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:
Jan. 07, 2020
Filed:
May. 25, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Hiroshi Koyama, Matsudo, JP;
Ryota Yasui, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes a first apparatus body, a first drum cartridge, a first guide portion, a lock unit, and a first erroneous insertion blocking portion. The lock unit is configured to lock a first cover member with the first apparatus body if the first drum cartridge with the first cover member is inserted by a first distance from a first insertion slot portion by being guided by the first guide portion. The first erroneous insertion blocking portion is configured to permit the first drum cartridge to be inserted into the first apparatus body and to block a second drum cartridge, functionally different from the first drum cartridge, to be inserted into the first apparatus body in a range exceeding a third distance shorter than a first distance from the first insertion slot portion.