Citizen Systems iDP-3540/3541 Benutzerhandbuch
iDP-3540/41 User’s Manual
CITIZEN
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8-3. Description of Input / Output Signals
8-3-1. Input / Output Signals
a) Input / Output Signals
*DATA
: 8 bit parallel signal. (Positive logic)
*STB : A strobe signal for reading in 8 bit data. (Negative logic)
*RESET
*RESET
: A signal which resets the entire printer. (Negative logic, 1 ms or more)
b) Output Signals (From Printer)
*ACK : This is a pulse signal for requesting 8 bit data, issued at the end of a BUSY
signal. (Negative logic)
*BUSY : This signal indicates that your printer is in a BUSY state.
New data should be input when this signal is “LOU”. (Positive logic)
*FAULT
: When your printer is in an alarm state, this signal is “LOW”. At this time,
all control circuits of your printer are interrupted. (Negative logic)
all control circuits of your printer are interrupted. (Negative logic)
Note: An alarm condition occurs when the timing of the print head movement sensor is abnormal.
c) Power Source
*”H” Level
: H level out put for TTL level
*GND
: The common circuit ground.
*FRAME GND
: Connect the shield of interface cable to this.