Canon BJC 50 Service Manual - Page 95

Canon BJC 50 - Color Inkjet Printer Manual

Get Canon BJC 50 - Color Inkjet Printer PDF manuals and user guides View all Canon BJC 50 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 95 highlights

BJC-50 1.5 Scanner Drive Part 4: Technical Reference The scanner cartridge is recognized by the scanner cartridge contacts and TOP.S, C.CHA and C.CHK signals. These three signals are equivalent to the TOP, DIODE A and DIODE K signals of the BJ cartridge. Color distinction is performed by ID 0 and ID 1 as in the BJ cartridge. The three signals, CMD 0 (REN), CMD 1 (RWR) and CMD 3 (RDT) are used to set data in the scanner resistor. These signals correspond with the ODD ENB, BENB 0 and BENB 1 signals of the BJ cartridge. Together with a clock signal, serial data is output to the resistor. Data scanned with a scanner cartridge is output by S.SCLOCK (DTCK), S.SYNC (LNST) and S.DATA (DT). The scanner cartridge is operated when the S.SYNC (LNST) signal is inputted. The scanning dot data set in the resistor is output as serial data in sync with a clock signal. Output clock frequencies Scanner ¨ Printer Binary: 1MHz Multi-valued: 2MHz or 4MHz Scanner Cartridge Contact Signals Terminal Scanner Signal No. Signal Name Polarity 1 LAMP G n/a 2 LAMP G n/a 5 V LAMP n/a 6 V LAMP n/a 9 TOP.S O 10 DIAS 11 ID 0 O 12 ID 1 O 13 SQW 14 VSS n/a 19 CMD 0 (REN) I 20 CMD 1 (RWR) I 21 CMD 2 (RDT) I 22 CMD 3 (N.C.) 23 VDD n/a 24 S CLOCK (DTCK) O 25 S SYNE (LNST) I 26 S RES (RST) I 28 S DATA (DT) O 29 DIAS Remarks GND for LED GND for LED 24 V power for LED 24 V power for LED GND for scanner recognition OPEN for scanner recognition Color scanner cartridge detection Color scanner cartridge detection IS-11 and IS-12 detection GND Resistor enable signal Register recording clock signal Resistor data signal Unused 5V power Output clock Line start signal System reset signal Output data OPEN scanner detection Head Signal ASIC Port Signal Name Polarity VHG n/a n/a VHG n/a n/a HVH n/a n/a HVH n/a n/a TOP O Input Port DIODE A O Input Port ID 0 O Input Port ID 1 O Input Port INK S2 Input Port H VSS n/a n/a ODD ENB I Output Port BNEB 0 I Output Port BNEB 1 I Output Port BNEB 2 I Output Port H VDD n/a n/a H CLOCK I Bidirectional Port H LATCH I Output Port H RES I Output Port H DATA I Bidirectional Port DIODE K O Input Port 4-7

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
  • 186
  • 187
1.5 Scanner Drive
The scanner cartridge is recognized by the scanner cartridge contacts and TOP.S,
C.CHA and C.CHK signals.
These three signals are equivalent to the TOP, DIODE A
and DIODE K signals of the BJ cartridge.
Color distinction is performed by ID 0 and ID 1 as in the BJ cartridge.
The three signals, CMD 0 (REN), CMD 1 (RWR) and CMD 3 (RDT) are used to set data
in the scanner resistor.
These signals correspond with the ODD ENB, BENB 0 and
BENB 1 signals of the BJ cartridge.
Together with a clock signal, serial data is output
to the resistor.
Data scanned with a scanner cartridge is output by S.SCLOCK (DTCK), S.SYNC (LNST)
and S.DATA (DT).
The scanner cartridge is operated when the S.SYNC (LNST) signal is
inputted.
The scanning dot data set in the resistor is output as serial data in sync with a clock
signal.
Output clock frequencies
Scanner
➝
Printer
Binary:
1MHz
Multi-valued:
2MHz or 4MHz
Scanner Cartridge Contact Signals
4-7
BJC-50
Part 4: Technical Reference
Terminal
No.
1
2
5
6
9
10
11
12
13
14
19
20
21
22
23
24
25
26
28
29
Scanner Signal
Signal Name
Polarity
LAMP G
n/a
LAMP G
n/a
V LAMP
n/a
V LAMP
n/a
TOP.S
O
DIAS
ID 0
O
ID 1
O
SQW
VSS
n/a
CMD 0 (REN)
I
CMD 1 (RWR)
I
CMD 2 (RDT)
I
CMD 3 (N.C.)
VDD
n/a
S CLOCK (DTCK)
O
S SYNE (LNST)
I
S RES (RST)
I
S DATA (DT)
O
DIAS
Remarks
GND for LED
GND for LED
24 V power for LED
24 V power for LED
GND for scanner recognition
OPEN for scanner recognition
Color scanner cartridge detection
Color scanner cartridge detection
IS-11 and IS-12 detection
GND
Resistor enable signal
Register recording clock signal
Resistor data signal
Unused
5V power
Output clock
Line start signal
System reset signal
Output data
OPEN scanner detection
Head Signal
Signal Name
Polarity
VHG
n/a
VHG
n/a
HVH
n/a
HVH
n/a
TOP
O
DIODE A
O
ID 0
O
ID 1
O
INK S2
H VSS
n/a
ODD ENB
I
BNEB 0
I
BNEB 1
I
BNEB 2
I
H VDD
n/a
H CLOCK
I
H LATCH
I
H RES
I
H DATA
I
DIODE K
O
ASIC Port
n/a
n/a
n/a
n/a
Input Port
Input Port
Input Port
Input Port
Input Port
n/a
Output Port
Output Port
Output Port
Output Port
n/a
Bidirectional Port
Output Port
Output Port
Bidirectional Port
Input Port