Medium Conveying Interface Control for Power and Communication Switching
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Solution Overview
Problem
Existing medium conveying and image reading apparatuses face challenges in enhancing user convenience, particularly in managing power consumption and communication with external devices based on operational states.
Innovation Solution
The apparatuses incorporate a conveyor and imager with circuitry to dynamically control communication and power supply to external devices based on conveyance and imaging states, allowing flexible management of power and communication modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If communication with external device is continuously allowed via interface, then user convenience is enhanced, but power consumption increases
Solution Approach 1:
The interface dynamically changes its operational state based on the conveyance state. When the conveyor is in operation, the interface switches to a low-power state or disconnects from the external device. When the conveyor is idle, the interface transitions to a high-performance state to allow communication. This dynamic state switching resolves the contradiction by adapting the interface behavior to current system conditions.
Solution Approach 2:
The interface modifies its communication parameters or connection status based on the conveyance state. Specifically, the system changes whether the interface allows communication or supplies power to the external device depending on whether the conveyor is operating. This parameter change enables the system to reduce power consumption during active conveyance while maintaining user convenience during idle periods.
2Reliability
If power is supplied to external device during conveyance, then external device functionality is maintained, but processing load increases
Solution Approach 1:
The power supply to the external device is dynamically controlled based on the conveyance state. During active conveyance, the interface stops supplying power to the external device, reducing processing load. When conveyance is complete or idle, power supply is restored to maintain external device functionality. This dynamic control resolves the contradiction between maintaining functionality and reducing processing load.
Solution Approach 2:
The system preliminarily determines the conveyance state before deciding whether to supply power to the external device. By checking the conveyance state in advance, the system can proactively adjust power supply settings to avoid unnecessary processing load during conveyance operations while ensuring functionality is maintained when needed.
Data Source
AI summary
A medium conveying apparatus includes a conveyor to convey a medium, an interface connectable to an external device, and circuitry configured to change whether to allow communication with the external device via the interface or whether to allow supplying power to the external device via the interface based on a state of conveyance by the conveyor.