Rotatable Translatable Mechanical Flag for Printer Media Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional printer systems with mechanical flags for detecting print media are limited in sensitivity due to the restricted motion of these flags, which restricts the detection of media movement to specific directions, leading to inefficiencies in handling single or multiple sheets of print media.
Innovation Solution
A multi-directional mechanical flag system that can rotate, translate, or combine both movements, coupled with a sensor, such as an optical photo-interrupter, to detect the presence of print media from various angles, allowing for broader applicability in printer systems and other industrial settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a mechanical flag rotates around a fixed pivot axle, then the sensor can detect media movement in certain directions, but the sensitivity is limited to specific directions
Solution Approach 1:
The flag is designed to perform both rotational movement around a pivot axle and translational movement along the flag body, transitioning from a static single-degree-of-freedom system to a dynamic multi-degree-of-freedom system that can adapt its position to detect media approaching from various directions
Solution Approach 2:
The flag's motion is extended from one dimension (rotation only) to two dimensions by adding translation capability along the flag body, allowing the flag to sweep through a broader spatial envelope and detect media movement from multiple angles simultaneously
2Adaptability or versatility
If the flag motion is restricted to rotation only, then the mechanical structure is simple, but the detection coverage is limited
Solution Approach 1:
The patent combines rotational movement around the pivot axle with translational movement along the flag body into a single integrated mechanical flag assembly, merging two degrees of freedom into one compact structure that achieves multi-directional detection without requiring separate mechanical systems
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
Enhances the sensitivity and versatility of print media detection, enabling accurate sensing of single or stacked sheets and improving the operational efficiency of printer systems by allowing media to be picked from various directions, thus addressing the limitations of traditional flag-based detection systems.
Implementation Method 1
coupled with a sensor, such as an optical photo-interrupter, to detect the presence of print media
Data Source
AI summary
A mechanical flag for an object detection device includes a body portion, a head portion extending from the body portion, a tail portion extending from the body portion; and an elongate aperture disposed in the body portion and about which the mechanical flag is rotatable and translatable.