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.

Patent No.:

US 8550579 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 08, 2013

Filed:

Dec. 03, 2010
Applicant:

Tomokazu Tsuchiya, Kanagawa, JP;

Inventor:

Tomokazu Tsuchiya, Kanagawa, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/01 (2006.01); B41J 2/17 (2006.01);
U.S. Cl.
CPC ...
Abstract

An image forming device includes a pump which supplies a recording fluid contained in a first container to a second container via a tube, and a control unit configured to perform rotation of a roller disposed in the pump to press the tube and feed the recording fluid in the tube. When a negative pressure in the second container is not formed by performing a first backward rotation of the roller by a predetermined amount, the control unit performs a forward rotation of the roller and performs a second backward rotation of the roller after an end of the forward rotation.


Find Patent Forward Citations

Tsuchiya, Tomokazu. (2013). Image forming device, pump control method, and recording medium (U.S. Patent No. 8550579). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8550579

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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