Optical alignment method and detector

  • US 6,485,124 B1
  • Filed: 07/02/2001
  • Issued: 11/26/2002
  • Est. Priority Date: 07/02/2001
  • Status: Expired due to Term
First Claim
Patent Images

1. A printing apparatus, comprising:

  • a light source;

    an alignment sensor, wherein said alignment sensor includes a detector and a single focusing element to image a point on a media to a point on the detector; and

    a control unit to determine whether said printing apparatus is aligned based on a detection by the alignment sensor of a predetermined mark on the media.

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