Glossary

Glossary of terms:

There are a lot of terms that have been adopted by the printing industry. Hopefully the glossary below will help.

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    • Metamerism

    An effect of two colours that match each other in one light but not another.

    • Microporous media or coating

    This is a type of coating process for inkjet media. The Microporous coating is likened to a sponge, in that is has open pores that quickly soak inkjet ink into it's coating, leaving the media seemingly "Instant dry" and well protected against smudging or damage. The ink is still wet when it's printed (as with normal photo papers) although it's been soaked into the coating to a layer that you can't touch. There are serious production advantages to this type of media and it has proved very popular over the last few years, although because of the nature of this coating having open pores, the prints are prone to premature fading from pollutants in the air having full contact with the ink.

    • Moire (interference pattern)

    When the screening of the printer interacts with an existing screening in the file to create a new undesirable pattern. This often happens if a file is scanned from an offset print and then reproduced again on offset - the 2 versions of halftone don't align with each other and a new different screen is produced. An easy way to see an example of moire is to go to your junk mail and look at one of the TV's for sale, often the holes on the speaker grills from the TV don't align with the offset rosette creating moire.

    • Nozzles

    On an inkjet printer this refers to the very fine holes in the print head that fire ink at the paper. These

    • Opacity

    Resistance to the passage of light.

    • OS

    Stands for Operating System, such as MS Windows, Apple 10.4, or Linux.

    • Output Profile

    Also described as Media Profile. The tells your colour workflow software how to produce a colour on the output device.




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Last modified: 21st July 2008 at 12:09 GMT+10