Integrated Damper Head Cover for Compact Thermal Printer Design
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Solution Overview
Problem
Thermal printers face challenges in reducing their overall size, particularly in the front-back direction, due to the separate placement of the damper and thermal printhead, which limits their compactness and increases the paper feeding path length.
Innovation Solution
The damper is integrated with the head cover, allowing it to be positioned closer to the thermal printhead, reducing the distance between the paper container and the thermal printhead, and enabling a more compact design by combining the damper and head cover to apply tension to the paper directly on the paper feeding path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the damper is separately disposed on the cover element, then the damper can apply tension to the paper, but the entire length of the thermal printer in the front-back direction cannot be reduced
Solution Approach 1:
The damper is merged with the head cover to form an integrated assembly. The head cover serves as both a protective cover for the thermal printhead and as the mounting structure for the damper, eliminating the need for separate disposal of these components and reducing the overall front-back length of the printer
2Length of moving object
If the damper is separately disposed on the cover element, then the damper can be positioned independently, but a certain interval between the paper container and the thermal printhead must be ensured
Solution Approach 1:
By combining the damper with the head cover, the assembly can be positioned closer to the thermal printhead without compromising the damper's ability to apply paper tension. The integrated design allows the damper to function effectively while minimizing the interval between the paper container and thermal printhead
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 configuration reduces the thermal printer's size, especially in the front-back direction, improves dimensional accuracy, and allows for easier replacement of the damper mechanism, ensuring consistent paper tension and preventing paper jams.
Implementation Method 1
a spring (52b) is disposed between the damper plate (52a) and the support plate (52c)
Implementation Method 2
the damper is pressed on the paper fed on the paper feeding path between the thermal printhead and the paper container
Data Source
AI summary
A thermal printer includes a thermal printhead, a head cover configured to partially cover the thermal printhead, a paper container configured to house a paper, and a damper disposed on a paper feeding path between the thermal printhead and the paper container and configured to press the paper fed on the paper feeding path. The damper is combined with the head cover.