reyn@trsvax.UUCP (05/19/89)
This is pure conjecture on my part, but the DMP2100, DMP430, and DMP 440 all switch between IBM and Tandy mode if they receive the sequence ESC+! If the printer drivers for the newer versions of Windows send this sequence, your printer will toggle from the correct IBM mode to the rather non-standard Tandy mode. Just a thought.