Canon imagePRESS C1 Service Manual - page 958
Chapter 16
16-61
16.3.4
0011-9637
imagePRESS C1 / imagePRESS C1+
T-16-66
5
Optical system home position sensor
1 when it is placed at HP
4
---
3
---
2
LED for size detection
Indefinite
1
Board checking port
This is usually 0.
0
---
P007
7
---
6
ADF download mode (not used)
5
ADF reset signal (not used)
4
ADF download signal (not used)
3
---
2
---
1
---
0
---
P008
7
---
6
---
5
---
4
---
3
---
2
---
1
ON signal of CCD
1 when CCD is ON
0
---
P009
7
---
6
---
5
---
4
---
3
---
2
---
1
---
0
---
Indication
bit
Item
Remarks
P001
7
Not used
6
Delivery motor PWM
5
Delivery clock
0 or 1
4
Not used
3
Not used
2
OSC
Indefinite value
1
Pre-registration sensor
Indefinite value
0
Lead edge signal
This is usually 0.
P002
7
Reverse motor phase B
Indefinite value
6
Separation standard REF
Indefinite value
5
Reverse motor phase A
Indefinite value
4
Separation motor PWM
Indefinite value
3
Belt motor phase B*
Indefinite value
2
Belt motor phase A*
Indefinite value
1
Belt motor phase B
Indefinite value
0
Belt motor phase A
Indefinite value
P003
7
Not used
6
Not used
5
EEPROM CS
Indefinite value
4
SCK0
Indefinite value
3
Not used
2
RxD0
Indefinite value
1
Not used
0
TxD0
Indefinite value
P004
7
Manual feed registration sensor
0 when paper is absent
6
13VL down detection
This is usually 1.
5
24VL down detection
This is usually 1.
Indication
bit
Item
Remarks