Power Supply Control Unit for Automatic Activation in Printers
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Solution Overview
Problem
Information processing apparatuses, such as printing devices without a soft switch, fail to activate automatically when setting information in the activation internal memory is rewritten from 'AUTO' to 'SOFT OFF' mode due to the absence of a user-operated power switch, resulting in a standby state waiting for user intervention.
Innovation Solution
Incorporating a power supply control unit that monitors and adjusts the activation state by setting a specific signal to allow automatic activation when the stored activation information indicates a 'SOFT OFF' mode, ensuring the device transitions to a standby state even without a user-operated power switch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the activation internal memory stores 'SOFT OFF' mode information, then the device waits for user input to activate, but the device cannot activate automatically when no soft switch is provided
Solution Approach 1:
The power supply control unit automatically detects when activation mode information is rewritten and self-corrects by forcing the activation signal to a specific level, enabling automatic activation without user intervention even when setting information is inadvertently changed
Solution Approach 2:
The system continuously monitors the activation mode information in the activation internal memory and uses feedback control to detect when rewriting occurs, triggering automatic correction by the power supply control unit to maintain reliable activation behavior
2Extent of automation
If the power supply control unit forces activation signal to specific level, then automatic activation is enabled, but the user-operated soft switch functionality is bypassed
Solution Approach 1:
The power supply control unit preemptively forces the activation signal to a specific level when rewriting is detected, preventing the system from entering a non-activatable state and ensuring automatic activation occurs despite the detected mode change
Data Source
AI summary
An information processing apparatus includes a storage unit configured to store information related to an activation of the information processing apparatus, a control unit configured to perform a control such that, in a case where the information stored in the storage unit relates to a first activation, the information processing apparatus is shifted into a standby state when power is supplied to the information processing apparatus, and in a case where the stored information relates to a second activation, the information processing apparatus is shifted into the standby state when the power is supplied to the information processing apparatus and also a signal input to the control unit is put into a particular state, and a power supply control unit configured to put the signal input to the control unit into the particular state when the information processing apparatus is not shifted into the standby state even when the power is supplied.