Mobile Printer Stationary Paper Inversion
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Solution Overview
Problem
Conventional mobile printers are bulky and inefficient, as they require moving paper across the printing technology, which limits their portability and effectiveness in printing on stationary paper or materials.
Innovation Solution
A mobile printer design featuring a portable housing with a scanning device, carriage actuators, and a printing unit that includes an ink reservoir and output nozzle, allowing for precise movement and ink application on stationary paper or materials, along with optional use of a transfer sheet for altering pigmentation, enabling efficient printing and data capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional mobile printers move paper across the printing technology, then printing function is achieved, but the device becomes bulky and portability is reduced
Solution Approach 1:
Instead of moving the paper across the printing technology as in conventional printers, this invention inverts the approach by keeping the paper stationary and moving the printing unit across the paper. The printing unit is mounted on a carriage that can traverse the length of the paper, allowing the compact printing mechanism to reach different positions without requiring paper movement mechanisms.
Solution Approach 2:
The printer is divided into separate functional modules: a stationary housing containing control electronics and a movable carriage containing the printing unit. This segmentation allows the printing function to be separated from the paper handling function, enabling the device to remain compact while maintaining full printing capability on stationary paper.
2Volume of moving object
If conventional mobile printers are designed for portability, then device size is reduced, but printing efficiency and precision are worsened
Solution Approach 1:
The printing unit is mounted on a dynamically movable carriage that can be precisely positioned at different locations along the paper. The carriage actuators provide controlled movement, allowing the compact printing mechanism to access any position on the paper efficiently, thereby maintaining printing productivity despite the reduced device volume.
3Ease of operation
If conventional mobile printers move paper across the printing technology, then printing is achieved, but the device width exceeds paper width reducing effectiveness
Solution Approach 1:
The invention inverts the conventional printing approach by keeping the paper stationary and moving the printing unit across it. This allows the device width to be determined only by the paper width rather than requiring a wider printing mechanism, making the device width match the paper width exactly for optimal effectiveness.
Data Source
AI summary
A mobile printer for use with a piece of paper includes a computer memory, a processor in data communication with the computer memory, an input device in data communication with the processor, a housing configured to rest atop the paper, a carriage located inside the housing, carriage actuators for moving the carriage adjacent the paper, a scanning device coupled to the housing and positioned to obtain existing-indicia information, and a printing unit coupled to and movable with the carriage. The scanning device and the carriage actuators are in data communication with the processor. The printing unit includes an output nozzle and a supply passage for supplying ink from a reservoir to the output nozzle. Programming causes the scanning device to obtain the existing-indicia information, the computer memory to store the obtained existing-indicia information, the carriage actuators to selectively move the carriage, and the ink to pass from the output nozzle.