Handheld Printer One-Pass Mode for Image Alignment
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Solution Overview
Problem
Handy mobile printers often produce streaks or gaps in print images when printing large images in multiple passes due to overlapping or misalignment of partial images, as they are manually moved over the medium.
Innovation Solution
A printing program and method that determines if a print image is one-pass printable and adjusts the print plan size to the maximum size that can be printed in one pass, ensuring the image is printed within the printable area without deviation, thereby preventing streaks and gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the print image size is larger than the one-pass printable size, then the printing device can handle larger images, but the printing quality deteriorates due to streaks and gaps when printing in multiple passes
Solution Approach 1:
The patent segments the printing process into two independent modes: one-pass printing mode for high quality and multi-pass printing mode for handling larger images. The system determines the print plan size and automatically selects the appropriate mode, or allows users to manually select. This segmentation resolves the contradiction by providing different printing approaches for different image sizes rather than attempting to optimize a single approach.
Solution Approach 2:
The patent makes the printing mode dynamic by automatically determining whether to use one-pass or multi-pass printing based on the print plan size. The system dynamically adjusts the printing parameters and process based on the detected image dimensions, allowing optimal quality for small images while accommodating large images through multi-pass printing when necessary.
2Area of stationary object
If the printing device is manually moved to print large images in multiple passes, then larger images can be printed, but the alignment precision deteriorates causing overlapping or gaps between partial images
Solution Approach 1:
The patent segments the printing process into one-pass printing for small images (where alignment precision is maintained) and multi-pass printing for large images (where the printable area is expanded). By segmenting based on image size, the system accepts that multi-pass printing will have alignment challenges while providing the capability to handle larger images when needed.
Solution Approach 2:
The patent incorporates feedback mechanisms where the system determines the print plan size and automatically selects the appropriate printing mode. The movement measurement section provides feedback on the printing process, and the control section uses this information to manage the printing passes. This feedback loop helps mitigate alignment issues by continuously monitoring and adjusting the printing process.
3Manufacturing precision
If automatic determination of one-pass printable size is implemented, then printing quality is maintained, but the device complexity increases due to additional determination and control functions
Solution Approach 1:
The patent implements self-service by having the printing device automatically determine its own print plan size and select the appropriate printing mode without external intervention. The movement measurement section and control section work together to autonomously assess the image size and initiate the correct printing process, reducing the need for complex external control systems while maintaining high printing quality.
Solution Approach 2:
The patent uses parameter changes by automatically adjusting the printing mode (one-pass vs. multi-pass) based on the detected print plan size parameters. The control section changes the printing parameters dynamically according to the image dimensions, allowing the system to adapt to different printing scenarios without requiring complex manual configuration or external control systems.
Data Source
AI summary
A producing method for a print by a printing system including a printing device that is manually moved with respect to a medium to perform printing on the medium, the producing method including the printing system determining whether a print plan size of a print image is a one-pass printable size, which is a size printable in one pass by the printing device, and, when it is determined that the print plan size is not the one-pass printable size, the printing device printing the print image in the one pass.