Data buffer
Full
Remainder
256 bytes
X-OFF
[Paper out]
When the "paper out" detector senses the end of the paper, the printer outputs X-
OFF signal and stops printing after printing or feeding a maximum of two more
lines on the paper. To reset printer after a "paper out", load paper into the printer
and press the ON LINE switch to set the printer to ON LINE.
[Mechanical error]
Mechanical errors are detected when the motor locks and the unit will not print.
After a mechanical error occurs, the printer outputs X-OFF signal and then sets
the printer OFF LINE. To cancel a mechanical error, turn the power off and
remove the cause of the error, then turn the power on again to reset the printer.
[Status]
b7
[Framing error]
A framing error occurs when SPACE is detected at the stop bit. When a framing
error or a vertical parity error occurs for the data which is received, the printer
prints out a "?" mark to indicate that the error occurred.
[Compulsion switch]
When pin 6 of the peripheral unit drive circuit connector is set at "HIGH", status
bit 7 becomes "1".
Near Full
b6
b5
b4
b3
0
Constantly
set at "0"
Near Empty
b2
b1
b0
– 95 –
Empty
256 bytes
X-ON
Vertical parity error
1: error
Framing error
1: error
Mechanical error
1: error
Paper empty
1: empty
Buffer empty
1: empty
Buffer overflow
1: overflow
Compulsion switch
High level
(Switch is set to ON)