Printer Head Cover Rotation for Thermal Head Replacement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Users of thermal printers face difficulties in replacing the thermal head due to the need to apply force, which can lead to breakage, and lack of familiarity with the replacement process.
Innovation Solution
A printer design featuring a rotatable printer cover and head cover that exposes the connecting part, allowing for easy connection and disconnection of the thermal head without manual handling, using a gear mechanism to facilitate the process and minimize user burden.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user applies force to the print head holder to facilitate thermal head replacement, then the thermal head becomes easier to replace, but the print head holder or thermal print head may break
Solution Approach 1:
The device is divided into separate functional components: a print head holder that remains stationary and a connector that moves independently. This segmentation allows the connector to be manipulated without applying force to the print head holder, thus maintaining holder integrity while enabling easy thermal head replacement.
Solution Approach 2:
A connector serves as an intermediary component between the print head holder and the thermal head. The connector can be moved to connect or disconnect the thermal head without requiring force application to the print head holder itself, resolving the contradiction between ease of operation and structural reliability.
2Ease of operation
If the user holds the thermal print head with a hand while applying force to the print head holder, then the thermal head can be attached, but the complexity of the operation increases and users may make mistakes
Solution Approach 1:
By separating the connector from the print head holder, the system allows users to perform a single simple action (moving the connector) rather than coordinating multiple actions (holding thermal head while applying force to holder), reducing operational complexity and potential for error.
Solution Approach 2:
The connector is designed to automatically connect or disconnect the thermal head when moved, without requiring the user to manually hold or position the thermal head. This self-service mechanism simplifies the operation to a single intuitive motion.
3Ease of operation
If the print head holder is designed to be deformable for easy thermal head replacement, then the replacement process becomes simpler, but the risk of breakage increases
Solution Approach 1:
The system separates the deformable connector from the rigid print head holder. The connector can be easily moved for replacement operations, while the holder maintains its structural strength and does not need to be deformed, thus resolving the contradiction between ease of operation and structural strength.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A printer a housing, a printer cover that is rotatable relative to the housing about a first rotary axis, a thermal head configured to print on print medium, a connecting part capable of being connected to and disconnected from the thermal head, and a head cover that is rotatable about a second rotary axis being parallel to the first rotary axis, the head cover pivotally supported at the printer cover, the head cover rotating between a first position at which the head cover closes the connecting part and a second position at which the head cover does not close the connecting part to connect and disconnect the thermal head and the connecting part. The space is defined between the head cover located at the second position and the printer cover. The connecting part is exposed through the space.