Printer Engine Initialization Control During Power Saving Degeneracy
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Solution Overview
Problem
In image forming apparatuses, resuming power to the printer engine during power saving mode can worsen existing troubles if degeneracy control is being executed, as it forces initialization and calibration, potentially exacerbating the issue.
Innovation Solution
The image forming apparatus is configured to prevent engine initialization processing when activated in power saving mode with degeneracy control, ensuring that the printer engine is not activated until the degeneracy state is resolved, thereby avoiding calibration that could damage the engine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electric power supply to the printer engine is resumed and initialization is executed when a print instruction is received during power saving mode, then the printer engine can perform printing functions, but the trouble in the printer engine may be worsened
Solution Approach 1:
The system dynamically adjusts the initialization behavior based on the current operational state. When degeneracy control is active, the printer engine skips initialization upon power resumption during power saving mode, while normally it would perform initialization. This dynamic adaptation resolves the contradiction by making the system behavior flexible rather than fixed.
Solution Approach 2:
The system changes the operational parameters of the printer engine based on the detected state. Specifically, it modifies whether initialization is performed (a binary parameter) based on whether degeneracy control is active. This parameter change allows the system to avoid worsening existing troubles while maintaining printing functionality when appropriate.
2Manufacturing precision
If the printer engine is always initialized when activated from power saving mode, then printing quality can be ensured, but power consumption increases and existing troubles may be worsened
Solution Approach 1:
Instead of always performing full initialization when the printer engine is activated from power saving mode, the system applies partial action by skipping initialization when degeneracy control is active. This partial approach reduces power consumption without completely sacrificing printing capability, resolving the contradiction between quality assurance and energy efficiency.
Solution Approach 2:
The initialization behavior is made dynamic based on the operational state. When degeneracy control is detected, the system dynamically skips initialization to save power, while maintaining the option to perform initialization when in normal state. This dynamic adjustment resolves the fixed contradiction between always ensuring quality and always consuming power.
3Ease of operation
If initialization processing is executed when returning from power saving mode, then the printer engine can operate normally, but the trouble state may be exacerbated
Solution Approach 1:
The system uses feedback from the degeneracy control state detection to determine whether to perform initialization. When degeneracy control is active, the feedback signal prevents initialization, avoiding the exacerbation of existing troubles. This feedback mechanism resolves the contradiction by making initialization conditional rather than unconditional.
Solution Approach 2:
The system takes preliminary anti-action by detecting the degeneracy control state before attempting initialization. By proactively identifying the problematic state and preventing initialization beforehand, the system avoids worsening the trouble while still allowing normal operation when appropriate. This preliminary prevention resolves the contradiction between ensuring normal operation and avoiding trouble exacerbation.
Data Source
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AI summary
An image forming apparatus, and a method of controlling it. The apparatus performs, in a case where at least one function out of a plurality of functions of the apparatus ceases to be usable, degeneracy control for operating to provide functions other than the at least one function, and stores information indicating a degeneracy control state is entered. The apparatus controls so as to activate without initialization operation of an image forming mechanism in a case where it is determined that the activation is due to the return from a power saving mode and the information is stored and so as to activate with the initialization operation when the activation is due to a power of the apparatus being turned on.