US 12,103,809 B2
Image reading apparatus
Yoichiro Nishimura, Kitakyushu (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Sep. 29, 2022, as Appl. No. 17/936,574.
Claims priority of application No. 2021-160548 (JP), filed on Sep. 30, 2021.
Prior Publication US 2023/0094561 A1, Mar. 30, 2023
Int. Cl. B65H 5/06 (2006.01); B65H 29/12 (2006.01); H04N 1/12 (2006.01)
CPC B65H 5/062 (2013.01) [B65H 29/125 (2013.01); H04N 1/1225 (2013.01); B65H 2404/144 (2013.01); B65H 2404/1451 (2013.01); B65H 2515/30 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An image reading apparatus comprising:
a first transport roller pair that simultaneously presses and transports a material, the first transport roller pair having a first roller and a second roller;
a reader that reads the material being transported by the first transport roller pair;
a second transport roller pair that simultaneously presses and transports the material, the second transport roller pair having a third roller and a fourth roller, the second transport roller pair being positioned downstream of the reader in a transport direction of the material;
a driver that applies power to the first roller, the second roller, the third roller, and the fourth roller; and
a pressing section configured to vary a first pressing force and a second pressing force, the first pressing force being generated between the first roller and the second roller, the second pressing force being generated between the third roller and the fourth roller, wherein
the pressing section varies the second pressing force in such a way that the second pressing force when the first transport roller pair transports the material but the second transport roller pair does not transport the material becomes lower than the second pressing force when neither the first transport roller pair nor the second transport roller pair transports the material.