Path: utzoo!attcan!uunet!seismo!sundc!pitstop!sun!amdcad!ames!pasteur!agate!ucbvax!hplabs!hp-pcd!hpcvlx!bturner
From: bturner@hpcvlx.HP.COM (Bill Turner)
Newsgroups: comp.text
Subject: Re: Laserjet Questions
Message-ID: <101870002@hpcvlx.HP.COM>
Date: 12 Sep 88 17:28:22 GMT
References: <405@ucrmath.UUCP>
Organization: Hewlett-Packard Co., Corvallis, OR, USA
Lines: 20

> Do I?
> 
> 	A) Build a 300 DPI (1M Ram) image in AT memory 
> 	   Transfer it to the laserjet
> 
> or 	B) Build the image into the laserjet memory?  How do I do this?

Even better, depending on how "full" the line is, you don't have to send the
full line.

If there is white space bounding the line, you can send curson positioning
data, then send just the bits you need.  If there are lots of gaps (white)
in the middle of the line, it might even save data transfer to break the
line into parts and send the parts.

That means your raster builder would have to be a bit more sophisticated 
than just building the full-page (or stipwise full-page) image, but it 
can cut down substantially on data to transfer.

--Bill Turner