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High frequency vibratory enhanced cleaning in electrostatic imaging devices

  • US 5,030,999 A
  • Filed: 06/19/1989
  • Issued: 07/09/1991
  • Est. Priority Date: 06/19/1989
  • Status: Expired due to Term
First Claim
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1. In an electrostatic imaging system in which an electrostatic latent image is formed on a first surface of an imaging member moving along an endless path in a process direction, the latent image is developed with toner, and the toner image thus formed is transferred to another surface, a cleaning arrangement for cleaning residual toner from the imaging surface comprises:

  • a cleaner to release and remove residual toner from the first surface;

    cleaning enhancement means, arranged at an upstream position from said cleaner with respect to the process direction for enhancing toner release from the first surface, including an electrostatic discharge device supported at said upstream position in close association with a high frequency vibrating device;

    said electrostatic discharge device supported to deposit ions on said residual toner and said first surface to dissipate charge thereon; and

    said high frequency vibrating device coupled to a second surface of the imaging member at said upstream position, whereby said electrostatic discharge device and said high frequency vibrating device concurrently discharge the imaging member and mechanically release toner adhered thereto.

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