Duct Unit Pressure Adjustment for Inkjet Airflow Stability
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Solution Overview
Problem
Inkjet recording devices face issues with air flow disturbances due to mismatched exhaust capacities between the exhaust equipment and the recovery fan, leading to unstable air flow conditions.
Innovation Solution
A recording device with a duct unit that includes a pressure difference adjustment mechanism, utilizing a feeding unit to supply gas and a suction unit to manage air flow, coupled with a duct configuration that adjusts pressure differences and includes a filter to handle foreign materials, ensuring stable air flow even when exhaust capacity exceeds suction capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the exhaust capacity of the exhaust equipment is greater than the exhaust capacity of the recovery fan, then the exhaust equipment can effectively discharge air, but the air flow inside the device created by the recovery fan may be disturbed by the discharge of air by the exhaust equipment
Solution Approach 1:
A pressure difference adjustment unit is introduced as an intermediary component between the recovery fan and the exhaust equipment. This unit actively manages the pressure difference between the device interior and exterior, mediating the interaction between the recovery fan's air flow and the exhaust equipment's air discharge, thereby preventing air flow disturbance while maintaining high exhaust capacity
Solution Approach 2:
The system dynamically adjusts the pressure difference parameter between the device interior and exterior using the pressure difference adjustment unit. By changing this pressure parameter, the system optimizes the air flow conditions to prevent disturbance from the exhaust equipment while maintaining effective air recovery, resolving the contradiction between exhaust capacity and air flow stability
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 reduces air flow disturbances and maintains stability by adjusting pressure differences and filtering out contaminants, ensuring consistent performance and preventing contamination of the medium.
Implementation Method 1
A pressure difference adjustment unit is provided in the duct unit, the pressure difference adjustment unit being configured to adjust a pressure difference between a pressure inside the duct unit and a pressure outside the duct unit
Data Source
AI summary
A printer includes a recording unit, a glue belt, a feeding unit, a suction unit, and a duct unit. The recording unit performs recording on a medium. The glue belt includes a support face capable of supporting the medium. The feeding unit feeds air toward the support face. The suction unit sucks air flowing from the support face. Air discharged from the suction unit flows through the duct unit. The duct unit is provided with an opening portion that adjusts a pressure difference between a pressure inside the duct unit and a pressure outside the duct unit.