Image Forming Apparatus Sensor Placement for Auto-Clear
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Solution Overview
Problem
The use of multiple detection sensors in image forming apparatuses increases costs, as they are often unnecessary in unimportant areas outside the user's operation range, making it difficult to detect the entire movement range of a user effectively.
Innovation Solution
Implementing a single low-cost detection sensor, such as an infrared or ultrasonic sensor, within the range of the operator or sheet discharger, and optionally a second sensor near a payment device, to reduce sensor installation and optimize auto-clear functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple detection sensors are installed to detect the entire movement range of a user, then the detection coverage is improved, but the cost of the image forming apparatus increases
Solution Approach 1:
The patent applies local quality by strategically positioning detection sensors only in areas where users actually perform operations (operator area and sheet discharger area). Instead of uniformly distributing sensors across the entire apparatus, the invention concentrates detection capability in locally important zones, thereby maintaining adequate detection coverage while reducing the total number of sensors and associated costs.
2Ease of manufacture
If a single low-cost detection sensor is used, then the cost is reduced, but the detection range is limited
Solution Approach 1:
The patent applies segmentation by dividing the detection task into multiple localized sensor positions rather than using one comprehensive sensor system. Detection sensors are segmented and placed at specific operational areas (operator area and sheet discharger area), allowing the use of simpler, lower-cost sensors at each position while collectively achieving adequate overall detection coverage through the combination of multiple localized detection zones.
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 configuration allows for cost-effective detection of users within the operational range, enabling optimal auto-clear operations while minimizing unnecessary sensor usage and reducing overall apparatus costs.
Implementation Method 1
a first detection sensor 300A disposed within a range of an area L1 of the operator 102
Implementation Method 2
a single-function detection sensor (e.g., an infrared sensor or an ultrasonic sensor) capable of detecting only the detection of a user
Data Source
AI summary
An image forming apparatus system includes an image forming apparatus and a coin device that receives a usage fee to use the image forming apparatus. The image forming apparatus may execute the auto-clear based on a detection of a detection sensor that detects a user. The detection sensor includes only a first detection sensor disposed in a range of an area of an operator.