Recording Device Skew Removal via Leading End Detection
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Solution Overview
Problem
Existing recording devices with roll bodies face challenges in accurately removing skew during the setting process without damaging the recording medium, due to the need for repeated back-and-forth movements which can lead to low skew removal accuracy and potential damage to the medium.
Innovation Solution
A recording device with a holding part for roll bodies, a rotation mechanism, transport rollers, a recording part, detection parts, and a control part that monitors the leading end of the recording medium and performs notifications to facilitate precise skew removal by feeding the medium an appropriate length before nipping it with the transport rollers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the user reciprocates the recording device back and forth many times to set the roll body, then the recording medium can be positioned, but the accuracy of skew removal is low and the recording medium may be damaged
Solution Approach 1:
The transport rollers perform a preliminary action by transporting the recording medium in the reverse direction before normal recording starts. This preliminary transport aligns the recording medium correctly, eliminating the need for repeated back-and-forth reciprocation by the user. The control unit automatically controls the transport rollers to move the medium backward, positioning it properly at the start position, thereby achieving accurate skew removal without damaging the medium through excessive manual handling.
2Measurement precision
If the transport rollers nip and transport the recording medium repeatedly for skew removal, then positioning can be achieved, but the recording medium may be damaged
Solution Approach 1:
The system performs skew removal as a preliminary action before the main recording process. The control unit detects the leading end position and automatically controls the transport rollers to transport the recording medium backward by a predetermined distance, achieving skew removal in one automated operation rather than through repeated nipping and transporting, thereby preventing damage to the recording medium.
Solution Approach 2:
The control unit automatically detects the position of the leading end and controls the transport rollers to perform skew removal without requiring repeated manual intervention. The system serves itself by automatically positioning the recording medium correctly through reverse transport, eliminating the need for the user to reciprocate the device multiple times, thus preventing damage while achieving accurate skew removal.
3Measurement precision
If the user manually positions the recording medium without automated detection, then the device structure can be simpler, but the skew removal accuracy is low
Solution Approach 1:
The control unit incorporates a detection mechanism that monitors the position of the leading end of the recording medium. Based on this feedback information, the control unit automatically controls the transport rollers to transport the medium backward by the appropriate distance, achieving accurate skew removal. The feedback loop ensures precise positioning without requiring complex manual operation procedures.
Solution Approach 2:
The system achieves accurate skew removal through automated detection and control. The control unit detects the leading end position and automatically performs the skew removal operation by controlling the transport rollers, eliminating the need for repeated manual reciprocation. This self-service approach improves accuracy while keeping the device structure relatively simple, as the automation replaces complex manual procedures with a straightforward detect-and-act sequence.
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
Enables easy and high-accuracy skew removal without damaging the recording medium by allowing the user to feed the medium appropriately before nipping, thus improving the accuracy and reducing the risk of damage during the skew removal process.
Implementation Method 1
a pair of transport rollers that transport the recording medium by nipping and rotating the recording medium
Data Source
AI summary
A recording device includes a holding part that holds a roll body of a recording medium, a rotation mechanism that rotates the roll body, a pair of transport rollers that transport the recording medium by nipping and rotating the recording medium, a recording part that performs recording on the transported recording medium, a first detection part that detects a leading end of the recording medium, and a notification part that notifies information, wherein whether or not the leading end is detected by the first detection part is monitored in a first monitoring operation in a state in which nipping by the pair of transport rollers is released, and when the leading end has been detected by the first detection part, a first notification operation of causing the notification part to notify that the leading end has been detected by the first detection part is performed.