INT 2F,6 - PRINT.COM Check for Error on Output Device (Undocumented)

	AL = 06
	AH = 01


	on return:
	AX = error code if CF set
	   = 00 on success
	DS:SI = device driver header if CF set


	- checks the output device for an error condition
	- undocumented, available since DOS 3.3+