Handheld Printer Image Length Adjustment via Movement Detection
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Solution Overview
Problem
Conventional hand-held printing apparatuses lack the ability to set and maintain a print area based on paper size, leading to printed images exceeding desired boundaries or falling outside the paper during printing.
Innovation Solution
Incorporating a movement amount acquiring device and a processor that adjusts the length of the print image along one direction to fit within a set print area, allowing the printer to operate within defined boundaries by reversing its scanning direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the printing apparatus allows printing in any position without paper size setting, then the ease of operation is improved, but the manufacturing precision deteriorates as the printed image may spread outside the desired print area or fall outside the sheet
Solution Approach 1:
The system performs preliminary actions by acquiring the print area information before printing begins, and pre-calculating the adjusted print image dimensions based on the detected print area size. This preparation ensures that the printing will remain within boundaries without requiring manual setup, thus maintaining ease of operation while achieving precision.
Solution Approach 2:
The system implements feedback by detecting the actual print area size during operation and using this information to dynamically adjust the print image dimensions. The movement amount acquiring device continuously monitors the printer's position and movement, providing real-time feedback that enables automatic scaling of the print image to fit within the detected print area, thereby ensuring printing precision without manual intervention.
2Manufacturing precision
If the print image length is adjusted based on movement amount, then the manufacturing precision is improved, but the device complexity increases due to additional processing requirements
Solution Approach 1:
The processor performs multiple functions: it acquires print area information, calculates adjusted print image dimensions, and controls the printing process. By consolidating these functions into a single processing unit that already exists in the handheld printer, the system achieves precision without adding separate dedicated devices or significantly increasing overall system complexity.
Solution Approach 2:
The system performs self-service by automatically acquiring print area information and adjusting the print image dimensions without requiring external intervention or complex additional hardware. The existing movement amount acquiring device and processor work together to autonomously determine the appropriate print image size based on detected print area, eliminating the need for manual measurement or setup procedures.
Data Source
AI summary
A printing apparatus includes a movement amount acquiring device which acquires a movement amount of the printing apparatus with respect to a printing medium, a printer which performs printing on the printing medium, and a processor.The processor adjusts a length of a print image to be printed on the printing medium to a value not exceeding a length of a print area set on the printing medium along a first direction, on the basis of the movement amount acquired by the movement amount acquiring device when the printing apparatus is moved relative to the print area along the first direction, and performs control such that the print image with its length adjusted is printed on the printing medium when the printing apparatus is moved relative to the print area along a second direction different from the first direction.