Citizen iDP3221 manual Input and Output Signals, Strobe

iDP3221 User’s Manual

6.3Input and Output Signals

6.3.1Input and Output Signals

(1)Input signals to the printer

	• DATA					: 8-bit parallel signal (Active High)
	•					: Strobe signal to read the 8-bit data (Active Low)
					STROBE
	•					: Signal to reset the entire printer (Active Low); 1 ms or more
				RESET
(2)	Output signals from the printer
	•					: 8-bit data request signal. A pulse signal to be output at the end of the BUSY signal
			ACK
						(Active Low)
	• BUSY					: Signal to indicate that the printer is busy. Input new data when it is "Low." (Active
						High)
	•	FAULT				: Turned to "Low" when the printer has an alarm. At this time, all the control circuits
						in the printer stop. (Active Low)
	• PE					: Output if the printing paper has run out or is running out. (Active High)
	• Drawer Switch Output:
						When connecting a drawer, turned to "High" if the switch is open. Turned to "Low" if
						the switch is closed.
(3)	Power source and the related
	• GND					: Common ground for the circuits

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