Developer Container Drive Switching for Compact Image Forming Units
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Solution Overview
Problem
Existing image forming apparatuses require separate drive sources for air pumps and position restriction mechanisms, leading to increased size, increased component count, and higher costs, necessitating a larger apparatus body.
Innovation Solution
An integrated system where a single motor and movement mechanism controls both air pumps and position restriction mechanisms, allowing simultaneous operation and reducing the number of components, thereby reducing the apparatus size and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate drive sources are used for air pump and position restriction mechanism, then each component can be independently controlled, but the apparatus size and component count increase
Solution Approach 1:
The patent combines the air pump drive source and position restriction mechanism drive source into a single integrated drive unit. This drive unit can selectively transmit driving force to either the air pump or the position restriction mechanism through a switching mechanism, thereby reducing the total number of drive sources while maintaining independent control capability for both functions.
Solution Approach 2:
The integrated drive source is designed as a universal drive unit that can perform multiple functions by switching its output. It can drive the air pump for developer conveyance and also drive the position restriction mechanism for securing the developer container, making one component serve multiple purposes and eliminating the need for separate dedicated drive sources.
2Adaptability or versatility
If separate drive sources are used for air pump and position restriction mechanism, then each function can be driven independently, but the apparatus main body size increases
Solution Approach 1:
The patent merges the air pump drive source and position restriction mechanism drive source into a single integrated drive unit located within the developer container. This consolidation significantly reduces the space required in the apparatus main body, as the separate drive sources and their associated mounting spaces are eliminated, directly addressing the volume reduction goal.
Solution Approach 2:
The patent relocates the drive sources from the apparatus main body to the developer container itself. By moving the integrated drive unit to this separate component, the apparatus main body volume is reduced while the developer container assumes the role of housing the drive mechanisms, effectively distributing functions across different spatial dimensions.
3Ease of operation
If multiple drive sources are used, then both air pump and position restriction mechanism can be driven, but the component count and cost increase
Solution Approach 1:
The patent combines multiple drive sources into a single integrated drive unit that incorporates both the air pump motor and the position restriction mechanism motor. This merging reduces the component count and assembly complexity while maintaining the capability to drive both the air pump and position restriction mechanism independently through internal switching mechanisms.
Solution Approach 2:
The integrated drive source is designed as a multi-functional unit that can perform both air pump driving and position restriction mechanism driving. This universal drive component eliminates the need for separate dedicated motors and control circuits for each function, thereby reducing component count and overall system cost while preserving full operational capability.
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
The integrated system effectively reduces apparatus size and cost while providing both drive of an air pump and a position restriction mechanism, thereby reducing the apparatus size and component count.
Implementation Method 1
an air supply portion that supplies the air from the air receiving port of the developer container to the air chamber via the air supply passage
Implementation Method 2
a filter that allows passage of air and suppresses passage of the developer
Data Source
AI summary
A developer container detachably attached at a predetermined mounting position includes: a developer accommodating chamber, a filter that allows passage of air and suppresses passage of the developer, and an air chamber that is partitioned from the developer accommodating chamber by the filter, and switching between a first state and a second state can be made, the first state being a state in which a driving force of a motor is transmitted to an air supply portion that supplies the air to the air chamber, and is not transmitted to a movement mechanism that moves a restricting member between a restricting position for restricting movement of the developer container and an allowing position for allowing the movement of the developer container, and the second state being a state in which the driving force is transmitted to the movement mechanism and is not transmitted to the air supply portion.