Recording Material Detection Using Ultrasonic and Surface Imaging
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Solution Overview
Problem
Conventional methods for determining the type of recording materials, particularly grammage, are inaccurate due to interference from factors like whiteness, color, and fiber density, leading to potential misclassification and degraded image quality when using combined surface imaging and ultrasonic wave detection methods.
Innovation Solution
A recording material determination apparatus that uses a combination of a first detection unit for surface condition analysis via captured images and a second detection unit for grammage analysis using ultrasonic waves, with these units operating at different timings to minimize interference and enhance accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a combination of surface imaging and ultrasonic wave detection methods is used to determine recording material type, then detection accuracy is improved, but detection time increases and interference between methods occurs
Solution Approach 1:
The patent performs ultrasonic wave detection first to determine grammage, then uses surface imaging detection to determine surface condition. By establishing the detection sequence in advance, the system avoids interference between the two methods while maintaining high accuracy in recording material type determination.
Solution Approach 2:
The patent divides the detection process into two separate detection units: one for ultrasonic wave detection (grammage) and another for surface imaging detection (surface condition). This segmentation allows each detection method to operate independently without mutual interference, while the results are combined for comprehensive material type determination.
2Productivity
If ultrasonic wave detection and surface imaging detection are performed simultaneously, then detection efficiency is improved, but interference between detection methods degrades accuracy
Solution Approach 1:
The patent establishes a predetermined sequence where ultrasonic wave detection is performed first, followed by surface imaging detection. This preliminary arrangement of detection order eliminates interference between the two methods while maintaining high detection efficiency through automated sequential processing.
3Loss of time
If conventional single-method detection is used, then detection time is reduced, but determination accuracy is insufficient
Solution Approach 1:
The patent combines two different detection methods (ultrasonic wave detection and surface imaging detection) into a composite detection system. This composite approach leverages the strengths of each method to achieve high accuracy in grammage and surface condition determination, overcoming the limitations of single-method detection.
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 allows for precise determination of recording material type, reducing detection time and improving image quality by accurately setting image forming conditions based on both surface condition and grammage data.
Implementation Method 1
a first detection unit that detects a characteristic corresponding to a surface condition of a recording material based on a captured image of a surface of the recording material
Implementation Method 2
a second detection unit that detects a characteristic corresponding to a grammage of the recording material based on an ultrasonic wave detected via the recording material by irradiating the recording material with an ultrasonic wave
Data Source
AI summary
A recording material determination apparatus includes a first detection unit configured to detect a characteristic corresponding to a surface condition of a recording material based on a captured image of a surface of the recording material, a second detection unit configured to detect a characteristic corresponding to a grammage of the recording material based on an ultrasonic wave detected via the recording material by irradiating the recording material with an ultrasonic wave, and a conveyance unit configured to convey the recording material. The first detection unit and the second detection unit are located opposite each other with respect to the conveyance unit.