Canon BJC-55 Series, Service Bulletin

Page: 159 / 249

6.3 Signal Contacts
The scanner cartridge is recognized by TOP.S, DIAS and CCHK signals. The scanned
image output to the printer is transmitted with a SCLOCK signal in sync with a SDATA
signal.
The scanner is controlled by the internal register setting signals, CMD0, 1, 2 and 3.
4-49
BJC-50
Part 4: Technical Reference
28
29
24
25 26
23
22 21
20
16
17 18
19
27
15
3
11 12 13 14
7
9
10
4 6
5
2
1
8
Scanner Cartridge
Figure 4-35 Contact Pad Layout
TABLE 4-6 LIST OF SCANNER CARTRIDGE SIGNAL CONTACTS
No.
1, 2
5, 6
9
10
11
12
13
14
19
20
21
22
23
24
25
26
28
29
Signal
LAMP G
V LAMP
TOP. S
C. CHA
ID0
ID1
INKS 2
Vss
COM 0 (REN)
COM 1 (RWR)
COM 2 (RDT)
COM 3 (N.C)
Vdd
S CLOCK (DTCK)
S SYNE (LNST)
S RES
S DATA (DT)
C. CHK
Type
...
IN
OUT
OUT
OUT
OUT
OUT
GND
IN
IN
IN
...
...
OUT
IN
IN
OUT
OUT
Description
GND for LED
LED drive voltage (+24Vdc)
Scanner detection GND
Scanner detection OPEN
Color scanner cartridge
acknowledge signal
Color scanner cartridge
acknowledge signal
IS-11/IS-12 detection
GND
Register enable
Register write clock signal
Register data signal
Not used
IC driver voltage (+5Vdc)
Scan data transfer signal
Line start signal
System reset signal
Scan data
HScanner detection OPEN
(Ref. BJ Cartridge)
VHG
HVH
TOP
DIODEA
ID0
ID1
—
HVss
Odd ENB
BENB1
BENB2
BENB3
HVdd
HCLK
HLATCH
HRES
HDATA
DIODEK