Print Job Cancellation for Information Leakage Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
When an error occurs during a print job, existing printing systems face challenges in balancing information security and user-friendliness, as they either leave printed documents vulnerable to unauthorized access or require unnecessary user intervention to restart jobs.
Innovation Solution
A printing apparatus and method that includes a controller to store and manage print jobs, allowing for selective cancellation of jobs based on predetermined information, ensuring secure cancellation of sensitive jobs while preserving user-friendliness by avoiding unnecessary cancellations of non-sensitive jobs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all print jobs are automatically canceled when an error occurs, then information security is improved, but user-friendliness deteriorates due to unnecessary cancellations of non-sensitive jobs
Solution Approach 1:
The patent segments the print job queue into different categories based on security sensitivity. Each print job is tagged with cancellation information indicating whether it should be canceled upon error occurrence. This segmentation allows the system to apply different cancellation policies to different jobs, canceling only sensitive jobs while preserving non-sensitive ones, thus resolving the contradiction between information security and user-friendliness
Solution Approach 2:
The patent applies local quality by assigning different properties (cancellation flags) to different print jobs based on their security requirements. Sensitive jobs are marked with cancellation information while non-sensitive jobs are not, allowing the system to treat each job according to its specific security needs rather than applying a uniform cancellation policy to all jobs
2Productivity
If a subsequent job is preferentially executed when an error occurs, then processing efficiency is improved, but information security deteriorates due to prolonged interruption of the preceding job
Solution Approach 1:
The patent implements dynamic job management where the system can switch between different execution strategies based on job characteristics. When a sensitive job encounters an error, the system dynamically determines whether to cancel it or wait for error resolution based on the cancellation information associated with that specific job, allowing flexible adaptation to security requirements while maintaining efficiency
Data Source
AI summary
A printing apparatus capable of preventing information leakage without significantly lowering the user-friendliness when an error occurs during execution of a print job. A storage unit stores a plurality of print jobs. If an error occurs during execution of a print job, a print job out of the print jobs stored in the storage unit, to which is added predetermined information indicating to cancel the print job, is automatically canceled.