INT 0F - IRQ7 - PARALLEL PRINTER

Desc:	this interrupt is generated by the LPT1 printer adapter when the
	  printer becomes ready
Notes:	most printer adapters do not reliably generate this interrupt
	the 8259 interrupt controller generates an interrupt corresponding to
	  IRQ7 when an error condition occurs
SeeAlso: INT 0D"IRQ5",INT 57"DESQview",INT 5F"DoubleDOS",INT 7F"GO32"
SeeAlso: MEM 0040h:006Bh