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BJC-5000
4) Circuit diagram
Figure 4-18 Bubble Jet Head Driver Block Diagram (Black BJ Cartridge)
HTO
Temperature Control Heater x 2
HVH
HTI
TOP
Rank Resistor
VHG
Sub-heater x 2
W-HT
<0>
HENB
<1>
Odd ENB
Even ENB
<0>
BENB
<1>
<2>
Block Enable Decoder
128-bit Shift
Resistor
128-bit Latch
128
HDATA
HCLOCK
HRES
HLATCH
HVdd
HVss
DIODE A
Head
Temperature
Sensor
DIODE K
ID0
ID1
INKS2
BC-23 only
Temperature Control Heater x 2
HT0
HVH
HT1
INKS2
HTA
HTB
HENB<1>
HENB<2>
HENB<3>
HTC
HENB<0>
HTD
Odd ENB
Even ENB
SEL1
SEL2
BENB3
BE0
0
BE1
BENB1
1
BE2
BENB2
2
2-4 Block Enable Decoder
BE3
3
136-bit Shift
Resistor
136-bit Latch
1
2
3
4
8
9
16
17
72
73
135
136
HDATA
HCLK
HRES
HLATCH
DIODE A
Head
Temperature
Sensor
DIODE K
HVdd
GNDL
ID0
Color BJ Cartridge
ID1
(Multi-drop)
Photo BJ Cartridge
ID0
ID1
(Multi-drop)
TOP
VHD
W-HT
Color BJ cartridge (Multi-Drop) and photo BJ cartridge (Multi-Drop) have
the same circuit configuration except for the ID1 connection.
Figure 4-19 Bubble Jet Head Driver Block Diagram
(Color/Photo BJ Cartridge) (Multi-Drop)
Heater 1
1
2
1
2
3
4
8
16
Delay
17
1
16
128-bit
Tr.
Array
113
114
127
128
Delay
11
11
11
11
Heater
127
128
272-bit
Tr.
Array
4-23
Part 4: Technical Reference
128
Heater 1A
Heater 1B
Heater 2A
Heater 2B
Heater 3A
Heater 3B
Heater 4A
Heater 4B
Heater 8A
Heater 8B
Heater 9A
Heater 9B
Heater 16A
Heater 16B
Heater 17A
Heater 17B
Heater 72A
Heater 72B
Heater 73A
Heater 73B
Heater 135A
Heater 135B
Heater 136A
Heater 136B
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