CITIZEN CBM-270 User Manual
Page 35
CBM-270 User’s Manual
CITIZEN
35
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(1) Input signals to the printer
·DATA
: 8-bit parallel signal (Positive logic)
·STROBE
: Strobe signal to read the 8-bit data (Negative logic)
·RESET
: Signal to reset the entire printer (Negative logic); 1 ms or more
(2) Output signals from the printer
·ACK
: 8-bit data request signal. A pulse signal to be output at the end of the
BUSY signal (Negative logic)
·BUSY
: Signal to indicate that the printer is busy. Input new data when it is "Low."
(Positive logic)
·FAULT
: Turned to "Low" when the printer has an alarm. At this time, all the control
circuits in the printer stop. (Negative logic)
·PE
: Output if the printing paper has run out or is running out. (Positive logic)
(3) Power source and the related
·+5 V DC
: 5 V output pulled up by a 10kW resistor
·GND
: Common ground for the circuits