Digital BW, The Print

Hi Francis,

I also have vertical banding with my HP 9800. Don't know what causes 
it.  I called the HP rep, and she said it was the paper batch. which I 
don't believe, because the banding showed also with Ilford paper.

Black only is easy. Just add 4-5% of gaussian noise to the image to make 
sure the transitions are smooth and print with the option to use 
black/gray cart with the black cart installed. Some carts I've used 
showed some horizontal banding, and it's not like clogged nozzels, but a 
1 cm wide lighter area across the print few cm's from the rear edge of a 
super-B print. The last black cart I have shows this. The A4 prints are 
great, but can't print bigger prints, because of this banding. But I've 
printed some great super-B prints with other carts, so it is a hit and 
miss to get a good cart to print BO.

Hope this helps,

best
-matti

tim4peace2001 kirjoitti:
>    Hello. I am getting banding when I print with my HP 9800. I am
> printing B&W with the photo grey cartridge. The results are great,
> except for the banding. When I do print color, it also shows banding. It
> does not show banding in every print, but I would say it does on a
> frequent basis. I have tried new cartridges and it still bands. Any
> suggestions? Also, can anyone advise using this printer to print BO? 
> Thank you.
>
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> Francis
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