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Archiver > APG > 2003-02 > 1045124291
From: Nancy Upshaw <>
Subject: RE: [APG] Preservation - COPY CAUTION
Date: Thu, 13 Feb 2003 03:18:11 -0500
In-Reply-To: <008701c2d1e1$f251f760$75a85bd1@virpi1>
A way to get copies with better ink is to use either a scanner/printer
combination to make copies, or an all-in-one type scanner/printer, where
the printer uses photo-grade ink. Then you can also spray a 'fixative'
(like artists use) over the page which renders the ink less vulnerable
to environmental degradation.
-Nancy Upshaw
-----Original Message-----
From: Astrid Terras Newstead [mailto:]
Sent: Tuesday, February 11, 2003 10:26 AM
To:
Subject: Re: [APG] Preservation - COPY CAUTION
On Cyndi's List (Preservation & Conservation) they have a link to the
following page at the site of the
National Archives of Australia:
"Archives Advice 37: Photocopies and laser prints" (Issued March 2000):
http://www.naa.gov.au/recordkeeping/rkpubs/advices/advice37.html
If I understood the article correctly, black-and-white copies are
recommended over colour copies, and dry toners might have an edge over
liquid toners.
More specifically, laser printing seems to use a process very similar to
the
most common photocopying process - the xerographic process. In this
process,
dry toners seem to fade less and be more stable than either liquid or
colour
toners, although dry toners sometimes do not adhere to the paper
properly.
However, "time, temperature and pressure appear to be the most important
factors" in determining the physical durability of a (xerographed) copy.
For
this reason, it is important that the copy machines are maintained
regularly
by qualified technicians.
Learning something new every day.
Astrid Terras Newstead
Gravenhurst, (District of Muskoka) Ontario, Canada
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