Citizen Systems CBM-253 - Manual (Page 82)

CBM-253 User’s Manual
70 CITIZEN
ESC v
[Name] Sending of the printer status (only Serial interface)
[Code] <1B>H <76>H
[Function] Sends the status of the printer at the current point of time.
[Items requiring caution]
The status that is sent will be 1 byte of data, and the contents will be as shown in the table
below. When the control is set to DTR/DSR, 1 byte only should be sent after confirming
that the host is in the receiving possible condition (the DSR signal is at 'space'). Further,
when the control is set to XON/XOFF, one byte only should be sent without confirming
the DSR signal condition.
When the control is set to DTR/DSR and the host is in the receiving not possible
condition (the DSR signal is at 'mark'), wait until the DSR signal is in the receiving
possible condition. In the paper end (paper near-end) condition, there may be instances in
which receiving of this command may not be possible due to the BUSY condition.
This command will only be effective in serial interface printers .
Bit Function 0 1
0 Paper near-end Paper present No paper
1 Not defined
2 Paper end Paper present No paper
3 Not defined
4 Not used Fixed at 0
5 Not defined
6 Not defined
7 Not defined