Printer Notification Control for Held Printed Material
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Solution Overview
Problem
Small-sized printing apparatuses without a discharge tray pose challenges in notifying users of the printing process status or printed material status, as they often hold printed materials, making it difficult for users to determine when to remove them, potentially leading to printing errors or failures.
Innovation Solution
A printing apparatus equipped with a detection unit to sense the removal of held printed materials and a control unit that uses a notification unit, such as LEDs or a display, to inform users through various notification patterns indicating the status of the printing process and the printed material, ensuring timely removal and preventing printing errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the printing apparatus holds the printed material at the discharge slot instead of completely discharging it, then the printed material is prevented from being scattered around, but it becomes difficult for the user to check the status of the printing process or the printed material
Solution Approach 1:
The patent implements a notification mechanism that provides feedback to the user about the printing status. The notification unit outputs notifications based on detection results from the detection unit, informing users whether printing is completed and whether the printed material has been removed, thus resolving the information loss caused by holding the material inside the apparatus
Solution Approach 2:
The notification unit acts as an intermediary between the internal printing process and the user. It translates the internal status (printing completion, material removal) into user-perceptible notifications, allowing users to know the status without directly observing the held printed material inside the apparatus
2Volume of moving object
If the printing apparatus does not have a discharge tray, then the apparatus size is reduced, but there is no mechanism to notify the user of the printing process status or printed material status
Solution Approach 1:
The patent implements a feedback loop where the detection unit monitors the discharge slot for printed material removal and the notification unit communicates this status to the user. This feedback mechanism compensates for the removed discharge tray by providing electronic/optical notification instead of physical indication
Solution Approach 2:
The patent replaces the mechanical discharge tray with a detection and notification system. Instead of using a physical tray to hold and display printed materials, the system uses detection units to sense material presence and notification units (optical or electrical) to inform users, substituting mechanical indication with electronic/optical communication
3Stability of the object's composition
If the printing apparatus holds the printed material, then the printed material is contained within the apparatus, but printing errors or failures may occur due to user unawareness of the printing completion status
Solution Approach 1:
The notification mechanism provides real-time feedback to users about printing completion and material removal status. This prevents printing errors by alerting users to take appropriate actions (remove material, wait for next print), thereby maintaining reliable operation even though materials are held inside the apparatus
Solution Approach 2:
The detection unit continuously monitors the discharge slot in advance to detect when printed material is present or removed. This preliminary detection allows the notification unit to alert users before errors occur, enabling proactive user response to maintain printing reliability
Data Source
AI summary
A printing apparatus includes: a printing unit; a discharge unit configured to discharge a printed material on which the printing unit has performed printing and configured not to completely discharge but to hold the printed material; a detection unit configured to detect removal of the printed material that has been held by the discharge unit; and a control unit configured to control notification by a notification unit to a user. In response to detection by the detection unit of the removal of the printed material, the control unit is configured to control the notification unit to notify a user that the printed material has been removed.