Epson Stylus Color C60, Service Manual

Page: 147 / 188

EPSON Stylus C50/C60/C61/C62 Revision C
Appendix Connector Summary 139
* Pin No.1/3 is different between Stylus C60 and Stylus C61/C62.
- Stylus C60 : GND
- Stylus C61/C62 : GND2
Table 7-9. CN8 - Printhead (Stylus C60/C61/C62)
Pin Signal name I/O Function
1 GND (GND2)* --- Ground
2 COM --- Head drive pulse (
trapezoid waveform)
3 GND (GND2)* --- Ground
4 VHV --- -42 V power supply for nozzle selector
5 GND --- Ground
6 NCHG Out All nozzle fire selection pulse
7 GND --- Ground
8 LAT Out Head data latch pulse output
9 VDD3.3 --- Logic power supply (+3.3V)
10 CSCK Out Clock signal for EEPROM
11 COI In I/C detection signal
12 CRST Out Reset signal for EEPROM
13 THM In Thermistor detection signal
14 CSDA In/Out CSIC data signal for EEPROM
15 CVDD --- Logic power supply (+3.3V) for EEPROM
Table 7-10. CN9 - Printhead (Stylus C50)
Pin Signal name I/O Function
1 COM --- Head drive pulse (
trapezoid waveform)
2 GND --- Ground
3 SCK Out Serial clock
4 GND --- Ground
5 CH Out
Waveform selection signal for MS shot &
Variable shot
6 GND --- Ground
7 LAT Out Head data latch pulse output
8 VDD --- Logic power supply
9 SI1 Out Printing data output (1)
10 SI2 Out Printing data output (2)
11 SP Out Selection signal for CH signal