Digital BW, The Print

>>Little white dots appear directly underneath each other in five rows. <<

Are they consistently even and do they occur in the direction of paper
travel through the printer?  If so, perhaps "pizza wheel" marks due to the
ink not drying before the paper moves under the pizza wheels that
handle/guide the paper?

Doug
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Doug's "MF Film Holder" for batch scanning "strips" of 120/220 medium format
film:
http://home.earthlink.net/~dougfisher/holder/mainintro.html