Roll Holder Locking and Tension Control for Recording Sheets
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Solution Overview
Problem
In recording apparatuses where the holder is not sufficiently fixed to the winding core, the driving force is not adequately transmitted to the roll, leading to inadequate sheet tension and compromised image recording quality.
Innovation Solution
A recording apparatus with a locking mechanism that switches between locked and unlocked states for the holder, along with a detection unit to monitor tension and a control unit to apply prescribed tension, ensuring proper fixation and conveyance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the holder is not sufficiently fixed to the winding core, then the structure is easier to assemble or disassemble, but the driving force transmission becomes insufficient and sheet tension is inadequate
Solution Approach 1:
The locking mechanism performs a preliminary locking action when the holder is installed on the winding core, automatically securing it in a locked state without requiring separate manual locking operations. This ensures reliable driving force transmission from the start of operation.
Solution Approach 2:
The system detects the locked/unlocked state of the holder and provides feedback through notifications to the user. This feedback mechanism ensures that the holder is properly fixed before operation begins, maintaining reliability of driving force transmission.
2Ease of manufacture
If the holder is not sufficiently fixed to the winding core, then the assembly process is simpler, but the sheet tension application becomes inadequate affecting recording quality
Solution Approach 1:
The locking mechanism is designed to automatically lock the holder to the winding core during the assembly process itself, eliminating the need for separate complex locking procedures. This preliminary locking action ensures precise sheet tension application is achieved through simple assembly.
Solution Approach 2:
The locking mechanism is self-activating during assembly, automatically securing the holder without requiring additional manual operations. This self-service feature maintains manufacturing precision while keeping the assembly process simple.
3Adaptability or versatility
If the holder slides with respect to the winding core, then the structure allows for adjustment or removal, but the driving force from the driving unit is not sufficiently transmitted to the roll
Solution Approach 1:
The locking mechanism provides dynamic state switching between locked and unlocked conditions. When locked, power transmission is efficient; when unlocked, the holder can be adjusted or removed. This dynamic capability maintains both adaptability and power transmission efficiency as needed.
Solution Approach 2:
The system detects whether the holder is locked or unlocked and provides feedback notifications. This feedback ensures that the system operates in the appropriate state (locked for power transmission, unlocked for adjustment), maintaining both adaptability and power efficiency.
Data Source
AI summary
A recording apparatus includes: a holder that is attached to a winding core of a roll around which a sheet is wound; a locking mechanism that switches between a locked state in which the holder is fixed to the winding core and an unlocked state in which the holder is not fixed to the winding core; a support unit for rotatably supporting the holder; a conveyance unit for conveying the sheet pulled out from the roll; a detection unit for detecting an amount related to a tension applied to the sheet; a control unit for performing drive control of rotation of the holder and driving of the conveyance unit so as to apply a prescribed tension to the sheet pulled out from the roll supported by the support unit; and a notification unit for making a notification based on a detected value of the detection unit during the drive control.