Printing Apparatus Character Region Adjustment for Small Cylinders
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Solution Overview
Problem
Printing on small-diameter cylindrical members often results in printed characters being covered by the background layer, making them difficult to visually recognize due to the compact size.
Innovation Solution
A printing apparatus that includes a conveyor and printer with a controller to adjust the position and size of the character printable region based on the outside diameter of the wrapped member, ensuring the printed characters remain visible by optimizing the placement and size of the character-string print region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the medium is attached to a wrapped member with a smaller outside diameter, then the medium fits the wrapped member, but the printed portion is covered by the background layer making it impossible or difficult to visually recognize
Solution Approach 1:
The controller obtains outside-diameter relating information about the wrapped member before printing, and based on this information, pre-determines the character printable region boundaries. This preliminary action ensures that characters are printed in positions that will remain visible after wrapping, preventing the background layer from covering the printed portion.
Solution Approach 2:
The system changes the parameters of the character printable region (position and size) based on the outside diameter of the wrapped member. By adjusting these parameters according to the specific diameter, the system ensures optimal character placement that maintains viewability across different wrapped member sizes.
2Device complexity
If the character printable region is fixed regardless of wrapped member size, then the printing process is simple, but the printed characters may be covered on small-diameter members
Solution Approach 1:
The character printable region is made dynamic rather than fixed. The controller adjusts the position and size of the printable region based on the obtained outside-diameter relating information, allowing the system to adapt to different wrapped member sizes while maintaining character viewability.
Solution Approach 2:
The system changes the parameters (position and size) of the character printable region based on the outside diameter of the wrapped member. This parameter adjustment ensures that characters are always printed in visible positions regardless of the wrapped member size.
3Loss of information
If the character printable region is adjusted based on outside diameter, then character viewability is maintained, but the control process becomes more complex
Solution Approach 1:
The controller automatically obtains outside-diameter relating information and autonomously determines the character printable region boundaries based on this information. This self-service approach minimizes manual intervention and simplifies the overall control process despite the additional calculation requirements.
Data Source
AI summary
A printing apparatus includes: a conveyor configured to convey a medium including a transparent base layer and a separation layer stacked on each other, the medium further including a printing background layer; a printer configured to print a character on the medium conveyed by the conveyor, wherein the medium on which the character is printed is a printed medium; and a controller configured to control the conveyor and the printer. The controller is configured to: obtain outside-diameter relating information relating to an outside diameter of a wrapped member; and based on the obtained outside-diameter relating information, set a character printable region in which the printer is allowed to print the character on the printing background layer.