US 12,077,406 B2
Medium conveying apparatus to execute abnormality processing for multi-feed based on overlap detection width
Masaaki Sakai, Kahoku (JP)
Assigned to PFU LIMITED, Kahoku (JP)
Filed by PFU LIMITED, Kahoku (JP)
Filed on Feb. 1, 2022, as Appl. No. 17/649,607.
Claims priority of application No. 2021-030542 (JP), filed on Feb. 26, 2021.
Prior Publication US 2022/0274795 A1, Sep. 1, 2022
Int. Cl. B65H 7/12 (2006.01)
CPC B65H 7/125 (2013.01) [B65H 2511/12 (2013.01); B65H 2511/524 (2013.01); B65H 2553/30 (2013.01); B65H 2801/03 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A medium conveying apparatus comprising:
a conveying roller to convey a medium;
a width detection sensor for detecting a width of the medium conveyed by the conveying roller in a direction perpendicular to a conveying direction;
an overlap detection sensor for detecting an overlap of the medium conveyed by the conveying roller; and
a processor to determine whether to execute an abnormality processing for a multi-feed, based on the width of the medium acquired based on a detection result by the width detection sensor and a detection result by the overlap detection sensor, wherein
the processor acquires an overlap detection width being a width in which the medium is estimated to overlap in the direction perpendicular to the conveying direction, based on the detection result by the overlap detection sensor, wherein
the processor executes the abnormality processing when the width of the medium and the overlap detection width are equal, and wherein
the processor does not execute the abnormality processing when the width of the medium is more than the overlap detection width.