Print Material Transfer Mechanism Sensor System
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Solution Overview
Problem
Existing printing devices face challenges in accurately determining when the print material supply is full or overflowing, and when refilling is necessary, due to the inefficiencies of weight-based methods which are costly, inaccurate, and do not provide real-time information on the quantity of print material transferred or remaining.
Innovation Solution
A transfer mechanism with a sensor system that detects the movement of print material through a conduit or passageway, allowing for precise measurement of the quantity transferred and remaining, using components like sectioned wheels, turbines, and geometric gears, and communicating this information to a controller for accurate supply management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If weight-based methods are used to determine supply status, then the supply level can be detected, but the method is costly, inaccurate, and does not provide real-time information
Solution Approach 1:
The patent replaces weight-based detection with a mechanical transfer mechanism that uses a turbine or gear system. Print material flowing through the conduit drives the turbine/gear, and a sensor detects rotations to calculate quantity transferred. This substitution eliminates the need for expensive weight sensors while providing accurate, real-time measurement.
Solution Approach 2:
The patent introduces a turbine or gear as an intermediary mechanism between the print material flow and the sensor. The turbine/gear converts the flow of print material into rotational motion, which the sensor then detects. This intermediary enables indirect but accurate measurement of material quantity without directly weighing the supply.
2Reliability
If no real-time detection is used, then the device complexity is reduced, but the ability to prevent overfilling or underfilling is compromised
Solution Approach 1:
The patent implements a feedback system where a sensor continuously detects the rotation of the turbine or gear and communicates this information to a controller. The controller uses this real-time feedback to monitor the supply level and can restrict further transfers when the supply reaches predetermined levels, preventing both overfilling and underfilling.
Solution Approach 2:
The transfer mechanism itself generates the detection signal through its operation. As print material flows through the conduit, it naturally drives the turbine/gear, which in turn generates rotational signals detected by the sensor. The system uses its own operational motion for self-detection without requiring external measurement devices.
3Loss of information
If weight-based methods are used, then supply quantity can be measured, but real-time information on quantity transferred or remaining is not provided
Solution Approach 1:
The patent ensures continuous detection during the entire transfer process. As print material continuously flows through the conduit, it continuously drives the turbine/gear, which continuously generates rotational signals. This provides uninterrupted real-time information about the quantity being transferred, eliminating delays associated with periodic weight measurements.
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
Enables accurate determination of the quantity of print material transferred and remaining, preventing overfilling or underfilling, and ensuring optimal operation of the printing device by providing real-time status updates and restricting further transfers when the supply reaches a predetermined level.
Implementation Method 1
the transfer mechanism may include a turbine that rotates in response to a flow of the quantity of print material
Implementation Method 2
the transfer mechanism may include a sectioned wheel that rotates in response to a flow of the quantity of print material
Implementation Method 3
the transfer mechanism may include geometric gears that rotate in response to a flow of the quantity of print material
Data Source
AI summary
Example implementations relate to an apparatus to transfer a quantity of print material to a printing device through a transfer mechanism. In some examples, the apparatus includes a container including the quantity of print material, a transfer mechanism associated with the container, and a sensor associated with the transfer mechanism. In some examples, the sensor is to communicate to the printing device information about the transfer of the quantity of print material through the dispenser mechanism.