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Streaks in Print (non-gear streaks)

Problem:

Blanket is over-packed causing a bump when striking the plate and jarring the form rollers. This creates a bounce and/or skid producing a streak.

Solution:

Tension blankets to press manufacturer’s specifications.

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Problem:

Streaks appear across the sheet one revolution back from the top of the plate. Ink form rollers are set too heavily to the plate or durometers are too high.

Solution:

Check durometer of rollers and replace if necessary. Set rollers to pressures specified by the press manufacturer.

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