE MODE
I/O>DC-CON
Remarks
1: error
1: OFF
1: error
1: error
0: error
1: HP
1: paper present (Note)
Alternates between 0 and 1.
Alternates between 0 and 1.
Alternates between 0 and 1.
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