Printer Toner Remaining Sheet Prediction From Usage History
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Solution Overview
Problem
Existing image forming apparatuses often replace toner cartridges prematurely due to inaccurate toner level estimation, leading to unnecessary waste and resource inefficiency.
Innovation Solution
A system comprising a server and image forming apparatus that calculates the remaining number of printable sheets and days based on usage history, average print ratio, and current toner level, transmitting this information to a user terminal to avoid premature replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If toner cartridges are replaced based on simple percent values, then the operation is simple, but the measurement precision is low leading to premature replacement
Solution Approach 1:
The system changes from displaying only percent values to displaying multiple parameters including remaining sheet count, remaining days, and usage patterns. This allows users to make more informed decisions about toner replacement while maintaining simple operation through automated calculations.
Solution Approach 2:
The system introduces an intermediary calculation layer that processes the percent value along with usage history and print ratios to generate more accurate predictions. This intermediary layer reconciles the simplicity of percent-based monitoring with the need for precise replacement timing.
2Reliability
If toner cartridges are replaced early to ensure availability, then the reliability is high, but the loss of substance increases due to waste
Solution Approach 1:
The system performs preliminary actions by calculating and notifying users in advance of the actual toner depletion point. By providing predicted remaining days and sheet counts, users can plan replacements optimally without premature action, thus reducing waste while ensuring availability.
Solution Approach 2:
The system implements feedback by continuously monitoring usage patterns and adjusting predictions accordingly. This feedback loop allows the system to learn from actual usage and improve the accuracy of replacement timing recommendations, balancing reliability with waste reduction.
3Measurement precision
If the system calculates remaining sheets and days based on usage history, then the measurement precision improves, but the device complexity increases
Solution Approach 1:
The system applies self-service by automatically collecting usage data, calculating print ratios, and generating predictions without requiring user intervention. This automates the complex calculations while keeping the user interface simple, effectively hiding the complexity from the end user.
Solution Approach 2:
The system achieves universality by using the same calculation framework across different toner cartridges and usage scenarios. The multi-functional calculation engine handles various print types, speeds, and cartridge capacities through a unified approach, managing complexity through standardization.
Data Source
AI summary
According to one embodiment, a server for a printer system includes a communication interface and a processor. The communication interface receives, from an external image forming apparatus, a first number of standard printable sheets of an installed toner cartridge, a first average print ratio for the toner cartridge, a first average number of printed sheets per day for the first toner cartridge, and a first remaining amount of toner in the installed toner cartridge, and transmits at least one of a number of remaining printable sheets or a number of remaining printable days to an external information terminal. The processor calculates the number of remaining printable sheets and the first number of remaining printable days based on the first number of standard printable sheets, the first average print ratio, the first average number of printed sheets, and the first remaining amount of toner.