Document Reading Control with Position-Based Output Wait
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Solution Overview
Problem
In document reading and image output systems, there is a risk that image data at a position where compositing starts may be outputted before an additional image is composited, leading to incomplete reading of the document data when the document reading apparatus finishes.
Innovation Solution
A control device is implemented to instruct the document reading apparatus to read at a first speed and control the image output device to output at a higher second speed, with a wait time adjusted based on the position where the additional image starts to be composited, ensuring the image data is outputted only after the reading is completed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the image output device starts outputting after the document reading apparatus starts reading and after a wait time has elapsed, then the output device can finish outputting at the same time as the reading apparatus finishes reading, but there is a possibility that image data at a position at which compositing starts is outputted before an additional image is composited at that position
Solution Approach 1:
The control device calculates the position at which compositing starts when reading is finished in advance, and determines the wait time based on this pre-calculated position. This preliminary calculation ensures that the additional image will be composited at the correct position without delay, resolving the contradiction between maintaining compositing accuracy and achieving high output speed.
Solution Approach 2:
The control device continuously monitors the reading progress and dynamically adjusts the output timing based on feedback from the reading apparatus. By using feedback information about the actual reading status, the system can precisely control when to start outputting each portion of the image data, ensuring that compositing operations are synchronized correctly with the reading process.
2Productivity
If the image output device outputs image data at a second speed higher than the first speed of the document reading apparatus, then productivity is improved, but the document reading apparatus cannot read the image data of the document while the image output device outputs the image data
Solution Approach 1:
The control device segments the image data output process into multiple portions, each corresponding to a specific time window during which the reading apparatus is actively reading. By dividing the output process into segments that align with reading intervals, the system enables the output device to operate at high speed while ensuring that all image data is read and composited correctly before final output.
Solution Approach 2:
The control device dynamically adjusts the output timing and speed based on the real-time status of the reading apparatus. Rather than using a fixed output schedule, the system continuously adapts the output parameters to match the reading progress, allowing the high-speed output device to coordinate effectively with the slower reading apparatus and maintain both productivity and reliability.
Data Source
AI summary
A control device includes a processor configured to: instruct a document reading apparatus that reads a document at a first speed to read image data of the document; and control an image output device that outputs an image to a medium at a second speed higher than the first speed such that the image data of the document starts to be outputted to the medium after reading is started and after a wait time depending on a position at which an additional image starts to be composited when it is determined that reading is finished has elapsed.