Dynamic Winding Length Control for Liquid Ejecting Apparatus
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Solution Overview
Problem
Existing liquid ejecting apparatuses face inefficiencies in winding band-shaped members due to fixed winding configurations, leading to excess winding when ink spread is minimal, as they do not account for varying temperature and humidity conditions affecting ink spread.
Innovation Solution
Incorporating a temperature/humidity information acquisition system to determine the optimal winding length of the band-shaped member based on detected environmental conditions, ensuring accurate absorption and minimization of excess winding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the band-shaped member is always wound up by a fixed amount, then the winding operation is simple and consistent, but the band-shaped member that does not absorb the ink is wound up in excess when the printer is used under an environment where the ink does not spread very much
Solution Approach 1:
The winding amount is made dynamic rather than fixed. The control portion adjusts the winding amount of the band-shaped member based on detected temperature and humidity information, allowing the system to adapt to varying environmental conditions and ink spread characteristics, thereby preventing excessive winding when ink spread is minimal
Solution Approach 2:
The system incorporates feedback mechanisms by detecting temperature and humidity information and using this data to determine the appropriate winding amount. This feedback loop enables the control portion to optimize the winding operation according to actual environmental conditions, reducing waste while maintaining effective cleaning
2Reliability
If the band-shaped member is wound up by a larger amount to account for ink spread, then ink absorption is ensured, but the band-shaped member is wound up in excess when ink spread is minimal
Solution Approach 1:
The system changes the parameter of winding amount based on environmental parameters (temperature and humidity). By detecting these parameters and adjusting the winding amount accordingly, the system ensures reliable ink absorption when needed while reducing winding amount to minimize maintenance time when ink spread is minimal
3Loss of substance
If the winding amount is adjusted based on temperature and humidity, then excess winding is reduced, but the system complexity increases
Solution Approach 1:
The control portion acts as an intermediary that processes temperature and humidity information and translates it into appropriate winding amount adjustments. This intermediary function adds minimal complexity while effectively reducing band-shaped member waste through intelligent control
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 approach allows for precise adjustment of winding length based on temperature and humidity, reducing excess winding and maintaining effective ink absorption, thereby optimizing maintenance efficiency and reducing maintenance time.
Implementation Method 1
a band-shaped member (60) that can absorb liquid
Data Source
AI summary
A liquid ejecting apparatus includes a liquid ejecting portion configured to eject a liquid, a liquid collection device including a band-shaped member configured to come into contact with the liquid ejecting portion to wipe a liquid attached to the liquid ejecting portion, and a winding portion configured to wind up the band-shaped member, a temperature/humidity sensor configured to acquire temperature/humidity information related to a temperature and a humidity around the liquid collection device, and a control portion configured to cause the band-shaped member to come into contact with the liquid ejecting portion to wipe the liquid, and then cause the winding portion to wind up the band-shaped member. The control portion determines, based on the temperature/humidity information acquired by the temperature/humidity sensor, a winding length of the band-shaped member wound by the winding portion after the band-shaped member wipes the liquid.