Print Head (S750) - Canon S520 Service Manual

Part 4: Appendix
1.3 Print Head
Pin No.
1,2,8~12,20 VHGND
3 DATAK
4 DATACL
5 DATAML
6 DATAC
7 DATAM
13
14 TOKCL
15
16,26,36
17
18 DATAY
19
20 VHGND
21 HEKCL
22 SOKCL
23 SOMLC
24,27,34 HVDD
25 HED_SEN
28
29 HEMY
30 HEMLC
31,32,40~42
47~50
33
35
37 TOMLC
38
39
43
44 EEP_SK
45
46
50
10
Figure 4-6 Print Head
Signal IN/OUT Function
OUT
OUT
OUT
OUT
OUT
BE3 OUT Block enable 3
IN KCL chip temperature status output
BG OUT Data latch signal
VSS IN
HCLK OUT Data transfer clock
OUT
BE1 OUT Block enable 1
OUT KCL heat signal
IN KCL chip status output
IN MLC chip status output
OUT
IN Head YES/NO
SOMY IN MY chip status output
OUT MY heat signal
OUT MLC heat signal
VH
BE0 OUT Block enable 0
DHE OUT Dummy drive signal
IN MLC chip temperature status output
TOMY IN MY chip temperature status output
BE2 OUT Block enable 2
CSCR OUT Head EEPROM chip select
OUT Head EEPROM clock signal
E_DI OUT Head EEPROM data signal
E_DO IN Head EEPROM data signal
41
1
4-10
S820