INT 4B - TI Professional PCIBM PC - PARALLEL PORTIBM PC Portable (uses same BIOS as XT) - INITIALIZE PRINTER
	AH = 01h
	DL = printer number (00h)
Return: AH = printer status (see #03216)
Note:	on the TI Pro, the BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. only supports DL=00h; MS-DOS versions for the
	  TI hook INT 4B and handle requests for DL<>00h
SeeAlso: AH=00h,AH=02h,INT 17/AH=01h