Esc{vr?} — version, Query format, Reply format – Intermec PK80 User Manual
Page 61: Reply example

Commands
Appendix
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PK80 Series 80-Column Printer User’s Manual
ESC{VR?} — Version
This reports the firmware, boot code, and download file number.
Query Format
ESC{VR?}
Reply Format
{VR!F:x;B:x;D:x}
Reply Example
{VR!F:4.09;B:2.05;D:1.0}
S VR!
This is a reply to a VERSION query.
S F:4:09; The firmware (main program) version is 4.09.
S B:2.05; The boot code version is 2.05.
S D:1.0;
The download file version is 1.0.
Query Reply
Definition of Reply
F
n.nn
Firmware version is n.nn
B
n.nn
Boot code version is n.nn
D
n.n
Download (fonts, graphics, formats) version is n.n