Logic Circuitry Package for Print Component Communication
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Solution Overview
Problem
Existing printing systems face challenges in efficiently communicating and managing data between replaceable print apparatus components and the print apparatus, particularly in terms of identity, capabilities, status, and resource management, due to limitations in processing capacity and memory in these components.
Innovation Solution
The implementation of a logic circuitry package that includes a processor and memory, capable of executing commands and communicating via I2C protocol, allowing for addressable logic circuits to manage data and perform tasks such as authentication, sensor readings, and data processing, while switching between different addresses for secure and functional operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If replaceable print apparatus components include logic circuitry for communication and data management, then communication capability and data management are improved, but processing capacity and memory constraints worsen
Solution Approach 1:
The patent introduces a host apparatus as an intermediary that provides enhanced processing capacity and memory resources. The replaceable component's logic circuitry communicates with the host apparatus, which handles complex data management tasks, authentication, and resource allocation. This mediator approach allows the replaceable component to maintain communication capability while offloading processing demands to the host system.
Solution Approach 2:
The system is divided into a permanent host apparatus and replaceable components with integrated logic circuitry. This segmentation allows the complex processing functions to reside in the host while the replaceable components maintain simpler, dedicated functions with embedded logic for basic communication and status monitoring, reducing the processing burden on each individual replaceable component.
2Extent of automation
If logic circuitry is integrated into replaceable components for identity and status communication, then system intelligence is improved, but manufacturing complexity worsens
Solution Approach 1:
The host apparatus implements a universal interface and communication protocol (such as I2C) that can work with multiple types of replaceable components. The logic circuitry in replaceable components follows standardized communication patterns, allowing the same host system to manage diverse components without requiring custom integration for each type, thus reducing manufacturing complexity while maintaining system intelligence.
3Productivity
If multiple logic circuits are addressed via I2C protocol with address switching, then communication efficiency is improved, but address management complexity worsens
Solution Approach 1:
The I2C communication protocol implements a feedback mechanism where the host apparatus sends address bytes and receives acknowledgment signals from the targeted logic circuit. This feedback loop allows the host to dynamically manage multiple addressed circuits, switching between them efficiently through structured communication sequences that reduce address management overhead.
Data Source
AI summary
A logic circuitry package for a replaceable print apparatus component includes an interface and at least one logic circuit. The at least one logic circuit is configured to respond to communications sent to a first address via the interface and respond to communications sent to a second address via the interface. The at least one logic circuit is configured to in response to a hibernate command sent to the first address, respond to communications sent to the second address.