The Spot Layer Tool can be used to set up two spot data planes that define areas where Spot 1 and Spot 2 data are added to a print job. The tool is used with the Arizona printers that both have two extra channels to provide varnish or white ink as well as with CMYK only printers. Both white ink and varnish can be printed using either Spot 1 or Spot 2 data. The same spot data can be used to print either white ink, varnish, or both.
In this section, you’ll learn how to access and set up the Spot Layer Tool. The tool provides a variety of options for generation of spot layers, and you may want to explore them with a sample file of your own to familiarize yourself with the functionality. Remember that any actions you set for this tool will only work successfully when used in conjunction with properly constructed layers. The tool is located in Preflight on the Colour Correction tab.
The Spot Layer Tool provides options for generating spot layers for your image in ONYX Thrive rather than in image editing programs such as Illustrator or Photoshop. The tool has many advanced options and this section will explain them so that you can set them up to best achieve your desired results. The tool options and settings to use it for spot data creation are listed here and are followed by instructions to access the tool.
The Spot Layer Tool Provides These Options:
Generation Options - Set Media
Set media colour is optional and serves two purposes:
If you want to preview the media colour in Preflight, you can set the media colour either from the image or from the colour dialogue menu.
If you have areas in your image that use the media colour and you want that colour to be handled with special consideration. For example; if you want the media colour from the image to show through the design, you must first define your fill options, then set the media colour and define the Media Colour Handling Options as either "Spot Knockout" or "Full Knockout".
NOTE
The generation options are used in combination with the fill options, except when the media colour handling is set to "No Knockout". If you want to use the Spot Layer Tool to create flood fills, underlay fills or mask fills it is not always necessary to set a mask or media colour to get the desired results.
To set the media colour: Click the sample box to activate the colour picker or use the drop down arrow to access the Colour Dialogue menu.
Generation Options - Set Mask
The mask allows you to determine the area that you wish to print with spot data. Setting the mask colour is optional. If the image you are printing contains white or varnish data in more than the mask area, you will need to set up a different background colour not used anywhere else in the file to use as your mask. This must be done in an image-editing program prior to bringing the image into the Spot Layer Tool.
To set the mask colour: Click the sample box to activate the colour picker or use the drop-down arrow to pick the colour from the preview.
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 visualize 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 1360 and 1380 printers have 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 capitalized.
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.
NOTE
Many of the Quick Set and Filter settings for a job can be overridden in RIP-Queue or Preflight, if desired.
|
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 mention varnish, 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 our website: https://graphiplaza.cpp.canon. |