Digital BW, The Print

Do you print with uni- or bi-directional mode? I had once this kind
of issue in uni-directional mode, and it was solved in the
bi-directional mode. 

my2c 

Sylvain. 

Le 2013-03-07 03:33, remononaz1
a écrit : 

> I have a print I am making that has a very empty sky with
about a 50% gray tone that fades darker to lighter. When I print this I
get vertical streaking in the area at the top of the print and
continuing down about 2". The streaking is not fine like a clogged
nozzle, it is a very light banding that fades in and out gradually with
a peak to peak width of about 3/4". It is not highly noticeable, but
there if you are looking for it. 
> 
> The lower part of the image is
busy, so I flipped the image 180% in photoshop and printed it again
thinking that if it is a printer issue on the left side of the printer
it might disappear. In the flipped image, the streaking is much lighter,
but still there. I cannot see this issue anywhere else in the image
other than in the top of the sky where the tone is very even. 
> 
> I
also think this defect fades as the print dries, but copy that is a
month old still has some of the streaking, so it does not completely go
away. 
> 
> Any ideas what causes this?
 

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