Dynamic Sheet Information Display Time Control in Image Forming Apparatus
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Solution Overview
Problem
Image forming apparatuses often delete sheet information displayed on the user interface before the user has a chance to review or update it, leading to inconvenience.
Innovation Solution
Incorporating sensors to detect changes in sheet feed device states and extending the display time of information prompting sheet type settings when changes are detected, ensuring users can review and update sheet information without premature deletion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If sheet information is displayed on the display for a predetermined time and then deleted, then the display can be kept clean and uncluttered, but the user may not have enough time to check and update the sheet information
Solution Approach 1:
The display time of sheet information is made dynamic rather than fixed. The control device extends the display time when a sheet feed device is demounted or another member is mounted/removed, adapting the display duration to the user's operational context. This resolves the contradiction by making the display time flexible - short enough to keep the display clean during normal operation, but extendable when the user needs more time to check and update information.
2Loss of information
If the display time of sheet information is extended, then the user has more time to check and update information, but the display remains occupied longer with prompt information
Solution Approach 1:
The display system dynamically adjusts the duration of information presentation based on detected operational states. When extension conditions are met (demounting or mounting events), the display time is prolonged to ensure information availability. This resolves the contradiction by temporarily increasing information availability only when operationally appropriate, rather than permanently occupying the display.
Solution Approach 2:
The display of prompt information occurs in periodic cycles rather than continuously. Information is displayed for a predetermined period, then deleted, and can be re-displayed when extension conditions occur. This periodic nature allows the display to remain clean most of the time while providing extended availability when needed, resolving the contradiction between information availability and display cleanliness.
3Ease of operation
If sheet information is automatically deleted after a predetermined time, then the system maintains a clean interface, but the user may lose important information before reviewing it
Solution Approach 1:
The control device uses feedback from sensors detecting operational states (mounting/demounting events) to determine whether to extend the display time. This feedback mechanism ensures that information is retained longer when the user is actively interacting with the system, resolving the contradiction by making information retention responsive to actual user needs rather than using a fixed deletion schedule.
Data Source
AI summary
An image forming apparatus includes a control device that detects a change in a first state concerning placement and removal of sheets in a sheet feed device or mounting and demounting of the sheet feed device and detects a second change in a second state concerning placement and removal or mounting and demounting of a member. When the control device detects the first change, the control device displays, on a display, first display information prompting for the user to enter settings concerning the type of sheets to be supplied to the sheet feed device. After accepting settings, the control device counts a predetermined time and deletes the first display information. When detecting the second change, the control device displays the display information for a longer time. Accordingly, when the user checks or sets the first display information about sheets, convenience is improved.