Printing Device Roll Paper Length Reduction Controller
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Solution Overview
Problem
Current printing technologies do not effectively quantify or promote the reduction of roll paper consumption, particularly in devices that print on continuous media, and fail to encourage environmentally friendly printing practices.
Innovation Solution
A printing device equipped with a controller that reduces the length of roll paper printed by adjusting margins, barcode height, and line spacing, along with a calculator and display unit to quantify and display the reduction in roll paper length and area, and a system that communicates this information to a control device for further analysis and display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If the printing device uses conventional printing methods without reducing roll paper length, then the printing quality and completeness are maintained, but the roll paper consumption increases
Solution Approach 1:
The controller changes printing parameters including margin size, barcode height, and line spacing to reduce the printed length of roll paper while maintaining printing quality. The calculator computes the reduction amount based on these parameter changes, enabling paper consumption reduction without compromising printing completeness.
Solution Approach 2:
The system dynamically adjusts printing parameters based on the print command and computes the reduction in roll paper length in real-time. The display unit provides feedback to users about the reduction amount, creating a dynamic system that optimizes paper consumption while maintaining printing quality.
2Loss of substance
If the printing device reduces the printed length of roll paper, then the roll paper consumption decreases, but the user cannot easily know the reduction amount
Solution Approach 1:
The calculator computes the reduction amount in roll paper length, and the display unit provides feedback to users by displaying information about the reduction. This feedback mechanism enables users to easily understand the paper consumption reduction while the system continues to optimize printing parameters.
Solution Approach 2:
The calculator acts as an intermediary between the controller and the display unit, computing the reduction amount based on printing parameters and providing this information to the display unit for user presentation. This intermediary component bridges the gap between technical computation and user information needs.
3Object-generated harmful factors
If the printing device implements paper reduction functions, then the environmental friendliness improves, but the device complexity increases
Solution Approach 1:
The controller performs multiple functions including controlling the print unit to reduce roll paper length, computing the reduction amount through the calculator, and managing display output. By consolidating these functions in the controller, the system achieves paper reduction capabilities without proportionally increasing overall device complexity.
Solution Approach 2:
The printing device autonomously computes the reduction amount and displays it to users without requiring external intervention. The system self-manages the paper reduction process, calculating and communicating the environmental benefits automatically, which reduces the need for additional complex external monitoring systems.
Data Source
AI summary
A printing device can reduce the length of roll paper that is printed, and enables easily knowing how much the printed length of roll paper was reduced. A printer 200 has a print unit 240 that conveys roll paper in the conveyance direction H and executes a printing process of printing images on the roll paper; a reduction processor 222 that controls the print unit 240 in the printing process to reduce the length of roll paper to which images are printed in the conveyance direction; a calculator 223 that calculates how much the printed length of roll paper was reduced in the printing process; and a display unit 252 that displays information indicating the reduction in the printed length of the roll paper calculated by the calculator 223.