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:
Mar. 05, 2013

Filed:

Feb. 22, 2010
Applicants:

Koji Morofuji, Tokyo, JP;

Takeshi Kato, Kanagawa, JP;

Toshiyuki Kazama, Kanagawa, JP;

Kozo Tagawa, Kanagawa, JP;

Inventors:

Koji Morofuji, Tokyo, JP;

Takeshi Kato, Kanagawa, JP;

Toshiyuki Kazama, Kanagawa, JP;

Kozo Tagawa, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); B41J 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A measuring device of a length of a recording material includes: a rotary unit that rotates while coming into contact with the recording material; a pulse signal output unit that outputs a pulse signal in response to a rotation angle of the rotary unit; first and second detection units that detect the recording material; and a calculation unit that calculates a length of the recording material. The calculation unit calculates a piece of the length of the recording material corresponding to a time below pulse interval of the pulse signal and then calculates the total length in the transport direction of the recording material.


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