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

  • US 7,609,409 B2
  • Filed: 10/08/2007
  • Issued: 10/27/2009
  • 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;

    a modulation code generator to generate a pulse width value, the pulse width value represented by an M-bit value, the modulation code generator linearly mapping the N-bit value to the M-bit value; and

    a laser print engine to form an output pixel on media based on the pulse width value, wherein the modulation code generator is operative to concatenate at least one most significant bit of a current pixel to a least significant end of a justification value for the current pixel.

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