US 12,319,537 B2
Sheet conveying apparatus and image reading apparatus
Masato Furukawa, Chiba (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Sep. 28, 2023, as Appl. No. 18/477,031.
Application 18/477,031 is a continuation of application No. 17/099,512, filed on Nov. 16, 2020, granted, now 11,807,490.
Claims priority of application No. 2019-213934 (JP), filed on Nov. 27, 2019.
Prior Publication US 2024/0025684 A1, Jan. 25, 2024
Int. Cl. B65H 7/18 (2006.01); B65H 7/12 (2006.01); H04N 1/00 (2006.01)
CPC B65H 7/18 (2013.01) [B65H 7/125 (2013.01); H04N 1/00591 (2013.01); H04N 1/00708 (2013.01); B65H 2511/11 (2013.01); B65H 2511/524 (2013.01); B65H 2801/39 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A sheet conveying apparatus comprising:
a tray on which a plurality of sheets are to be stacked where the tray is configured such that a business card can be stacked on the tray, and the tray further is configured such that a labeled sheet, instead of the business card, to which a label is attached and having a size with a length in a conveyance direction of the labeled sheet larger than a length of the business card in the conveyance direction of the sheet, can be stacked on the tray,
a feeder configured to successively convey the plurality of sheets stacked on the tray;
a sheet sensor, arranged in a conveyance path in which a sheet of the plurality of sheets is conveyed, configured to detect the sheet conveyed by the feeder;
a double-feed sensor configured to detect double feed corresponding to a state in which plural sheets are conveyed in an overlapping manner by the feeder; and
a controller configured to determine whether or not the double feed has occurred, and to determine, as a determined sheet length and based on a detection result of the sheet sensor, a length of the sheet in the conveyance direction during conveyance of the sheet by the feeder, where a double-feed length corresponds to a length, in the conveyance direction of the sheet, of a region in which the double feed has been detected by the double-feed sensor,
wherein, in a case where the double-feed length is larger than a predetermined distance which is common to the business card and the labeled sheet, the controller determines that the double feed has occurred,
wherein, in a case where the double-feed length is smaller than the first predetermined distance but larger than 0 and the determined sheet length is not larger than a predetermined length which is common to the business card and the labeled sheet, the controller determines that the double feed has occurred, and
wherein, in a case where the double-feed length is smaller than the predetermined distance but larger than 0 and the determined sheet length is larger than the predetermined length, the controller determines that the double feed has not occurred.