Canon Arizona 135 GT Operation Manual page 128

Create Spot Data with the Spot Layer Tool
Generation Options - Media Colour Handling
If you have set a media colour, you have three options for how you would like the media colour
to be handled. The term "Knockout" means to remove from the selection. If you've set a media
colour, chances are you want some portion of the design to be removed to use the media colour.
These are the option you have to choose from:
• No Knockout - If you've set a media colour to help you visualise your output, choose this
option. This will print the image and spot data with no knockout.
• Spot Knockout - If you choose this option, RIP-Queue removes the spot data anywhere the
image data matches the media colour that you set. Use this option when you want to knockout
the spot data but still print the image data that matches the media colour.
• Full Knockout - If you choose this option, RIP-Queue removes the spot data and the image data
anywhere the image data matches the media colour that you set. Use this option when you
want to knockout the spot data and the image data, allowing the media to fully show through.
Spot Channel
The Arizona 135 GT has two spot channels available. The names that appears here should be the
ones you used to create the media in Media Manager. The recommended spot channel names
are: "Spot 1" and "Spot 2".
NOTE
ONYX software treats Spot 1 and Spot1 as equivalent. The space between "t" and "1" is not
important but the case is, so the "S" must always be capitalised.
Flood Fill
This option generates a flood fill for the entire image by combining the underlay and mask fills
together. When you check this option, the underlay and mask fill sliders lock together and are set
at 100%. You can change the opacity for the flood fill by moving either of the sliders.
Underlay Fill Opacity
This option generates a fill in the selected spot channel where image data exists. The fill will be
generated anywhere image data does not match the mask.
Mask Fill Opacity
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 colour.
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 colour correction that can be applied to Quick Sets to automate the printing process
for multiple jobs that use the same settings.
128 Chapter 7 - Manage a White Ink Workflow