Negated TIFF's

I'm processing TIFF's from Hylafax through ImageMagick

 

emrfax2:/Archive/Live/bin # convert --version

Version: ImageMagick 6.3.3 03/23/07 Q16 http://www.imagemagick.org


Copyright: Copyright (C) 1999-2007 ImageMagick Studio LLC

 

However, the TIFF"s that are coming out the other side
are negated (black is
white and white is black).

You can find the input image at 

ht
tp://www.pikevillehospital.org/ssimages/fax.tiff

 

If I run "convert fax.tiff +adjoin page.tiff" I
get two pages, as I'd
expect:

http://www.pikevillehospital.org/ssimages/page-0.tiff

http://www.pikevillehospital.org/ssimages/page-1.tiff

 

Does anyone know why this is happening, and what I can do to
prevent it?

 

I also apologize if this has already been covered. I googled
it, but
everything I saw seemed to indicate that there was a problem
like this in
the 6.2 code-line, but that it was fixed.

Thanks for your time,

 

Scott Spearman

 

Programmer Analyst - Pikeville Medical Center

Scott.Spearmanpikevillehospital.org

(606) 218-4660

 

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