Dynamic Detector Positioning for Media Load Detection
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Solution Overview
Problem
The existing printing apparatuses face increased costs when both full-load detectors are required for attached and unattached optional devices, as they need to detect different maximum loading amounts, leading to inefficiencies and potential overloading issues.
Innovation Solution
A printing apparatus with a detector that moves from a first position to a second position based on the attachment of optional devices, such as a sub-tray or joint mechanism, allowing a single detector to effectively detect media loads in both states without increasing costs, by adjusting its position to accommodate the changed loading conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single detector is provided, then cost is reduced, but the detector cannot accurately detect full load in both attached and unattached states
Solution Approach 1:
The detector is designed to move dynamically between a first position when the optional device is not attached and a second position when the optional device is attached. This dynamic repositioning allows the single detector to accurately detect full load conditions in both states, resolving the contradiction between using a single detector (lower cost) versus multiple detectors (higher accuracy for both states).
Solution Approach 2:
The detector's position parameter is changed based on the attachment state of the optional device. By adjusting the detector's location between two positions corresponding to different loading scenarios, the system enables one detector to perform the detection function that would otherwise require two separate detectors, thus reducing cost while maintaining detection accuracy.
2Measurement precision
If detectors for both attached and unattached states are provided, then detection accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The single detector is designed with multi-functionality to perform full load detection in both attached and unattached states. By incorporating the ability to move between two positions, the detector serves multiple detection purposes, eliminating the need for separate detectors for each state and thereby reducing device complexity.
Solution Approach 2:
The detector transitions dynamically between positions based on the optional device's attachment state. This dynamic capability allows one detector to replace what would traditionally require two static detectors, reducing the number of components while maintaining comprehensive detection coverage for both scenarios.
3Device complexity
If the detector position is fixed, then device simplicity is maintained, but the detector cannot adapt to changed loading conditions
Solution Approach 1:
The detector is designed with dynamic repositioning capability, moving from a first position when the optional device is not attached to a second position when it is attached. This dynamic adaptation allows the detector to respond to changed loading conditions, resolving the contradiction between maintaining simple fixed configuration and achieving adaptability to different states.
Solution Approach 2:
The system incorporates feedback based on the optional device's attachment state to automatically reposition the detector. This feedback mechanism enables the detector to adapt its position according to the current loading conditions, ensuring accurate detection while maintaining relatively simple overall device configuration.
Data Source
AI summary
A printing apparatus includes: a recording section that performs recording on a medium; a discharge tray on which the medium subjected to recording by the recording section is loaded; a detector that detects the medium loaded on the discharge tray; and an attachment section to which a sub-tray is attached, in which the detector is located at a first position and detects the medium loaded on the discharge tray in a state in which the sub-tray is not attached, is located at a second position and detects the medium in a state in which the sub-tray is attached, and moves from the first position to the second position in accordance with the sub-tray being attached to the attachment section.