US 7,680,446 B2Granted

Cleaning device, process cartridge and image forming apparatus

AssigneeRicoh Company, Ltd.

InventorsTakeshi Shintani, Kaoru Yoshino, Satoshi Hatori, Hiroshi Ono, Akio Kosuge, Takaya Muraishi

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Abstract

An image forming apparatus includes a photosensitive member, a charging member, an electrostatic latent image forming member, a developing member, a transferring member, and a cleaning device. The cleaning device includes a cleaning brush contacting with a photosensitive member to remove residual toner on the surface of the photosensitive member and a lubricant supplying brush contacting with the photosensitive member to supply a lubricant to the surface of the photosensitive member. The lubricant supplying brush is configured to change an amount of the lubricant supplied to the surface of the photosensitive member depending on a linear speed of the photosensitive member.

Claims12

Dependent claims

A cleaning device installed in an image forming apparatus comprising:

a cleaning brush configured to contact a photosensitive member to remove residual toner on the surface of the photosensitive member;
and
a lubricant supplying brush configured to contact the photosensitive member to supply a lubricant to the surface of the photosensitive member;
wherein a linear speed of the lubricant supplying brush is changed such that a ratio of a linear speed of the photosensitive member to the linear speed of the lubricant supplying brush is maintained when the linear speed of the photosensitive member is changed, and a linear speed of the cleaning brush is changed such that a ratio of the linear speed of the photosensitive member to the linear speed of the cleaning brush is maintained when the linear speed of the photosensitive member is changed.

1 more element

Dependencies are inferred from the claim text.