Citizen iDP-3410, User Manual

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iDP3410 User's Manual
21 CITIZEN
9.3 Input and Output Signals
9.3.1 Input and Output Signals
(1) Input signals to the printer
•
DATA : An 8-bit parallel signal. (Positive logic)
•
STB : A strobe signal to read the 8-bit data. (Negative logic)
•
RESET : A signal to reset the printer from the outside.(Negative logic)
(2) Output signals from the printer
•
ACK : An 8-bit data request signal. A pulse signal output at the end of the BUSY signal.
(Negative logic)
•
BUSY : A signal to indicate the BUSY status of the printer. Input new data when at
"LOW". (Positive logic)
•
FAULT : A signal turned to "LOW" when the printer has an alarm. At this time, all the
control circuits in the printer stop. (Negative logic)
•
SELECT : A signal to show whether the printer is selected(on-line) or deselected.(Positive
logic)
•
COMPULSION
: A signal to show the status of the drawer switch.(Positive logic)
•
PE : 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.
(3) Power related signal
•
GND : Common ground on the circuits
•
Vcc : A +5V signal. Connected via a 3.3k
Ω
resistor.