NEC LC890 problems
Frank Gorishek
amdcad!cayman!frank at ames.arc.nasa.gov
Wed Aug 23 00:16:21 AEST 1989
In sun-spots v8i92, joe at islsun5.mse.lehigh.edu (Joe Sieczkowski) writes:
| I was never able to get XON/XOFF to work proberly with my NEC LC 890
| PostScript printer. I'm running Sun version 3.5. It seems like the sun
| never sees the ^S from the printer. My final solution was to set the
| printer at 1200 baud .... ie spoon feed it.
|
...
|
| If I even think about increasing the baud rate to 9600...the printer
| looses output. If anyone out there knows a solution to this I would
| appreciate it.
We had the same type of problem here. As it turns out the LC890 doesn't
drive "true RS232" (i.e., it drive +/- 5volts NOT +/- 12volts). The
serial port on the sun just can't see anything the LC890 sends out. We
replaced the printer, however there are such things as TTL/RS232
converters.
--frank
--
Frank Gorishek
frank at AMD.COM
512-462-4117 or 800-531-5202 x54117
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