Monday, April 18, 2011

printing

Digital printing, such as you get from your office ink jet, utilizes a combination of CMYK dots to reproduce colors in your documents. This is a relatively new technology, and while it is expensive per piece for large runs, it's perfect for a smaller number of pieces. It doesn't require color separations or film, so it's easier to prepare and therefore less time for your designer.

Offset printing, on the other hand, works by isolating each color onto it's own plate, or film, and then laying down each ink one at a time. This requires color separations, where only what is printed in that color appears on each plate. Think of a 4 color beach ball- there would be one crescent of black on each plate, each crescent representing one color of the ball. When the printing is finished, the result is the four colored crescents all together, forming the beach ball. Offset printing is more expensive to set up, but the cost is all up front, with each page only incurring the cost of the paper and the ink, making it the method of choice for larger runs. So digital printing is more expensive per piece, but may be less expensive overall if your print run consists of a smaller number of pages, whereas offset will be more economical for a larger run.

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