Canon Arizona 6100 XTHF Mark II Series User Manual

Create Spot Data in PhotoshopIntroductionThis section explains how to prepare images that include spot data with raster-based imageediting applications such as Adobe Photoshop. In order to print with white ink, you must have anONYX profile (media model) properly configured for the use of spot data. To add spot color datato your image in Photoshop, you need to create a layer within the image as a new spot channel. Itis possible to have more than one spot element in an image, but each element must be on thesame spot channel, and therefore have the same opacity level, or else ONYX Thrive will treat thesaved document as a separation file. Since the Arizona printers with white ink support two spotchannels, you can create one spot channel for Spot 1 data and another for Spot 2 data. CMYK isthe preferred image mode as the actions required for spot data creation are simpler than thosefor RGB.NOTEYou can use raster-based image editing applications other than Photoshop as long as it has theability to create spot channels.PurposeWhen you have a raster-based image and need to have select areas of that image show up aswhite when the media is non-white or clear or translucent, you can prepare a spot channel for thewhite data in Photoshop.When to doThe first step in the white ink workflow is to prepare your source image to use a spot ink channel.The spot data must be designed entirely on a separate spot channel to be recognized by theONYX RIP. The name you assign to this spot channel layer must be Spot 1 or Spot 2 and is themost important part of preparing the file. This named channel allows RIP-Queue to determinethat the data in the source image needs to be output to the spot channel. In preparing your file,only you can define what you want to print with "white ink" as part of your design and assign thecolor as described in this document. Using your graphic application program, the spot data canbe simple or complex and can range from vector shapes and text to halftone bitmap images.Use the following steps to create a new spot channel layer:Procedure1. Open the desired file in Photoshop (if the file is in RGB mode, then convert it to CMYK mode).NOTEThe image file used in this example is for illustration purposes only. For best resultswhen working with text, we recommend that you use a vector-based program such asAdobe Illustrator.2. Ensure that the Channels tab is visible (under the Window menu click Channels to view thepanel).3. Select the area of the image you wish to print with white ink.Create Spot Data in Photoshop128 Chapter 7 - How to Manage a White Ink Workflow