Epson Stylus Photo895 Service Manual page 149

EPSON Stylus PHOTO 895/785EPX/915/825
Table 7-5. CN5 PE Sensor
Pin Signal name I/O
1 PE In
2 GND ---
3 PEV ---
Table 7-6. CN7 Printer PNL
Pin Signal name I/O
1 SWB2 In
2 LEDB1 Out
3 SWB3 In
4 +5V ---
5 GND ---
6 SWB1 In
7 SWB0 In
8 PSC In
Table 7-7. CN8 Printhead
Pin Signal name I/O
1 SI6 Out
2 SI5 Out
3 SI4 Out
4 GND ---
5 SCK Out
6 GND ---
7 CH Out
8 COC In
Appendix
Function
Sensor detection signal
Ground
Sensor supply voltage
Function
Cartridge key
Error LED
Roll paper key
+5V power supply
Ground
Maintenance key
Power key
Power switch
Function
Print data output (6)
Print data output (5)
Print data output (4)
Ground
Serial clock
Ground
Waveform selection signal of the MS and
variable shots
Color I/C detection signal
Connector Summary
Table 7-7. CN8 Printhead
Pin Signal name I/O
9 RXD Out
10 COB In
11 TXD In
12 VDD3.3 ---
13 GND ---
14 COM ---
15 GND ---
16 COM ---
17 GND ---
Table 7-8. CN9 Printhead
Pin Signal name I/O
1 COM ---
2 GND ---
3 COM ---
4 GND ---
5 VHV ---
6 GND ---
7 SEL In
8 GND ---
9 VDD ---
10 LAT Out
11 GND ---
12 NCHG Out
Revision B
Function
CSIC output
Black I/C detection signal
CSIC output
Logic power supply (+3.3V)
Ground
Head drive pulse (trapezoid wave)
Ground
Head drive pulse (trapezoid wave)
Ground
Function
Head drive pulse (trapezoid wave)
Ground
Head drive pulse (trapezoid wave)
Ground
+42V power supply for nozzle selector
Ground
Command select
Ground
Logic power supply (+5V)
Head data latch pulse output
Ground
All nozzle fire selection pulse
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