Developing Cartridge Conductive Layout for Stable Power Transfer
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Solution Overview
Problem
Existing electro-photographic imaging apparatuses face issues with low power transmission efficiency and reliability due to small contact areas between the conductive assembly and the developing regulating member, leading to malfunctions and increased energy loss.
Innovation Solution
A developing cartridge design with a conductive assembly that does not overlap with the developing roller shaft, featuring a conductive member and a conducting member that extend along different directions, providing a larger contact area and improved power transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If direct abutment connection is used between conductive assembly and developing regulating member, then device complexity is reduced, but power transmission efficiency deteriorates due to small contact area
Solution Approach 1:
The conductive member extends in the second direction (width direction) rather than only in the first direction (length direction), changing the dimensional orientation of the contact area. This allows the conductive assembly and developing regulating member to overlap in the width direction, significantly increasing the contact area without adding complexity to the overall structure.
2Ease of manufacture
If direct abutment connection is used between conductive assembly and developing regulating member, then ease of manufacture is improved, but reliability deteriorates due to poor contact
Solution Approach 1:
By extending the conductive member in the width direction (second direction) to overlap with the developing regulating member, the contact area is significantly increased. This improved contact stability and reliability without complicating the manufacturing process, as the extended conductive member can be easily integrated into the existing conductive assembly structure.
3Device complexity
If small contact area is used between conductive assembly and developing regulating member, then device complexity is reduced, but current-carrying capacity deteriorates
Solution Approach 1:
The conductive member is designed to extend in the width direction (second direction) to overlap with the developing regulating member, thereby increasing the contact area. This enhanced contact area allows for higher current-carrying capacity without increasing the overall structural complexity of the developing cartridge.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances power transmission efficiency and reliability, reducing the risk of malfunctions and energy loss, while allowing for increased current-carrying capacity.
Implementation Method 1
a conducting member electrically connecting the conductive member and the developing regulating member
Data Source
AI summary
The present application relates to a developing cartridge detachably mounted in an imaging apparatus provided with a first power output member and a second power output member. The developing cartridge includes a housing, a developing member and a toner feeding member, which are rotatably provided in the housing, a developing regulating member in contact with the developing member, and an electrically conductive member, wherein the first power output member outputs a voltage higher than a voltage outputted by the second power output member; the housing can accommodate a developing; the developing member rotates about a rotation axis extending in a first direction; a second direction intersects the first direction; one end of the second direction is directed to the front of the developing cartridge, and the other end of the second direction is directed to the rear of the developing cartridge; and the developing member is located at the front.