Portable Printer Printhead Attachment for Large Surface Imaging
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Solution Overview
Problem
Existing methods for printing on large planar surfaces, such as windows and vehicles, are labor-intensive and lack flexibility, as they require skilled artists for hand-drawn images or replacement of entire printed sheets for modifications, and are inefficient in ensuring precise image placement and quality.
Innovation Solution
A portable printer with a movable printhead and attachment mechanism that allows ink ejection onto large surfaces in diverse orientations, enabling efficient and flexible printing, modification, and repair of images without the need for skilled artists or replacing entire image sheets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If a conventional inkjet or xerographic printing process is used to print on a sheet of vinyl or plastic, then the image can be produced with consistent quality, but the entire image sheet must be replaced for modifications and the application process is labor intensive
Solution Approach 1:
The printing system is segmented into a portable printer unit that can be detached and repositioned. This allows the printing function to be separated from the surface, enabling selective reprinting of specific areas rather than replacing entire sheets. The frame and printhead can be detached, moved to new positions, and reattached for targeted image updates.
Solution Approach 2:
The system transitions from a static printed sheet to a dynamic printing process. The portable printer can be repositioned and reattached to different locations on the surface, allowing modifications to be made by printing new images over specific areas rather than replacing the entire static sheet.
2Manufacturing precision
If a skilled artist is hired to hand-draw images on large surfaces, then high-quality artistic images can be created, but the process is time consuming and expensive
Solution Approach 1:
The manual mechanical process of hand-drawing by artists is replaced with an automated inkjet printing system. The portable printer uses computer-controlled ink ejection to create images, eliminating the need for skilled artists while maintaining or improving image quality and dramatically increasing production speed.
Solution Approach 2:
The system changes the parameters of image creation from manual artistic processes to automated digital printing. By controlling ink ejection parameters (droplet size, placement, timing), the system achieves consistent high-quality results without requiring artistic skill, while operating at much higher speeds than hand-drawing.
3Manufacturing precision
If the printhead is positioned close to the printing surface for direct imaging, then high-resolution printing is achieved, but the attachment mechanism must ensure precise and stable positioning
Solution Approach 1:
The attachment mechanism serves multiple functions: it secures the frame to the curved surface, positions the printhead at the correct distance for high-resolution printing, and allows for easy detachment and repositioning. This multi-functionality reduces the need for separate complex positioning systems while maintaining printing precision.
Solution Approach 2:
The frame acts as an intermediary between the portable printer and the curved surface. It provides a stable mounting structure that maintains the printhead at the optimal distance from the surface, enabling high-resolution printing without requiring direct complex positioning mechanisms between the printhead and the curved surface.
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 portable printer facilitates quick, high-quality image creation and modification on large surfaces, reducing labor and ensuring precise placement, while allowing for larger image sizes and three-dimensional printing capabilities.
Implementation Method 1
a printhead operatively connected to the frame and configured to eject ink onto a printing surface
Data Source
AI summary
A portable imaging device has been developed. The portable imaging device enables a printhead to be mounted to a surface to print an image on the surface. The printhead moves in two or more directions while mounted on the printing surface enable the printhead to eject ink onto the surface to form the image on the surface.