Printer Vibration Unit for Stable Liner-less Paper Drawing
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Solution Overview
Problem
Existing printers face challenges in stably drawing out continuous paper from roll paper, leading to issues such as compressed printing, white lines, and collisions within the printer.
Innovation Solution
A printer configuration that includes a storing unit for liner-less roll paper, a conveying unit to draw out and convey the continuous paper, and a vibrating unit that applies vibration to the contact point between the sheet portion and the roll paper, reducing the peeling force and facilitating stable drawing out.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the roll paper is stored freely in the hopper without a guide mechanism, then the device complexity is reduced, but the stability of paper drawing out deteriorates leading to compressed printing and white lines
Solution Approach 1:
The patent applies vibration to the contact point between the drawn-out continuous paper and the roll paper to reduce peeling force and prevent excessive adhesion. This mechanical vibration approach resolves the contradiction by maintaining simple hopper structure while ensuring stable paper drawing out through controlled vibration that prevents paper jamming and printing defects.
2Manufacturing precision
If vibration is applied to reduce peeling force, then the manufacturing precision is improved by preventing compressed printing and white lines, but the device complexity increases due to the vibrating unit
Solution Approach 1:
The vibrating unit generates mechanical vibration at the contact point between the continuous paper and roll paper, reducing peeling force and preventing excessive adhesion that causes compressed printing and white lines. This directly improves printing quality by ensuring smooth paper separation.
Solution Approach 2:
The vibration acts as an intermediary mechanism between the paper drawing-out process and the printing quality. By introducing vibration as a mediating factor at the critical contact point, the system achieves improved printing precision without requiring complex mechanical guide structures.
3Productivity
If the continuous paper is drawn out from the roll paper, then the productivity is improved by enabling continuous printing, but the roll paper may collide with internal structures due to uncontrolled movement
Solution Approach 1:
The vibration applied to the contact point reduces excessive adhesion and controls the drawing-out process, preventing the roll paper from moving uncontrollably and colliding with internal printer structures. This enables continuous printing operations while maintaining safety.
Solution Approach 2:
The vibration is applied in advance at the contact point to counteract excessive peeling force and prevent harmful collisions before they occur. This preliminary anti-action approach ensures that the roll paper is drawn out smoothly without causing damage to printer components.
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 enables stable drawing out of the continuous paper, preventing issues like compressed printing and white lines, while also reducing the risk of roll paper collisions and ensuring smooth conveyance to the thermal head.
Implementation Method 1
a vibrating unit configured to apply vibration to a contact point of the sheet portion and an external circumferential surface of the roll paper
Data Source
AI summary
A printer includes a storing unit configured to store liner-less roll paper formed by winding, in a roll shape, continuous paper including an adhesive surface on a rear surface of a printing surface. The printer includes a conveying unit configured to draw out one end of the continuous paper in the roll paper from the roll paper in an unwinding manner and convey a sheet portion that is the drawn-out continuous paper in a sheet form. The printer includes a vibrating unit configured to apply vibration to a contact point of the sheet portion and an external circumferential surface of the roll paper, the external circumferential surface adhering to the adhesive surface of the sheet portion.