Inkjet Maintenance Device Temperature Control via Segmented Supply
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing maintenance devices for inkjet heads cannot effectively control the temperature of humidified air for each inkjet head, leading to potential ink viscosity increases and ejection failures due to uneven moisture evaporation.
Innovation Solution
A maintenance device comprising multiple caps, supply parts, a sub-tank, and a replenishment part, where each cap is attached to an inkjet head and supplied with humidified air, and the sub-tank communicates with all supply parts to ensure uniform humidifying medium replenishment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If one tank and one pump are provided for all caps, then the device is simple and compact, but the temperature of humidified air cannot be controlled for each cap
Solution Approach 1:
The single tank is divided into multiple separate tanks, one for each cap. Each tank can be independently controlled and heated, allowing temperature control for each cap while maintaining a relatively simple overall structure. This segmentation enables independent temperature adjustment without requiring a completely separate system for each cap.
Solution Approach 2:
The system allows dynamic adjustment of temperature for each cap independently. Each cap's tank can be heated or cooled as needed based on the specific requirements of that cap, enabling flexible temperature control without fixed infrastructure for each component.
2Adaptability or versatility
If tanks with sensors and pumps are provided for each cap, then the humidifying medium can be replenished according to consumption rate, but the device becomes large in size and complicated
Solution Approach 1:
The system uses the natural consumption pattern of the humidifying medium to trigger replenishment. When the liquid level in a tank drops below a predetermined threshold, the pump automatically replenishes the tank without requiring complex sensors or external control systems. This self-regulating mechanism simplifies the structure while maintaining effective replenishment control.
Solution Approach 2:
The system incorporates liquid level detection (feedback mechanism) to trigger pump operation. When the liquid level in a tank falls below a predetermined level, the pump automatically activates to replenish the tank, creating a simple feedback loop that maintains adequate humidifying medium levels without complex control systems.
3Adaptability or versatility
If tanks with sensors and pumps are provided for each cap, then the humidifying medium can be replenished according to consumption rate, but the device becomes large in size
Solution Approach 1:
Multiple tank assemblies are integrated into a single compact housing structure. The tanks, pumps, and control mechanisms are combined in a space-efficient arrangement that minimizes the overall device volume while maintaining individual cap control capabilities and replenishment functionality.
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 device effectively suppresses ink viscosity increases by maintaining controlled temperature humidified air for each inkjet head, preventing ejection failures and clogging, while maintaining a compact and simplified configuration.
Implementation Method 1
pass air through the humidifying medium to generate a humidified air
Data Source
AI summary
A maintenance device maintains a head unit including a plurality of inkjet heads. The maintenance device includes a plurality of caps, a plurality of supply parts, one sub-tank, and a replenishment part. The caps are provided for the inkjet heads, and attached to nozzle surfaces of the inkjet heads. The supply parts are provided for the caps, store a humidifying medium, pass air through the humidifying medium to generate a humidified air, and supply the humidified air to the caps. The sub-tank stores the humidifying medium, is opened to atmosphere and communicates with all the supply parts. The replenishment part replenishes the humidifying medium to the sub-tank.