Printing Apparatus Storage Management by Job Validity
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Solution Overview
Problem
Conventional printing apparatuses face issues with storage section occupancy due to long-term stored printing jobs, as they do not effectively manage storage capacity based on the validity period of printing jobs, leading to prolonged storage of jobs with extended expiration dates.
Innovation Solution
A printing apparatus that communicates with external devices, determines a predetermined storage capacity based on the validity period of received printing jobs, and only stores jobs in the storage section if the available free-space capacity exceeds this determined capacity, ensuring that jobs with longer validity periods do not occupy storage for extended periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If printing jobs with long validity periods are stored in the storage section, then printing flexibility is improved, but storage section occupancy time increases
Solution Approach 1:
The system performs preliminary evaluation of storage capacity requirements before accepting printing jobs. The determining section calculates the storage capacity needed based on the validity period of each job, and the processing section only stores jobs where sufficient free space is available. This prevents long-validity jobs from occupying storage indefinitely.
Solution Approach 2:
The system changes the storage management approach by introducing a validity period-based capacity determination mechanism. Instead of uniform storage treatment, the system adjusts storage allocation based on the validity period parameter, using longer validity periods as criteria for larger storage capacity requirements.
2Ease of operation
If printing jobs are stored without capacity management, then job acceptance is simplified, but storage capacity is inefficiently utilized
Solution Approach 1:
The system implements a feedback mechanism where the obtaining section continuously monitors the free-space capacity of the storage section, and the determining section uses this information to decide whether to store incoming printing jobs. This feedback loop ensures efficient storage utilization while maintaining simple job acceptance procedures.
Solution Approach 2:
The system performs preliminary storage capacity assessment before accepting jobs. The processing section evaluates whether sufficient free space exists based on the job's validity period requirements, and only stores jobs that meet the capacity criteria, preventing future storage shortages.
Data Source
AI summary
A printing apparatus includes: a receiving section which receives a printing job having a term of validity and printing data from an external device; a storage section in which the printing job received by the receiving section is stored; an input section which accepts a printing instruction to perform printing based on the printing job stored in the storage section; a printing section which performs the printing based on the printing job stored in the storage section in a case that the input section accepts the printing instruction; and a processing section which is configured to include: an obtaining section configured to obtain an information of free-space capacity of the storage section under a condition that the receiving section receives the printing job; and a determining section configured to determine a predetermined storage capacity for the printing job based on the term of validity of the printing job.