Printhead Control Circuit Sequencing for Timely Image Data Transfer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image forming systems face inefficiencies in data transfer between multiple head controllers and distribution boards, leading to sub-optimal printing performance.
Innovation Solution
A printing apparatus with a main control circuit and sub-control circuit group, where image data is transmitted sequentially from downstream to upstream, allowing for efficient data transfer and synchronization across multiple head modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If image data is transmitted sequentially from upstream to downstream in a series-connected sub-control circuit group, then data transfer follows a simple linear sequence, but data transfer efficiency deteriorates due to waiting time at each stage
Solution Approach 1:
The main control circuit transmits image data to upstream sub-control circuits in advance before downstream sub-control circuits are ready to receive. Specifically, the second image data is transmitted to the second sub-control circuit before the first image data is transmitted to the first sub-control circuit, allowing upstream circuits to prepare and process data ahead of time, thereby eliminating waiting time and improving overall data transfer efficiency.
2Reliability
If image data is transmitted to downstream sub-control circuits first, then data follows natural flow direction, but upstream sub-control circuits experience delays and potential synchronization issues
Solution Approach 1:
To ensure synchronization of ink discharge across all sub-control circuits, the system transmits data to upstream circuits in advance. The main control circuit sends second image data to the second sub-control circuit before sending first image data to the first sub-control circuit, ensuring that all sub-control circuits receive their respective data simultaneously and can execute ink discharge operations in perfect synchronization, thereby improving reliability while maintaining timing coordination.
Data Source
AI summary
There is provided a printing apparatus including: a main control circuit; a sub-control circuit group connected to the main control circuit in series, the sub-control circuit group being configured to transfer image data from the main control circuit downstream; and a head group configured to be driven by the sub-control circuit group. The sub-control circuit group has at least two sub-control circuits including a second sub-control circuit and a first sub-control circuit connected to the second sub-control circuit at an upstream of the second sub-control circuit. The image data includes second image data and first image data. The main control circuit is configured to: transmit the second image data to the second sub-control circuit; and transmit the first image data to the first sub-control circuit after the transmitting of the second image data.