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Title:
PAPER POST-PROCESSING DEVICE, PICTURE IMAGE FORMATION DEVICE, AND PAPER CONVEYANCE DEVICE
Document Type and Number:
Japanese Patent JP3791244
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To improve paper conveyance property and ensure print productivity by shortening wait time for paper conveyance at the time of staple processing and provide a paper post-processing device capable of conveying a thick paper.
SOLUTION: A conveyance means conveying paper P discharged from a picture image formation device main body and carried into a paper post-processing device FS has a second conveyance roller means 32 feeding the paper P into an intermediate stacker 33, a first conveyance roller means 31 arranged on the upstream side in the direction of conveyance of the second conveyance roller means 32 to nip and hold the paper P and convey it to the second conveyance roller means 32, and a paper guide passage (h) guiding the paper P conveyed from the first conveyance roller means 31 to the second conveyance roller means 32. A pressing force change means capable of changing nipping and pressing forces of the first conveyance roller means 31 is provided in the first conveyance roller means 31. A control means controls in such a way that a plurality of sheets of paper P can be overlapped and conveyed simultaneously by the first conveyance roller means 31 and the second conveyance roller means 32 and nipping and pressing forces of the paper P conveyed by the first conveyance roller means 31 are changed.


Inventors:
Kawano Minoru
Takeshi Tsuchiya
Masaru Otsuka
Matsumoto Toshitaka
Hirohiko Okabe
Tadahiro Takahashi
Application Number:
JP16092499A
Publication Date:
June 28, 2006
Filing Date:
June 08, 1999
Export Citation:
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Assignee:
Konica Minolta Holdings Co., Ltd.
International Classes:
B65H31/30; B65H37/04; B65H9/14; B65H29/00; G03G15/00; (IPC1-7): B65H37/04; B65H9/14; B65H29/00; B65H31/30; G03G15/00
Domestic Patent References:
JP9235069A
JP8020455A
JP9052641A
JP59007659A