Embodiments of the present disclosure are directed to embodiments of a locking mechanism having a door with an interior facing surface and an exterior facing surface, a handle assembly comprising a handle that is selectively repositionable between a locked handle position and an unlocked and latched handle position, an engagement bolt coupled to the handle assembly and slidably mounted to the interior facing surface of the door, a biasing member coupled to the engagement bolt, wherein the biasing member applies a force to the engagement bolt biasing the engagement bolt in an inward direction, and a lock with a lock housing and a locking bolt that is selectively repositionable between a locked position to inhibit translation of the engagement bolt and an unlocked position to allow translation of the engagement bolt. The handle is biased toward the unlocked and latched handle position with the locking bolt in the unlocked position.

An ink cartridge for an inkjet printer includes a bottom face and a front face; an ink interface on the front face of the ink cartridge for connection to a cartridge receiving structure; a guide interface in the bottom face for guiding the cartridge along a straight line during insertion into the cartridge receiving structure for connecting the ink interface; a latch track disposed in the bottom face of the ink cartridge to guide a latch of the cartridge receiving structure; a latch stop disposed in the latch track for engaging the latch, where the latch track comprises a locking track and an unlocking track to accommodate movement of the latch with respect to the latch stop, the locking track being at least partly separate from the unlocking track; and a latch guide for redirecting the latch towards the locking track, rather than the unlocking track.

Embodiments described herein are directed to locking mechanisms for security cabinets. In one embodiment, the locking mechanisms for security cabinets provide a visual indication of whether the security cabinet is locked or unlocked. The security containers include a handle assembly that is coupled to the locking mechanism. The handle assembly may be positioned in at least three positions corresponding to the security container being locked and latched; being unlocked and latched; and being unlocked and unlatched. Because the handle assembly is positioned in these plurality of positions that correspond to the lock and latch status of the locking mechanism, indication of the lock and latch status of the locking mechanism may be understood by visual inspection.

An ink cartridge for an inkjet printer includes a bottom face and a front face; an ink interface on the front face of the ink cartridge for connection to a cartridge receiving structure; a guide interface in the bottom face for guiding the cartridge along a straight line during insertion into the cartridge receiving structure for connecting the ink interface; a latch track disposed in the bottom face of the ink cartridge to guide a latch of the cartridge receiving structure; a latch stop disposed in the latch track for engaging the latch, where the latch track comprises a locking track and an unlocking track to accommodate movement of the latch with respect to the latch stop, the locking track being at least partly separate from the unlocking track; and a latch guide for redirecting the latch towards the locking track, rather than the unlocking track.

An ink cartridge for an inkjet printer includes a bottom face and a front face; an ink interface on the front face of the ink cartridge for connection to a cartridge receiving structure; a guide interface in the bottom face for guiding the cartridge along a straight line during insertion into the cartridge receiving structure for connecting the ink interface; a latch track disposed in the bottom face of the ink cartridge to guide a latch of the cartridge receiving structure; a latch stop disposed in the latch track for engaging the latch, where the latch track comprises a locking track and an unlocking track to accommodate movement of the latch with respect to the latch stop, the locking track being at least partly separate from the unlocking track; and a latch guide for redirecting the latch towards the locking track, rather than the unlocking track.

A door latch assembly includes a housing, an inside and outside handle operably coupled with the housing, and a latch plunger. A latch cam is operably coupled with the inside and outside handles, and the latch cam further includes a crank arm slidably disposed against an inclined surface of an offset plunger leg operably coupled to the latch plunger. A biasing member urges the latch plunger to an extended position, wherein rotation of the inside or outside door latch handle in a first direction rotates the crank arm of the latch cam and displaces the plunger leg of the latch plunger and the latch plunger to a retracted position against the urging of the biasing member.