Title:
重送検出装置、制御方法及び制御プログラム
Document Type and Number:
Japanese Patent JP7191198
Kind Code:
B2
Abstract:
Provided are a multi-feed detection apparatus, a control method, and a control program to suitably determine whether or not the multi-feed detection apparatus returns a fed medium to a direction of a medium tray when multi-feed has occurred. A multi-feed detection apparatus includes an ultrasonic sensor to generate an ultrasonic signal, a multi-feed determination module to determine that feeding of the medium is normal when a signal value of the ultrasonic signal is equal to or more than a first threshold value, and determine that a multi-feed of the medium has occurred when the signal value of the ultrasonic signal is less than the first threshold value, and a control module to control the feed module to return the fed medium to a direction of the medium tray when the signal value of the ultrasonic signal is less than a second threshold value smaller than the first threshold value.
Inventors:
Kiichiro Shimosaka
Masaaki Sakai
Masaaki Sakai
Application Number:
JP2021506107A
Publication Date:
December 16, 2022
Filing Date:
March 20, 2019
Export Citation:
Assignee:
Pfu corporation
International Classes:
B65H7/12; B41J29/38; B41J29/48; G03G15/00; G03G21/00; H04N1/00
Domestic Patent References:
| JP2016204130A | ||||
| JP2013063843A | ||||
| JP2012111565A | ||||
| JP2013082539A | ||||
| JP2009137716A |
Attorney, Agent or Firm:
Aoki Atsushi
Shinji Mihashi
Tomohiro Nanzan
Go Miura
Shinji Mihashi
Tomohiro Nanzan
Go Miura
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