INT 17h,  01h (1)        Initialize Printer

Sends initialization control codes to the specified parallel printer
and returns the current status of the printer.

On entry:      AH         01h
DX         Parallel printer number (0 = LPT1, 1 = LPT2,
etc.)

Returns:       AH         Printer status (See service 02h)

                                                                          

Notes:         This service sends the hex values 08h and 0Ch to the
printer's control port, thereby initializing the
printer.

See also: INT 17h, 00h
See also: INT 17h, 02h

INT 17h, 01h (1) Initialize Printer