Liquid Supply Device Temperature Control Sedimentation
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Solution Overview
Problem
Liquid supply devices face inefficiencies in managing sedimentation of components in ink or similar liquids, leading to unnecessary flowing operations due to temperature-induced changes in sedimentation velocity, resulting in wasted resources and energy.
Innovation Solution
A liquid supply device equipped with a temperature detection system and operation control mechanism that adjusts flow conditions, such as flow velocity and time, in response to temperature changes to optimize liquid circulation and discharge, thereby minimizing unnecessary operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ink is discharged through the liquid ejecting head based only on time measurement of low flow velocity time, then the sedimenting components can be suppressed from being too much sedimented, but the ink flowing operation is performed more than necessary when the temperature of the ink lowers, causing waste of ink and energy
Solution Approach 1:
The patent applies parameter changes by introducing temperature as a control parameter for the ink flowing operation. The operation control portion adjusts the flowing operation based on temperature detection, changing the operational parameters (time, frequency) according to temperature conditions. This resolves the contradiction by enabling the system to adapt the flowing operation to actual temperature conditions, preventing both over-flowing (energy waste) and under-flowing (sedimentation)
2Reliability
If the ink flowing operation is performed frequently to prevent sedimentation, then the hue of the ink can be maintained, but the energy is wasted unnecessarily
Solution Approach 1:
The patent implements feedback control by using the temperature detection portion to monitor ink temperature and feeding this information to the operation control portion. The control system adjusts the flowing operation frequency and duration based on the detected temperature, creating a closed-loop control that optimizes energy usage while maintaining ink quality. This feedback mechanism prevents both excessive flowing (energy waste) and insufficient flowing (hue inconsistency)
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 suppresses unnecessary liquid flowing operations by adapting to temperature-induced changes in sedimentation conditions, ensuring efficient ink supply and reducing energy waste.
Implementation Method 1
a temperature detection portion that can detect the temperature of at least part of the liquid in the liquid supply path
Implementation Method 2
a liquid flowing portion that is operated to cause the liquid to flow through at least part of the liquid supply path
Implementation Method 3
the ink contains sedimenting components (pigment particles, for example) that are higher in specific gravity than solvent of the ink and sedimented in the solvent
Data Source
AI summary
Provided is a liquid supply device that includes a liquid storage portion that stores liquid containing sedimenting components which are sedimented in solvent, a liquid supply path that extends from the liquid storage portion to a liquid ejecting portion and through which the liquid to be supplied to the liquid ejecting portion can flow, a liquid flowing portion that is operated to cause the liquid to flow through at least part of the liquid supply path, a temperature detection portion that can detect the temperature of at least part of the liquid in the liquid supply path, and an operation control portion that controls an operation of the liquid flowing portion in correspondence with a detected temperature of the liquid, which is detected by the temperature detection portion, such that a flow condition of the liquid in the liquid supply path changes.