earleh@eleazar.dartmouth.edu (Earle R. Horton) (12/07/88)
I have a Tandy DMP-110 printer, which has both serial and parallel interfaces. I also have a nice Chooser-compatible graphics printer driver which I just got done writing for it. Unfortunately the serial interface runs at 1200 baud, max. I am interested in getting a serial-to-parallel converter so I can run the printer in parallel mode, and the Mac at a more reasonable baud rate, say 9600 or 19200 baud. I have heard of the "Grappler" interface, which has firmware to convert from ImageWriter escape codes to other printers' codes, and also appears to do the serial-to-parallel conversion, but I need something less elaborate. Does anyone know of a simple serial to parallel converter I could use in this application? I need a fast baud rate on the Mac (serial) end, with hardware flow control implemented. I need a Centronics parallel pinout on the printer end, with no translation of output characters, as the Tandy uses all 256 character codes for graphics. I'm sure I could build one, but something small and ready-made would be a lot more attractive. Anybody know who makes/sells such a device? Earle R. Horton. 23 Fletcher Circle, Hanover, NH 03755 (603) 643-4109 Graduate student.