Movable Electrical Connector Assembly for Image Forming Devices
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Solution Overview
Problem
In image forming devices, accurately positioning electrical contacts between the device and replaceable units is crucial for reliable communication and operation, but existing solutions lack precise alignment mechanisms, leading to potential connectivity issues and operational inefficiencies.
Innovation Solution
An electrical connector assembly with a movable electrical connector that transitions between retracted and extended positions, synchronized with an access door, ensures precise engagement and disengagement with corresponding contacts on replaceable units, utilizing a camming member to facilitate reliable communication and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the electrical connector is fixed in position, then the structure is simple, but precise alignment with replaceable unit contacts cannot be ensured
Solution Approach 1:
The electrical connector is made movable rather than fixed, allowing it to transition between retracted and extended positions. This dynamic capability enables precise alignment with replaceable unit contacts during engagement while maintaining structural simplicity through the use of a spring mechanism that provides automatic positioning.
Solution Approach 2:
The electrical connector incorporates a spring mechanism that automatically positions the connector in the extended position for engagement. The spring provides the necessary force to ensure consistent alignment and contact pressure without requiring additional actuators or complex control systems.
2Reliability
If the electrical connector is always extended for engagement, then connection reliability is high, but accessibility during replacement is reduced
Solution Approach 1:
The electrical connector transitions between retracted and extended positions based on operational needs. During replaceable unit installation or removal, the connector retracts to provide clear access. During normal operation, the connector extends to ensure reliable electrical contact, thus achieving both accessibility and connection reliability.
Solution Approach 2:
The electrical connector periodically transitions between retracted and extended states synchronized with access door operation. When the access door opens for maintenance or replacement, the connector retracts. When the door closes and the replaceable unit is installed, the connector extends to establish connection, creating a periodic cycle that balances accessibility and reliability.
3Ease of operation
If the electrical connector is retracted during access door open, then user safety and accessibility are improved, but connection stability may be affected
Solution Approach 1:
The electrical connector's retraction and extension are synchronized with the access door's opening and closing through a camming mechanism. This periodic coordination ensures the connector is retracted only when the access door is open (improving accessibility) and extended when the door is closed and the replaceable unit is installed (ensuring connection stability).
Solution Approach 2:
The camming member acts as an intermediary between the access door and the electrical connector, translating the access door's positional changes into corresponding connector movements. This intermediary mechanism ensures that the connector's state is always appropriate for the current operational phase, maintaining both accessibility and connection stability.
Data Source
AI summary
An assembly for an image forming device includes an access door movable between an open position permitting replacement of a replaceable unit and a closed position. An electrical connector in the image forming device is movable between a retracted position and an extended position. In the retracted position the electrical connector is disengaged from a corresponding electrical connector of the replaceable unit when the replaceable unit is installed in the image forming device. In the extended position the electrical connector is engaged with the corresponding electrical connector of the replaceable unit. The electrical connector is operatively connected to the access door such that movement of the access door from the closed to the open position moves the electrical connector from the extended to the retracted position and movement of the access door from the open to the closed position moves the electrical connector from the retracted to the extended position.