Adobe Photoshop/Color Separation

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Expert: - 5/15/2010


Question

Image
Dear Glen Demers!

I am called TOUCH-LUCK, a new user of Photoshop and just a self-study man, so I hope you will explain to me in details and how to do it best for designing.

I have a question related to a four-color image. I mean I have a CMYK image and wish to convert it to one-color image that can contain sufficient details of the image. In short, I need it to be printed with Transparency Paper by Printer Canon LBP-2900, not the Offset Printing at all. What must I do to make good quality? What is the way to make bigger dots for the image? I'll attach the image to you.

I am looking forward to your answer!

Best wishes and good luck!

Yours sincerely,



TOUCH-LUCK

Answer
Hi TOUCH-LUCK,

Go to the Channels palette and select just the color you want to print by clicking on that channel. Then go to Print With Preview. You'll be able to print out each color individually. You can save the file in the Photoshop DCS format and select multiple files in the dialog window, this will save your CMYK file as four files, one file for each color separation, or five files, if you opt to have a composite preview file.

The dot size of the output is determined by the printing software and the resolution of your printer. You may adjust this by going to Print With Preview>Show more options>Screen and adjusting the values here. You can change the screen frequency and dot shape but I would not recommend doing this as the settings are usually optimized for your selected printer.

For a more in-depth explanation of image quality and resolution go here: http://is.gd/c9ULr

Hope this helps,
Glen Demers
Adobe Certified Expert, Photoshop 7
Prepress Technician, Best Printing Online
www.bestprintingonline.com

For more Photoshop tips please visit our help pages here: http://www.bestprintingonline.com/photoshop.htm

Glen Demers

Expertise

I am an Adobe Certified Expert in Photoshop 7 and can answer any questions dealing with images for print; resolution, color correction, color space, sharpening and retouching. I am a prepress technician for Best Printing Online and if you want to know how to prepare your image for offset reproduction, I can help.

Experience

I've been working in the prepress aspect of printing for 25 years and am currently a prepress technician for Best Printing Online
I've worked with Photoshop since 1994 and have used all versions from 3 to CS3. I'm an ACE (Adobe certified expert) in Photoshop 7.0

Education/Credentials
I graduated High School and took 1 year of College level offset printing course. I've attended 2 Photoshop World conferences and taken numerous seminars pertaining to Photoshop and the print industry.

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