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From: dlr@daver.UU.NET (Dave Rand)
Newsgroups: comp.periphs,comp.periphs.printers,comp.sys.apple
Subject: Re: looking for OEM supplier of Laser Printer w/ SCSI interface
Keywords: Laser SCSI
Message-ID: <1990Feb11.211355.21828@daver.UU.NET>
Date: 11 Feb 90 21:13:55 GMT
References: <27290@ppgbms.UUCP> <1990Feb8.213511.23705@zardoz.cpd.com> <27446@ppgbms.UUCP>
Reply-To: dlr@daver.UU.NEt (Dave Rand)
Distribution: na
Organization: Association for the Prevention of Polar Bears and Kangaroos
Lines: 25

In article <27446@ppgbms.UUCP> paul@ppgbms.UUCP (Paul Evan Matz) writes:
>
>The main reason for interest in SCSI is for its speed.  If you want to print
>full page raster images, if you use a centronics interface, you can count on 
>a transfer rate of about 5K bytes/second, or about 3 minutes per page.  (This
>is 8 by 10.5 inches at 300 dpi).  If you try this with a serial connection,
>well, let's not talk about it.

Perhaps another alternative: IMC Data Manager has a new box called 
the DM-XL100E. This has 8 or 16 serial ports (at 115Kbps), two
high speed parallel ports, and an Ethernet iterface. Some time trials
that I ran show it taking data over the Ethernet at a very high speed
(faster than the 10 Mhz AT I was using could transmit it), and sending
to an HP LJII at over 9K bytes per second over the parallel port.
Apparently, this unit does not do any data compression - this was the
real throughput.

While it would only half the 300DPI bitmap time, it would release the
computer much faster (the parallel ports can take data at over 15K/sec
from a regular 10 Mhz AT, and the Ethernet is 'much' faster than this).

The number for IMC is 800-537-5999 or 408-730-1112.
-- 
Dave Rand
{pyramid|hoptoad|sun|vsi1}!daver!dlr	Internet: dlr%daver@uunet.uu.net