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Stylus C40UX/C40SX/C20UX/C20SX Revision A
Appendix Connector Summary 101
Table 7-5. CN9-Printhead
Pin Signal Name I/O Function
1 THM In Thermistor detect signal
2 CH Out
Waveform selection signal for MS shot &
variable shot
3 GND --- Ground
4 LAT Out Head data latch pulse output
5 GND --- Ground
6 NCHG Out All nozzle fire selection pulse
7 GND --- Ground
8 SCK Out Serial clock
9 GND --- Ground
10 SI2 Out Print data output (2)
11 SP Out Select signal for CH signal
12 SI1 Out Print data output (1)
13 VDD --- Logic power supply (+5V)
14 GND9 --- Ground
15 COM --- Head drive pulse (trapezoid waveform)
16 VHV --- +42V power supply for nozzle selector
Table 7-6. CN2-Power Supply Board
Pin Signal Name I/O Function
1 PSC Out Power supply switch output signal
2 GND --- Ground
3 +42V --- Mechanism driven power supply
4 GND --- Ground
5 +5V --- Logic power supply