Liquid Supply Device Dynamic Speed Control for Channel Deterioration
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Solution Overview
Problem
Existing liquid supply devices, such as those in inkjet printers, face a shortage of liquid supply due to channel deterioration over time, leading to insufficient ink flow, which can result in image quality issues like blurring.
Innovation Solution
A liquid supply device with a movable portion and a controller that adjusts the moving speed and time to increase the liquid feed amount, ensuring consistent ink supply by monitoring and adapting to the feed rate through the channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the liquid supply device uses a fixed moving speed and time for the movable portion, then the control process is simple, but the liquid feed amount decreases over time due to channel deterioration
Solution Approach 1:
The patent applies dynamics by making the moving speed and moving time of the movable portion variable rather than fixed. The controller dynamically adjusts these parameters based on the liquid feed amount to compensate for channel deterioration. Specifically, when the liquid feed amount decreases due to channel aging, the system increases the moving speed or extending the moving time to maintain the required liquid supply amount, thus resolving the contradiction between reliability and device complexity.
2Quantity of substance
If the liquid supply device increases the moving speed or moving time to compensate for channel deterioration, then the liquid feed amount increases, but this requires complex monitoring and adjustment mechanisms
Solution Approach 1:
The patent implements feedback control by monitoring the liquid feed amount through detection means and using this information to adjust the moving speed and moving time of the movable portion. The controller receives feedback on the actual liquid feed amount and automatically adjusts the supply parameters to maintain optimal performance despite channel deterioration. This feedback mechanism enables the system to increase the liquid feed amount when needed while managing the complexity through automated control based on actual conditions.
3Manufacturing precision
If the device maintains constant liquid supply parameters, then the device complexity is low, but image quality deteriorates due to insufficient ink flow over time
Solution Approach 1:
The patent applies parameter changes by modifying the moving speed and moving time parameters of the movable portion based on the liquid feed amount. When channel deterioration causes reduced liquid flow, the system changes these parameters to increase the liquid feed amount and maintain adequate ink supply for high-quality image formation. This dynamic parameter adjustment ensures consistent image quality without requiring complex structural modifications to the supply device.
Data Source
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AI summary
A liquid supply device (2, 2a, 2b) includes a channel (21), a movable portion (22), and a controller (100). Liquid is to be fed through the channel (21). The movable portion (22) moves to feed the liquid. The controller (100) controls the movable portion. The controller (100) controls at least one of a moving speed and a moving time of the movable portion (22) in accordance with a liquid feed amount of the liquid fed through the channel (21) such that the liquid feed amount increases.