Citizen Systems 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   

: 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)

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.