Printing Apparatus Code Size Adaptation for Medium Types
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Solution Overview
Problem
Existing bar code printing technologies face quality reduction when used with media types lacking pre-stored correction information, requiring users to perform trial and error, thereby increasing user burden and reducing printing stability.
Innovation Solution
A printing apparatus and method that includes a transport unit, printing unit, and control unit to perform first and second printing processing, where a code group with varying sizes is printed on a medium, reading data is acquired, and the code size is determined based on this data for subsequent printing, ensuring optimal code size adoption for the medium type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pre-stored correction information is used for bar code printing, then printing quality is maintained for known media types, but user burden increases for media without pre-stored correction information requiring trial and error
Solution Approach 1:
The system automatically performs trial printing and evaluation without user intervention. The printing apparatus autonomously determines optimal printing parameters by conducting trial prints on the medium, evaluating the results through reading accuracy, and automatically selecting the best parameters for subsequent printing operations
Solution Approach 2:
The system uses reading unit feedback to evaluate trial printing results. The reading unit reads the trial-printed codes and provides feedback on reading accuracy, which the control unit uses to determine whether to adopt the trial printing parameters for normal operation
2Manufacturing precision
If trial and error method is used to obtain appropriate code size, then code quality can be optimized for specific media, but time consumption and user burden increase significantly
Solution Approach 1:
The system performs preliminary trial printing automatically before normal printing operations. By conducting the trial print and evaluation process automatically without user intervention, the system eliminates the time-consuming manual trial and error process while still achieving optimized code quality
Solution Approach 2:
The system autonomously completes the entire trial printing and parameter optimization process without user involvement. The control unit automatically manages trial printing, collects reading data, evaluates results, and determines optimal parameters, freeing the user from time-consuming manual adjustments
3Reliability
If manual adjustment of code parameters is required for different media types, then printing quality can be maintained, but operation complexity and user burden increase
Solution Approach 1:
The system automatically adapts to different medium types by performing trial printing and self-evaluation. The control unit autonomously determines optimal printing parameters for each medium type without requiring user knowledge or manual adjustment, simplifying operation while maintaining quality
Solution Approach 2:
The system automatically changes printing parameters based on medium type detection and trial printing results. The control unit adjusts code size, dot configuration, and other parameters according to the evaluated performance on the specific medium, eliminating the need for manual parameter adjustment
Data Source
AI summary
A printing apparatus includes a transport unit, a printing unit, a reading unit, and a control unit configured to control the transport unit and the printing unit to perform first printing processing and second printing processing, wherein the control unit prints, in the first printing processing, a code group including a first code of a first size and a second code of a second size larger than the first size on a first medium that is the medium, acquires reading data that is a result of reading, by the reading unit, of the code group printed on the first medium, determines a code size to be adopted for the second printing processing based on the reading data, and, in the second printing processing, prints a third code of the code size on a medium of the same type as that of the first medium.