IBM Proprinter Emulation
Control Codes and Escape Sequences
Grouped by Function
Communications
Cancel Line | CAN |
Cancels all printable text in the current print line. Does not affect any control codes or escape sequences.
Control code: | CAN |
Hexadecimal: | 18 |
End of Text | ETX |
If “ETX/ACK” is set to “On” in the interface setup menu, then receipt of an ETX causes the printer to transmit an ACK to the host computer.
Since the ETX may be a legal value within an escape sequence, it is the user's responsibility to ensure that an ETX used for data handshake is not sent within an escape sequence. The user must also ensure that the maximum block size or the number of blocks sent at one time does not exceed the input buffer size of the printer.
ETX/ACK handshake is available only with serial I/O.
If character set 2 is selected, ETX will be treated as a printable character instead of an I/O handshake control code.
Control code: | ETX |
Hexadecimal: | 03 |
Deselect Printer | ESC Q n |
Deselects the printer. Use of this command is discouraged, because the printer will remain offline until an operator presses the ONLINE button on the control panel.
For a Proprinter II or Proprinter III, n should be 3. For a Proprinter XL or Proprinter III XL, n should be 22. It does not really matter, because n will be ignored.
Example: The following escape sequence will force the printer offline.
Escape Sequence: | ESC | Q | 22 |
Hexadecimal: | 1B | 51 | 16 |
46
