Printer Notification Thresholds for Cartridge Subscription Status
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Solution Overview
Problem
Existing image forming apparatuses do not effectively notify users about low printing material levels, especially when users are subscribed to automatic cartridge delivery services, leading to potential disruptions in printing operations.
Innovation Solution
An image forming apparatus equipped with a connector, print executor, communication interface, and controller that monitors the residual quantity of printing material, determines subscription status, and sends notifications to users based on subscription and material levels, ensuring timely delivery of new cartridges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system notifies users when printing material is low, then users can replace cartridges in time, but users subscribed to automatic delivery services receive unnecessary notifications
Solution Approach 1:
The system performs preliminary classification of users into subscription and non-subscription groups before sending notifications. By checking subscription status in advance and setting different threshold values accordingly, the system avoids sending unnecessary notifications to subscription users while ensuring timely notifications to non-subscription users.
Solution Approach 2:
The system changes the notification trigger parameter (threshold value) based on user subscription status. Non-subscription users receive notifications at a higher threshold (first threshold value), while subscription users receive notifications at a lower threshold (second threshold value), optimizing notification timing for each group.
2Device complexity
If the system uses a single threshold value for all users, then the notification system is simple, but subscription users are notified too early causing unnecessary alerts
Solution Approach 1:
The system applies different threshold values to different user groups based on their subscription status. Non-subscription users have a higher threshold while subscription users have a lower threshold, creating localized optimization for each group's notification timing needs.
Solution Approach 2:
The system pre-classifies users into different groups based on subscription status and assigns appropriate threshold values to each group before notifications are triggered, avoiding the need for complex real-time calculations while maintaining accuracy.
3Ease of operation
If the system notifies subscription users at the same threshold as non-subscription users, then all users receive consistent notifications, but subscription users are notified before actual need causing disruption
Solution Approach 1:
The system changes the notification threshold parameter based on subscription status. By setting a lower threshold for subscription users, the system ensures notifications are sent only when truly necessary, maintaining printing operation efficiency while still providing consistent service across all user types.
Data Source
AI summary
An image forming apparatus includes a connector to which a cartridge containing printing material is connectable and a controller. The controller stores a subscription status indicating whether a user is subscribed to a specific service, acquires first information indicating a residual quantity of the printing material, transmits the first information to a sever, and determines whether the user is subscribed to the specific service. Under the specific service, a new cartridge is delivered by transmitting the first information. When not subscribed to the specific service and the residual quantity is a first threshold value or less, the controller notifies the user that the residual quantity is low. When subscribed to the specific service and the residual quantity is a second threshold value or less, the controller notifies the user that the residual quantity is low. The second threshold value is below the first threshold value.