Display System Power State Control for Image Forming Apparatus
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Solution Overview
Problem
Conventional image forming apparatuses cancel their power saving states unintentionally during cooperative operations with mobile terminals, leading to unnecessary power consumption and potential errors when receiving operations via the operation panel or mobile terminal, especially when in power saving modes.
Innovation Solution
A display system and image forming apparatus that maintain or change the power saving states of operation displays based on cooperative operation status, ensuring that power saving states are not canceled unintentionally, by using a CPU to control display states and manage notifications during cooperative operations between an image forming apparatus and a remote operation panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the image forming apparatus receives a key operation via the operation panel while in power saving state during cooperative operation, then the operation can be executed, but the power saving state is unintentionally canceled causing increased power consumption
Solution Approach 1:
The patent applies local quality by differentiating the response to key operations based on the operational context. When cooperative operation is active, key operations are handled differently than when it is inactive - specifically, the operation panel maintains its power saving state even when receiving key operations during cooperative operation, whereas it would normally wake up. This context-dependent local differentiation resolves the contradiction by allowing operation reception without triggering the global power state change.
Solution Approach 2:
The patent implements dynamics by making the power saving state behavior dynamic and context-dependent rather than static. The operation panel's response to key operations changes based on whether cooperative operation is currently active. This dynamic adjustment allows the system to adapt its power management strategy according to the operational context, enabling operation reception during cooperative operation while maintaining power saving state.
2Loss of energy
If the operation panel is in power saving state during cooperative operation, then power is saved, but error messages and notifications cannot be displayed on the operation panel
Solution Approach 1:
The patent employs the intermediary principle by introducing the mobile terminal as a mediator for displaying error messages and notifications. When the operation panel is in power saving state during cooperative operation, instead of attempting to display error messages on the dormant operation panel, the system uses the mobile terminal (which is already active for cooperative operation) to convey error information to the user. This intermediary approach allows power saving to be maintained while ensuring error information is still communicated effectively.
3Reliability
If the power saving state is canceled to display error messages during job execution, then error notification is provided, but unnecessary power consumption occurs during cooperative operation
Solution Approach 1:
The patent applies local quality by making the error notification mechanism context-dependent. During cooperative operation, error notifications are handled locally through the mobile terminal rather than through the operation panel's display system. This localized error notification approach through the mobile terminal intermediary ensures reliable error communication while avoiding the unnecessary power consumption that would result from canceling the operation panel's power saving state.
Data Source
AI summary
A display system includes first and second operation displays, wherein the display system causes the first and second operation displays to perform a cooperative operation, in a case where a predetermined operation has been received via the first operation display when the first operation display is in a power saving display state and the first and second operation displays are not performing the cooperative operation, the state of the first operation display is changed to the normal display state, and in a case where the predetermined operation has been received via the first operation display when the first operation display is in the power saving display state and the second operation display is in the normal display state and the first and second operation displays are performing the cooperative operation, the display system maintains the first operation display in the power saving display state.