2bit AM screening 150 LPI

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A printing method used to print most monochrome manga. It consists of 150 lines of black/white dots per inch, and requires 600 DPI source data.

8bit AM screening 175 LPI

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A printing method used by most artbooks and posters. It consists of 175 lines per inch using 4 channels (CYMK) at 256 tones each and different angles. It requires 350 DPI source data

8bit AM screening 200~300 LPI

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Similar to the previous method, but used by high quality photo artbooks and some doujinshi.

FM screening

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A printing method used by some doujinshi. It matches 300 LPI AM quality, but due to the semi-random dotting that is part of the process, colors are inconsistent.

Hybrid screening (XM)

A printing method used by some doujinshi. It is a new printing process combining AM and FM methods. It matches 300~500 LPI AM quality, and there is no color inconsistency.

AM screening 65~133

A printing method used for [news]papers, cheap magazines and fabric goods.

Extra reading

• AM/FM/XM - Some info can be found here and here (pdf).
• LPI vs. DPI.
• Quality in Print - Everything you ever wanted to know about the printing process.

Updated by Aurelia over 14 years ago