Printer Job Management with Pause State Retention
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Solution Overview
Problem
Existing printing apparatuses resume paused print jobs automatically after error removal, leading to poor usability for users who need to prioritize their own print jobs, as they cannot conveniently obtain the printing results of their jobs before errors are resolved.
Innovation Solution
A printing apparatus that continues the paused state of a print job after error removal, allowing users to select and resume either the paused job or a standby job for printing, with a display unit showing information on both jobs and accepting user instructions to prioritize interruption printing, and includes a verification unit for user verification to execute printing based on selected jobs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the printing apparatus automatically resumes the paused print job after error removal, then the productivity is improved by reducing user intervention, but the ease of operation deteriorates because users cannot prioritize their own print jobs
Solution Approach 1:
The system dynamically adjusts its behavior based on the presence of standby print jobs. When standby jobs exist, the system maintains the paused state allowing user selection. When no standby jobs exist, the system automatically resumes the paused job. This dynamic adaptation resolves the contradiction between automatic resumption efficiency and user control flexibility.
Solution Approach 2:
The system changes the operational parameter of the paused print job based on system state. The resumption behavior parameter is set to 'automatic' when no standby jobs exist, and 'manual selection' when standby jobs exist. This parameter change allows the system to optimize for different operational contexts.
2Ease of operation
If the printing apparatus maintains the paused state after error removal when standby jobs exist, then the ease of operation is improved by allowing user selection, but the productivity deteriorates due to additional user operations required
Solution Approach 1:
The system dynamically switches between manual selection mode and automatic resumption mode based on whether standby print jobs are present. This dynamic behavior provides user flexibility when needed while maintaining efficiency when no selection is required.
Solution Approach 2:
The system serves itself by automatically resuming the paused job when no user intervention is needed (no standby jobs). This self-service capability eliminates unnecessary user operations and maintains high productivity in scenarios where user selection is not required.
3Ease of operation
If the printing apparatus provides a pause screen for job selection, then the ease of operation is improved by displaying job information, but the device complexity increases due to additional display and interaction components
Solution Approach 1:
The display unit serves multiple functions: it displays error information, shows standby job information, and provides user interaction interface for job selection. By making the display unit multi-functional, the system avoids adding separate components for each function, thus reducing overall device complexity while maintaining ease of operation.
Data Source
AI summary
A printing apparatus includes a printing unit that executes printing based on a print job, and a detector that detects occurrence and removal of an error in the printing apparatus. When removal of an error is detected, the printing unit continues a paused state of the print job paused by the error.