Citizen Systems CBM-231 - Manual (Page 46)

CBM-230/231 User’s Manual
41 CITIZEN
(23) Selecting Character Code Table (ESC t n)
Code : [1B]h + [74]h + n
* {0
≤
n
≤
1} The data is described with the hexadecimal code.
Selecting Page n on the character code table:
•
"n" has the following meanings.
n (Hex) Type
0 IBM character No. 2
(24) Transmitting the printer status (ESC v)
Code : [1B]h + [76]h
Transmits the current printer status.
•
The transmitted status is of 1 byte and its contents are as shown in the table below.
•
In case of DTR/DSR control, only one byte is transmitted after confirming that the host is ready to
receive (DSR signal is in the Space mode). In case of XON/XOFF control, only one byte is transmitted
without confirming the state of the DSR signal.
•
In case of DTR/DSR control, if the host is not ready to receive (DSR signal is in the Mark mode), it
waits to get ready to receive.
Value
Bit Function
0 1
0 Paper near end With Paper Without Paper
1 Undefined
2 Paper end With Paper Without Paper
3 Undefined
4 Unused Fixed to 0 –
5 Undefined
6 Undefined
7 Undefined
[Caution] Serial interface only