Print Medium Transport Control for Readable Low-Margin Printing
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Solution Overview
Problem
Existing printing devices reduce margins in print data, leading to narrowed character and picture intervals, making the printed content difficult to read.
Innovation Solution
A printing device with a control method that switches between first and second print modes, adjusting the transport amount of the print medium in the transport direction to maintain readable intervals while reducing paper usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If the margin in the developed data is reduced to decrease print medium usage, then the amount of print medium used is reduced, but the intervals of characters and pictures are narrowed making the printed content difficult to see
Solution Approach 1:
The patent applies dynamics by making the transport amount adjustable between two modes: a first transport amount that maintains standard character/picture intervals for readability, and a second transport amount that reduces intervals to decrease print medium usage. The control section dynamically switches between these modes based on printing conditions, allowing the system to adapt between readability and paper conservation needs.
2Loss of substance
If the transport amount is changed to reduce print medium usage, then paper consumption is minimized, but print density and energy consumption may change
Solution Approach 1:
The patent applies parameter changes by adjusting the transport amount parameter between two defined modes. When switching from the first transport amount to the second transport amount, the system changes the transport distance parameter to reduce paper usage while the control section manages the printing parameters to maintain appropriate print density for each mode.
Data Source
AI summary
A printing device 1 includes a transport section 60 configured to transport a print medium in a transport direction, a transport driver circuit 50 configured to drive the transport section 60, a print head 70 configured to print an image based on print data on the print medium, and a control section 100 configured to control the transport driver circuit 50 and the print head 70 to execute a first print mode and a second print mode different from the first print mode, wherein the control section 100 is configured to change a transport amount by which the print medium is transported in the transport direction while the image based on the print data is printed on the print medium between a case where the first print mode is executed and a case where the second print mode is executed.