Image forming apparatus having an endless belt provided with rib

Details Image forming apparatus having an endless belt provided with rib Image forming apparatus having an endless belt provided with rib

1999-02-04

2000-12-12

Royer, William J.

Electrophotography

Image formation

Photoconductive member

399302, G03G 1500

Patent

active

061609781

ABSTRACT:
An improved image forming apparatus having an endless belt is provided. The apparatus uses an endless belt as a toner image carrier for holding a toner image thereon and transporting the toner image. In one embodiment, rib members are arranged on opposing ends of the endless belt to assist in inhibiting the endless belt from walking relative to a drive roll. A rib guide member is interposed between the rib member and the drive roll, and is rotatable independent of the drive roll. In another embodiment, the toner image is transferred from a photosensitive member to the endless transfer belt and then to a recording medium. Indicia is arranged on an outer perimeter surface of the endless transfer belt indicative of a position of the endless transfer belt, with a sensor used to detect the indicia.

REFERENCES:
patent: 4429985 (1984-02-01), Yokota
patent: 4561757 (1985-12-01), Salomon et al.
patent: 4862211 (1989-08-01), Kutami et al.
patent: 5070365 (1991-12-01), Agarwal
patent: 5697031 (1997-12-01), Kamiya et al.

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