Toner Container Contact Alignment Using Movable Connectors
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Solution Overview
Problem
The challenge in image forming devices is accurately positioning electrical contacts of replaceable units, such as toner cartridges, to ensure reliable communication with the device controller, which is crucial for proper operation and efficient data exchange.
Innovation Solution
The solution involves a movable electrical connector on the image forming device and a replaceable unit with an alignment guide that guides the electrical connector into alignment during insertion, using biased mechanisms to ensure precise mating of electrical contacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the electrical connector is fixed on the frame, then the structure is simple, but the positioning accuracy between replaceable units and the image forming device deteriorates
Solution Approach 1:
The electrical connector is designed to be movable rather than fixed, allowing it to dynamically adjust its position. The connector can move along guide rails in both longitudinal and lateral directions, enabling it to self-align with the replaceable unit's electrical contacts during insertion, thereby improving positioning accuracy without requiring complex fixed positioning mechanisms.
Solution Approach 2:
An alignment guide is introduced as an intermediary component between the replaceable unit and the electrical connector. The alignment guide includes guide rails that mediate the interaction between the two components, guiding the connector's movement and ensuring accurate alignment during the insertion process, thus resolving the positioning accuracy issue.
2Manufacturing precision
If the electrical connector is movable, then the positioning accuracy improves, but the reliability of the connection deteriorates
Solution Approach 1:
The alignment guide performs preliminary alignment action before the electrical contacts make final contact. By guiding the connector along predefined paths using guide rails during the insertion process, the system ensures that the electrical contacts are properly aligned before engagement, thereby maintaining connection reliability while benefiting from movable positioning.
Solution Approach 2:
The electrical connector is designed to self-align with the replaceable unit's electrical contacts through its movable structure and guide rails. The connector automatically adjusts its position during insertion without requiring external intervention, ensuring reliable connection while maintaining positioning accuracy through self-service alignment mechanisms.
3Manufacturing precision
If the alignment guide is added, then the positioning accuracy improves, but the device complexity increases
Solution Approach 1:
The alignment guide serves multiple functions: it guides the longitudinal movement of the connector, provides lateral alignment, and ensures proper orientation during insertion. By consolidating these multiple alignment functions into a single component structure with guide rails, the system achieves high positioning accuracy without proportionally increasing device complexity.
Data Source
AI summary
An assembly for an image forming device according to one example embodiment includes a first electrical connector positioned on and movable relative to a frame of the image forming device. A replaceable unit is removably installable in the image forming device. The replaceable unit includes a second electrical connector that is matable with the first electrical connector. The second electrical connector is positioned on a leading end of the replaceable unit along a direction of insertion of the replaceable unit into the image forming device. The replaceable unit includes an alignment guide on the leading end of the replaceable unit. The alignment guide of the replaceable unit is positioned to contact the first electrical connector and move the first electrical connector into alignment with the second electrical connector of the replaceable unit during insertion of the replaceable unit into the image forming device.