[alt-photo] Re: Pizza wheels again.....

[Don Bryant]

John,

The answer is yes. 

Some brands of inkjet transparency don't work well for negatives,
particularly if colored inks are used (non black ink colors).

Also some ink brands don't even work well with the premium transparency
brands such as Pictorico, though this problem may not be as common as it
used to be.

Pizza wheels used to be a common problem for ink jet papers that did not
allow proper bonding of the ink to the paper receptors. These days I think
it's unusual to have this occur with modern ink jet papers. Sounds like the
R1900 may use an ink formula that doesn't dry well on non Epson emulsions
which also used to be a big problem.

Don Bryant




-----Original Message-----
From: alt-photo-process-list-bounces at lists.altphotolist.org
[mailto:alt-photo-process-list-bounces at lists.altphotolist.org] On Behalf Of
John Brewer
Sent: Thursday, August 11, 2011 4:02 AM
To: The alternative photographic processes mailing list
Subject: [alt-photo] Pizza wheels again.....

Hello everyone

Yes, the age old pizza wheel issue.

Does using certain OHP films reduce the pizza wheel effect such as Pictorico
or Agfa Copyjet? I need to use an Epsom R1900. My 1290 and R2440 don't have
this issue with any OHP film

Thanks

John.
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