[lug] Serial printer connection questions

John Hernandez John.Hernandez at noaa.gov
Tue Sep 17 09:00:36 MDT 2002

Hash: SHA1

Chip, are you sure it has enough memory to handle the larger postscript
files?  Also, many older printers only grok Postscript level 1.

Chip Atkinson wrote:
| Yep.  It's an old printer, NEC Silentwriter2-90.  It worked really well on
| the old dead mac.
| On Mon, 16 Sep 2002, Mr Viggy wrote:
|>It sounds to me like that is exactly Chip's problem, the data is going
|>in too fast!
|>The only experience I've ever had with a serial printer was an old HP
|>Thinkjet on Windows 3.1.  It just "worked", i.e., other than setting up
|>the baud rate etc, it worked fine.
|>Ed Hill wrote:
|>>On Mon, 2002-09-16 at 19:19, Chip Atkinson wrote:
|>>>Does anyone have any experience with setting up serial printers?  I
have a
|>>>postscript printer that seems to get overrun with data when using the
|>>>parallel interface so I thought I'd try the rs-232 interface instead.
|>>Hi Chip,
|>>I can't imagine that an RS-232 serial interface will be any faster than
|>>the parallel port.  According to http://www.usb.org/faq/ans2.html, the
|>>approximate max speeds are:
|>>  serial port: 115kbits/s (.115Mbits/s)
|>>  standard parallel port: 115kBYTES/s (.115MBYTES/s)
|>>  Original USB: 12Mbits/s (1.5MBYTES/s)
|>>so the parallel port should be about 8X faster than RS-232 and USB
|>>should be about 10X faster than parallel.  Could you switch to USB?
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