US 11,697,565 B2
Medium feeding device and image reading apparatus
Seiji Eguchi, Kitakyushu (JP); and Takayuki Shiota, Kitakyushu (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on May 27, 2020, as Appl. No. 16/884,309.
Claims priority of application No. 2019-100377 (JP), filed on May 29, 2019.
Prior Publication US 2020/0377319 A1, Dec. 3, 2020
Int. Cl. B65H 7/06 (2006.01); B65H 7/16 (2006.01); B65H 29/24 (2006.01)
CPC B65H 7/16 (2013.01) [B65H 7/06 (2013.01); B65H 29/245 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A medium feeding device comprising:
a medium mounting section that forms a medium mounting surface on which a medium is mounted;
a feeding unit that feeds a lowest medium among media mounted on the medium mounting section in a feeding direction by coming into contact with the lowest medium;
a separation unit that separates the medium with the feeding unit;
an operation detection unit that is disposed at a position facing a surface of the medium in the medium mounting section and detects at least a movement of the medium in the feeding direction;
a plurality of interval forming units that are provided upstream of the operation detection unit and that are offset with the operation detection unit in a width direction of the medium feeding device, the feeding unit and the separation unit in the feeding direction, the plurality of interval forming units each having a bottom surface that contacts the medium mounting surface and a surface that projects upwardly from the medium mounting surface that is upstream of the feeding unit and the separation unit, and forms an interval in the feeding direction between a trailing end of a first medium which is the lowest medium fed by the feeding unit among media mounted on the medium mounting section and a trailing end of a second medium which is bound with the first medium and stacked on the first medium;
a pair of edge guides that are separate from the plurality of interval forming units; and
a control unit that stops feeding of the medium based on a detection interval by a detection value of the operation detection unit.