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AssigneeMinolta Camera Kabushiki Kaisha
InventorsHiroshi Murasaki, Masaya Ogawa, Hidetoshi Kawabata
Estimating the term…
In a dry-type developing apparatus for use in electrophotography including a developing sleeve for conveying a two-component developer composed of a toner and a carrier to a developing station, an automatic toner replenishing device comprises a roller to which voltage is applied having recessed toner dispenser portions and a toner recovering peripheral surface portion on its periphery and rotatable in contact with a portion of the developer on the sleeve after the developer portion has passed through the developing station, bias voltage sources connected to the sleeve and to the roller respectively to produce a potential difference between the sleeve and the roller, and a toner tank arranged to cover part of the roller and containing the toner to be replenished.
In a dry-type developing apparatus for converting electrostatic latent images into visible images with a two-component developer composed of a triboelectrically chargeable toner and a magnetic carrier and conveyed to a developing station by a developing sleeve having a plurality of magnets arranged in its interior, an automatic toner replenishing device comprising:
In a dry-type developing apparatus for converting electrostatic latent images into visible images with a developer including a triboelectrically chargeable toner and a magnetic carrier and conveyed to a developing station by a developing sleeve having a magnet member in its interior, an automatic toner replenishing device comprising a source of developer in communication with said developing sleeve, a source of toner and a transfer member containing metering recesses for mechanically carrying and conveying toner at a predetermined rate from said toner source to said developer source and having a peripheral surface for electrostatically withdrawing excess toner from said developing sleeve following said developing station and returning said excess toner to said toner source.
Dependencies are inferred from the claim text.