US 11,787,653 B2
Medium feeding device and image reading apparatus
Tokujiro Okuno, Kitakyushu (JP); and Hiromichi Kitsuki, Kitakyushu (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by Seiko Epson Corporation, Tokyo (JP)
Filed on Jun. 21, 2021, as Appl. No. 17/353,028.
Application 17/353,028 is a continuation of application No. 16/232,798, filed on Dec. 26, 2018, granted, now 11,117,768.
Claims priority of application No. 2017-250711 (JP), filed on Dec. 27, 2017.
Prior Publication US 2021/0309477 A1, Oct. 7, 2021
Int. Cl. B65H 9/00 (2006.01); B65H 3/06 (2006.01); B65H 7/08 (2006.01); H04N 1/00 (2006.01)
CPC B65H 9/002 (2013.01) [B65H 3/063 (2013.01); B65H 3/0653 (2013.01); B65H 7/08 (2013.01); H04N 1/00718 (2013.01); B65H 2402/46 (2013.01); B65H 2403/724 (2013.01); B65H 2404/133 (2013.01); B65H 2553/82 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An image reading apparatus comprising:
a reader that reads a medium;
a medium placing section that supports the medium and is provided at an upstream of the reader in a medium feeding direction;
a feeding section that includes a first roller and a second roller provided at an interval in a width direction intersecting the medium feeding direction, and feeds the medium from the medium placing section;
a detector provided downstream of the feeding roller in the medium feeding direction;
a controller that controls the feeding section;
a first driving source that drives the first roller;
a second driving source that drives the second roller;
a switch that switches driving source for driving the first roller between the first driving source and the second driving source;
a first power transmission path that is a path for transmitting power of the first driving source; and
a second power transmission path that is a path for transmitting power of the second driving source to the second roller,
wherein the first power transmission path is provided with a one-way clutch,
the controller controls rotation speeds of the first roller and the second roller to correct a skew of the medium when the controller detects the skew based on a detection of the detector, and
the controller, when detecting the skew, switches between a first state in which the first roller is driven by the second driving source and a second state in which the first roller is driven by the first driving source.