Printing Apparatus Suspend Data Expansion Deviation Correction
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Solution Overview
Problem
Existing printing apparatuses experience delays in reflecting measured deviation amounts during the expanding process of print data when the correction execution condition is satisfied, leading to increased ink and toner consumption and prolonged waiting times.
Innovation Solution
A printing apparatus with a control unit that suspends the expanding of current print data when the correction execution condition is met, measures the deviation amount, and restarts the expanding process based on the measurement, ensuring timely reflection of correction data during the expanding process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the expanding process of print data is executed continuously without suspension, then the printing speed is maintained, but the measured deviation amount cannot be reflected timely to the expanding process
Solution Approach 1:
The expanding process is made dynamic by introducing suspension and resumption capabilities. The control unit suspends the expanding process when deviation amount measurement is detected, allowing real-time adjustment, then resumes the process after correction. This dynamic adjustment enables timely reflection of measurement results while maintaining overall printing efficiency.
Solution Approach 2:
The system implements feedback by measuring the deviation amount of printed images and using this information to adjust the expanding process. The control unit detects when correction is needed, suspends expanding, applies correction based on measured deviation, and then resumes expanding. This closed-loop feedback ensures print quality is maintained while reducing delays.
2Manufacturing precision
If the measurement of deviation amount is executed frequently to ensure image quality, then the print quality is improved, but the user has to wait for a long time and consumption of ink and toner is increased
Solution Approach 1:
The system performs preliminary measurement of deviation amount at specific points during the printing process, particularly when correction execution conditions are satisfied. By measuring at these critical moments rather than continuously, the system ensures image quality while minimizing ink and toner consumption associated with frequent measurements.
Solution Approach 2:
The control unit changes the parameter of measurement frequency based on correction execution conditions. When conditions are met (such as after a certain number of pages or time elapsed), measurement is performed. When conditions are not met, measurement is skipped. This adaptive parameter adjustment maintains image quality while reducing resource consumption.
3Manufacturing precision
If the expanding process is suspended to measure deviation amount, then the measured deviation amount can be reflected to the expanding process, but the printing time is extended
Solution Approach 1:
The system applies partial action by suspending the expanding process only partially - specifically suspending only the portion that needs correction based on measured deviation. Not the entire printing process is stopped, but only the affected expanding operations are suspended and resumed after correction. This minimizes the impact on overall printing speed while ensuring correction accuracy.
Data Source
AI summary
A printing apparatus comprising: a printing unit configured to print an image based on expanded data; a measuring unit configured to measure a deviation amount of at least one of a position and a density of the image printed by the printing unit when a correction execution condition is satisfied; an expanding unit configured to expand print data based on the measurement by the measuring unit, so as to produce the expanded data; and a control unit, wherein when the correction execution condition is satisfied during the expanding of current print data which corresponds to a current page being expanded, the control unit is configured to control the expanding unit to suspend the expanding of the current print data, the measuring unit to measure the deviation amount, and the expanding unit to restart expanding an unexpanded portion of the current print data based on the measurement.