Delta E- drift
Delta E- drift
- Subject: Delta E- drift
- From: "DuWayne" <email@hidden>
- Date: Thu, 19 Sep 2002 13:14:06 -0400
Roberto Michelena........I don't know if thigs have changed a lot lately,
but from my experience with
>
Epson 5000... Grab a pair of these and print the same target on both.
You'll
>
easily get 10-20dE difference........ I've done this on over 10
individual printers, and the differences >between them -in raw state- have
always been quite large.When trying to make linearizations that would
>
allow to use a single profile on all of them, you have to find what's the
>
lowest performer of a group and cut back all the others to match it.
>
Maybe the .4 dE you quote is the same printer printing in two pages, or
in
>
different areas of the page, or something like that.
Its Heilburgs Study of large format printers(9000-10000, Rolands) and the
drift of a single printer day by day over time(not media, ink problems
etc..). Lots of us here have also seen desktops vary 10-20 Delta E from
machine to machine. But as long as a printer says consistent you don't have
to relinearize it every few days. If your printouts start to vary - Its time
for a new profile because its other factors not hardware.
DuWayne Rocus
Omniscience, Inc
South Florida Roland Dealer
(954) 584-2949 (954) 316-4841 Fax
www.rolandmedia.com
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