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Title:
PRINTING APPARATUS
Document Type and Number:
Japanese Patent JP2011136454
Kind Code:
A
Abstract:

To prevent occurrence of wrinkles on a printed sheet after printing, in a printing apparatus configured to temporarily store a paper sheet on which printing is performed by one printing means in a storage part and then convey the paper sheet to another printing means by a paper sheet re-feeding means.

The printing apparatus includes a first printing means 3 for performing printing on one surface of the paper sheet P, a storage part 4 for temporarily storing the paper sheet P on which printing has been performed, a second printing means 5 for performing printing on one surface or the other surface of the paper sheet P while pressing the paper sheet P to a plate surface 51a, and a paper sheet re-feeding means 83 for conveying the paper sheet P with the printing performed on the one surface from the storage part 4 to the second printing means 5 and successively conveying the paper sheet P with the second printing means 5 for at least a certain period. The printer is also provided with a speed control means to set paper sheet conveying speed v1 of the paper sheet re-feeding means 83 to a value equal to that of a paper sheet conveying speed v2 of the second printing means 5 at a point of time when paper sheet pressing on the plate surface is started, and then reduce the speed to a value lower that of the speed v2.


Inventors:
TANAKA WATARU
IRIE YUKIO
Application Number:
JP2009296850A
Publication Date:
July 14, 2011
Filing Date:
December 28, 2009
Export Citation:
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Assignee:
RISO KAGAKU CORP
International Classes:
B41L13/16; B41L13/04; B65H5/06; B65H85/00
Attorney, Agent or Firm:
Yanagita Seiji
Go Sakuma