Printer Power Saving Mode Delay for Correction Process Completion
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Solution Overview
Problem
Printers face issues with power saving modes, where correction processes for printing properties are incomplete due to premature shifts, leading to unreliable correction values and wasted processes when returning to power supply mode.
Innovation Solution
A printer system that delays shifting to power saving mode until completion of correction processes, ensuring accurate correction values by executing first and second correction processes as a set when specific conditions are met, thereby reducing the need for re-execution of processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the printer shifts to power saving mode immediately when the shift condition is met, then power consumption is suppressed, but correction processes are interrupted and correction values become unreliable
Solution Approach 1:
The printer checks whether a correction process is currently being executed before shifting to power saving mode. If a correction process is ongoing, the printer completes it first. This preliminary check ensures that correction processes are not interrupted, maintaining the reliability of correction values while still enabling power saving mode transitions when appropriate.
2Loss of energy
If the printer shifts to power saving mode during correction process, then power consumption is reduced, but the correction process is wasted and must be re-performed
Solution Approach 1:
The printer performs a preliminary check to determine if a correction process is being executed before initiating the power saving mode transition. When a correction process is detected, the system waits for its completion before shifting modes, preventing waste of the correction process and avoiding the need for re-execution, thus reducing the time until printing starts.
Solution Approach 2:
The printer continuously monitors the execution state of correction processes and uses this feedback information to control the power saving mode transition. When the monitoring detects that a correction process is ongoing, it prevents the mode shift; when the process completes, it allows the transition. This feedback mechanism optimizes both power consumption and processing efficiency.
3Reliability
If the printer executes multiple correction processes as a set, then accurate correction values are obtained, but the time required increases
Solution Approach 1:
The printer combines multiple correction processes into a single execution unit that must complete all processes before the power saving mode can be activated. This merging ensures that correction values are obtained accurately through complete execution of all necessary correction processes, while the system optimizes the overall timing to prevent unnecessary re-execution.
Data Source
AI summary
A printer includes: a printing unit; a processor; and memory storing instructions that, when executed by the processor, causing the printer to perform operations comprising: shifting from a power supply mode to a power saving mode in case that a shift condition from the power supply mode to the power saving mode is met; executing a correction processing group that includes a first correction process in case that a first execution condition is met, and a second correction process unit in case that a second execution condition is met after the execution of the first correction process is completed; and delaying the shifting from the power supply mode to the power saving mode until completion of the second correction process, when both execution condition are met and when the execution of the first correction process has started and the execution of the second correction process is not completed.