Mobile Printer One-Pass Printing to Prevent Streaks
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Solution Overview
Problem
Handy mobile printers face issues with streaks and gaps when printing large images in multiple passes due to overlapping or gaps between partial images, caused by measurement errors during manual movement.
Innovation Solution
A printing program and method that prompts users to designate a print plan size and notifies the one-pass printable size, allowing the printer to print in one pass to prevent streaks by reducing image size or using a printing device with a movement measuring section to compensate for deviations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the print image is printed in multiple passes by a manually moved printing device, then large images can be printed, but streaks and gaps occur due to overlapping or gaps between partial images
Solution Approach 1:
The system performs preliminary measurement of the medium's position and size using the image sensor before printing. Based on these measurements, the printing device calculates and determines the optimal printing path and parameters in advance. This preliminary action ensures that when printing in multiple passes, each partial image is precisely positioned to avoid overlapping or gaps, thereby maintaining print quality while enabling large area printing.
2Manufacturing precision
If the print image size is reduced to fit one pass, then printing quality improves, but the printable area is limited
Solution Approach 1:
The system transitions from a single-dimension constraint (one-pass printing limits width) to multi-dimensional solution by enabling printing in multiple passes across different positions. The image sensor measures the medium's boundaries, and the control unit plans a multi-pass printing path that covers the entire area. This dimensional expansion allows large area printing while maintaining quality by ensuring precise positioning in each pass through measurement-based path planning.
3Area of moving object
If multiple passes are used to print large images, then printable area increases, but measurement errors cause overlapping or gaps between partial images
Solution Approach 1:
The system employs continuous feedback through the image sensor that captures the medium's position and boundaries during manual movement. The control unit receives this real-time position information and dynamically adjusts the printing path and parameters for subsequent passes. This feedback mechanism compensates for measurement errors and manual movement variations, ensuring that partial images align precisely without overlapping or gaps, thereby enabling accurate large area printing.
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 prompting a user to designate a print plan size of a print image, printing the print image in the print plan size, and notifying a size of the print image printable in one pass by the printing device to the user before the print plan size is decided.