[alt-photo] Re: Vertical Banding in Prints Produced from Digital Negatives

[Paul Viapiano]

Mark, are you thinking the pizza roller marks?

Amy, can you send a link to the photo? The attachments don't seem to work 
here...

Paul


----- Original Message ----- 
From: "ender100" <ender100 at aol.com>
To: "The alternative photographic processes mailing list" 
<alt-photo-process-list at lists.altphotolist.org>
Sent: Saturday, February 20, 2010 3:01 PM
Subject: [alt-photo] Re: Vertical Banding in Prints Produced from Digital 
Negatives


Hi Amy,

Most likely if they are of even width and evenly set apart it is the rollers 
making a mark on the negative. They might need to be cleaned or you may need 
to increase the drying time between head passes. Others may have more 
suggestions.
--
Best Wishes,

Mark Nelson
Precision Digital Negatives
PDNPrint Forum @ Yahoo Groups

Mark Nelson Photography


On Feb 20, 2010, at 4:58:12 PM, "Amy Holmes George" <amyhgeorge at hotmail.com> 
wrote:


Hello all,
I would gladly welcome any suggestions you may have regarding a recurring 
issue. I am printing digital negatives on Pictorico transparency film (Ultra 
Premium) with an Epson 3800 for use with pt/pd on COT 320 (and exposing in a 
Nuarc). For some reason, I am seeing a predictable pattern of vertical bands 
visible only in flat areas of high value such as the sky (please refer to 
attached jpg). This banding is not visible in the negativeven under 
magnification, and it is not specific to any one image. To me, the only 
logical explanation is my printer. So, I have performed a nozzle check, head 
cleaning and head alignment, but all the test results indicate no problems. 
I have even wiped down the interior according to the Epson printer manual 
instructions, and still the problem persists. What could cause this banding? 
I am out of ideas and feeling rather frustrated . . . help!?
Thank you,Amy
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