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Developing apparatus

  • US 6,134,396 A
  • Filed: 11/06/1997
  • Issued: 10/17/2000
  • Est. Priority Date: 11/08/1996
  • Status: Expired due to Fees
First Claim
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1. An image forming apparatus, comprising:

  • a latent image support;

    a developer support to which a developing bias with an AC component superimposed on a DC component is applied for visualizing a latent image on said latent image support using a dual component developer supported on said developer support;

    a resistance measuring device that measures a carrier resistance of the developer;

    a developing bias power supply; and

    peak-to-peak voltage changing means provided in said developing bias power supply for reducing a peak-to-peak voltage of the AC component gradually based on a reduction of the carrier resistance.

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