Printer Media Type Determination for Stable Print Control
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Solution Overview
Problem
Existing printers face challenges in maintaining consistent print quality due to fluctuations in detected parameters caused by sensor detection errors, print-receiving medium disorders, and mechanical resistance changes, leading to unpredictable print formation operations.
Innovation Solution
A printer system that includes a feeder, a printing head, memory for storing parameters of various print-receiving media, and a CPU for determining the type of media based on detected parameters and adjusting the print formation operation accordingly, ensuring stable control even with fluctuations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If sensor detection is used to control print formation operation, then the printer can adapt to different print-receiving medium types, but the detected parameter values fluctuate due to detection errors, medium disorders, and mechanical resistance changes, causing unpredictable control mode changes and degraded print quality
Solution Approach 1:
The patent changes the control parameter from directly using detected parameter values to using a determined medium type based on detected parameters. The CPU compares detected parameters with stored reference parameters to determine the print-receiving medium type, then controls print formation based on this determined type rather than raw detected values, eliminating the impact of parameter fluctuations on control stability
Solution Approach 2:
The patent introduces an intermediary step between detection and control: the determination of print-receiving medium type. The detected parameters serve as input to this intermediary determination process, which then outputs a stable medium type identification that drives the control system, acting as a buffer that filters out parameter fluctuations
2Ease of operation
If control mode changes based on detected parameter values, then the printer responds to different medium conditions, but the same medium type may trigger different control modes due to parameter fluctuations, leading to dispersion of print quality
Solution Approach 1:
The patent transforms the control approach by changing from direct parameter-based control to type-based control. The CPU determines the medium type by comparing detected parameters with stored reference data, then uses this determined type to select control parameters, ensuring that the same medium type always triggers the same control mode regardless of parameter fluctuations
Solution Approach 2:
The patent performs preliminary determination of the print-receiving medium type before executing the print formation control. The CPU compares detected parameters with stored reference parameters in advance, determines the medium type, and then controls the printing based on this predetermined type, ensuring consistent control for the same medium type
Data Source
AI summary
The disclosure discloses a printer including a feeder configured to feed one print-receiving medium that comprises a plurality of print-receiving parts. A printing head is configured to form a plurality of print parts by sequentially forming desired prints on the plurality of print-receiving parts. A CPU executes a determination process and a printing control process. In the determination process, a type of the one print-receiving medium is determined on the basis of a comparison between the parameters of the one print-receiving medium detected by a sensor and the parameters of each of the plural types of print-receiving medium stored in a memory. In the printing control process, controlling a print formation operation of the printing head is controlled on the basis of a determination result in the determination process.