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. 29, 2022

Filed:

Jan. 14, 2021
Applicant:

Pfu Limited, Kahoku, JP;

Inventors:

Tomoyuki Niwata, Kahoku, JP;

Ken Funaki, Kahoku, JP;

Hiroyuki Kitano, Kahoku, JP;

Assignee:

PFU LIMITED, Kahoku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/047 (2006.01); H04N 1/00 (2006.01);
U.S. Cl.
CPC ...
H04N 1/047 (2013.01); H04N 1/00037 (2013.01); H04N 1/00082 (2013.01); H04N 1/00602 (2013.01);
Abstract

A medium conveying apparatus includes a processor to determine that a conveyance abnormality of a medium has occurred when a first medium sensor does not detect the medium when a motor is driven by a first predetermined amount after starting feeding of the medium, or when a second medium sensor does not detect the medium when the motor is driven by a second predetermined amount after the first medium sensor detects the medium, and calculate a degree of a slip occurred between the medium and a feed roller from when a front end of the medium passes through a position of the first medium sensor until the front end of the medium passes through a position of the second medium sensor. The processor changes the first predetermined amount or the second predetermined amount based on the degree of the slip of a medium fed in the past.


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