Printer Tray Selection for Accurate Paper Registration
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Solution Overview
Problem
Existing multi-function devices face challenges in accurately determining the best paper registration for print jobs due to environmental factors affecting tray alignment, even after adjustment features are utilized.
Innovation Solution
A method and system that involve obtaining alignment information for multiple printer trays, comparing these conditions with those during a print job, and selecting the optimal tray based on judged differences to ensure accurate paper registration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If tray alignment adjustment is performed to center the image on the page, then paper registration accuracy is improved, but environmental factors still cause alignment drift and reduce registration precision
Solution Approach 1:
The system performs preliminary tray alignment adjustments and stores alignment information before actual printing. By pre-calibrating each tray's alignment characteristics and saving this data, the system prepares the optimal alignment state in advance, which can then be referenced during printing to maintain accuracy despite environmental variations.
Solution Approach 2:
The system judges differences between stored alignment conditions and current printing conditions, then selects the most appropriate tray based on this comparison. This feedback mechanism allows the system to adapt to environmental changes by choosing trays whose alignment characteristics best match current conditions, thereby maintaining registration precision.
2Adaptability or versatility
If multiple trays are used for printing, then printing capacity and versatility are improved, but determining the best tray for paper registration becomes more complex
Solution Approach 1:
The system automatically obtains alignment information for each tray, judges the differences between alignment conditions and printing conditions, and selects the best tray without user intervention. This self-service approach eliminates the complexity of manual tray selection while maintaining high printing capacity and versatility across multiple trays.
Solution Approach 2:
The system changes the parameter of tray selection by comparing alignment information and printing conditions, then selects the tray with the best matching parameters. This automated parameter-based selection simplifies the complexity of managing multiple trays while preserving adaptability.
3Measurement precision
If environmental factors are considered in tray selection, then paper registration accuracy is improved, but the system complexity increases
Solution Approach 1:
The system performs preliminary alignment measurements and stores alignment information under various conditions before actual printing. By pre-capturing environmental factors and alignment characteristics, the system reduces the complexity of real-time environmental monitoring while maintaining high registration accuracy through informed tray selection.
Data Source
AI summary
A method is disclosed for controlling at least one printer engine, the at least one printer engine having plural trays, each of the plural trays is aligned independently for imaging on a sheet of print medium. The method includes obtaining information according to first conditions in which each of the plural trays has been aligned, and the alignment of the each of plural trays is an adjustment to a position of a printable area on the sheet of print medium so that the printable area is centered on the sheet of print medium; obtaining information according to a second condition in which the at least one printer engine executes a print job; judging differences between each of the first conditions and the second condition; selecting a tray for the print job based on the judged differences; and instructing the print engine to execute the print job using the selected tray.