Movable Sensor on Contrast Roller for Multi-Indicator Detection
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Solution Overview
Problem
Printing devices face challenges in detecting multiple types of indicators on media, which requires separate sensors, increasing complexity and cost, and potentially leading to downtime due to the need for additional hardware and software retrofits.
Innovation Solution
A movable sensor apparatus on a roller with contrasting color sections is used to detect different types of indicators on a continuous web of media, allowing the processor to control processing by selectively highlighting or masking indicators based on their position and color, reducing the need for multiple sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate sensors are used to detect each type of indicator, then detection accuracy is improved, but device complexity and cost increase
Solution Approach 1:
A single sensor is designed to perform multiple detection functions by detecting different characteristics (transmitted light intensity, reflected light intensity, position) of the same media web, eliminating the need for multiple separate sensors while maintaining detection accuracy for various indicators including registration marks and process control marks
Solution Approach 2:
The patent combines multiple detection capabilities into one sensor system that can simultaneously or sequentially detect different types of marks on the media by analyzing light transmission and reflection properties, thereby reducing overall system complexity while preserving measurement precision
2Adaptability or versatility
If multiple sensors are installed to detect different indicators, then detection capability is improved, but manufacturing cost increases
Solution Approach 1:
One sensor is configured to detect multiple types of indicators (registration marks, process control marks, etc.) on the media web by analyzing different light interaction characteristics, providing versatile detection capability without the need to manufacture and install multiple separate sensors, thereby reducing manufacturing costs
3Adaptability or versatility
If additional sensors are added to detect multiple indicators, then detection versatility is improved, but downtime increases
Solution Approach 1:
By merging multiple detection functions into a single sensor system, the patent eliminates the need to install, configure, and integrate multiple separate sensors, thereby reducing the time the printing device must remain non-operational during sensor installation and setup while maintaining versatile detection capabilities
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 solution simplifies the detection process, reduces costs, and minimizes downtime by using a single sensor to detect multiple indicators, enhancing the operational efficiency of printing devices without the need for complex retrofits.
Implementation Method 1
A movable sensor apparatus on a roller with contrasting color sections is used to detect different types of indicators on a continuous web of media
Implementation Method 2
A movable sensor apparatus on a roller with contrasting color sections is used to detect different types of indicators on a continuous web of media
Data Source
AI summary
An apparatus for sensing indicators is disclosed herein. An example of the apparatus includes a roller over which a media passes, the roller including a first end that is dark in color and a second end that is light in color. The example of the apparatus also includes a sensor that is moveable between a first position over the first end of the roller and a second position over the second end of the roller. The sensor detects a first indicator on the media in the first position and a second indicator on the media in the second position. An example of a printing device is also disclosed herein. Modifications to and other examples of the apparatus for sensing and printing device are further disclosed herein.