US 11,943,413 B2
Image reading device
Tsuneo Kasai, Nagano (JP); Ryo Yamaguchi, Nagano (JP); and Sho Arai, Nagano (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Jan. 4, 2023, as Appl. No. 18/149,693.
Claims priority of application No. 2022-000998 (JP), filed on Jan. 6, 2022.
Prior Publication US 2023/0216972 A1, Jul. 6, 2023
Int. Cl. H04N 1/193 (2006.01); H04N 1/10 (2006.01)
CPC H04N 1/1936 (2013.01) [H04N 1/1013 (2013.01); H04N 2201/0081 (2013.01); H04N 2201/0094 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An image reading device comprising:
a document platen on which a document is placed; and
a reading sensor having a light source for irradiating the document with light, wherein
the reading sensor performs first scanning for irradiating the document with light at a first light quantity, and then performs second scanning for irradiating the document with light at a second light quantity greater than the first light quantity subsequent to performing the first scanning.