Printer Paper Ejection Speed Control for Orderly Stacking
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Solution Overview
Problem
Conventional printing devices face issues with orderly stacking of papers due to excessive force from quick roller motion, leading to disorderly stacking, and prolonged ejection times when papers are ejected at low speeds.
Innovation Solution
The printing device employs a paper ejection module that switches from a higher speed to a lower speed during the ejection process, optimizing the ejection of papers to prevent disorderly stacking while ensuring complete ejection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If papers are ejected at high speed by the paper ejection module, then the ejection time is reduced and productivity is improved, but the papers are disorderly stacked on the supporting tray
Solution Approach 1:
The paper ejection process is segmented into two distinct phases: a first ejection phase at high speed to quickly remove papers from the paper collection platform, and a second ejection phase at low speed to carefully place papers on the supporting tray. This temporal segmentation of the ejection process allows each phase to optimize for its specific function, resolving the contradiction between ejection speed and stacking order.
2Manufacturing precision
If papers are ejected at low speed to avoid disorderly stacking, then stacking order is improved, but the ejection time is prolonged and productivity decreases
Solution Approach 1:
The paper ejection module operates with periodic action by switching between two distinct ejection speeds at different time periods. During the first time period, papers are ejected at high speed; during the second time period, papers are ejected at low speed. This periodic variation in ejection speed allows the system to achieve both fast overall ejection and orderly stacking.
3Speed
If the paper ejection module uses quick rolling motion to eject papers, then the ejection speed is increased, but excessive force causes papers to be disorderly ejected
Solution Approach 1:
The paper ejection module employs dynamic control by continuously adjusting its rolling speed during the ejection process. The module starts with fast rolling motion for initial ejection, then transitions to slow rolling motion for final paper placement. This dynamic speed adjustment allows the system to maintain high productivity while controlling ejection force to prevent disorderly stacking.
Data Source
AI summary
A document managing method for a printing device is provided. The document managing method includes the following steps. Firstly, a printing mechanism prints a document with plural papers, and transfers the plural papers to a paper collection platform. Then, a management module manages the plural papers from two lateral sides of the plural papers. Then, a paper ejection module ejects a first portion of the plural papers at a first speed, and then ejects a second portion of the plural papers at a second speed. Consequently, the plural papers are exited from the paper collection platform. Then, the management module is separated from the two lateral sides of the plural papers, so that the plural papers fall down to a supporting tray. The first speed is faster than the second speed.