Printer Damper Limiter for Label Peeling and Print Alignment
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Solution Overview
Problem
Linerless label printers face issues with label peeling due to the damper mechanism, especially when using label paper with large diameters, and the distance between the cutter and print head is significant, leading to printing defects and label misalignment.
Innovation Solution
A printer with a damper mechanism that includes a limiter to switch between limited and non-limited states, reducing tension on the paper and preventing label peeling by adjusting the damper's movement, using a tension spring and a locking mechanism controlled by a solenoid or manually.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the damper mechanism applies tension to the continuous paper, then printing alignment is improved, but label peeling occurs
Solution Approach 1:
The damper is designed to be movable rather than fixed, allowing it to dynamically adjust its position and the tension it applies to the continuous paper. The damper can move between a first position (applying tension for alignment) and a second position (reducing tension to prevent peeling), enabling the system to adapt tension levels based on operational requirements
Solution Approach 2:
The tension parameter applied to the continuous paper is changed by adjusting the damper's position. The system transitions between different tension states: high tension during printing for alignment, and reduced tension during cutting to prevent label peeling. This parameter change is controlled by switching between different damper positions
2Stability of the object's composition
If the damper applies large tension for large diameter rolled paper, then unwinding stability is improved, but label peeling occurs
Solution Approach 1:
The damper's movable design allows it to provide high tension during the unwinding and printing phases for stability, then dynamically transition to a low-tension state during the cutting phase. This dynamic adjustment prevents label peeling while maintaining unwinding stability when needed
Solution Approach 2:
The damper operates in periodic cycles: applying high tension during unwinding and printing, then reducing tension during cutting, and repeating this cycle. This periodic action between high and low tension states allows the system to maintain stability during critical phases while preventing harmful peeling during cutting
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
Prevents label peeling and maintains proper alignment during printing, ensuring high-quality output in both linerless and label printing modes by dynamically managing paper tension.
Implementation Method 1
a tension spring that biases the damper toward an initial position
Implementation Method 2
a solenoid or manually
Data Source
AI summary
According to an embodiment, a printer includes a damper that applies tension to continuous paper by moving a predetermined distance toward the continuous paper in a conveying path of the continuous paper to be conveyed. The printer further includes a limiter that switches a state of the damper between a non-limited state in which a moving distance of the damper is not limited and a limited state in which the moving distance of the damper is limited to reduce tension to be applied to the continuous paper.