(7) 24V power detection line
The line monitors 24V power. If the 24V power fed from the copier is not 24V, the level becomes L and the 24V power error is sent to the copier.
(8) Cassette detection line
This line has the same circuit as each sensor. When the LCC cassette door is opened, the CPU becomes at H level; when the door is closed, the
line is connected to GND and the CPU becomes at L level.
(9) LED lighting circuit
This is the LED lighting circuit for the cassette door switch.
When the CPU outputs the L signal, the LED comes on.
24V
R04
22K
R05
4.7K
55
P36/D6
5V
BR04
4.7K
P26/A14
33
R84
10K
1000p
Drawer connector
5V
BR04
2.2K
P27/A15
32
R03
220(1/4W)
LED
TD62504F
IC12E
11 – 3