Image Forming Apparatus Local Contract Enforcement
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Solution Overview
Problem
Printers with dedicated cartridges face restrictions in image formation processing when consumption information cannot be continuously transmitted externally, limiting their functionality without external communication.
Innovation Solution
An image forming apparatus with an operation control portion, memory for storing availability information based on a specified contract, and a determination portion that controls operations based on usage requests, allowing functions to be executed locally without external communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the printer uses a dedicated cartridge for flat-rate print processing, then the printing function is provided, but the image formation processing is restricted when consumption information cannot be transmitted externally
Solution Approach 1:
The determination portion automatically determines whether to allow image formation processing based on consumption information stored in the memory, without requiring external communication. The system serves itself by using locally stored contract information to make usage decisions, eliminating the need for continuous external verification while maintaining proper access control.
Solution Approach 2:
The consumption information and contract details are pre-stored in the memory before the printing operation occurs. This preliminary storage of necessary information allows the determination portion to make immediate decisions about processing permission without needing to communicate externally at the time of usage, thus preventing restrictions on image formation processing.
2Reliability
If the printer requires external communication to verify consumption information, then contract compliance is ensured, but the printer cannot perform functions without external communication
Solution Approach 1:
The system maintains contract compliance through self-service by using the determination portion to automatically verify stored consumption information against contract terms. This eliminates the need for external communication while ensuring reliable contract adherence, as the printer independently manages its own compliance verification using pre-stored information.
Solution Approach 2:
Contract information and consumption data are preliminarily stored in the memory during setup or initial communication. This preliminary action enables the printer to execute functions locally without requiring external communication at the time of operation, while still maintaining reliable contract compliance through the determination portion's verification of stored information.
Data Source
AI summary
To provide a technique in which an image forming process is not restricted even when consumption information cannot be transmitted to the outside such as a server in an image forming apparatus. The image forming apparatus includes an operation control portion for executing a plurality of functions for forming an image; a memory that stores availability information of the plurality of functions according to a specified contract that defines usage conditions of the image forming apparatus; and a determination portion that determines, when a usage request for at least one of the plurality of functions is received, with reference to the availability information, whether or not the at least one of the plurality of functions corresponding to the usage request received is configured to be used, in which the operation control portion controls operation of the image forming apparatus in accordance with a determination result of the determination portion.