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8. Electrical Control
Signal
Size 1
Size 2
Size 3
Size 4
Size 5
Paper End 1
Paper End 2
1st Feed MC
2nd Feed MC
By-pass Feed MC
F/L Feed MC
Relay Roller MC
Registration MC
By-pass Feed
Table Sensor
Registration Sensor
4.4.2 Replacement and Adjustment
1. Paper Size Sensor Replacement (1st
and 2nd feed stations)
1. Remove the paper size sensor from the
sensor bracket (1 screw).
2. Remove the connector and replace the
sensor.
Main Control Board
I/O
CN NO.
I
102–24B Detection: 5 V
I
102–22A
No detection: 0 V
I
102–24A
I
102–22B
I
102–25A
I
102–23B Paper end:
detection
I
102–25B
O
101–5A
O
101–3A
O
101–10A
O
101–2A
O
101–15A
O
101–14B
I
101–15A
I
101–4A
Signal Level
24 V
ON
open
closed
5 V
paper
no paper
- 23 -
Scan Signal
T0 → 1st feed station
size detection
→ 1st feed station
paper end
detection
→ By-pass feed
paper end
detection
T1 → 2nd feed station
size detection
→ 2nd feed station
paper end
detection
→ By-pass feed
station table
open detection
Paper Size Sensor
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