Air Blowing Section Adjusts Pinching Force to Prevent Roller Marks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing recording apparatuses often suffer from transportation defects, such as roller marks, due to the pinching mechanism used to transport recording media, which can degrade recording quality.
Innovation Solution
A recording apparatus that incorporates a drive roller and an air blowing section, where the air blowing section adjusts the amount of air blown to control the pinching force on the recording medium, preventing transportation defects by optimizing the pinching force and tensile force, and includes sensors for detecting transportation amount, width, and oblique direction to adjust air flow accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a pair of rollers pinches the recording target medium for transportation, then the medium can be transported, but roller marks occur on the medium surface
Solution Approach 1:
The patent introduces an air blowing section that blows air onto the recording target medium to replace direct mechanical pinching by rollers. The air flow creates a cushion that lifts the medium slightly, allowing transportation without contact that would cause roller marks. This pneumatic approach eliminates the harmful mechanical pressure while maintaining transportation capability.
Solution Approach 2:
The patent replaces the mechanical pinching system (pair of rollers) with a pneumatic system (air blowing section). Instead of using mechanical force to grip and transport the medium, the system uses air flow to create a non-contact transportation mechanism, thereby eliminating the source of roller marks while maintaining transportation function.
2Reliability
If the pinching force is increased to prevent medium slipping, then transportation stability improves, but the risk of medium damage increases
Solution Approach 1:
The air blowing section provides a controllable pneumatic force that can be adjusted to achieve optimal transportation stability without excessive force. The air flow creates a distributed pressure field that holds the medium steady during transportation, eliminating the need for high mechanical pinching forces that could damage the medium.
Solution Approach 2:
The system controls the parameters of air flow (flow rate, pressure distribution) to optimize the cushion effect. By adjusting these pneumatic parameters, the system achieves stable medium positioning and transportation while keeping the force applied to the medium within safe limits, preventing damage.
3Manufacturing precision
If the air blowing section increases air flow to strengthen pinching force, then transportation accuracy improves, but energy consumption increases
Solution Approach 1:
The air blowing section optimizes air flow parameters (flow rate, pressure distribution) to achieve the minimum necessary air flow for stable and accurate medium transportation. By carefully controlling these parameters, the system achieves transportation accuracy without excessive energy consumption, finding the optimal balance point.
Solution Approach 2:
The system applies air flow only where and when needed for transportation, rather than continuously maximizing air flow. The air blowing section provides sufficient air flow to achieve the required transportation accuracy while avoiding excessive air flow that would waste energy, using only the necessary portion of the available pneumatic force.
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 solution effectively prevents transportation defects, ensures high accuracy in transporting recording media, and improves recording quality by eliminating static electricity and preventing ink misalignment, while reducing waste and damage to the medium.
Implementation Method 1
an air blowing section that is provided at a position opposite the drive roller and that blows air onto a second face of the recording target medium
Data Source
AI summary
A recording apparatus includes a transportation section that transports a recording target medium, and a control section that controls the transportation section. The transportation section includes a drive roller that is provided so as to be contacted with a first face of the recording target medium and that applies a forwarding force piece to the first face, and an air blowing section that is provided at a position opposite the drive roller and that blows air onto a second face of the recording target medium. The air blowing section performs an adjustment of an amount of air blown from the air blowing section itself under the control of the control section.