Print Job Scheduling by Jam Occurrence Rate
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Printing apparatuses often experience recurring paper jams, leading to inefficiencies where jobs with high jam occurrence rates delay jobs with low jam rates, causing unnecessary waiting and operational disruptions.
Innovation Solution
A printing apparatus that prioritizes jobs based on jam occurrence rates, delaying or rescheduling high-jam-risk jobs to minimize paper jams by comparing and adjusting print conditions such as paper type and tray usage, and optionally canceling high-risk jobs or changing settings to reduce jam likelihood.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If printing jobs are processed in the order they are received, then first-come-first-served fairness is maintained, but jobs with high jam occurrence rates cause frequent paper jams that delay subsequent jobs
Solution Approach 1:
The system performs preliminary analysis of printing conditions (paper type, tray selection, printing mode) before executing the printing job. By calculating the occurrence rate of paper jams based on historical data for each combination of conditions, the system proactively identifies high-risk jobs and adjusts their execution order or conditions to prevent jams before they occur.
Solution Approach 2:
The printing job execution order is made dynamic rather than static. The control section dynamically adjusts the execution sequence based on real-time calculations of jam occurrence rates for different printing conditions. Jobs with lower jam risk are prioritized, while high-risk jobs are delayed or have their conditions modified, creating a flexible, adaptive scheduling system.
2Reliability
If printing conditions are changed to reduce jam occurrence, then paper jam frequency decreases, but printing quality or user requirements may not be met
Solution Approach 1:
The system implements feedback by continuously monitoring paper jam occurrences and using this information to calculate occurrence rates for different printing conditions. This feedback loop allows the system to learn from past performance and make informed decisions about job scheduling and condition optimization, balancing reliability with user requirements.
Solution Approach 2:
The system changes parameters such as paper type, tray selection, or printing mode for specific jobs based on calculated jam occurrence rates. By dynamically adjusting these printing parameters, the system reduces the likelihood of paper jams while still attempting to meet user requirements, finding an optimal balance between reliability and adaptability.
Data Source
AI summary
A printing apparatus includes a storage section which stores printing jobs to be printed on a recording paper sheet; a transport section which transports the recording paper sheet; a printing section which performs the printing on the recording paper sheet transported by the transport section based on one of the printing jobs stored in the storage section; an occurrence rate judging section which calculates an occurrence rate of a jam of the recording paper sheet in the transport section during the printing based on each of the printing jobs stored in the storage section, and which compares a first occurrence rate which is the occurrence rate of a first printing job stored first in the storage section with a second occurrence rate which is the occurrence rate of a second printing job stored second in the storage section; and a control section which controls the printing section.