Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!ucbvax!SDD.HP.COM!tony
From: tony@SDD.HP.COM (Tony Parkhurst)
Newsgroups: comp.laser-printers
Subject: Re: speeding up a HP IIP
Message-ID: <9104231655.AA11025@crayola.cs.UMD.EDU>
Date: 19 Apr 91 23:18:12 GMT
References: <9104191550.AA03519@crayola.cs.UMD.EDU>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: Hewlett-Packard, San Diego Division
Lines: 23
Approved: laser-lovers@brillig.umd.edu

In article <9104191550.AA03519@crayola.cs.UMD.EDU>, rick@tripos.COM (Rick Moll) writes:
|> I have recently acquired a HP IIP laser printer.  I have been very happy 
|> with it, except for it's speed at printing graphics.  I have been using 
|> it in it's native PCL language; which I had hoped would give decent 
|> graphics performance.  It has however been very slow.


Probably the best way to speed up graphics is to compress the graphics
data using PCL compression methods.  This reduces the heavy I/O load.

If you cannot re-write the graphics driver to do compression, then
the next best thing is to use a filter which reads PCL uncompressed,
and outputs PCL compressed.

I just happen to have done this already.  The speedup for graphics printing
is amazing.  If there is enough interest, I may post this program to the net.

-- Tony

--
		Tony Parkhurst	( tony@sdd.HP.COM )

"free people need no drug laws" -- James A. Parker