Print Count Control for Variable Color and Monochrome Rental Rates
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Solution Overview
Problem
Existing rental printing services lack the ability to dynamically adjust charge rates based on differences in printing methods such as paper size and color setting, failing to meet the diverse needs of customers.
Innovation Solution
A printing apparatus equipped with a print permission condition mode that counts prints differently based on monochrome or color printing and paper size, allowing for dynamic adjustment of charge rates and print restrictions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed printing count limit is applied to all printing methods, then the system is simple to manage, but it cannot provide differentiated charge rates for different printing methods (color vs. monochrome, different paper sizes)
Solution Approach 1:
The printing count management is segmented into multiple independent counters, each tracking a specific printing method (e.g., color printing on A4, monochrome printing on A4, color printing on Letter, etc.). This allows differentiated charge rates to be applied to each segment while maintaining simple management within each segment.
Solution Approach 2:
Different charge rates and counting rules are applied locally to different printing methods based on their specific characteristics. For example, color printing may consume more resources and thus have a higher charge rate, while monochrome printing has a lower charge rate. Each printing method has its own customized counting and charging parameters.
2Adaptability or versatility
If printing is completely stopped when the permitted number of pages is reached, then resource overuse is prevented, but users cannot continue to use the apparatus even if they are willing to pay additional fees
Solution Approach 1:
The printing permission system is made dynamic by allowing the printing upper limit to be changed during the rental period. Users can request to increase their printing limit by paying additional fees, and the system dynamically adjusts the permission levels without requiring contract renewal or service interruption.
Solution Approach 2:
The printing upper limit parameter can be modified during the rental period based on user needs and additional payments. The system allows changing the permitted number of pages from the initial setting to provide flexible service options, transforming a static parameter into a dynamic one that adapts to user requirements.
Data Source
AI summary
A printing apparatus includes a printing unit, at least one processor, and a memory in communication with the processor storing instructions that, when executed by the processor, cause the processor to display a screen for accepting a first quantity by which a printing count value is counted up when an image is printed in monochrome on one sheet and a second quantity by which the printing count value is counted up when an image is printed in color on one sheet and restrict printing performed by the printing unit based on the printing count value and a printing upper limit value.