Canon bjc-7100 Manuale Di Servizio
7. CONNECTOR LAYOUT AND SIGNAL ASSIGNMENT
7.1 Logic Board
CNPWR (Connection to AC Adaptor)
CNPGS (Purge Sensor Connector)
CNCR (Carriage Motor Connector)
CNLF (Paper Feed Motor Connector)
5-37
BJC-7100
Part 5: Maintenance
1
8
CNPWR
CNIF
1
18
19
36
CNLF
1
4
CNCR
1
4
1
3
CNPGS
CNHEAD1
1
1
2
2
27
28
29
28
CNHEAD2
Figure 5-16 Logic Board
Pin No.
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
Signal
VH
VH-GND
VM
VM-GND
VCC
VCC-GND
VHON
GND
IN/OUT
IN
...
...
...
IN
...
IN
OUT
...
Function
Head drive voltage (20.0 ± 0.3VDC)
VH GND
Motor drive voltage (27.6 ± 1.5VDC)
VM GND
Logic drive voltage (5.0 ± 0.25VDC)
VCC GND
VH output control
GND
VH GND
Motor drive voltage (27.6 ± 1.5VDC)
VM GND
Logic drive voltage (5.0 ± 0.25VDC)
VCC GND
VH output control
GND
Pin No.
1
2
3
4
2
3
4
Signal
CRA
CRB
CRB
CRB
CRA
IN/OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
Function
A-phase drive voltage
B-phase drive voltage
B-phase drive voltage
A-phase drive voltage
B-phase drive voltage
B-phase drive voltage
A-phase drive voltage
Pin No.
1
2
3
4
2
3
4
Signal
LFA
LFB
LFB
LFB
LFA
IN/OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
Function
A-phase drive voltage
B-phase drive voltage
B-phase drive voltage
A-phase drive voltage
B-phase drive voltage
B-phase drive voltage
A-phase drive voltage
Pin No.
1
2
3
2
3
Signal
LEDON
GND
PGS
IN/OUT
OUT
...
IN
Function
Photointerruptor LED drive voltage
GND
Purge unit module initial phase detection
GND
Purge unit module initial phase detection