Developing Cartridge Integrated Detection and Drive Mechanism
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Solution Overview
Problem
The existing developing cartridges for imaging devices have complex structures due to the need for a driving force transmission mechanism, which hinders miniaturization and reduces design flexibility for the toggling block position.
Innovation Solution
A developing cartridge design that includes a detected device with an on-off assembly and a control member, which receives a driving force to switch between electrical connection and disconnection states, simplifying the structure and enhancing design freedom.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a driving force transmission mechanism is provided in the developing cartridge, then the toggling block can be driven to switch the switching device, but the structure becomes complicated and miniaturization is hindered
Solution Approach 1:
The patent combines the detected device with the driving force receiving member into an integrated assembly. The detected device is disposed on the driving force receiving member, eliminating the need for separate driving force transmission mechanisms. This merging reduces structural complexity while maintaining the switching function through direct coupling of the detected device to the driving force receiving member.
Solution Approach 2:
The driving force receiving member serves multiple functions: it receives driving force from the imaging device, houses the detected device, and directly transmits motion to switch the switching device. This multi-functionality eliminates the need for dedicated transmission mechanisms, simplifying the overall structure while enabling miniaturization.
2Reliability
If the switching device is fixed at a predetermined position, then the detecting device can reliably detect voltage, but the degree of freedom in designing the toggling block position is reduced
Solution Approach 1:
The patent makes the detected device movable relative to the housing through the driving force receiving member. The detected device can be driven to move between different positions, allowing the toggling block to be positioned flexibly within the housing while still achieving reliable voltage detection when the detected device contacts the electrode.
Solution Approach 2:
The driving force receiving member acts as an intermediary between the fixed housing and the movable detected device. It receives driving force and transmits it to move the detected device and toggling block to appropriate positions, enabling both reliable detection and design flexibility in component placement.
3Volume of moving object
If the developing cartridge is miniaturized, then the imaging device size is reduced, but the space for accommodating the driving force transmission mechanism is limited
Solution Approach 1:
The detected device is nested within or disposed on the driving force receiving member, which itself is integrated into the housing structure. This nested arrangement maximizes space utilization, allowing the cartridge to be miniaturized while accommodating all necessary components without requiring additional transmission mechanisms.
Solution Approach 2:
By merging the detected device with the driving force receiving member and integrating both into the housing, the patent eliminates separate transmission mechanisms. This consolidation reduces the total volume required for the cartridge while maintaining full functionality, enabling effective miniaturization.
Data Source
AI summary
A developing cartridge is configured to be detachably mounted on an imaging device including a detecting device. The developing cartridge includes a housing; a rotating member rotatably provided in the housing; a driving force receiving member configured to receive a driving force from the imaging device to drive the rotating member to rotate; and a detected device configured to be in electrical contact with the detecting device when the developing cartridge is mounted in the imaging device. When the rotating member is driven by the driving force receiving member to rotate, the detected device is switched between an electrical disconnection state and an electrical connection state. An imaging device having the developing cartridge is also provided.