Epson 440 - Manual (Page 164)

EPSON Stylus Color 440/640/740 Revision A
Chapter 7 Appendix 164
Table A-5. Connector CN6
Pin Signal Name I/O Function
1 CRA Out Phase drive signal (A)
2 CRB Out Phase drive signal (B)
3 CR-A Out Phase drive signal (-A)
4 CR-B Out Phase drive signal (-B)
Table A-6. Connector CN7
Pin Signal Name I/O Function
1 PFA Out Phase drive signal (A)
2 PFB Out Phase drive signal (B)
3 PF-A Out Phase drive signal (-A)
4 PF-B Out Phase drive signal (-B)
Table A-7. Connector CN8 (C206MAIN-B, C255MAIN )
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 SI2 Out Head data output (2)
8 GND --- Ground
9 SI1 Out Head data output (1)
10 GND --- Ground
11 CLK Out Head data output (1)
12 GND --- Ground
13 NCHG Out Head all on pulse output
14 GND --- Ground
15 VDD --- Logic power supply (+5V)
16 GND2 --- Ground
17 GND2 --- Ground
18 GND2 --- Ground
19 COM --- Head drive power supply
20 COM --- Head drive power supply
21 COM --- Head drive power supply
22 VHV --- Head drive voltage control signal
23 VHV --- Head drive voltage control signal