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

  • US 7,280,246 B2
  • Filed: 02/12/2003
  • Issued: 10/09/2007
  • Est. Priority Date: 02/12/2003
  • Status: Expired due to Fees
First Claim
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1. A laser print apparatus comprising:

  • a memory to store 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 to analyze 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 concatenating at least one most significant bit of the center pixel to the least significant end of the value for the center pixel, and a justification value based on the values of the left pixel and the right pixel; and

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

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