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Part 5: Maintenance
7. LOCATION & SIGNAL ASSIGNMENT
7.1 Logic Board
J5 (Ribbon cable connector)
Pin No.
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
32
1
31
J3
4
J5
2
1
Figure 5-9 Logic Board
Signal name
IN/OUT Description
HVG
...
HVG
...
HT0
IN
HT1
IN
HVH
OUT
HVH
OUT
W-HT
OUT
INKS1
...
TOP
IN
DIODEA
OUT
ID0
IN
ID1
IN
INKS2
IN/OUT Cartridge detection and recognition signal
HVss
...
HENB0(Y)
OUT
Even ENB
OUT
HENB1(M)
OUT
HENB3(B)
OUT
Odd ENB
OUT
BENB1
OUT
BENB2
OUT
BENB3
OUT
HVdd
OUT
HCLK
OUT
HLATCH
OUT
HRES
OUT
HENB2(C)
OUT
HDATA
OUT
DIODEK
IN
HPO
IN
HPG
...
HPA
OUT
5
J1
1
1
19
1
J2
J4
J5
5
18
36
GND for head drive voltage VH
GND for head drive voltage VH
Driver signal for temperature control heater
Driver signal for temperature control heater
Head driver voltage
Head driver voltage
Drive signal for temperature control heater
Not used
Detection signal for rank resistance
Head temperature sensor (diode) anode
Cartridge detection and recognition signal
Cartridge detection and recognition signal
Head's logic drive voltage HVdd GND
Heat enable
Even nozzle heat enable
Heat enable
Heat enable
Odd nozzle heat enable
Block enable generation signal
Decoder output signal
IC drive voltage (+5 V)
Print data transfer signal
Timing signal for print data to latch
Latch reset signal
Printing data
Head temperature sensor (diode) cathode
Home position sense High/ Low(sense)
Ground
Photo LED drive
5-30
BJC-4400
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