Printer Controller Consumable Identification via Test Pattern
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Solution Overview
Problem
Image-forming apparatuses face issues when a consumable with unrecognized identification information is installed, as they cannot acquire necessary control information for proper operation.
Innovation Solution
The apparatus includes a controller that determines if control information exists for a consumable, and if not, it prints a test pattern and extracts image information to acquire the necessary control information from a management server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the server apparatus uses identification information to manage control information, then the system can control multiple consumables, but consumables with unrecognized identification information cannot be controlled
Solution Approach 1:
A test pattern serves as an intermediary between the consumable and the control system. Instead of directly identifying the consumable through its ID, the system prints a test pattern using the consumable, captures an image of the printed pattern, and extracts characteristics from this intermediate representation to generate control information. This mediator approach allows any consumable to be characterized without requiring pre-registration in the server's database.
Solution Approach 2:
The system performs self-characterization by printing a test pattern with the consumable and automatically extracting its properties from the printed output. The consumable effectively identifies itself through its printing characteristics rather than requiring external identification. The image-forming apparatus autonomously captures the test pattern image and extracts relevant information to generate control parameters without human intervention or server database lookup.
2Measurement precision
If control information is acquired from the server, then accurate control is achieved, but the system cannot handle consumables not registered in the server
Solution Approach 1:
The system replaces the information-based identification mechanism (reading consumable ID and retrieving from server database) with a physical characterization mechanism (printing test pattern and analyzing optical output). Instead of relying on electronic identification data stored in the server, the system directly measures the physical printing characteristics of the consumable through captured images, substituting a mechanical/optical measurement approach for an information retrieval approach.
Solution Approach 2:
The system changes the parameter basis for control information from identification data (ID-based lookup) to physical characteristics (image-based extraction). By capturing and analyzing the actual printed test pattern, the system extracts parameters such as color properties, resolution, and printing quality directly from the physical output, thereby adapting control information to the actual consumable performance rather than relying on pre-stored identification data.
3Adaptability or versatility
If a test pattern is printed to extract image information, then control information can be acquired for unrecognized consumables, but additional printing operations are required
Solution Approach 1:
The system performs preliminary characterization by printing a test pattern before normal printing operations. This preliminary action captures the consumable's printing characteristics in advance, allowing the control system to be optimized for that specific consumable before actual production printing begins. The test pattern printing is performed once during setup, and the extracted information is stored for use in subsequent printing operations, amortizing the additional operation cost over many productive print jobs.
Data Source
AI summary
An image-forming apparatus includes a detachable consumable; a printer that prints an image using the consumable; and a controller that determines whether control information that is set for the consumable and that is for control of the printer exists. The controller extracts, when it is determined that the control information corresponding to the consumable does not exist, image information from an image of a predetermined test pattern printed by the printer, and acquires the control information generated based on the extracted image information.