Archived from groups: comp.periphs.printers (
More info?)
"Hecate" <hecate@newsguy.com> wrote in message
news:g4tea1t10a048acgip7fm4vc69q4has912@4ax.com...
> On Tue, 7 Jun 2005 20:24:05 -0700, "Bob Headrick" <bobh@proaxis.com>
> wrote:
>>The test data does not support your suggestion. See Wilhelm's fade tests at
>>http://www.wilhelm-research.com/, specifically
>>http://www.wilhelm-research.com/hp/8750.html for the HP Photosmart 8750 dye
>>based printer with 108 year lightfastness and compare to pigment based inks
>>at
>>http://www.wilhelm-research.com/epson/9800.html.
>>
> Those would be the tests where the product is kept under glass and
> only exposed to a fluorescent light source, wouldn't they?
Actually no. They have both under glass and bare prints tested, as well as
dark storage testing for some products. Read the links for details of test
conditions, as well as a discussion of how one manufacturer inflates their
claims by using a very low level of lighting to support 100 year lightfastness
claim (see
http://www.wilhelm-research.com/fade2black/SMH_Kodak_Tests_2004_11_25.pdf).
Henry Wilhelm is a recognized expert in print longevity, having been in the
business for decades. He has links to a hundred or so articles he has written.
See http://www.wilhelm-research.com/ if you want to learn something.
You and I are not experts in this area, Wilhelm is.
Regards,
Bob Headrick, not speaking for my employer HP