Kodak DryView 8300 Service Bulletins page 85

Service & Support
Health Imaging
Kodak DryView 8600/8610 LASER IMAGERS
Technical Bulletin
15-09/01 Milky Way Artifacts
Problem
The artifact known as "Milky Way" prints as a line of fine, white specks on the image, normally only
visible with a minimum of 2X magnification.
The size of the specks is about 20 microns and they form a line about 1/16 in. thick. Distance from the
leading edge is about:
• 1 1/8 in. for Kodak DryView 8600 LASER IMAGERS
• 7/8 in. for Kodak DryView 8610 LASER IMAGERS
The artifact is called "Milky Way" because it resembles a cluster of stars in a dark sky. The line of specks
might or might not cover the width of the film. The specks are most visible in low-density image areas but
might also be visible in D-max areas.
The Milky Way artifact is similar to the "White Spot Line" artifact, but is not the same. The spots caused
by the "White Spot Line" artifact are 100-200 microns in size and are visible without any magnification.
Cause
The specks are shadow artifacts of unexposed areas of emulsion caused when debris blocks the laser beam
during imaging. As small particles of debris accumulate on the trailing edge of the film, they are deposited
on the first CAPSTAN PINCH ROLLER when the ROLLER releases the trailing edge of the film. These
particles are then transferred from the CAPSTAN PINCH ROLLER to the next sheet of film (about 1 in.
from the top edge) when it enters the area of the CAPSTAN.
Solution
Install a new CAPSTAN PINCH ROLLER ASSEMBLY 8E2016 that has ROLLERS with smooth surfaces
that do not accumulate debris.
September 2001
Eastman Kodak Company
Health Imaging Products
1 Imation Way
Oakdale, MN 55128
http://www.kodak.com
Printed in the U.S.A.
© Kodak 2001