Label Printer Sensor Cueing Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In thermal-transfer printing, precise positioning of the leading end of a label continuous body is crucial to prevent printing outside the sheet member, which often results in misalignment and incomplete printing of the first label.
Innovation Solution
The printer employs a detecting sensor to detect the leading end and eye marks on the label, performing cueing processing to ensure accurate alignment by adjusting the drive and pressure rollers, thereby preventing printing outside the label and improving operator usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If strict cueing positioning is performed manually, then printing alignment precision is improved, but operator complexity and time consumption increase
Solution Approach 1:
The printer performs automatic cueing positioning using a detecting sensor to identify the leading end and eye marks on the label continuous body. The control unit automatically calculates and adjusts the starting position based on detected mark positions, eliminating the need for manual positioning by operators while maintaining precise printing alignment.
Solution Approach 2:
The manual mechanical positioning process is replaced by an optical detection system. The detecting sensor optically detects marks on the label, and the control unit computationally determines the correct positioning, substituting human manual adjustment with an automated sensor-based measurement and control system.
2Ease of operation
If manual cueing is simplified for ease of use, then operator usability is improved, but printing alignment precision deteriorates
Solution Approach 1:
The system performs self-positioning by automatically detecting marks and calculating the correct starting position. The printer autonomously compensates for any manual placement variations, maintaining high printing alignment precision while allowing operators to simply load the label continuous body without complex positioning procedures.
Solution Approach 2:
The detecting sensor provides feedback information about the actual position of marks on the label continuous body. The control unit uses this feedback to automatically adjust and determine the correct printing starting position, ensuring precise alignment regardless of how the label was initially loaded by the operator.
3Loss of time
If automatic mark detection is implemented, then positioning time is reduced, but device complexity increases
Solution Approach 1:
Manual visual inspection and positioning time is replaced by automatic optical mark detection. The detecting sensor quickly identifies the leading end and eye marks, and the control unit rapidly calculates the starting position, dramatically reducing positioning time while the added complexity is confined to the automated detection and control system.
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
Provided is a label printer capable of preventing a printing content from being printed outside a label while improving usability for an operator. A printer 10 causes a detecting sensor 70 to detect a leading end of a paper sheet 1 as well as eye marks. Further, the printer 10 causes a control unit 40 to perform cueing processing to start printing from a first label when a difference between a length of the paper sheet 1 from the leading end to a first of the eye marks and a length of the paper sheet 1 from the first of the eye marks to a second of the eye marks is smaller than a threshold value, and to start printing from a second label when the difference is equal to or greater than the threshold value.