Printer Cut Mark Layout for Accurate Rewound Media Cutting
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Solution Overview
Problem
Existing printers face challenges in accurately cutting long sheets due to the medium being transported in opposite directions during half-cutting, leading to improper cutting, and there is a lack of standards for appropriately cutting a part of the medium in the width direction.
Innovation Solution
A printing device that includes a printing mechanism to print cut position and range marks on the medium, allowing for accurate cutting even when the medium is rewound in a roll shape, with a cutting mechanism that detects these marks to ensure precise cutting in the width and transport directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the medium is transported in opposite direction during half-cutting, then the medium can be processed, but the cutting accuracy deteriorates
Solution Approach 1:
The patent applies preliminary action by marking the medium with cut position marks and cut range marks before the actual cutting operation. These marks are printed on the medium in advance, allowing the cutting mechanism to accurately identify and cut the medium even when it is being transported in the opposite direction during half-cutting operations.
2Ease of operation
If the medium is rewound in a roll shape, then the medium can be stored and handled, but the cutting standard becomes unclear
Solution Approach 1:
The patent applies preliminary action by printing cut position marks and cut range marks on the medium before it is rewound. These marks remain visible even after the medium is wound into a roll shape, allowing the cutting mechanism to accurately identify the cut positions and ranges without needing to unwind or straighten the medium first.
Solution Approach 2:
The patent uses visual marks (cut position marks and cut range marks) that create distinct visual patterns on the medium. These marks serve as clear visual indicators that guide the cutting mechanism, making it easy to identify the exact positions and ranges where cutting should occur, even when the medium is in a rolled state.
3Manufacturing precision
If continuous data storage is required during cutting, then cutting accuracy can be maintained, but the device complexity increases
Solution Approach 1:
The patent applies copying by transferring cutting information from digital data to physical marks on the medium. Instead of continuously storing and processing digital data during the cutting operation, the patent creates physical cut position marks and cut range marks on the medium itself, which serve as a permanent copy of the cutting information and eliminate the need for continuous data storage during cutting.
Data Source
AI summary
A printing device is provided. The printing device prints a cut position mark for specifying a medium cut position that is a cut position of a medium in a medium transport direction at a position separated by a certain distance from each of multiple medium cut positions on an transport direction upstream side, and prints a first cut range mark disposed at a position corresponding to one end of the medium cut range that is a cut range of the medium in the medium width direction at the medium cut position and a second cut range mark disposed at a position corresponding to the other end of the medium cut range.