Drying Section Gas Intake Prevents Condensation Dripping
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Solution Overview
Problem
Existing drying devices that use electromagnetic waves to dry media after recording can lead to condensation of evaporated liquid, causing it to drip back onto the medium, which lowers recording quality.
Innovation Solution
A drying device and recording system that incorporate a drying section generating electromagnetic waves using high-frequency voltage and a gas intake section to take in evaporated gas, preventing condensation and ensuring efficient drying without quality loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electromagnetic waves are generated to dry the medium by boiling liquid, then drying efficiency is improved, but condensed liquid may drip onto the medium lowering recording quality
Solution Approach 1:
The patent extracts the evaporated liquid from the drying environment by introducing a gas intake section that removes vapor before it can condense. This separates the drying function (electromagnetic wave generation) from the condensation problem by actively removing the vapor phase product.
Solution Approach 2:
The patent introduces gas flow as an intermediary medium to transport evaporated liquid away from the drying region. The gas flow acts as a carrier that moves vapor from the medium surface to the gas intake section, preventing local saturation and subsequent condensation.
2Temperature
If gas containing boiled liquid cools, then condensation occurs, but this causes liquid to drip onto the medium
Solution Approach 1:
The patent performs preliminary removal of evaporated liquid by continuously introducing gas flow that carries vapor away from the drying region before condensation can occur. This preventive action stops the harmful condensation-dripping cycle at its source.
Solution Approach 2:
The patent converts the naturally occurring evaporation process, which leads to condensation, into a beneficial drying mechanism. By capturing the evaporated liquid through gas flow, the system uses the evaporation itself to enhance drying efficiency while preventing the harmful condensation effect.
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 solution effectively prevents condensation and ensures efficient drying of the medium, maintaining recording quality by efficiently managing evaporated gas and preventing it from cooling the drying region.
Implementation Method 1
a drying section that dries a medium onto which liquid was ejected, by generating an electromagnetic wave in response to application of a high-frequency voltage
Implementation Method 2
the medium can be dried by boiling liquid ejected onto the medium, regardless of whether or not water vapor is saturated around the medium
Implementation Method 3
a gas intake section that takes in gas evaporated from a medium onto which liquid has been ejected
Data Source
AI summary
A drying device includes a drying section that dries a medium onto which liquid was ejected by generating an electromagnetic wave in response to application of a high-frequency voltage, and a gas intake section that takes in gas. The drying section includes a first electrode, a second electrode arranged so as to surround the first electrode in plan view from a first direction toward a medium, a first conductor that includes a coil and that electrically connects a transmission line, which is configured to transmit a high-frequency voltage and the first electrode, and a second conductor that electrically connects the transmission line and the second electrode. The gas intake section includes a gas intake port that takes in gas evaporated from a medium onto which liquid has been ejected.