Printing Color

Edgard RamirezJose Perales

Offset Printing• Is one of the most common ways of creating printed matter such as

newspapers, magazines and books at a high speed production.• Offset printing is a process of several steps.• http://www.youtube.com/watch?v=Q9jFK-OJnWM

• To print full color photos, the photo is separated into the (4) basic ink colors: cyan, magenta, yellow, black (CMYK).

• Each color layer is printed separately on on top of another, internally inside the printer.

• Color separation is performed by a printer’s filters (that exports and imports binary data), it tells it in order which color should be used.

• Full-tone is the ink density of a printing image.• Halftone is a technique reproducing of graphics in a continuous tone using

only dots that vary in size, shape, and spacing.

Screen Printing• A technique using a stencil to apply ink to materials other than regular

paper.• A stencil method of print making in which a design is printed on t-shirts,

posters, stickers, vinyl, wood, or other material.

Screen Printing

Laser Printers

•  Is a digital printing process that rapidly produces high quality text and graphics using a laser beam over a “photoreceptive drum” that defines the image.

• The drum then selectively collects charged toner and transfers the image to paper.

Inkjet PrintersInkjet printers use liquid ink sprayed through microscopic nozzles onto the paper.The printer uses small dots between the sizes of 50 to 60 microns that align together to create the image that is being printed out.