Int 4B Fn 02 - Ti Professional Pc - Parallel Port - Get Printer Status [b]
AH = 02h
DL = printer number (00h)
Return: AH = printer status (see #2887)
Note: on the TI Pro, the BIOS only supports DL=00h; MS-DOS versions for the
TI hook INT 4B and handle requests for DL<>00h
See Also: AH=00h,AH=01h,INT 17/AH=02h