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Laser print apparatus that generates pulse width value and justification value based on pixels in a multi-bit image

  • US 20040156079A1
  • Filed: 02/12/2003
  • Published: 08/12/2004
  • Est. Priority Date: 02/12/2003
  • Status: Active Grant
First Claim
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1. A laser print apparatus comprising:

  • a memory for storing a multi-bit image including a plurality of pixels, each pixel represented by an N-bit value, wherein N is greater than one;

    a modulation code generator for analyzing three adjacent pixels, the three adjacent pixels including a left pixel, a center pixel, and a right pixel, the modulation code generator configured to generate a pulse width value based on the value of the center pixel, and a justification value based on the values of the left pixel and the right pixel; and

    a laser print engine for forming an output pixel on media based on the pulse width value and the justification value.

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