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:
Jul. 19, 2022

Filed:

Jan. 17, 2019
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Yuki Oguchi, Okaya, JP;

Soichiro Seo, Shiojiri, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21D 5/02 (2006.01); D21D 1/20 (2006.01); D21C 5/02 (2006.01); D21F 9/00 (2006.01); D21D 5/06 (2006.01);
U.S. Cl.
CPC ...
D21D 5/02 (2013.01); D21C 5/02 (2013.01); D21D 1/20 (2013.01); D21D 5/06 (2013.01); D21F 9/00 (2013.01);
Abstract

Variation in the thickness of accumulated material is suppressed when material containing fiber is dispersed by the sieve and accumulated. A sheet manufacturing apparatus includes a drum that sieves defibrated material containing fiber, a first web former that accumulates first screened material discharged from the drum, and a processor that processes a first web accumulated in the first web former. During processing by the processor, the mesh belt operates at a first speed. When operation starts with the drum not operating, a startup operation including the mesh belt operating at a higher speed than the first speed in a first period after the drum starts is executed.


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