Carriage Movement Correction for Recording Power Transmission Switching
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Solution Overview
Problem
Existing recording devices face issues with power transmission failures due to component tolerances and assembly errors, leading to inconsistent switching between power transmission states.
Innovation Solution
A recording device with a cam mechanism and control system that adjusts the movement of a switching section to correct the reference movement amount of a carriage, incorporating a correction mode to ensure stable power transmission by adjusting the movement amount based on subtraction of adjustment values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed reference movement amount is used for carriage movement, then the power transmission switching is simple to control, but power transmission failures occur due to component tolerances and assembly errors
Solution Approach 1:
The system implements feedback by detecting whether power transmission switching was successful and using this information to adjust the reference movement amount. The control section monitors the switching outcome and modifies the movement amount in subsequent operations to ensure reliable power transmission despite component tolerances and assembly variations.
Solution Approach 2:
The reference movement amount is changed dynamically based on switching success detection. When switching fails, the system adjusts the movement amount parameter to compensate for tolerance accumulation, ensuring that the carriage moves the correct distance to engage the power transmission mechanism reliably.
2Reliability
If the carriage movement amount is increased to ensure pin engagement with the pin holding section, then power transmission switching becomes more reliable, but unnecessary time is consumed when the pin already engages correctly
Solution Approach 1:
The control section detects whether power transmission switching was successful and uses this feedback to adjust the reference movement amount. When switching succeeds, the movement amount is reduced to minimize unnecessary carriage movement and time consumption. When switching fails, the movement amount is increased to ensure proper pin engagement.
3Reliability
If component tolerances and assembly errors are reduced to eliminate power transmission failures, then switching reliability improves, but manufacturing cost and complexity increase
Solution Approach 1:
Instead of requiring tight component tolerances, the system changes the operational parameter (reference movement amount) to compensate for manufacturing variations. The control section adjusts the carriage movement distance based on detected switching failures, effectively compensating for tolerance accumulation without requiring higher manufacturing precision.
Solution Approach 2:
The system performs self-adjustment by automatically modifying the reference movement amount based on its own performance feedback. The control section monitors switching success and autonomously adjusts parameters to maintain reliable operation, eliminating the need for high-precision manufacturing and assembly.
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
The solution effectively suppresses power transmission failures by ensuring accurate switching between power states, reducing the likelihood of future failures and minimizing unnecessary time consumption.
Implementation Method 1
a cam mechanism configured to hold the switching section at the second position, the cam mechanism includes a cam having a cam surface and a cam contact section that moves integrally with the switching section and moves while contacting the cam surface
Data Source
AI summary
The control section of the recording device can execute a power switching step of moving the carriage based on the reference movement amount M, a retry step of performing the power switching step with an amount obtained by subtracting an adjustment amount ma from the reference movement amount M after the adjustment as a reference movement amount M when the power transmission section is not switched from the power non-transmission state to the power transmission state as a result of the power switching step, and a reference movement amount correction step of holding an amount obtained by subtracting the adjustment amount mc from the reference movement amount M after the adjustment as a new reference movement amount M when the power transmission section is switched from the power non-transmission state to the power transmission state as a result of the retry step.