Input And Output Signals - Citizen iDP-3420 Bedienungsanleitung

9.3

Input and Output Signals

9.3.1 Input and Output Signals
(1) Input signals to the printer
• DATA
• STB
• RESET
(2) Output signals from the printer
• ACK
• BUSY
• FAULT
• SELECT : A signal to show whether the printer is selected (On-line) or deselected. (Positive
• COMPULSION
• PE
(3) Power related signal
• GND
• Vcc
: An 8-bit parallel signal. (Positive logic)
: A strobe signal to read the 8-bit data. (Negative logic)
: A signal to reset the printer from the outside. (Negative logic)
: An 8-bit data request signal. A pulse signal output at the end of the BUSY signal.
(Negative logic)
: A signal to indicate the BUSY status of the printer. Input new data when at "LOW".
(Positive logic)
: A signal turned to "LOW" when the printer has an alarm. At this time, all the control
circuits in the printer stop. (Negative logic)
logic)
: A signal to show the status of the drawer switch. (Positive logic)
: A signal to show that the paper has run out. Normal at the "LOW" level, but turned
to the "HIGH" level when the paper has run out.
: Common ground on the circuits
: A +5 V signal. Connected via a 3.3kΩ resistor.
iDP-3420/3421/3423 User's Manual