Image forming apparatus having a separable coupling set

Details Image forming apparatus having a separable coupling set Image forming apparatus having a separable coupling set

2005-11-22

2008-09-09

Royer, William J (Department: 2852)

Electrophotography

Having particular structure

Modular or displaceable

C399S159000, C399S167000

Reexamination Certificate

active

07424247

ABSTRACT:
An image forming apparatus includes: an image carrier rotated by a drive section and carrying a toner image to transfer onto a transfer medium; and a drive-side coupling and an image carrier-side coupling capable of being connected to and being separated from each other by relative movement in a direction of a rotary shaft of the drive section and capable of connecting and separating the drive section and the image carrier. The drive-side coupling has a plurality of abutting surfaces for transmitting a driving force, the image carrier-side coupling has a plurality of abutting surfaces to which the driving force is transmitted, and the drive-side coupling and the image carrier-side coupling have a difference in angles of each of the abutting surfaces of the couplings with respect to a direction in which the couplings are connected to and separated from each other.

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European Search Report dated Jun. 28, 2006 (EP 05 11 1086) (3 pages).
Office Action mailed May 27, 2008 in Japanese Patent Application No. 2005-100451, filed Mar. 31, 2005.

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