Printer Controller Series Data Extraction to Suppress Noise
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Solution Overview
Problem
Existing image recording apparatuses experience noise due to unnecessary radiation during data transmission, particularly as the size of image data increases, necessitating a solution to suppress noise generation.
Innovation Solution
A controller with multiple control circuits connected in series to transmit data, where each control circuit extracts only the necessary data for its corresponding head unit, reducing the amount of data transmitted and thereby minimizing noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If all image data is transmitted through each control board in series, then all head units can be controlled, but noise increases due to unnecessary data radiation
Solution Approach 1:
Each control board extracts only the image data corresponding to its controlled head unit from the transmitted data stream, discarding unnecessary data for other heads. This extraction process eliminates unnecessary data radiation at each transmission stage, thereby suppressing noise generation while maintaining the ability to control all head units through the series-connected architecture
2Adaptability or versatility
If image data size increases to control more heads, then more heads can be controlled, but noise magnitude increases
Solution Approach 1:
The image data stream is segmented at each control board stage, with each board processing only its specific portion of data while passing the remainder downstream. This segmentation allows the system to control multiple head units without increasing the data transmission size at any individual stage, thereby preventing noise magnitude increase despite expanded control capability
Data Source
AI summary
A controller includes a plurality of control circuits configured to be connected to respective ones of a plurality of head units. Each head unit has a nozzle. The plurality of control circuits includes a first control circuit, a second control circuit connected to the first control circuit in series to perform communication, and a third control circuit connected to the second control circuit in series to perform communication. The first control circuit is configured to transmit first data to the second control circuit. The first data is data for controlling at least one of the plurality of head units. The second control circuit is configured to transmit second data to the third control circuit. The second data is data for controlling at least one of the plurality of head units. A data amount of the second data is smaller than a data amount of the first data.