Resin Regulating Blade Fixing Method for Developing Devices
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Solution Overview
Problem
Resin-made regulating blades in developing devices face fluctuations in the gap magnitude due to deformation under load, affecting the consistency of developer distribution during image formation.
Innovation Solution
A method of fixing the regulating blade to a resin-made developing device frame using an adhesive, applying a first force to the blade and a second force to the mounting portion, and curing the adhesive while maintaining these forces to ensure stable attachment and minimize deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a resin-made regulating blade is fixed to a resin-made developing device frame using adhesive, then the device can be manufactured with ease and cost-effectiveness, but the gap magnitude between the image bearing member and the regulating blade fluctuates due to deformation under load
Solution Approach 1:
The patent applies preliminary action by pre-loading the regulating blade with a first force and the mounting portion with a second force during the adhesive curing process. This preliminary application of forces ensures that the adhesive bonds the components in a pre-stressed state that compensates for operational deformation, thereby maintaining gap consistency without requiring complex post-manufacturing adjustments.
Solution Approach 2:
The patent utilizes parameter changes by controlling the magnitude and direction of forces applied during adhesive curing. By adjusting the first force applied to the regulating blade and the second force applied to the mounting portion, the patent optimizes the bonding state to prevent deformation under operational load, thus maintaining manufacturing precision while using simple adhesive bonding.
2Manufacturing precision
If forces are applied to the regulating blade and mounting portion during adhesive curing, then deformation is suppressed and gap consistency is improved, but the fixing process becomes more complex
Solution Approach 1:
The patent applies preliminary action by pre-loading the regulating blade with a first force and the mounting portion with a second force during the adhesive curing process. This preliminary application of forces ensures that the adhesive bonds the components in a pre-stressed state that compensates for operational deformation, thereby maintaining gap consistency without requiring complex post-manufacturing adjustments.
Solution Approach 2:
The patent utilizes parameter changes by controlling the magnitude and direction of forces applied during adhesive curing. By adjusting the first force applied to the regulating blade and the second force applied to the mounting portion, the patent optimizes the bonding state to prevent deformation under operational load, thus maintaining manufacturing precision while using simple adhesive bonding.
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 method effectively suppresses fluctuations in the gap magnitude between the image bearing member and the regulating blade, maintaining consistent developer distribution and improving image formation quality.
Implementation Method 1
fixing the regulating blade to a mounting portion of a developing device frame with an adhesive
Data Source
AI summary
A method of fixing a regulating blade made of a resin material includes an adhesive applying step of applying an adhesive onto a mounting portion; a first force applying step of applying a first force to the regulating blade so that the regulating blade is urged against the mounting portion; a second force applying step of applying a second force to the mounting portion so as to support the mounting portion; and a fixing step of fixing the regulating blade to the mounting portion by curing the adhesive applied on the mounting portion in the adhesive applying step in a state that the first force is applied to the regulating blade in the first force applying step and that the second force is applied to the mounting portion in the second force applying step.