Liquid Discharger Dynamic Second Liquid Control
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Solution Overview
Problem
In integrated liquid cartridges for image forming apparatuses, the uneven consumption rates of first and second liquids lead to inefficient use, where one liquid is depleted before the other, necessitating premature replacement even if the remaining liquid can still be used to enhance image quality or prevent bleedthrough.
Innovation Solution
An image forming apparatus with a liquid discharger that includes a first liquid tank, a second liquid tank, and controllers to manage the discharge of both liquids based on remaining amounts, allowing the second liquid to be used sparingly when the first liquid remains, thereby optimizing liquid usage and reducing waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If an integrated liquid cartridge stores both first liquid and second liquid, then the configuration is simplified, but one liquid is depleted before the other leading to premature replacement
Solution Approach 1:
The system uses liquid remaining amount detectors to continuously monitor the levels of first and second liquids in the integrated cartridge. The condition determining unit compares these levels and provides feedback to the control unit, which adjusts the discharge amount of second liquid accordingly. This feedback mechanism ensures that the second liquid is discharged in an amount that matches the remaining first liquid, preventing premature depletion of either liquid and eliminating waste when one liquid is depleted before the other.
2Reliability
If the second liquid is discharged in normal amounts, then image quality is maintained, but the first liquid depletes faster requiring cartridge replacement
Solution Approach 1:
The system dynamically adjusts the discharge amount of second liquid based on real-time monitoring of liquid remaining amounts. The control unit modifies the discharge characteristics of the second liquid discharge head according to the condition determined by comparing remaining amounts of first and second liquids. This dynamic adjustment allows the system to maintain reliable image quality while extending cartridge life by preventing premature depletion of the first liquid.
3Object-affected harmful factors
If the second liquid is used to agglutinate components in the first liquid, then bleedthrough is prevented, but the second liquid is consumed faster
Solution Approach 1:
The system changes the discharge parameter (amount) of second liquid based on the remaining amount of first liquid. When the first liquid is nearly depleted, the system reduces or stops discharging second liquid, as determined by the condition determining unit comparing the remaining amounts. This parameter adjustment prevents unnecessary consumption of second liquid while maintaining bleedthrough prevention functionality when first liquid is still available.
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 ensures that the remaining first liquid is used efficiently, minimizing the amount of first liquid left when the second liquid is depleted, and allows for continued image formation while preventing bleedthrough, thus extending the life of the liquid cartridges and maintaining image quality.
Implementation Method 1
second liquid for agglutinating or precipitating one or more components contained in the first liquid
Implementation Method 2
second liquid for agglutinating or precipitating one or more components contained in the first liquid
Data Source
AI summary
A liquid discharger is provided, which includes a condition determining unit configured to, based on a remaining amount of first liquid detected by a first liquid remaining amount detector and a remaining amount of second liquid detected by a second liquid remaining amount detector, determine whether a predetermined condition is satisfied under a situation where the remaining amount of the second liquid is less than the remaining amount of the first liquid. When the condition determining unit determines that the predetermined condition is satisfied, a second liquid discharge head is controlled to discharge onto image formation areas the second liquid of an amount smaller than an amount of the second liquid to be discharged onto the image formation areas in a case where the condition determining unit determines that the predetermined condition is not satisfied.