Stacker Ejection Order Control for Image Forming Apparatus
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Solution Overview
Problem
In image forming apparatuses with multiple stackers, it is difficult to determine which stacker will be used next for paper ejection, leading to potential skipping of higher-priority stackers if the conveyance cart is not set, causing operational inefficiencies.
Innovation Solution
An image forming apparatus with a control unit that determines the paper ejection order based on the setting of conveyance carts and the state of stackers, excluding those with removed or full conveyance carts, and displays this order to the user, ensuring efficient paper distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple stackers are used to handle large volumes of paper, then the image forming apparatus can perform image formation of a large number of copies, but it becomes difficult to recognize to which stacker sheets will be ejected next
Solution Approach 1:
A display unit is introduced as an intermediary between the control unit and the user. The display unit visually presents the priority order of stackers and their current states (full, ejecting, ready), serving as a mediator that translates internal system state into user-comprehensible information, thereby resolving the information loss problem while maintaining multiple stackers for high-volume copying
2Productivity
If a priority order of stackers is set, then paper ejection can be organized, but it is difficult to recognize the next stacker for ejection because higher-priority stackers may be skipped if conveyance carts are not set
Solution Approach 1:
The display unit provides real-time feedback about each stacker's state (full, ejecting, ready) and the current priority order. This feedback mechanism allows users to understand why a particular stacker is selected for the next ejection, preventing confusion when higher-priority stackers are skipped due to being full or having removed conveyance carts
Solution Approach 2:
The display unit acts as an intermediary that communicates the complex priority logic and current stacker states to the user in an easily understandable format, bridging the gap between the automated priority system and user comprehension
Data Source
AI summary
An image forming apparatus including an image forming unit which continuously forms an image on sheets of paper, three or more stackers to which the sheets on which the image is formed by the image forming unit are ejected and a control unit which determines paper ejection order of stackers to which the sheets are to be ejected among the three or more stackers in a predetermined order, wherein each of the stackers includes a loading unit on which the sheets are loaded and a conveyance cart which is disposed under the loading unit and by which the loading unit can be removed from the stacker.