Image recording apparatus
AssigneeFuji Xerox Co., Ltd.
InventorMakoto Kanai
Life of this patent
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Abstract
An image recording apparatus such as a laser printer in which a beam from a laser source is deflected by a deflector such as a rotating polygon mirror and a surface to be scanned is scanned by such deflected beam. The image recording apparatus includes a light source for outputting a beam, a deflection unit for deflecting the beam in predetermined directions to scan a scanning surface, a beam detection unit for receiving the beam deflected by the deflection unit to set a reference timing every scanning operation, and a beam intensity switching unit for controlling the light source to switch an intensity of the beam by a plurality of degrees.
Claims6
An image recording apparatus comprising:
- a light source for outputting a beam;
- deflection means for deflecting the beam in predetermined directions to scan a scanning surface;
- beam detection means for receiving the beam deflected by said deflection means to set a reference timing every scanning operation;
- and
- beam intensity switching means for controlling said light source to switch an intensity of the beam irradiated to said beam detection means and an intensity of the beam scanned on the scanning surface by a plurality-of degrees.
An image recording apparatus comprising:
- a light source for outputting a beam;
- deflection means for deflecting the beam in predetermined directions to scan a scanning surface;
- beam detection means for receiving the beam deflected by said deflection means to set a reference timing every scanning operation;
- beam intensity switching means for controlling said light source to switch an intensity of the beam by a plurality-of degrees;
- and wherein said light source stops output of the beam after a first predetermined time elapses from the reference timing set by said beam detection means, and restarts output of a beam of which intensity is smaller than that prior to stopping output of the beam after a second predetermined time elapses from the reference timing.
Dependencies are inferred from the claim text.