Sub-control Circuit Data Transmission for Printing Efficiency
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Solution Overview
Problem
The efficiency of the image data transmission process in liquid droplet ejecting apparatuses decreases, potentially leading to longer printing times.
Innovation Solution
A printing apparatus with a series-connected main control circuit and sub-control circuits, where each sub-control circuit stores information on transmitting methods and transmits print data downstream using the indicated method, allowing for efficient data transmission without storing the data in memory.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If each sub-control circuit stores image data corresponding to itself and transmits remaining data downstream, then printing can be performed with distributed control, but the transmission efficiency decreases and printing time increases
Solution Approach 1:
The patent applies dynamics by making the data transmission mode flexible and changeable. Each sub-control circuit can dynamically switch between two transmission modes: (1) storing received image data and transmitting only non-corresponding data downstream, or (2) directly transmitting all received data downstream without storage. This dynamic adaptability allows the system to optimize transmission efficiency based on specific printing conditions while maintaining distributed control architecture.
Solution Approach 2:
The patent changes the parameter of data transmission behavior by introducing a selectable transmission mode mechanism. The sub-control circuits can change their operational parameters between 'store and selective transmit' mode and 'direct transmit' mode. This parameter change capability resolves the contradiction by allowing the system to achieve both distributed control benefits and high transmission efficiency depending on the chosen mode.
2Stability of the object's composition
If sub-control circuits store print data in memory, then data can be buffered for processing, but the transmission process becomes slower and less efficient
Solution Approach 1:
The patent makes the data storage behavior dynamic rather than static. Instead of always storing data in memory, the sub-control circuits can dynamically choose to either store data (providing buffering stability) or transmit data immediately (reducing time loss). This dynamic approach resolves the contradiction between data buffering stability and printing time efficiency.
Solution Approach 2:
The patent applies partial action by allowing sub-control circuits to selectively store only the portion of data they need (corresponding image data) while transmitting the rest downstream without storage. This partial storage approach maintains necessary buffering capability while minimizing the time loss associated with full data storage and processing at each circuit.
Data Source
AI summary
There is provided a printing apparatus including: a main control circuit; and sub-control circuits connected in series to each other and configured to transmit print data, the sub-control circuits including at least a downstream-most sub-control circuit and an upstream-most sub-control circuit connected to the main control circuit. Each of at least one sub-control circuit, included in the sub-control circuits and other than the downstream-most sub-control circuit is configured to: store information indicating one of transmitting methods of the print data, the transmitting methods including a transmitting method by which the one of the sub-control circuits having received the print data transmits entirety of the print data received downstream; and transmit the print data downstream, by the one of the transmitting methods indicated by the information, in a case where the print data is received.