Epson Stylus COLOR 900 Service Manual page 171

EPSON Stylus COLOR 900/900N
Table 7-2. Connector Pin Assignment - CN5
Signal
Pin I/O
Name
1, 7 GND —
2, 3, 5, 6 +5 V I
4 PSC I
Table 7-3. Connector Pin Assignment - CN6
Signal
Pin I/O
Name
1, 6 GND —
2, 3, 4, 5 +42 V I
Function
Ground
5 volt supply
Power Control Signal
Function
Ground
42 volt supply
Table 7-4. Connector Pin Assignment - CN8
Pin Signal Name I/O
1 ANODE1 I Row A temperature detection analog signal
2 ANODE2 I Row A temperature detection analog signal
3 GND2A — Ground for Nozzle Row A
4 GND2A — Ground for Nozzle Row A
5 COMa O Power voltage for Nozzle Row A (black)
6 COMb O Power voltage for Nozzle Row A (black)
7 GND2B — Ground for Nozzle Row B nozzles
8 GND2B — Ground for Nozzle Row B nozzles
9 ANODE3 I Row C (Cyan) temperature detection analog
signal
10 ANODE4 I Row D (Magenta) temperature detection analog
signal
11 GND2C — Ground for Nozzle Row C
12 GND2C — Ground for Nozzle Row C
13 COMc O Power voltage for Nozzle Row C
14 COMd O Power voltage for Nozzle Row D
15 GND2D — Ground for Nozzle Row D
16 GND2D — Ground for Nozzle Row D
17 VHV O Power supply for the Nozzle Selector
18 GND — Ground
19 TH I Analog data from the thermistor on the printhead
20 LS2 I Phase B signal from the linear encoder
21 LS1 I Phase A signal from the linear encoder
Chapter 7 Appendix
Function
168