Printer Scanner Unit Restrictor Mechanism for Panel Tilt Control
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Solution Overview
Problem
Existing recording apparatuses with both recording and reading functions face issues where the scanner unit unintentionally pivots when the operation panel is tilted, due to the force required for pivoting the panel upward, leading to operational inefficiencies and potential maintenance challenges.
Innovation Solution
Incorporating a restrictor mechanism that switches between a restricted state and a free state, preventing the scanner unit from pivoting until the panel unit is changed to a specific orientation, allowing controlled and intentional opening of the scanner unit, thereby enhancing operability and reducing accidental pivoting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the operation panel is configured to tilt by causing the operation surface to pivot upward, then the ease of operation is improved, but the scanner unit may unintentionally pivot due to the force applied
Solution Approach 1:
A restrictor mechanism is introduced as an intermediary between the operation panel and scanner unit. The restrictor includes a restrictor member that engages with a restrictor groove to prevent the scanner unit from pivoting when the operation panel is tilted, thereby eliminating the harmful effect while preserving the useful effect of easy operation.
2Ease of repair
If the scanner unit is configured to pivot for opening and closing, then the ease of maintenance is improved, but the scanner unit may pivot unintentionally during normal operation
Solution Approach 1:
The restrictor mechanism is designed to be dynamic rather than fixed. The restrictor member can automatically engage and disengage based on the state of the operation panel. When the operation panel is in the tilted position, the restrictor engages to prevent scanner unit pivoting. When the operation panel is returned to its original position, the restrictor disengages, allowing the scanner unit to pivot freely for maintenance purposes.
3Device complexity
If the operation panel and scanner unit share the same pivot mechanism, then the device complexity is reduced, but the operational reliability deteriorates due to unintended pivoting
Solution Approach 1:
The system is segmented into functionally independent components. The operation panel and scanner unit are separated such that the operation panel can tilt independently for operation, while the scanner unit remains stationary during this process. The restrictor mechanism creates a functional separation that allows each component to perform its intended function without interfering with or being adversely affected by the other.
Data Source
AI summary
A printer includes a restrictor that is configured to switch between a restricted state that restricts a scanner unit from pivoting in an opening direction from a closed state in which the scanner unit is closed with respect to the casing, and a free state that allows the scanner unit to pivot in the opening direction from the closed state, and that enters the restricted state when the panel unit is set to a first orientation and enters the free state when the panel unit in the first orientation pivots by a predetermined angle to be in a second orientation.