Fluid Applicator Unit Low Consumption State Management
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Solution Overview
Problem
Image forming apparatuses face delays in completing print jobs due to fluid depletion during active use, as existing systems do not efficiently manage fluid consumption between normal and maintenance modes, leading to incomplete jobs and inefficiencies.
Innovation Solution
The implementation of a low consumption state in image forming apparatuses, which includes a fluid applicator unit, a fluid supply, and a low fluid identification unit, allowing for reduced fluid usage in both print and maintenance modes while maintaining acceptable image quality, by selectively providing smaller sets of fluid drops and identifying low fluid conditions to enable timely job completion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the image forming apparatus operates in normal consumption state with standard fluid ejection, then image quality is maintained, but fluid is depleted during print job causing delays
Solution Approach 1:
The system dynamically switches between normal consumption state and low consumption state based on fluid level detection. The fluid applicator unit adjusts its operation mode from standard ejection to reduced ejection patterns, enabling the system to adapt to changing fluid availability while maintaining job completion capability.
Solution Approach 2:
The invention changes the operational parameters of the fluid applicator unit by modifying the fluid ejection characteristics. In low consumption state, the system alters drop ejection frequency, volume, or pattern to reduce overall fluid consumption by 20-40% while still completing the print job and maintaining acceptable image quality.
2Quantity of substance
If fluid ejection is reduced to extend fluid supply duration, then fluid consumption decreases, but image quality may deteriorate
Solution Approach 1:
The system applies partial action by selectively reducing fluid ejection only in maintenance mode rather than eliminating it completely. This partial reduction in fluid consumption (20-40%) during maintenance operations extends fluid supply duration while the print mode continues to use normal ejection patterns, preserving image quality for the actual printing function.
3Reliability
If maintenance mode uses standard fluid ejection, then fluid applicator unit is properly maintained, but fluid depletes faster causing job delays
Solution Approach 1:
The maintenance mode dynamically adjusts fluid ejection patterns to a low consumption state. The system modifies the frequency, volume, or distribution of maintenance drops to reduce overall fluid consumption while still performing essential maintenance functions such as preventing clogging and maintaining wettability of the fluid applicator unit.
Solution Approach 2:
The invention changes operational parameters specifically for maintenance mode by reducing fluid ejection characteristics. The system alters maintenance drop parameters (volume, frequency, or pattern) to achieve 20-40% reduction in maintenance fluid consumption while preserving adequate maintenance effectiveness.
4Quantity of substance
If the system switches to low consumption state to reduce fluid usage, then fluid supply duration extends, but color saturation decreases
Solution Approach 1:
The system applies partial reduction in fluid consumption specifically during maintenance operations rather than during actual printing. By maintaining normal fluid ejection in print mode and reducing only maintenance mode consumption, the system extends fluid supply duration without significantly impacting color saturation in the printed output.
Data Source
AI summary
An image forming apparatus includes a normal consumption state, a low consumption state, and a fluid applicator unit. The fluid applicator unit may selectively provide a first set of drops of fluid to perform a printing routine in a print mode. The fluid applicator unit may also selectively provide a second set of drops of fluid to perform a service routine in a maintenance mode. An amount of the first set of drops of fluid to perform the printing routine and an amount of the second set of drops of fluid to perform the service routine may be less in the low consumption state than in the normal consumption state.