Epson 440 User Manual download pdf (Page 165)

EPSON Stylus Color 440/640/740 Revision A

Chapter 7 Appendix 165

Table A-8. Connector CN8 (C256MAIN)

Pin Signal Name I/O Function

1 BCO In Black ink cartridge detect signal

2 CCO In Color ink cartridge detect signal

3 THM In Thermistor detect signal

4 GND --- Ground

5 LAT Out Head data latch pulse output

6 GND --- Ground

7 SI3 Out Head data output (3)

8 GND --- Ground

9 SI2 Out Head data output (2)

10 GND --- Ground

11 SI1 Out Head data output (1)

12 GND --- Ground

13 CLK Out Clock pulse for head data transfer

14 GND --- Ground

15 NCHG Out Head all on pulse output

16 GND --- Ground

17 VDD --- Logic power supply (+5V)

18 GND2 --- Ground

19 GND2 --- Ground

20 GND2 --- Ground

21 COM --- Head drive power supply

22 COM --- Head drive power supply

23 COM --- Head drive power supply

24 VHV --- Head drive voltage control signal

25 VHV --- Head drive voltage control signal

Table A-9. Connector CN10

Pin Signal Name I/O Function

1 +42V --- Mechanism drive power supply

2 +42V --- Mechanism drive power supply

3 GND --- Ground

4 GND --- Ground

5 PSC Out Power supply switch output signal

6 GND ---- Ground

7 GND --- Ground

8 +5V --- Logic power supply

Table A-10. Connector CN11

Pin Signal Name I/O Function

1 ASF In Sensor detect signal

2 GND --- Ground

3 ASFV --- Sensor power supply (+5V)

1 2 ... 160 161 162 163 164 165 166 167 168 169 170 ... 211 212

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