Epson Stylus CX3700 Service Manual page 157

EPSON Stylus CX3700/CX3800/CX3805/CX3810/DX3800/DX3850
Table 7-3. CN3 - PE Sensor
Pin Signal Name I/O
1 PE I
2 GND —
3 PEV —
Table 7-4. CN5 - Print Head
Pin Signal Name I/O
1 LAT O
2 VDD —
3 CH O
4 GND —
5 NCHG O
6 VDD2 —
7 XHOT/THM I
8 GND —
9 GND2 —
10 COM O
APPENDIX
Function
PE Sensor signal
Ground
Power supply for PE Sensor
Function
Head data latch pulse output
+3.3V
Charge signal for the trapezoidal wave-form
Ground
All nozzle fire selection pulse
+3.3V
Head temperature signal
Ground
Ground
Head drive pulse (trapezoid waveform)
Connector Summary
Table 7-5. CN6 - Print Head
Pin Signal Name I/O
1 GND2 —
2 COM O
3 VHV O
4 GND —
5 SI2_Col O
6 GND —
7 SI1_Bk O
8 GND —
9 GND —
10 GND —
Table 7-6. CN7 - Print Head
Pin Signal Name I/O
1 COI I
2 CSDA I/O
3 CRST O
4 CGND —
5 CVDD O
6 CSCK I/O
7 NC —
8 GND —
9 ENCB I
10 EVDD O
11 ENCA I
Revision A
Function
Ground
Head drive pulse (trapezoid waveform)
+42V power supply for nozzle selector
Ground
Print data output for color nozzles
Ground
Print data output for black nozzles
Ground
Ground
Ground
Function
Cartridge detect signal
CSIC transmit and receive data
Reset signal for address counter of CSIC
Ground
Power supply for CSIC
Clock signal for CSIC read/write
Not connected
Ground
Encoder feed back signal ch.B
Power for CR Encoder
Encoder feed back signal ch.A
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