US 12,221,317 B2
Feeding device that calculates rigidity of sheet according to curvature information outputted by sheet sensor
Takuya Hamada, Osaka (JP)
Assigned to KYOCERA Document Solutions Inc., Osaka (JP)
Filed by KYOCERA Document Solutions Inc., Osaka (JP)
Filed on Oct. 18, 2022, as Appl. No. 17/967,954.
Claims priority of application No. 2021-173001 (JP), filed on Oct. 22, 2021.
Prior Publication US 2023/0130089 A1, Apr. 27, 2023
Int. Cl. B65H 7/14 (2006.01)
CPC B65H 7/14 (2013.01) [B65H 2511/17 (2013.01); B65H 2515/81 (2013.01); B65H 2553/30 (2013.01); B65H 2553/414 (2013.01); B65H 2801/06 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A feeding device comprising:
a sheet tray on which a sheet is placed;
a transport device that transports the sheet placed on the sheet tray;
a sheet sensor that outputs curvature information indicating a curvature status of the sheet being transported by the transport device, the sheet sensor being located upstream of the transport device in a sheet transport direction; and
a control device including a processor, and configured to act, when the processor executes a control program, as:
a measuring device that measures a curvature amount of the sheet, on a basis of the curvature information; and
a calculation device that calculates rigidity of the sheet, on a basis of the curvature amount,
wherein the sheet sensor includes an ultrasonic transmitter that emits ultrasonic wave toward the sheet, and an ultrasonic receiver that receives the ultrasonic wave reflected by the sheet, and
the sheet sensor outputs the curvature information based on sound volume of the reflected wave.