Printer Sleep State End Processing Notification via Operation Unit Activation
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Solution Overview
Problem
Image forming apparatuses struggle to notify users that end processing is in progress during lengthy printer end processing events, especially when in a sleep state, as the operation unit is turned off, preventing display of end processing screens and blinking notifications.
Innovation Solution
The image forming apparatus is configured to receive an end notification and recover from the sleep state to the active state, turning on the operation unit and displaying end processing information, ensuring users are informed of ongoing end processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the image forming apparatus enters the sleep state to reduce power consumption, then power savings are achieved, but the operation unit turns off and cannot display end processing information to users
Solution Approach 1:
The system performs preliminary assessment of whether end processing is required before entering sleep mode. When an end notification is received while in sleep state, the system activates the operation unit to display end processing information, ensuring users are notified of ongoing operations without continuously maintaining the operation unit in an active state during normal sleep periods
Solution Approach 2:
The operation unit dynamically transitions between off and on states based on the reception of end notifications. The display control unit activates the operation unit only when necessary (upon receiving end notification) and keeps it off during normal sleep state, allowing the system to adapt its operational characteristics to current needs while maintaining power efficiency
2Loss of energy
If the operation unit remains off during sleep state, then power consumption is reduced, but users cannot be notified of end processing in progress
Solution Approach 1:
The system prepares by establishing a monitoring mechanism that detects end notifications even when in sleep state. Upon detecting such notifications, the system proactively activates the operation unit to provide user notification, ensuring that power savings are maintained during normal operation while user communication is restored when necessary
Solution Approach 2:
The system implements a feedback mechanism where the reception unit monitors for end notifications and triggers the display control unit to activate the operation unit when needed. This feedback loop ensures that users receive appropriate notifications about end processing while the system maintains sleep state for power efficiency during periods when notifications are not required
Data Source
AI summary
An image forming apparatus has a first power state and a second power state lower in power than the first power state, the operation unit being turned off in the second power state. The image forming apparatus includes a display control unit configured to control a display on an operation unit, a reception unit configured to receive an end notification for end processing of the image forming apparatus, and a processing unit configured to perform, in response to receipt of the end notification by the reception unit, the end processing of the image forming apparatus, wherein, in response to receipt of the end notification by the reception unit when the image forming apparatus is in the second power state in which the operation unit is turned off, the display control unit turns on the operation unit.