Paper Supply Device Synchronization with Post-Print Stapling
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Solution Overview
Problem
In printing systems that perform double-sided printing with post-print processing, the timing of paper supply can lead to productivity losses due to mismatched paper supply intervals, especially when stapling processes are involved, as existing methods fail to accurately account for the completion time of post-print processes.
Innovation Solution
A paper supply device with a control unit that adjusts paper supply intervals based on pre-calculated post-print processing times, ensuring that the supply of subsequent sheets is synchronized with the completion of stapling processes, thereby preventing productivity losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sheet interval is adjusted to match the post print processing time, then the post print processing time is secured, but the paper supply timing may deviate from the natural number multiple of the sheet feeding cycle, causing productivity loss
Solution Approach 1:
The patent applies dynamics by making the paper supply interval adjustable and adaptive. The control unit dynamically changes the paper supply interval based on the relationship between the post-print processing time and the sheet feeding cycle, selecting either the natural number multiple of the sheet feeding cycle or the post-print processing time interval to optimize both reliability and productivity
Solution Approach 2:
The patent applies parameter changes by modifying the paper supply interval parameter. The control unit calculates the relationship between post-print processing time and sheet feeding cycle, then adjusts the paper supply interval parameter to either match the natural number multiple of the sheet feeding cycle or to match the post-print processing time, depending on which configuration minimizes productivity loss
2Stability of the object's composition
If the paper supply interval is set to a natural number multiple of the sheet feeding cycle, then the paper supply timing is regular, but it may not match the actual post print processing completion time, causing loss time
Solution Approach 1:
The patent applies dynamics by making the paper supply interval adjustable and adaptive. The control unit dynamically changes the paper supply interval based on the relationship between the post-print processing time and the sheet feeding cycle, selecting either the natural number multiple of the sheet feeding cycle or the post-print processing time interval to optimize both reliability and productivity
Solution Approach 2:
The patent applies feedback by having the control unit calculate the relationship between post-print processing time and sheet feeding cycle, then adjust the paper supply interval based on this feedback information. The system monitors the timing relationship and modifies the paper supply timing accordingly to minimize loss time while maintaining operational stability
Data Source
AI summary
A paper supply device is equipped with a paper supply unit that sequentially supplies a plurality of print media, and a control unit that controls the paper supply unit. During sequential supply of a plurality of print media at a paper supply interval, in the case that it is necessary to secure a paper supply interval which is set in advance and is longer than the paper supply interval, a reference paper supply interval, based on a point in time which is a natural number multiple of the paper supply interval, and a post print process paper supply interval are compared. Print media are supplied at the post print process paper supply interval in the case that the post print process paper supply interval and the reference paper supply interval are different.