| US 7,546,081 B2 | ||
| Paper finisher having paper perforating apparatus, and image forming apparatus equipped with paper perforating apparatus and paper finisher | ||
| Junichi Tokita, Kanagawa (Japan); Kenji Yamada, Tokyo (Japan); Junichi Iida, Kanagawa (Japan); Nobuyoshi Suzuki, Tokyo (Japan); Naohiro Kikkawa, Tokyo (Japan); Shingo Matsushita, Kanagawa (Japan); and Hiromoto Saitoh, Kanagawa (Japan) | ||
| Assigned to Ricoh Company, Ltd., Tokyo (Japan) | ||
| Filed on Nov. 07, 2005, as Appl. No. 11/267,403. | ||
| Claims priority of application No. 2004-327194 (JP), filed on Nov. 11, 2004; and application No. 2005-262416 (JP), filed on Sep. 09, 2005. | ||
| Prior Publication US 2006/0120783 A1, Jun. 08, 2006 | ||
| Int. Cl. G03G 15/00 (2006.01) | ||
| U.S. Cl. 399—407 [399/408; 399/409; 399/410; 270/58.08] | 19 Claims |
| 1. A paper perforating apparatus, comprising:
means for conveying a paper;
means for perforating the paper conveyed by the means for conveying;
means for detecting an end portion parallel to a conveyance direction of the paper conveyed by the means for conveying; and
means for moving the means for perforating in a direction perpendicular to the conveyance direction based on a distance computed
based on the end portion detected by the means for detecting, wherein
the paper perforating apparatus offsets by a predetermined distance a standby position of the means for perforating, which
is in the direction perpendicular to the conveyance direction, from a position in which holes are punched out on the paper,
the means for perforating starts an operation of perforation preparation from the standby position after a front end of the
paper, which is perpendicular to the conveyance direction, passes the means for perforating, and
the means for moving moves the means for perforating from the standby position to a home position based on the distance, after
the front end of the paper passes the means for perforating.
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