Recording Unit Airflow Shielding Against Paper Dust Adhesion
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Solution Overview
Problem
The concern in existing recording apparatuses is that foreign matters such as paper dust adhere to the recording unit during the movement of the conveyance belt, leading to malfunctions.
Innovation Solution
A recording apparatus with a support unit that moves between facing and separated positions, equipped with an air flow generation unit to generate ejection air flows in specific directions to prevent dust from adhering to the recording unit during movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the support unit moves between the first position facing the recording unit and the second position separated from the recording unit, then the recording quality is maintained, but foreign matters such as paper dust may adhere to the recording unit causing malfunction
Solution Approach 1:
An air flow generation unit is introduced as an intermediary between the support unit and recording unit. This unit generates air flows that actively prevent dust particles from adhering to the recording unit during the movement of the support unit, thereby resolving the contradiction between maintaining recording quality and preventing dust adhesion.
Solution Approach 2:
The air flow generation unit operates in advance during the movement period of the support unit to create protective air flows before dust can adhere to the recording unit. This preliminary anti-action prevents the harmful effect of dust adhesion from occurring in the first place, while allowing the support unit to move freely between positions.
2Ease of operation
If the conveyance belt moves to support the medium, then the recording operation can be performed, but dust particles may float and adhere to the recording unit
Solution Approach 1:
The air flow generation unit serves as a mediator that creates a protective air environment around the recording unit during medium conveyance operations. The generated air flows counteract the dust-generating effect of belt movement, allowing easy medium conveyance while preventing dust contamination of the recording unit.
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
Prevents dust from adhering to the recording unit, thereby reducing the likelihood of malfunctions and maintaining recording quality.
Implementation Method 1
an air flow generation unit configured to generate at least an ejection air flow in a direction from the recording unit toward a position of the support unit present at the first position
Data Source
AI summary
The recording apparatus includes a recording unit configured to perform recording on a medium, a support unit capable of supporting the medium, a moving unit configured to move the support unit between a first position facing the recording unit and a second position separated from the recording unit, and an air flow generation unit configured to generate at least an ejection air flow in a direction from the recording unit toward a position of the support unit present at the first position in a period in which the support unit moves toward the first position or the second position.