Image forming apparatus and image forming unit

Details Image forming apparatus and image forming unit Image forming apparatus and image forming unit

2007-05-29

2007-05-29

Gray, David M. (Department: 2852)

Electrophotography

Diagnostics

Consumable

C399S110000, C399S128000, C399S177000, C399S182000, C399S186000, C399S187000

Reexamination Certificate

active

11367421

ABSTRACT:
An image forming apparatus comprising: an image forming section and a residual toner amount detection unit. The image forming section includes a photosensitive member, a charging unit, an exposure unit, a developing unit, and a toner storage unit. The residual toner amount detection unit detects an amount of toner remaining in the developing unit. The residual toner amount detection unit includes a light-emitting element and a light-receiving element. After the toner is deposited on the photosensitive member to form a toner image until electric charge is given onto a photosensitive layer of the photosensitive member by the charging unit again, the light-emitting element removes electric charge remaining on the photosensitive layer.

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English translation of JPO PN 2002-278395.

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