Liquid Ejection Device Nozzle Wiping Absorbent Overflow
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Solution Overview
Problem
Existing liquid ejection devices face inefficiencies in the consumption of absorbent members due to the intervals at which liquid is ejected, leading to suboptimal absorption and potential overflow during flushing and pressurized discharge operations.
Innovation Solution
A liquid ejection device control method that adjusts the ejection intervals to be smaller than the predetermined intervals between nozzle arrays, with specific timing for flushing and pressurized discharge to optimize the use of the absorbent member, including overlapping regions for efficient liquid distribution and absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If liquid is ejected at predetermined intervals matching nozzle array spacing, then each nozzle array has dedicated absorption space, but the absorbent member is consumed inefficiently with potential overflow between ejection points
Solution Approach 1:
The patent applies periodic action by ejecting liquid from nozzle arrays at intervals smaller than the predetermined spacing, creating overlapping absorption zones on the absorbent member. This periodic ejection pattern ensures that liquid is deposited at multiple positions that overlap, allowing the absorbent member to efficiently consume liquid across a broader area and preventing overflow between ejection points.
2Loss of substance
If liquid ejection intervals are reduced below nozzle array spacing, then absorbent member consumption efficiency improves, but liquid distribution uniformity may deteriorate
Solution Approach 1:
The patent applies local quality by creating different liquid distribution characteristics in different regions of the absorbent member. By ejecting liquid at intervals smaller than nozzle array spacing, the patent creates overlapping absorption zones where some regions receive liquid from multiple nozzle arrays while other regions receive liquid from single arrays. This local variation in liquid distribution optimizes absorbent member consumption efficiency while maintaining overall uniformity through the overlapping pattern.
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 method enhances the efficient consumption of the absorbent member by ensuring that liquid is ejected at intervals that allow for optimal absorption, reducing the likelihood of overflow and improving the overall operational efficiency of the liquid ejection device.
Implementation Method 1
a wiping section which has an absorbent member configured to absorb liquid
Data Source
AI summary
A control method for a liquid ejection device including a liquid ejection head having a nozzle surface in which a plurality of nozzle arrays for ejecting liquid is formed and a wiping section which has an absorbent member, wherein the liquid ejection head and the wiping section are relatively movable in a scanning direction and in a sub-scanning direction; the nozzle arrays extend in the sub-scanning direction and are formed at predetermined intervals in the scanning direction; and the wiping section is set with, at different positions from each other, a wiping region in which the absorbent member wipes the nozzle surface and a receiving region in which the absorbent member receives liquid discharged from the liquid ejection head, the control method including performing flushing which includes ejecting liquid from each of the plurality of nozzle arrays at intervals in the scanning direction that are smaller than the predetermined intervals.