Dual Toner Cartridge Tube Layout for Stable Replenishment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image forming apparatuses face inefficiencies in toner replenishment systems, particularly in systems where toner cartridges need to be replaced or refilled, leading to complex and costly maintenance.
Innovation Solution
The image forming apparatus incorporates a dual-toner cartridge system with detachable first and second cartridges, each equipped with a toner chamber and air chamber, utilizing air pumps to convey toner through tubes with specific orientations and cross-sectional areas to optimize toner distribution to developer containers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If toner is conveyed through tubes with complex orientations and varying cross-sectional areas, then toner distribution efficiency is improved, but device complexity increases
Solution Approach 1:
The tube configuration is optimized locally with different cross-sectional areas at different positions along the tube. The tube has a larger cross-sectional area near the cartridge end and a smaller cross-sectional area near the developer container end, creating varying local properties that enhance toner flow characteristics and distribution efficiency without requiring complex external mechanisms
Solution Approach 2:
The tube is designed with flexible orientations including horizontal, downwardly inclined, and upwardly inclined sections at angles of 45 degrees or less. This dynamic configuration allows the tube to adapt to different spatial arrangements while maintaining effective toner conveyance through gravity-assisted flow in inclined sections and horizontal transport in level sections
2Length of moving object
If the first tube is made longer than the second tube with larger cross-sectional area, then toner conveyance distance is improved, but manufacturing cost increases
Solution Approach 1:
The tube parameters including length, cross-sectional area, and orientation angle are systematically varied along the tube length to optimize toner conveyance. The gradual change in cross-sectional area from larger at the cartridge end to smaller at the container end creates optimal flow conditions while using standard manufacturing tolerances and materials
3Reliability
If air pump discharge pressure is increased to convey toner through longer tubes, then toner supply reliability is improved, but energy consumption increases
Solution Approach 1:
The tube is configured with downwardly inclined and upwardly inclined sections at angles of 45 degrees or less, creating a near-horizontal effective transport path that minimizes gravitational potential energy changes. This equipotential-like configuration reduces the pressure differential required from the air pump, thereby lowering energy consumption while maintaining reliable toner conveyance over the required distance
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
This system enhances toner replenishment efficiency by simplifying maintenance and reducing waste, while ensuring consistent toner supply to the developer containers.
Implementation Method 1
a pump portion configured to discharge air, a first tube including a first end communicated with an interior of the first cartridge, and a second end communicated with an interior of the first toner accommodating portion, the first tube being configured to extend from the first end to the second end and to have the first toner pass therethrough
Data Source
AI summary
An image forming apparatus includes a first cartridge, a second cartridge, and an apparatus body include a pump portion, a first developer container, a second developer container, a first tube, and a second tube. A portion, of the first tube, which is longer than half a length from the first end to the second end is configured to extend in a horizontal direction, a downwardly inclined direction, or an upwardly inclined direction at an angle of 45 degrees or less with respect to the horizontal direction. The length from the first end to the second end of the first tube is longer than the length from the third end to the fourth end of the second tube. A cross-sectional area of an interior space of the first tube is larger than a cross-sectional area of an interior space of the second tube.