Printer Job Cancellation via Suspension Cause Monitoring
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Solution Overview
Problem
In office environments, printers often fail to execute print jobs due to suspension causes like paper jams or toner shortages, and existing solutions do not effectively manage the automatic cancellation of print jobs when such issues persist.
Innovation Solution
A printing apparatus with a reception unit for receiving print jobs and an execution unit that cancels print jobs if a setting time elapses without the resolution of the suspension cause, ensuring that new print jobs are also canceled in such conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the printer waits for suspension cause removal before executing print jobs, then printing reliability is improved, but productivity deteriorates due to unnecessary waiting time
Solution Approach 1:
The printer automatically monitors suspension causes and executes print jobs independently when conditions are met, without requiring user intervention to check or cancel jobs. The system serves itself by autonomously determining when to proceed with printing despite previous suspension causes.
Solution Approach 2:
The system changes the operational parameter from 'wait for suspension cause removal' to 'proceed when suspension cause is cleared', using the clearance of suspension cause as a dynamic parameter to trigger automatic job execution.
2Loss of time
If the printer automatically cancels print jobs after setting time elapses, then loss of time is reduced, but loss of information deteriorates as print job status may be lost
Solution Approach 1:
The system continuously monitors suspension cause status and provides feedback to the job execution unit, enabling real-time decisions about whether to execute or cancel print jobs based on current conditions rather than relying on fixed time-based cancellation.
Solution Approach 2:
The printer performs preliminary checks to determine if suspension causes are cleared before executing print jobs, preventing unnecessary cancellations and ensuring jobs are only proceeded with when conditions are appropriate.
3Productivity
If the printer executes new print jobs while suspension causes persist, then productivity is improved, but reliability deteriorates due to potential printing errors
Solution Approach 1:
The printer autonomously monitors its own suspension cause status and makes independent decisions about job execution, preventing execution when suspension causes are present without requiring external user intervention.
Solution Approach 2:
The system takes preliminary action to prevent execution of print jobs when suspension causes are detected, blocking potential printing errors before they occur by checking suspension cause status in advance.
Data Source
AI summary
A printing apparatus includes a reception unit configured to receive a print job, and an execution unit configured to execute printing of the print job received by the reception unit. The execution unit has a function of, in a case where a setting time or more elapses with a particular cause preventing the printing of the print job not being removed, canceling the printing of the print job. The execution unit has a function of canceling printing of a new print job received by the reception unit in a state where the setting time or more elapses with the particular cause not being removed.