Printer Control Circuit Data Filtering for Speed
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Solution Overview
Problem
The existing liquid ejection apparatuses face increased processing time and decreased printing speed due to the substantial constant throughput per unit time in each head control board, which is exacerbated by the increasing amount of data such as image data and synchronization signals.
Innovation Solution
The implementation of a printer with multiple head units, a main control circuit, and sub-control circuits, where the second control circuit deletes the first parameter from the data received from the first control circuit, reducing data transmission and processing time, and optimizing the communication between the control circuits to enhance printing speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If identification information is transmitted through multiple HC boards in sequence, then each HC board can be identified, but the data amount increases and processing time increases
Solution Approach 1:
The patent extracts only the necessary identification information for each HC board from the transmitted data stream. Each HC board extracts its own identification information and discards other boards' identification information, reducing the data processing burden while maintaining reliable identification.
Solution Approach 2:
The identification information is segmented into separate parameters for each HC board. Instead of transmitting and processing complete identification data for all boards through each board, the data is divided so that each board only processes its specific segment, reducing overall processing time.
2Reliability
If image data and synchronization signals are transmitted to all HC boards, then all boards receive complete data, but the data amount increases and printing speed decreases
Solution Approach 1:
Each HC board extracts only the image data and synchronization signals corresponding to its own identification information. The first HC board extracts data for itself and deletes data for other boards before transmitting to the second HC board, ensuring each board receives complete data for its function while reducing overall data volume.
Solution Approach 2:
The data transmission system provides different quality levels of data to different HC boards based on their specific needs. Each board receives the complete set of data parameters, but only processes and acts on the subset relevant to its local function, optimizing both reliability and speed.
Data Source
AI summary
A plurality of sub control circuits are connected to respective ones of a plurality of head units. One of the plurality of sub control circuits is connected to a main control circuit so as to perform communication. The plurality of sub control circuits include a first control circuit and a second control circuit. The second control circuit is connected to the first control circuit in series so as to perform communication. The first control circuit is configured to: receive first data, the first data including a first parameter and a second parameter, the first parameter corresponding to the first control circuit, the second parameter corresponding to the second control circuit; and transmit the first data to the second control circuit. The second control circuit is configured to: receive the first data from the first control circuit; and delete the first parameter from the first data.