Prinergy Troubleshooting - DCS images containing CMYK 0,0,0,0 create "scum dot" on final output, when scaled.

DCS images containing CMYK 0,0,0,0 create "scum dot" on final output, when scaled.


Product		Prinergy Connect 2.1 Level 21; Prinergy Direct 2.1 Level 21; Prinergy Access 2.1 Level 21; Prinergy Powerpack 2.1 Level 21; 2.2.1.3
Platform
Operating system

Error

Symptoms		Your DCS images containing CMYK 0,0,0,0 areas are scaled between 40 and 50%. When you create the final output, very small dots of CMYK show up in areas that should have no CMYK. This can be in the form of dotted lines or an overall screen.

Cause		This problem is caused by Adobe Downsampler, which is invoked by PostScript input into the Normalizer.

Solution		In your Refine Process Plan, under Optimize, uncheck Resample of Images. Your images will not be downsampled, and final output will not contain scum dot. Permanent fix:

See also

Keywords		file formats, plate, Platesetter, Plateworks, proofing, refiner, screening

Technical contact(s)		AJ Leitch
Submitted by		Stephen Zmetana
Date submitted		24 Nov 2003