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Image forming apparatus having developing supporters

  • US 6,507,715 B2
  • Filed: 07/06/2001
  • Issued: 01/14/2003
  • Est. Priority Date: 07/07/2000
  • Status: Expired due to Term
First Claim
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1. An image forming apparatus comprising:

  • a photoconductor supported endlessly movably, latent image forming means for recording and forming an electrostatic latent image on the photoconductor; and

    a developing device supplying a developer to the photoconductor holding the electrostatic latent image and forming a toner image on the photoconductor;

    wherein said developing device includes plural developer supporters provided opposite to the photoconductor, a development power bias source for applying a development bias voltage generated by superimposing an AC voltage on a DC voltage to each of the developer supporters, and a phase shifter for shifting a phase of the AC voltage in the development bias voltage in each of the developer supporters.

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