Shiftable Imaging Cartridge Drive Engagement Mechanism
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Solution Overview
Problem
Printers and toner cartridge manufacturers face challenges in engaging the printer drive system with imaging cartridges while allowing for smooth insertion and removal, as existing solutions often compromise on the rotational driving force transmission and ease of cartridge handling.
Innovation Solution
The design incorporates a rotational driving member and a cartridge guide with a moveable second cartridge portion that includes a drive receiving member, which can be translated and rotated to engage or disengage with the printer's rotational driving member, using mechanisms like cam bodies or ramped rails to facilitate easy installation and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed drive receiving member is used in the imaging cartridge, then rotational driving force transmission is reliable, but insertion and removal operations become complex and difficult
Solution Approach 1:
The drive receiving member is made movable relative to the cartridge frame, transitioning between a first position (disengaged) and a second position (engaged). This dynamic configuration allows the drive receiving member to be positioned for reliable driving force transmission during operation, and repositioned for easy insertion and removal, resolving the contradiction between reliability and ease of operation.
2Ease of operation
If a movable second cartridge portion is used, then ease of engagement and disengagement is improved, but device complexity increases
Solution Approach 1:
The cartridge is divided into a first cartridge portion (frame) and a second cartridge portion (containing the drive receiving member and imaging components). This segmentation allows the second cartridge portion to move independently relative to the first, enabling easy engagement and disengagement operations while keeping the overall structure manageable through modular design.
3Reliability
If the drive receiving member is always engaged with the rotational driving member, then rotational driving force transmission is maintained, but risk of inadvertent damage during cartridge replacement increases
Solution Approach 1:
The drive receiving member transitions between engaged and disengaged positions relative to the rotational driving member. During normal operation, it is engaged for reliable driving force transmission. During cartridge replacement, it automatically disengages, eliminating the risk of inadvertent damage to the rotational driving member while maintaining reliable transmission during printing operations.
Data Source
AI summary
An imaging cartridge installable in an image forming device. The image forming device includes a rotational driving member and at least one cartridge guide defining a guide path. The cartridge includes a first cartridge portion engageable with the at least one cartridge guide for movement along the guide path and a second cartridge portion coupled to the first cartridge portion. The second cartridge portion includes a drive receiving member configured for engagement with the rotational driving member and at least one of a drum unit assembly, a hopper, a developer roller, and a regulating blade. The second cartridge portion is moveable with respect to the first cartridge portion between a first position, in which the drive receiving member is not engageable with the rotational driving member, and a second position, in which the drive receiving member is engageable with the rotational driving member.