Path: utzoo!attcan!uunet!nih-csl!lhc!ncifcrf!haven!aplcen!uakari.primate.wisc.edu!zaphod.mps.ohio-state.edu!mips!daver!dlr
From: dlr@daver.bungi.com (Dave Rand)
Newsgroups: comp.periphs.printers
Subject: Re: looking for hp lj II ethernet cards
Keywords: ethernet laserjet
Message-ID: <1990Oct21.083458.11418@daver.bungi.com>
Date: 21 Oct 90 08:34:58 GMT
References: <1990Oct12.044423.1802@wsrcc.uucp> <1990Oct15.231812.564@zardoz.cpd.com>
Organization: Association for the Prevention of Polar Bears and Kangaroos
Lines: 29

In article <1990Oct15.231812.564@zardoz.cpd.com> neil@uninet.cpd.com (Neil Gorsuch) writes:
>In article <1990Oct12.044423.1802@wsrcc.uucp> wolfgang@wsrcc.uucp (Wolfgang S. Rupprecht) writes:
>>The problem is that downloading a one page bitmap (eg. ghostscript
>>output) involves moving a megabyte of data.  This comes out to over 9
>>minutes for the download alone at 19.2 baud.  This is a bit too long
>>for my tastes and tends to slow the 8ppm printing down a bit.  ;-)
>>No - using the LJ Centronics port isn't really an option for me.  I am
>>running on an Sparc SLC which only has serial, SCSI and ethernet
>>connections.
>
>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.

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

-- 
Dave Rand
{pyramid|mips|bct|vsi1}!daver!dlr	Internet: dlr@daver.bungi.com