Minolta Camera Kabushiki Kaisha

Takashi Kuwako

Takao Fujiwara

Tateomi Kono

A toner scattering prevention device for preventing toner from scattering out of a developing device or a cleaning device. The device includes a toner sealing plate and a clamp arrangement. The clamp arrangement prevents the toner sealing plate from being displaced in a direction at right angles to a widthwise direction of a toner image support member but allows displacement of the toner sealing plate, resulting from expansion or shrinkage of the toner sealing plate in the widthwise direction of the toner image support member due to environmental changes, aging, etc.

Toner scattering prevention device

A photoreceptor drum for use in an electrophotographic copying apparatus which includes a sheet-like photoreceptor stored in roll form on a supply roll housed within the drum and led therefrom around the outer periphery of the drum through a slot axially formed in the drum surface so as to be wound onto a takeup roll also housed within the drum for enabling the photoreceptor on the drum to be replaced when wound onto the takeup roll. The drum is provided with a covering member for the slot which can be raised from the photoreceptor surface during replacement of the photoreceptor, and the raising of the covering member is associated with releasing of locking of the supply roll.

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Okazaki, Japan

Takashi Kuwako