Path: utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!rutgers!cmcl2!rocky8!cucard!ccnysci!alexis
From: alexis@ccnysci.UUCP (Alexis Rosen)
Newsgroups: comp.sys.mac
Subject: Laser printer summary- some corrections.
Message-ID: <995@ccnysci.UUCP>
Date: 16 Nov 88 08:12:43 GMT
Reply-To: alexis@ccnysci.UUCP (Alexis Rosen)
Lines: 32


In the recent summary of laser printer information, one response caught my eye:
>From: optilink!cramer@kontron (Clayton Cramer)
> 
>I have experience with the Apple LaserWriter IIntx, and it seems to work
>quite well.  The print isn't quite as dark as it was on the original
>LaserWriter Plus, but it does OK.  Keep in mind that if you will printing
>any significant amount of graphics that cover a lot of area, the write
>white engine of the LaserWriter IIntx won't do a great job -- the blacks
>won't be black.  Some of the other PostScript printers out there have
>write black engines, and do a much better job for this sort of thing --
>the AST TurboLaser/PS for example -- but a good many of the ASTs have
>a problem with "bearding" characters, perhaps because of an adjustment
>problem.

This is really ridiculous. For starters, the NTX uses the Canon SX engine,
which (like the previous Canon CX engine) is a write-black engine. Worse,
there is an assumption here that write-white engines produce bad blacks,
when in fact they will generally produce much _better_ blacks than W-B
engines. Thus the AST printer (which has the same engine that the NTX uses)
does NOT produce better blacks. There are some W-W engines out there, and
they do produce the best blacks. I think that Ricoh engines are W-W (but
don't quote me). At any rate, the new SX engine generally produces much
better blacks than the old CX engine, to the point where it is usually
acceptable even for large black areas. So basically, believe the opposite
of everything in that note, and you'll be fine.

----
Alexis Rosen                       alexis@dasys1.UUCP  or  alexis@ccnysci.UUCP
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