[alt-photo] Re: Sky banding - 3800 Printer

[Amy Holmes George]

Hi Marek,
Agreed, I wish I could figure this one out. I did just print an image of my negative on photo glossy paper instead of transparency film, but there is still no visible indication of that strange banding. I'm baffled. I've already done all the diagnostic tests through the printer driver, indicating no problems with the heads or nozzles. So, I decided to make a print of the same image using a negative that I had output on someone else's 3800—it looks perfect. I am about to print another negative on a new batch of Pictorico to see if it could be the film . . . ?
By the way, where would I adjust the uni/bi-directional setting on a 3800?
Thank you,Amy

> From: marekmatusz at hotmail.com
> To: alt-photo-process-list at lists.altphotolist.org
> Date: Sun, 21 Feb 2010 18:15:15 +0000
> Subject: [alt-photo] Re: Sky banding - 3800 Printer
> 
> 
> Amy
> 
> This is a tough problem and I agree with others that these are not mechanical roller marks. A couple suggestions here. You should be able to print a test print on a photo glossy paper and see the banding. Regular paper is not as good as it  doeas not show smooth transitions well. That would help with troubleshooting.  Are you sure that one or more nozzles are not firing?  It almost seems that this happens as the head moves in one direction, but not in the other. Are you using bi-directional printing?
> Epson 3800 has enough density to print one or two inks. Can you try another ink combination? Just yellow and black has plenty of density.
> 
> Finally to eliminate bad substrate print the picture with paper in the other direction.
> 
> SOrry, nothing easy here.
> 
> Marek 
> > From: ender100 at aol.com
> > To: alt-photo-process-list at lists.altphotolist.org
> > Date: Sun, 21 Feb 2010 11:32:37 -0600
> > Subject: [alt-photo] Re: Sky banding - 3800 Printer
> > 
> > Amy,
> > After looking at your print, this isn't roller marks. They are more 
> > evenly spaced, narrower and closer together. This is Venetian blind 
> > effect. I agree with Don's comments.
> > 
> > Mark Nelson
> > www.PrecisionDigitalNegatives.com
> > PDNPRint Forum @ Yahoo Groups
> > www.MarkINelsonPhoto.com
> > 
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