Oce Arizona 400 Series GT User Manual page 162

How to Create Spot Data with the Spot Layer Tool
This option generates a fill in the selected spot channel where mask data exists. The fill
will be generated anywhere the image data matches the mask color.
Choke and Spread
Choke reduces the outer edge of the underlay. Use choke when you want to eliminate
white from peeking out of the edge of your image. Spread increases the outer edge of the
underlay fill. Use spread when you want a deliberate halo around the edge of your image.
Choke and Spread work in tandem. Each mark on the slider represents 1 pixel width of
choke or spread up to 10 pixels (+-) .The actual preview in Preflight is exaggerated from
what is printed. This exaggerated display makes it easier for you to see the results from
moving the slider. When you use the Spot Layer Tool for masks, we recommend a choke
value of 3 ticks.
Diffuse Edge
Use this option when you want a gradual transition from the underlay to the mask to
create a soft edge for the fill. We do not recommend use of this option.
Filter
Once you've defined your settings, save them by exporting a Filter to use on similar jobs.
Filters are a global color correction that can be applied to Quick Sets to automate the
printing process for multiple jobs that use the same
Sets' on page
Note:
Many of the Quick Set and Filter settings for a job can be overridden in RIP-Queue or
Preflight, if desired.
How to Use the Spot Layer Tool
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This manual assumes that you have some experience with graphics applications and
with ONYX software. If you prefer a self-guided and hands-on tutorial, Customer
Application Bulletin 22, "How to Use the Spot Layer Tool for White Ink Workflow"
provides a simplified method to print with white ink (it does not mentionVarnish,
but the same principles apply). It guides you through a simple tutorial that shows
how to prepare an image for quick and easy white ink print production with spot
data. You will learn how to isolate the white area of your image in Illustrator so that
it will be recognized by the Spot Layer Tool and then printed as white by the printer.
Download Application Bulletin 22 from the Customer Support web site:
http://dgs.oce.com/.
162 Chapter 9 - How to Work With White Ink and Varnish
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