Patent ID: 7827570

Claim:
A cartridge tray supported to be movable relative to a frame, and capable of receiving a cartridge inserted thereinto, said cartridge tray comprising: a cartridge locking mechanism locking said cartridge to said cartridge tray; and a cartridge lock actuating mechanism that prevents said cartridge locking mechanism from acting when said cartridge is not inserted into said cartridge tray, and enables said cartridge locking mechanism to act to lock said cartridge to said cartridge tray when said cartridge is inserted into said cartridge tray, said cartridge lock actuating mechanism comprising: a protrusion capable of projecting into an interior of said cartridge tray; an urging member urging said protrusion to project into the interior of said cartridge tray; and a tab integrated with said protrusion, said tab preventing said cartridge locking mechanism from acting to lock said cartridge to said cartridge tray when said protrusion remains projecting into the interior of said cartridge tray, wherein, when said tab does not prevent said cartridge locking mechanism from rotating due to said protrusion being pushed out from the interior of said cartridge tray to an exterior of said cartridge tray by said cartridge when said cartridge is inserted into said cartridge tray, said cartridge locking mechanism acts to lock said cartridge to said cartridge tray, and wherein a plane, which is parallel to a rotation direction of said cartridge lock actuating mechanism, is perpendicular to a plane which is parallel to a rotation direction of said cartridge locking mechanism.