Image Forming Apparatus With Guided Cartridge Replacement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image forming apparatuses face challenges in efficiently and conveniently replacing developer cartridges, particularly in maintaining the alignment and functionality of developing units and toner cartridges during the replacement process.
Innovation Solution
The image forming apparatus incorporates a rotary system with a storage unit and developing member that allows for removable attachment of developer cartridges, a frame to accommodate the rotary, a moving device for displacing cartridges, and a controller to manage the movement, along with a document transporter that rotates above the frame, ensuring seamless integration and operation of the cartridges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cartridge is made removably attachable for easy replacement, then the ease of operation is improved, but the alignment precision and functionality during replacement may deteriorate
Solution Approach 1:
The image forming apparatus is divided into separable modules: the cartridge (containing developer storage unit) can be independently removed from the main body, while the developing unit remains fixed. This segmentation allows easy cartridge replacement while maintaining precise alignment of the developing components through the frame structure that guides cartridge insertion.
Solution Approach 2:
The frame serves as an intermediary structure that accommodates both the rotary component and the cartridge. It provides standardized interfaces and alignment features that ensure precise positioning of the cartridge relative to the developing unit during attachment, while still allowing easy removal when needed.
2Ease of operation
If the moving device displaces the cartridge from inside the frame to outside, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The cartridge positioning system transitions from a static fixed position to a dynamic movable position. The moving device enables the cartridge to be displaced between an attached position (inside the frame) and a removed position (outside the frame), providing operational flexibility while using relatively simple mechanical movement mechanisms.
3Productivity
If the document transporter is positioned upstream of the rotary upstream end, then the operational efficiency is improved, but the area occupied by the apparatus increases
Solution Approach 1:
The document transporter is positioned in a spatial arrangement that utilizes the upstream direction relative to the rotary component. By placing the transporter's rotation center upstream of the rotary upstream end in the displacement direction, the system optimizes the workflow sequence without requiring excessive lateral or vertical space, effectively using the available dimensional space efficiently.
Data Source
AI summary
An image forming apparatus to which a cartridge is removably attachable includes a rotary including a storage unit that stores developer supplied from the cartridge and a developing member that forms a developer image by developing an electrostatic latent image on a photosensitive member using the developer stored in the storage unit; a frame that accommodates the rotary; a moving device that moves the cartridge from an attachment position to a displaced position in a displacement direction; a controller that controls the moving device; and a document transporter that is rotatable above the frame and that transports a document sheet. An upstream end of the rotary in the displacement direction is defined as a rotary upstream end. A rotation center of the document transporter is located upstream of the rotary upstream end in the displacement direction.