Epson Stylus Photo785EPX, Руководство по обслуживанию

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EPSON Stylus PHOTO 895/785EPX/915/825 Revision B
Appendix Connector Summary 149
Table 7-5. CN5 PE Sensor
Pin Signal name I/O Function
1 PE In Sensor detection signal
2 GND --- Ground
3 PEV --- Sensor supply voltage
Table 7-6. CN7 Printer PNL
Pin Signal name I/O Function
1 SWB2 In Cartridge key
2 LEDB1 Out Error LED
3 SWB3 In Roll paper key
4 +5V --- +5V power supply
5 GND --- Ground
6 SWB1 In Maintenance key
7 SWB0 In Power key
8 PSC In Power switch
Table 7-7. CN8 Printhead
Pin Signal name I/O Function
1 SI6 Out Print data output (6)
2 SI5 Out Print data output (5)
3 SI4 Out Print data output (4)
4 GND --- Ground
5 SCK Out Serial clock
6 GND --- Ground
7 CH Out Waveform selection signal of the MS and
variable shots
8 COC In Color I/C detection signal
9 RXD Out CSIC output
10 COB In Black I/C detection signal
11 TXD In CSIC output
12 VDD3.3 --- Logic power supply (+3.3V)
13 GND --- Ground
14 COM --- Head drive pulse (trapezoid wave)
15 GND --- Ground
16 COM --- Head drive pulse (trapezoid wave)
17 GND --- Ground
Table 7-8. CN9 Printhead
Pin Signal name I/O Function
1 COM --- Head drive pulse (trapezoid wave)
2 GND --- Ground
3 COM --- Head drive pulse (trapezoid wave)
4 GND --- Ground
5 VHV --- +42V power supply for nozzle selector
6 GND --- Ground
7 SEL In Command select
8 GND --- Ground
9 VDD --- Logic power supply (+5V)
10 LAT Out Head data latch pulse output
11 GND --- Ground
12 NCHG Out All nozzle fire selection pulse
Table 7-7. CN8 Printhead
Pin Signal name I/O Function