Panasonic KX-P2130 Operating Instructions Manual page 65

Interfacing
Connector pin signals
STB ... STROBE
eThis is a synchronizing input signal to read data into the printer.
eThis signal is normally high. Data is read in when it is low.
DATA 1-DATA 8
e These are the input signals which carry the 8 data bits of information.
eThe signal is read in synchronization with the STROBE pulse. A high level indicates a logical "1 ".
ACK ... ACKNOWLEDGE
eThis is an output signal to the computer indicating that the printer is ready to receive the next data. When
the condition becomes true, the signal goes low.
eThe ACK signal is automatically sent whenever the printer is switched ON LINE and the BUSY signal
drops from high to low.
BUSY
eThis output signal indicates the status of the printer cannot receive data.
eThe signal is high under the following conditions:
1. receive buffer full
2. printer is processing data
3. printer is OFF LINE
4. printer is in an error condition
PO ... PAPER OUT
eThis output signal indicates the absence of paper and goes high during a "Paper Out" condition.
SLCT...SELECT
eThis output signal is high in the ON LINE state and low when OFF LINE.
eThe printer enters the ON LINE state:
1. when the printer is turned on
2. when PRIME is received
3. when the RESET command is received
4. when the ON LINE switch is pressed
eThe printer enters the OFF LINE state:
1. when the printer is out of paper
2. when the printer is switched OFF LINE
AUTO FEED XT (AFXT)
eWhile this input signal is low, one line feed (LF) command will be added to each carriage return (CR).
eAuto LF setting in the Function mode can alter the response by the printer to an AFXT signal. If auto LF is
ON, the printer will perform a CR+ LF regardless of the level of the AFXT signal. When auto LF is OFF,
this automatic action is disabled.
65