US 11,806,993 B2
Printing device
Hideki Matsunaga, Shiojiri (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Sep. 22, 2021, as Appl. No. 17/448,375.
Claims priority of application No. 2020-160631 (JP), filed on Sep. 25, 2020.
Prior Publication US 2022/0097421 A1, Mar. 31, 2022
Int. Cl. B41J 15/00 (2006.01); B41J 11/00 (2006.01); B65H 26/08 (2006.01); B41J 11/42 (2006.01); B41J 11/70 (2006.01); B41J 15/04 (2006.01)
CPC B41J 11/42 (2013.01) [B41J 11/0025 (2013.01); B41J 11/0075 (2013.01); B41J 11/0095 (2013.01); B41J 11/70 (2013.01); B41J 15/00 (2013.01); B41J 15/042 (2013.01); B65H 26/08 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A printing device comprising:
a roll paper holder configured to accommodate a first roll paper and a second roll paper having a width smaller than that of the first roll paper and configured to have a first side wall and a second side wall configured to contact side surfaces of the first roll paper;
a remaining amount detecting section configured to have a first projection projecting from the first side wall to detect a remaining amount of the first roll paper accommodated in the roll paper holder;
a partition portion configured to be installed in the roll paper holder and configured to have a third side wall configured to contact a side surface of the second roll paper when the second roll paper is accommodated in the roll paper holder; and
a detection assistance section configured to be provided in the partition portion and configured to have a second projection projecting from the third side wall in a state of being in contact with the first projection, wherein
the first projection includes
a first projection main body that is movably provided with respect to the first side wall and has a first protrusion, and
a first urging portion that urges the first protrusion in a direction of projecting to the roll paper holder,
the second projection includes
a second projection main body that is movably provided with respect to the third side wall and has a second protrusion, and
a second urging portion that urges the second protrusion in a direction of moving from the third side wall to the first side wall, and
the first protrusion abuts on the second projection main body in a state of projecting to the roll paper holder, and urges the second projection main body with the first urging portion in a direction against an urging force of the second urging portion.