Hinged Print Head Assembly for Single-Sided to Duplex Conversion
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Solution Overview
Problem
The high cost and wastage of purchasing and maintaining duplex thermal printers, as users often need to upgrade from single-sided to duplex printing capabilities, leading to increased initial costs and unused apparatus.
Innovation Solution
A detachable print head assembly that can convert a single-sided printer into a duplex printer by including a bracket with a hinged print head, elastic element, and transition socket, allowing for easy connection and disconnection, enabling flexible configuration between single-sided and duplex printing modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a duplex thermal printer is purchased to enable future duplex printing needs, then duplex printing capability is achieved, but the initial purchasing cost increases and apparatus utilization is low at the earlier stage
Solution Approach 1:
The print head assembly is divided into a detachable module that can be separately installed or removed from the printer body. This segmentation allows the printer to be sold initially without the duplex module (lower cost), and the module can be added later when duplex capability is needed, avoiding premature cost increase while maintaining adaptability.
Solution Approach 2:
The detachable print head assembly is designed with universal compatibility to work with the printer body in both single-sided and duplex configurations. The same module can serve different printing modes depending on installation, making the system multi-functional and adaptable to changing user needs without requiring separate devices.
2Adaptability or versatility
If a single-sided thermal printer is purchased initially and a duplex printer is purchased later when duplex printing is needed, then duplex printing capability is achieved, but money is spent on purchasing apparatus again and the single-sided printer is left unused
Solution Approach 1:
The printer system is designed with dynamic reconfigurability through the detachable print head assembly. Users can start with a single-sided configuration and dynamically add the duplex module when needed, transforming the existing single-sided printer into a duplex printer rather than purchasing a separate device, thereby eliminating apparatus wastage.
Solution Approach 2:
The duplex functionality is extracted as a separate detachable print head assembly that can be independently installed or removed. This extraction allows the duplex capability to be added to an existing single-sided printer without replacing the entire device, preventing the need to discard the original printer and avoiding apparatus wastage.
3Adaptability or versatility
If a detachable print head assembly is implemented to enable conversion between single-sided and duplex printing, then apparatus utilization improves and cost wastage is reduced, but the device complexity increases
Solution Approach 1:
The print head assembly is segmented into modular components (bracket, print head, elastic element, transition socket) that can be independently manufactured and assembled. This segmentation simplifies the complexity by breaking down the detachable mechanism into manageable standard parts rather than a complex integrated system.
Solution Approach 2:
The elastic element automatically provides biasing force to maintain contact between the print head and paper pressing roller, and the transition socket automatically aligns and connects with the plug. These self-service features eliminate the need for complex manual adjustment mechanisms, reducing device complexity while maintaining the detachable functionality.
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
Enables users to conveniently convert between single-sided and duplex printing without additional initial costs, reducing apparatus wastage and facilitating maintenance by allowing the print head assembly to be easily detached and reconnected as needed.
Implementation Method 1
an elastic element, which biases towards the print head so as to make the surface of the heating element of the print head have a tendency to extend outside the window
Data Source
AI summary
A print head assembly and a printer using the same are disclosed. The print head assembly includes: a bracket, a print head and an elastic element. The bracket includes a first bracket body having a cavity and a lid covered on the opening of the cavity. A window is opened on the first bracket body. The print head is accommodated in the cavity of the first bracket body and hinged to the first bracket body via a first rotary shaft. The surface of a heating element of the print head is matched with the window and faces an outside paper pressing roller. The elastic element biases towards the print head so as to make the surface of the heating element of the print head have a tendency to extend outside the window. The print head assembly is capable of being detached as a whole, thus the requirements of performing single-sided printing and duplex printing in the same printer is achieved.