Printcap for serial port A printers

Wolfgang Wetz mcvax!cgch!wwtz at uunet.uu.net
Thu Mar 2 06:43:54 AEST 1989


carrigan at ardec-3.arpa (PBMA) writes:
>I have a Sun 3/160M server and ALPS P2000G and Epson LQ-1500 line
>printers.  When I hook either of these 2 printers up to the Sun via the
>serial port A, I get good printout for a page or so, than it becomes
>garbled. Thus, I know that there is some type of handshaking problem but I
>don't know what it is.  Does anyone have a printcap that works with either
>of the lineprinters above that works??...

Unfortunately you did not mention the level of operating system you are
running.

If you have SunOS 4.0 or even 4.0.1 there is a problem known by Sun.  The
effect was, that the output was trincated midway through printout.  Try to
get the serial line driver patch from their hotline if you can get around
it with:

  Work around:
  If the port is held open for an indefinite amount of time, (such as
  "(cat foo > /dev/ttya; sleep 999999)" or cp /dev/ttya /dev/null)
  the file will be written correctly.

best regards
Wolfgang Wetz, Systems Administrator, Scientific Computing Centre
   c/o CIBA-GEIGY AG, R-1045.330, CH-4002 Basel, Switzerland
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