Printer Scanner Frame Detection for Print Alignment
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Solution Overview
Problem
Existing printers cannot accurately print data within a frame on materials, as they lack the capability to detect and adjust for frame dimensions during manual scanning, leading to inconsistent spacing and formatting issues.
Innovation Solution
A printer equipped with a processor, a printing head, a movement sensor, and a scanner that acquires images of the material to be printed, allowing for frame detection and alignment without printing, enabling precise printing within detected frames by adjusting print size and position based on frame dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the printer uses manual scanning without frame detection capability, then the device complexity is reduced, but the manufacturing precision of printing data within frames deteriorates
Solution Approach 1:
The scanner performs preliminary scanning to detect the frame position and dimensions before the printing head executes the printing operation. This preliminary detection action allows the system to acquire frame information in advance, calculate the appropriate print area and position, and ensure accurate printing within the frame without requiring complex real-time coordination during printing.
Solution Approach 2:
The scanner acts as an intermediary component between the manual scanning operation and the printing head. It captures the frame information first, provides this data to the control unit, which then uses it to guide the printing head's output. This intermediary role allows the simple printing head to achieve precise frame-aligned printing through the scanner's preparatory work.
2Manufacturing precision
If the printer adds scanner and frame detection processing, then the manufacturing precision of printing within frames is improved, but the device complexity increases
Solution Approach 1:
The scanner serves multiple functions: it scans the document to be printed, detects the frame position and dimensions, and provides this information to the control unit. By making the scanner multi-functional rather than adding a separate frame detection device, the system achieves improved printing precision while minimizing the increase in device complexity.
Solution Approach 2:
The frame detection processing is performed as a preliminary step before printing, utilizing the scanner's image acquisition capability. The control unit processes the scanned image to identify frame boundaries and calculates print parameters in advance, allowing the printing head to simply execute the pre-calculated printing operation without requiring complex real-time control mechanisms.
3Manufacturing precision
If the printer performs frame detection scanning before printing, then the printing position accuracy is improved, but the printing time increases
Solution Approach 1:
The frame detection scanning is performed as a preliminary action before the actual printing process. By detecting the frame position and dimensions in advance, the system can calculate and prepare the print area and positioning information beforehand, allowing the printing head to execute the printing operation efficiently without repeated adjustments or corrections during printing.
Solution Approach 2:
The scanner automatically detects the frame boundaries and provides the position information to the control unit, which then autonomously calculates the print parameters. This self-service mechanism eliminates the need for manual frame measurement or complex real-time coordination during printing, reducing overall processing time while maintaining high positioning accuracy.
Data Source
AI summary
A printer includes: a processor; a head configured to perform printing; a sensor configured to detect an amount of movement of the printer; and a scanner configured to acquire an image including a frame described on a material to be printed beforehand, the scanner being disposed forward of the head in a moving direction of the printer. The processor executes during scanning for frame detection over the material to be printed, frame detection processing to detect the frame based on the amount of movement and the image without performing the printing, and during scanning for printing over the material to be printed, print processing to perform the printing with the head based on the frame detected.