Printer Sound Absorber Openings on Transport Path
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Solution Overview
Problem
Existing recording apparatuses face challenges in reducing noise escape from the apparatus body due to the placement of sound absorbers with openings, which can increase the volume of escaping sound despite improving sound absorption effects.
Innovation Solution
The recording apparatus incorporates a unit body with a sound absorber inside the apparatus body, featuring openings on the path-forming surface that communicate with the absorber, strategically positioned to absorb sounds generated during medium transport, including rustling sounds, and covers these openings with the absorber for enhanced effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If openings are provided in path parts closer to the outside of the apparatus body to improve sound absorption effect, then the sound absorption effect of the sound absorber is improved, but the volume of sound escaping from the openings increases
Solution Approach 1:
The invention changes the spatial arrangement by providing openings not on the outer surface of the apparatus body but on the path-forming surface of the unit body that is accommodated inside the apparatus body. This dimensional repositioning allows sound to be absorbed at the source location while preventing escape through the apparatus body exterior.
Solution Approach 2:
The unit body acts as an intermediary structure between the sound source (transport path) and the apparatus body exterior. By placing openings on the unit body's path-forming surface and covering them with sound absorber, the invention creates an intermediate absorption layer that prevents sound from reaching the apparatus body exterior.
2Object-affected harmful factors
If sound absorber is disposed inside the unit body at positions corresponding to openings, then the sound absorption effect is obtained efficiently, but the structure becomes more complex
Solution Approach 1:
The invention merges the sound absorber with the openings by having the sound absorber cover the openings from the inside of the unit body. This integration eliminates the need for separate sound absorption components and simplifies the overall structure while maintaining effective sound absorption.
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 configuration effectively reduces noise escape from the apparatus body by positioning sound absorbers to absorb sounds internally, particularly reducing rustling sounds during medium transport and sliding sounds from transport rollers, while maintaining the sound absorption effect.
Implementation Method 1
a sound absorber disposed inside the unit body... the sound absorber provided inside the unit body absorbs sound generated around the unit body
Data Source
AI summary
A printer includes an apparatus body having a recording head for performing recording onto a sheet of paper. The printer also includes a unit body that is accommodated inside the apparatus body and has a path-forming surface formed at least on a portion of the periphery of the unit body. The path-forming surface forms a medium transport path. The unit body includes a plurality of openings that are in communication with a sound absorber disposed inside the unit body. The plurality of the openings are provided at least on a portion of the path-forming surface.