Printhead Heating Elements for Print Medium Cutting
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Solution Overview
Problem
Conventional printing systems require a dedicated cut mechanism and position detection system to accurately cut print media, increasing costs and complexity.
Innovation Solution
A printing apparatus that uses a printhead with heating elements to heat and cut a sheet-shaped print medium by generating specific heating pulses based on print data and cut information, allowing for precise cutting without a dedicated cut mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a dedicated cut mechanism and position detection system are provided to cut print medium at correct positions, then cutting precision is improved, but device complexity and cost increase
Solution Approach 1:
The heating elements of the printhead are made to serve dual functions: forming images on the print medium and cutting the print medium at desired positions. By controlling the heating temperature and duration, the same heating elements can selectively either develop color in the color development layers or melt the base material to create cut lines, eliminating the need for separate cutting mechanisms.
Solution Approach 2:
The invention utilizes parameter changes in the heating process to differentiate between image formation and cutting operations. By adjusting the heating temperature to exceed the melting point of the base material and controlling the heating duration, the system transitions from low-temperature color development to high-temperature cutting, enabling precise cutting without additional hardware.
2Adaptability or versatility
If a dedicated cut mechanism is provided to cut print medium, then cutting function is improved, but cost increases
Solution Approach 1:
The heating elements are designed to perform multiple functions including image formation and cutting operations. This multi-functionality reduces the need for additional dedicated cutting components, thereby lowering apparatus cost while maintaining cutting capability.
Solution Approach 2:
The cutting function is merged with the existing image formation system by utilizing the heating elements for both purposes. This consolidation eliminates the need for separate cutting mechanisms and reduces overall system cost.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate and cost-effective cutting of print media at desired positions, eliminating the need for additional cut mechanisms and improving operational efficiency.
Implementation Method 1
drive the plurality of heating elements by the second pulse generated by the second generating unit to apply heat beyond a melting point of the print medium to melt the print medium so as to cut the print medium on which the image is formed
Data Source
AI summary
An apparatus is configured to heat a print medium in which a plurality of color development layers that develop colors in accordance with heating are stacked in correspondence with a plurality of colors so as to form an image on the medium by causing a desired color development layer in the plurality of color development layers to independently develop the color. The apparatus includes a printhead, an input unit configured to receive a print job, a generation unit configured to generate image data and cut information for specifying a cut position, a second generation unit configured to generate first and second pulses for driving the print head, and a drive unit configured to drive the print head to form an image on the medium and apply heat beyond a melting point to melt the medium so as to cut the medium.