Movable Force Receiving Portion for Jam-Free Cartridge Mounting
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Solution Overview
Problem
The separation member in image forming devices is prone to jamming when the developing cartridge is pushed to rotate.
Innovation Solution
A process cartridge with a force receiving assembly that includes a driving side and a conductive side, featuring a first driving force receiving portion and a second driving force receiving portion, along with a separating force receiving portion, which allows the developing unit to rotate relative to the photosensitive unit, and includes a mounting guide and disassembly guide portion to facilitate stable movement and separation of the components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the developing cartridge is pushed to rotate during mounting, then the photosensitive drum and developing roller can be separated, but the separation member is prone to jamming
Solution Approach 1:
A movable tray is introduced as an intermediary component between the developing cartridge and the image forming device. The tray receives the pushing force during mounting and translates it into rotational movement of the developing cartridge through cooperative engagement with the separation member, preventing direct force application that causes jamming
Solution Approach 2:
The tray is designed to be movable rather than fixed, allowing it to dynamically adjust its position and orientation during the mounting process. This dynamic capability enables the tray to smoothly guide the developing cartridge into the correct rotational position without creating mechanical interference or jamming
2Device complexity
If the force receiving portion is fixed, then the structure is simple, but it interferes with the force applying component during mounting
Solution Approach 1:
The force receiving portion is changed from a fixed structure to a movable one that can shift position during mounting. This movement allows the force receiving portion to accommodate the force applying component without interference while maintaining structural simplicity through minimal design modifications
Solution Approach 2:
The force receiving portion is separated from the main cartridge body as a distinct movable component. This segmentation allows independent movement of the force receiving portion to avoid interference with the force applying component, while the rest of the cartridge structure remains simple and intact
Data Source
AI summary
Disclosed is a process cartridge detachably mounted to an image forming device having a tray and force applying components. The process cartridge has a process cartridge frame, a photosensitive unit, a developing unit rotatable relative to the photosensitive unit. The process cartridge frame has a driving side and a conductive side disposed oppositely along a length direction. The driving side has a first driving force receiving portion for rotating a photosensitive drum and a second driving force receiving portion for rotating a developing roller. The developing unit has a force receiving portion for receiving force of force applying components to rotate the developing unit relative to the photosensitive unit. When the process cartridge is pushed into to the image forming device, the force receiving portion move at least in a left-and-right direction and/or an up-and-down direction relative to the frame of the process cartridge.