Patent Number: 8,573,581

Title: Skew correction device, image forming system, and skew correction method

Abstract: A skew correction device includes: a conveying path through which a booklet formed by folding a sheet bundle is conveyed in a conveying direction; a positioning unit on which a leading-end portion of the booklet in the conveying direction is to abut, the positioning unit being arranged to be able to protrude into and retreat from the conveying path; an abutting unit that pushes a trailing-end portion of the booklet in the conveying direction, thereby moving the booklet toward the positioning unit and causing the leading-end portion of the booklet to abut on the positioning unit; and a pushing force changing unit that changes a pushing force applied by the abutting unit to the booklet to push the booklet against the positioning unit based on a pushing amount of the abutting unit to the booklet.

Inventors: Suzuki; Nobuyoshi (Tokyo, JP), Hata; Kiyoshi (Tokyo, JP), Sasaki; Kei (Miyagi, JP), Matsushita; Shingo (Tokyo, JP), Hidaka; Makoto (Tokyo, JP), Saito; Takashi (Kanagawa, JP), Musha; Akihiro (Kanagawa, JP), Matsumoto; Takamasa (Miyagi, JP)

Assignee: Ricoh Company, Limited

International Classification: B65H 39/00 (20060101)

Expiration Date: 1/05/12017