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High-resolution printers might not create as many visible dots as you anticipate. The printer needs to use around 256 dots for each pixel in the printed image in order to render an 8-bit image completely. This lowers the printer's visible resolution, resulting in an effective resolution of around 75 pixels per inch, or PPI, for a printer rated at 1200 dpi. Actual resolution can also be influenced by the halftone frequency of the printer. Halftones, which are measured in lines per inch, are patterns of bigger or smaller dots used to create a shaded look. Although most laser printers have a resolution of 200 LPI or more, coarser halftones for copying can have a resolution as low as 85 LPI. a b c d e f g |
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