There might not be anything worth trying, simply because the RS-232 is
capable of delivering data faster than some printers can actually put it on
paper. As a guess, I would say you need a very high speed tractor feed
impact printer or an 8 page per minute laserjet to significantly outperform
the rs-232. Keep in mind that most of these printers have cache ram in them
as well as the spooler in windows. Unless you see the printer actually
stuttering, an indication it has emptied its cache ram faster than the
rs-232 can fill it, I would leave well enough alone.
For laughs, why don't you try going into your printer folder, right click on
the printer icon, choose properties, detail, click spooler settings, and
change it to 'start printing after LAST page has spooled'. If this helps,
then the trouble may be in your retailing system. IF it doesn't, and the
performance is well below your old epson (which I assume this rs-232 printer
replaced) than the printer or printer driver is just slow.
For the sake of a complete explanation, you can really tax an rs-232 by
sending the printer a big graphics job, this occurs because in most cases
the printer won't do anything until it has composed the entire page, and
that can be a lot of megabytes through the rs-232 and into the printer's
cache. I just assumed a retailing application doesn't do that.
Tom Turak
-----Original Message-----
From: Frederick M. Navarro [mailto:[log in to unmask]]
Sent: Tuesday, August 20, 2002 8:28 PM
Hello everyone here, I would like to ask a few questions, we have a
retailing system which we used EPSON printers originally, but we tried
another printer, and it is connected via RS232. The retailing machine runs
under Win98 SE with 128 MB RAM. The problem I have is with its printing
speed, and I've asked the supplier of the RS232-printer and they said that
connections via RS232 are always faster than the LPT connection. I've read
their manual but the most I could manipulate is the baud rate by using the
MODE command. Has anybody experienced this problem? Any steps how to
speed up the printing speed via RS232? Thanks a lot.
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