Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!killer!ames!mailrus!iuvax!pur-ee!a.cs.uiuc.edu!p.cs.uiuc.edu!gillies
From: gillies@p.cs.uiuc.edu
Newsgroups: comp.sys.mac
Subject: Re: HP DeskJet Drivers?
Message-ID: <76000255@p.cs.uiuc.edu>
Date: 11 Jul 88 02:23:00 GMT
References: <729@esl.UUCP>
Lines: 18
Nf-ID: #R:esl.UUCP:729:p.cs.uiuc.edu:76000255:000:874
Nf-From: p.cs.uiuc.edu!gillies    Jul 10 21:23:00 1988


With a stopwatch you can predict how fast your printer will work.  The
Imagewriter II can dump something like 350 bytes (of 9-pin data) per
second (time a screen print 512*345/8 bytes).  Now, if you read the
24-pin BYTE benchmarks from 2 months ago, you find that very few
printers can approach this output speed.  The one exception is the
Okidata Microline 393, which can dump 2400 bytes (of 24-pin data) per
second.  This works out to slightly more square-inches per second of
printing.

Most other 24-pin printers run at 1/3 to 1/2 of the Okidata's speed.
So most 24-pin pinters are 1/3 to 1/2 as slow as the Imagewriter II,
for printing graphics bitmaps.  Draft mode is better, of course.


Don Gillies, Dept. of Computer Science, University of Illinois
1304 W. Springfield, Urbana, Ill 61801      
ARPA: gillies@cs.uiuc.edu   UUCP: {uunet,ihnp4,harvard}!uiucdcs!gillies