Printing Apparatus Quality Control and Sheet Waste Reduction
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Solution Overview
Problem
Printing apparatuses often waste high-quality recording sheets due to incomplete or unsatisfactory images printed during lowered image-forming quality conditions, leading to unnecessary waste, especially when printing jobs require specific sheet attributes.
Innovation Solution
A printing system with a first determining system to assess image-forming quality, a second determining system to evaluate print job attributes, and a restricting system to prevent execution of print jobs that meet restrictive requirements during lowered image-forming quality, allowing for user intervention to cancel or modify print jobs to avoid sheet waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If printing is continued under lowered image-forming quality conditions, then productivity is maintained, but manufacturing precision deteriorates due to incomplete or unsatisfactory images
Solution Approach 1:
The system performs preliminary determination of image-forming quality conditions before executing print jobs. By assessing colorant levels, device state, and environmental factors in advance, the system can prevent poor-quality printing before it occurs, thereby maintaining both productivity and image quality.
Solution Approach 2:
The system continuously monitors printing conditions and provides feedback to determine when image-forming quality has deteriorated. This feedback mechanism allows dynamic adjustment of printing operations to maintain quality standards while maximizing productivity when conditions permit.
2Manufacturing precision
If print jobs are restricted during lowered image-forming quality, then manufacturing precision is improved by preventing waste, but productivity decreases due to job execution restrictions
Solution Approach 1:
The system applies different quality control measures to different print jobs based on their specific attributes and requirements. High-value jobs with restrictive requirements receive stricter quality control, while less critical jobs may proceed under lowered conditions, optimizing the balance between quality and productivity.
Solution Approach 2:
The system dynamically changes operational parameters based on detected quality conditions. When image-forming quality deteriorates, the system modifies job execution parameters such as colorant application rates or printing speed to maintain quality standards for restricted jobs while allowing flexibility for non-restricted jobs.
3Productivity
If recording sheets are used under lowered image-forming quality, then productivity is maintained, but loss of substance increases due to waste of high-quality recording sheets
Solution Approach 1:
The system determines whether recording sheets should be used before printing occurs by assessing current image-forming quality conditions. This preliminary assessment prevents the waste of high-quality recording sheets on jobs that would produce unsatisfactory results, thereby reducing substance loss while maintaining productivity for appropriate jobs.
Data Source
AI summary
A printing apparatus capable of processing a print job and forming an image on a recording sheet based on the print job is provided. The printing apparatus includes a first determining system to examine an image-forming condition of the printing apparatus and determine as to whether the printing apparatus is under a condition of lowered image-forming quality, a second determining system to examine attribute of the print job and determine based on the attribute as to whether the print job meets restrictive requirement, by which the print job is restricted from being executed, when the printing apparatus is under the condition of lowered image-forming quality, and a restricting system to restrict execution of the print job at least partially when the second determining system determines that the print job meets the restrictive requirement.