Dynamic Sheet Size Selection for Borderless Roll Paper Printing
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Solution Overview
Problem
Existing printing methods struggle to perform borderless printing on roll paper widths not included in the standard list, leading to either incomplete printing or margin generation at the edges.
Innovation Solution
A method that allows for borderless printing by displaying and selecting various sheet sizes, transmitting sheet size information to a printing apparatus, and adjusting the printing method to accommodate custom or unsupported roll paper widths through extension or minimum margin printing, ensuring images are printed edge-to-edge without margins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a static list of printing methods corresponding to standard roll paper widths is used, then printing is reliable for standard sizes, but borderless printing cannot be performed for custom or non-listed paper widths
Solution Approach 1:
The printing system dynamically determines the printing method based on the actual sheet size input, rather than relying on a static pre-defined list. The determination unit selects between extension printing and minimum margin printing based on real-time conditions, enabling the system to adapt to any sheet width while maintaining reliable borderless printing performance.
Solution Approach 2:
The system changes the printing parameters (printing method selection) based on the sheet width parameter. When the sheet width falls outside the standard list, the system automatically adjusts to use minimum margin printing instead of extension printing, ensuring reliable operation across all sheet sizes without requiring manual configuration.
2Adaptability or versatility
If extension printing is used to print images larger than the sheet size, then borderless printing is achieved, but ink may be ejected outside the sheet and stain the platen
Solution Approach 1:
The system performs preliminary determination of the appropriate printing method before actual printing. By checking whether the sheet width matches a standard size in advance, the system prevents ink from being ejected outside the sheet by selecting minimum margin printing for non-standard sizes, thus avoiding platen staining before it occurs.
Solution Approach 2:
The system dynamically changes the printing method parameter based on sheet width detection. For standard sheet widths, extension printing is used to achieve borderless printing. For non-standard widths, the parameter switches to minimum margin printing, which adjusts the image size to match the sheet dimensions, preventing ink overflow while maintaining borderless appearance.
3Object-generated harmful factors
If minimum margin printing is used to prevent ink ejection outside the sheet, then platen staining is prevented, but images may have margins at the edges
Solution Approach 1:
The system dynamically switches between extension printing and minimum margin printing based on the sheet width. This dynamic selection ensures that borderless printing quality is maintained for standard sizes while platen protection is prioritized for custom sizes, achieving both goals across different scenarios.
Solution Approach 2:
The system applies different printing quality strategies to different sheet size categories. For standard sheet widths, full borderless printing with extension is applied. For custom sheet widths, minimum margin printing is applied locally to prevent platen staining. This localized quality adjustment ensures optimal results for each specific case.
Data Source
AI summary
In a case where a predetermined sheet size is selected by a user from a plurality of sheet sizes displayed on a display, an image larger than the predetermined size is printed. In a case where a sheet size is input by the user in an input screen displayed on the display, an image having a size corresponding to the input sheet size is printed.