Recording Device Adhesive Belt Control for Take-Up Motor Sizing
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Solution Overview
Problem
Conventional recording devices require large capacity take-up unit motors to suppress take-up errors, especially when the roller diameter is small, due to the need for faster take-up speeds than conveyance speeds, which is inefficient and costly.
Innovation Solution
The recording device controls the take-up and movement of the adhesive belt based on the separation position of the recording medium, allowing for a lower capacity take-up unit motor by stopping the adhesive belt's movement when the medium is within a specific range, thus eliminating the need for faster take-up speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the take-up speed of the recording medium is made faster than the conveyance speed to suppress take-up errors, then take-up accuracy is improved, but the capacity of the take-up unit motor must be large
Solution Approach 1:
The invention dynamically adjusts the conveyance speed of the adhesive belt based on the separation position of the recording medium. When the medium is detected to be separated, the conveyance speed is reduced or stopped, allowing the take-up unit to operate at lower speed and capacity while maintaining synchronization and preventing take-up errors.
Solution Approach 2:
The invention uses sensors to detect the separation position of the recording medium and feeds this information back to the control unit. Based on this feedback, the control unit adjusts the conveyance speed of the adhesive belt accordingly, enabling the take-up unit to operate with lower capacity motor while maintaining accurate synchronization.
2Reliability
If the take-up speed is increased to prevent take-up errors, then take-up reliability is improved, but the motor size and operational costs increase
Solution Approach 1:
The system dynamically adjusts the conveyance speed based on real-time detection of medium separation. When separation is detected, the adhesive belt conveyance is slowed or stopped, allowing the take-up unit to operate at lower speed and reduced power consumption, while still maintaining reliable operation.
Solution Approach 2:
The invention changes the operational parameters (conveyance speed) of the adhesive belt based on the detected separation position. By reducing the conveyance speed parameter when separation is detected, the system maintains take-up reliability without requiring high power consumption motors.
3Productivity
If the adhesive belt continues to move during take-up, then conveyance continuity is maintained, but take-up errors occur more easily
Solution Approach 1:
The system dynamically adjusts the conveyance state of the adhesive belt based on the separation position detection. When the recording medium is detected to be separated, the adhesive belt conveyance is slowed or stopped, which prevents take-up errors while maintaining overall conveyance continuity during normal operation.
Solution Approach 2:
Using feedback from separation position sensors, the control unit adjusts the adhesive belt conveyance in real-time. This feedback mechanism allows the system to maintain conveyance continuity during normal operation while preventing take-up errors by stopping or slowing the belt when separation is detected.
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
This approach enables the use of a smaller capacity take-up unit motor while maintaining error suppression, reducing motor size and operational costs without compromising recording quality.
Implementation Method 1
the first sensor and the second sensor irradiate light from the direction intersecting the surface of the recording medium, and using the light reflected from the surface, detect that the recording medium has separated in relation to the adhesive belt
Data Source
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AI summary
The recording device includes an adhesive belt extending across a plurality of rotating bodies (3) configured to support and convey a recording medium (P), a first sensor (9) configured to detect that the recording medium (P) is separated relative to the adhesive belt in a first range (L1), a second sensor (10) configured to detect that the recording medium (P) is separated relative to the adhesive belt in a second range (L2) within the first range (L1), a take-up unit configured (8) to take up the recording medium (P), and a control unit configured to control the take-up unit (8) so as to take up the recording medium (P) when the first sensor (9) detects that a separation position of the recording medium (P) is within the first range (L1), and control the rotating body to stop movement of the adhesive belt when the second sensor (10) detects that the separation position of the recording medium (P) is within the second range (L2).