The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 10, 2001

Filed:

Apr. 19, 2000
Applicant:
Inventor:

Makoto Tsunashima, Kawasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41F 7/02 ;
U.S. Cl.
CPC ...
B41F 7/02 ;
Abstract

A cylinder throwing-off/throwing-on controller for a multicolor lithographic rotary press in which paper splicing is performed. The cylinder throwing-off/throwing-in controller comprises a pulse generator for outputting a pulse signal every time the paper web travels a predetermined distance; a cylinder throwing-off timing adjustment unit including a counter and a setting device for setting a target count value in advance, the counter starting in response to the paper splicing signal, counting the pulse signal from the pulse generator, and outputting a cylinder throwing-off signal when the counted value reaches the target count value; a cylinder throwing-on timing adjustment unit provided for each of the printing units, the cylinder throwing-on timing adjustment unit starting in response to the cylinder throwing-off signal and outputting a cylinder throwing-on signal after elapse of a preset period of time; and a cylinder throwing-off/throwing-on mechanism for simultaneously moving the blanket cylinders of the plurality of printing units from the printing position to the non-printing position in response to the cylinder throwing-off signal and for sequentially moving the blanket cylinders of the plurality of printing units from the non-printing position to the printing position in response to the cylinder throwing-on signal, from the furthest-upstream printing unit toward the furthest-downstream printing unit.


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