The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 2022
Filed:
Jun. 02, 2021
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Wataru Yamaguchi, Nisshin, JP;
Yohei Hashimoto, Nagakute, JP;
BROTHER KOGYO KABUSHIKI KAISHA, Nagoya, JP;
Abstract
A cam transmits and blocks light emitted from a light emitting portion. The cam moves to: a first position at which first and second cartridges are attachable to and detachable from a housing; a second position at which a first development roller contacts a first photosensitive drum, the second position being a position at which the cam has moved in a first direction from the first position; and a third position at which the first development roller is separated from the first photosensitive drum and a second development roller is separated from a second photosensitive drum, the third position being a position at which the cam has moved in the first direction from the second position. During an initial operation, based on a detection result of the sensor, a controller determines which of the first position, the second position, and the third position the cam is located at.