Path: utzoo!attcan!uunet!wuarchive!sdd.hp.com!elroy.jpl.nasa.gov!zardoz.cpd.com!neil
From: neil@uninet.cpd.com (Neil Gorsuch)
Newsgroups: comp.periphs.printers
Subject: Re: looking for hp lj II ethernet cards
Keywords: ethernet laserjet
Message-ID: <1990Oct24.215224.19325@zardoz.cpd.com>
Date: 24 Oct 90 21:52:24 GMT
References: <1990Oct12.044423.1802@wsrcc.uucp> <1990Oct15.231812.564@zardoz.cpd.com> <1990Oct21.083458.11418@daver.bungi.com>
Sender: neil@uninet.cpd.com
Organization: Uninet Peripherals, Santa Ana, CA, USA
Lines: 30

In article <1990Oct21.083458.11418@daver.bungi.com> dlr@daver.bungi.com (Dave Rand) writes:
>In article <1990Oct15.231812.564@zardoz.cpd.com> neil@uninet.cpd.com (Neil Gorsuch) writes:
>>We have a SCSI based Centronics port that works fine on SLC's.  The
>>current model outputs at up to 30,000 characters per second, which
>>pushes the download time to around 30 seconds.
>
>The HP laser jet II and III both top out at about 12.5-14 Kbytes per second.
>This would be for transmitting bit map images - downloading bitmap fonts
>can be a bit slower due to the additional processing needed on the HP side.
>Are you perhaps talking about the input data rate (from the SCSI)? If so,
>it may be reasonable. But I don't think that you can do 30K/sec to the
>HP LJII or III. Please document this (or show a real-life example) if
>possible.

The SCSI data rate ranges up to 1 or 2 Mbytes per second, depending on
the particular workstation.  The 30K characters per second is what our
gadget can do, but it is of course limited to what the Centronics
device can handle.  I have never tested an HP LJII or III, so if you
have seen 12.5-14 Kbytes per second with other interfaces that were
limited by the HP's bandwidth, that's what you will probably see with
ours too.  But I guess that's better than 19.2 K baud 8-).

>At least you are down from 250K/sec (in one of your earlier postings :-)!

That's a different model, the standard model is 30K/sec.
--
Neil Gorsuch        INTERNET: neil@cpd.com          UUCP: uunet!zardoz!neil
MAIL: 1209 E. Warner, Santa Ana, CA, USA, 92705     PHONE: +1 714 546 1100
Uninet, a division of Custom Product Design, Inc.   FAX: +1 714 546 3726
AKA: root, security-request, uuasc-request, postmaster, usenet, news