Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!wuarchive!ukma!cwjcc!hal!ncoast!allbery
From: allbery@NCoast.ORG (Brandon S. Allbery)
Newsgroups: comp.sys.mac
Subject: Re: LaserJet IIP Caveat
Message-ID: <1989Sep26.235509.11676@NCoast.ORG>
Date: 26 Sep 89 23:55:09 GMT
References: <1989Sep26.000014.24359@NCoast.ORG> <897@cbnewsj.ATT.COM> <4372@internal.Apple.COM>
Reply-To: allbery@ncoast.ORG (Brandon S. Allbery)
Followup-To: comp.sys.mac
Distribution: comp.sys.mac
Organization: North Coast Public Access UN*X, Cleveland, OH
Lines: 31

As quoted from <4372@internal.Apple.COM> by lsr@Apple.COM (Larry Rosenstein):
+---------------
| In article <897@cbnewsj.ATT.COM> mec@cbnewsj.ATT.COM (michael.e.connick) 
| writes:
| > goes without saying that with most laser printers you do NOT have to
| > compose an entire page in the printer's memory before you're able to
| > print out anything. I don't even think this is necessary with a
| > Postscript printer, although I may be wrong about that case.
| 
| I think the important point for a laser printer is once the paper starts 
| going it can't be stopped.  (That's what Brandon meant by being a page 
| printer.)  Once the paper starts, you have to feed the image to the 
| printer on time, otherwise you would get gaps.
| 
| One easy way to do this is to build the page image in memory; then you are 
| assured that the image is available when needed.  But you can also create 
| the image in bands, provided the next band is available when needed.
+---------------

How do you convince the LaserJet to start printing before the entire page is
in memory (that is, without sending it a formfeed command)?  I'm not needling;
I can think of a few programs I've used on other systems which could benefit
greatly if I could teach them this trick... and I've not seen anything in the
LJ-II technical reference saying that this could be done, or how.

++Brandon
-- 
Brandon S. Allbery, moderator of comp.sources.misc	     allbery@NCoast.ORG
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