Date: Sat, 20 Sep 2003 11:12:41 -0700 (PDT) From: Don Lewis <truckman@FreeBSD.org> To: kirk@strauser.com Cc: freebsd-stable@FreeBSD.org Subject: Re: HP Laserjet 1200 on USB Message-ID: <200309201812.h8KICfN1004127@gw.catspoiler.org> In-Reply-To: <8765jnmrg1.fsf@strauser.com>
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On 20 Sep, Kirk Strauser wrote: > At 2003-09-20T14:51:19Z, ian j hart <ianjhart@ntlworld.com> writes: >> What's your data? One 20Mb graphic is different to a 20Mb "text" document. > > 20MB graphics. Here's what I was doing that really brought this to light: > > 1) Created a 30" x 24" 300DPI canvas in The GIMP. > 2) Generated some really large text. > 3) Used the "Resize canvas" to slice the image into 8" x 10" pages and > printed them individually. > > The page files were the 20MB files that I was referring to. Although they > were graphic, I think they were basically bitmaps that wouldn't require too > much computation. Are the Postscript files being sent to the printer still 300 DPI after all the manipulation? When I use xsane in "Copy" mode, the resulting Postscript files end up with an odd resolution which is painfully slow to print on my Ethernet-connected HP LaserJet 4000 which has to resample the bitmap to convert it to device resolution. It might also speed things up if you can convert the data to monochrome from either grayscale or RGB. I didn't see any obvious ways to do this when printing from GIMP, but you could save the file in some format compatible with netpbm, and use that to do the conversion. At that point converting the data to HP LaserJet format before printing becomes a possibility, which is likely to be a faster way to print bitmap data than printing PostScript. This doesn't solve you USB problem, though.
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