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:
Feb. 18, 2014

Filed:

Feb. 28, 2012
Applicant:

Toru Katayama, Kanagawa, JP;

Inventor:

Toru Katayama, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 29/38 (2006.01); B41J 29/393 (2006.01); B41J 2/01 (2006.01);
U.S. Cl.
CPC ...
Abstract

An ink jet recording apparatus includes a processing barrel for performing predetermined processing on a recording medium, transfer barrels disposed upstream and downstream of the processing barrel, two detection sensors facing the two transfer barrels, respectively, each detecting the pass of the recording medium, and a detecting circuit for detecting an abnormal pass of the recording medium from two output signals output from the two sensors and including two reverse logic delay timers, each delaying timing of a logic reverse to a detection logic of each of the two sensors with respect to the each output signals. Signal changes shorter than timer setting periods of the timers are removed from the output signals, respectively, to thereby prevent detection errors of the abnormal pass of the recording medium.


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