US 12,420,571 B2
Printing apparatus, control method, and storage medium
Kenji Kubozono, Tokyo (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on May 31, 2023, as Appl. No. 18/326,326.
Claims priority of application No. 2022-090284 (JP), filed on Jun. 2, 2022.
Prior Publication US 2023/0391112 A1, Dec. 7, 2023
Int. Cl. B41J 11/42 (2006.01); B41J 2/01 (2006.01); B41J 11/00 (2006.01)
CPC B41J 11/42 (2013.01) [B41J 2/01 (2013.01); B41J 11/0095 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A printing apparatus comprising:
a conveyance unit configured to convey a printing medium in a conveyance direction;
a printing unit configured to be in a position facing the printing medium conveyed by the conveyance unit and perform printing on the conveyed printing medium;
a support member configured to be in a position facing the printing unit and support an opposite surface that faces opposite of a surface of the conveyed printing medium facing the printing unit;
a detection unit configured to emit light in a direction toward a surface of the support member supporting the printing medium and output information indicating an amount of light that is reflected; and
a control unit configured to perform setting related to the output from the detection unit to set output from the detection unit such that a difference between a value indicating the output from the detection unit in detecting the light reflected from the support member and a value indicating the output from the detection unit in detecting the light reflected from the conveyed printing medium is equal to or greater than a predetermined magnitude, and configured to execute predetermined processing related to an end portion of the conveyed printing medium based on the set output from the detection unit,
wherein the predetermined magnitude is determined based on electric noise before the printing medium is conveyed by the conveyance unit.