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CHAP. 4
TECHN…
completely full). Output of the X-ON signal is resumed when the data in the
buffer is printed out and drops to below 256 bytes.
Status
Bit position Definition Level
b0 Vertical parity error 1:error
b1 Framing error 1:error
b2 Mechanical error 1:error
b3 Paper empty 1:empty
b4 Constantly set at “0” 0
b5 Buffer empty 1:empty
b6 Buffer overflow 1:overflow
b7
Cash drawer open detection
switch high level
switch is set to ON
Paper out
When the “paper out” detector senses the end of the paper, the printer
stops printing after printing a maximum of two more lines or on feeding the
paper. The printer will set the DTR to “MARK” and set the printer to OFF LINE
five seconds after a “paper out” condition is detected. To reset the printer after a
“paper out”, load a new roll of paper into the printer and press the ON LINE
switch to set the printer ON LINE.
Mechanical error
Mechanical error occurs when the motor locks or else and printing stops.
After the error occurs, the printer outputs an X-OFF signal and stops printing.
The printer sets the DTR signal to “MARK” and sets to “OFF LINE” five
seconds after a mechanical error occurs. To reset the printer after a mechanical
error occurs, close the top cover properly and press the “ON LINE” switch. If a
buzzer sounds and the “ALARM” LED flashes at this point, locate the cause of
the error and turn the power off and then back on to reset the printer.