Citizen iDP-3210 User Manual download pdf (Page 35)

iDP3210 User’s Manual

CITIZEN

6.1.3 I/O SIGNALS

(1) Input Signals to the Printer

• DATA : 8-bit parallel signal (positive logic)

• STB : Strobe signal to read 8-bit data (negative logic)

• RESET : Signal to reset the entire printer (negative logic) 1m sec or more

(2) Output Signals from Printer

• ACK : An 8 bit data request signal. Pulse signal output at the end of the BUSY signal.

(negative logic)

• BUSY : The signal to indicate BUSY state of the printer. Input new data for "LOW".

(positive logic)

• FAULT : The signal which is made "LOW" when the printer is in alarm state. All the control

circuits inside the printer are stop ped at this time.(negative logic)

• PE : The signal which is output when paper runs out or goes scarce. (positive logic)

• Drawer Switch Output

: With the switch open, this signal goes "HIGH". When shorting, this goes "LOW".

(3) Power supply

• +5 V DC : This is 5V pulled up by a 3.3k Ω resistor.

• GND : This is the common ground for the circuit.

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Citizen iDP-3210 User Manual Page 35