Process Cartridge Detection Circuit for Reliable Parameter Transmission

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Solution Overview

Problem

Existing laser printing technologies face challenges in ensuring the reliability of electrical connections and circuits within the process cartridge, which can lead to unstable information transmission and affect printing quality.

Innovation Solution

A detection circuit is implemented in the process cartridge, comprising a detection unit, an information feedback unit, and a control unit. This circuit switches between two states to provide feedback information to the image-forming apparatus, allowing it to accurately obtain parameters related to the process cartridge and ensure reliable information transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the detection circuit continuously provides feedback information to the image-forming apparatus, then the parameter acquisition is continuous, but the reliability of information transmission cannot be detected

Engineering Contradiction:
Improvereliability of information transmissionVSAvoiddetection circuit complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The detection circuit switches between first and second states periodically to provide feedback information. In the first state, feedback information related to the first parameter is provided; in the second state, feedback information not related to the first parameter is provided. This periodic switching allows the image-forming apparatus to detect changes in feedback information and determine whether the information feedback unit meets expectations, thereby improving reliability detection without requiring continuous complex monitoring.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The detection circuit provides feedback information to the image-forming apparatus based on the connection state between the detection unit and the information feedback unit. By controlling the connection state to switch between first and second states according to switching information, the system creates a feedback mechanism where the image-forming apparatus can assess the reliability of the information feedback unit based on changes in the feedback information over time.

Inventive Principle:
Principle #23Feedback

2Reliability

If the detection circuit switches between first and second states to provide feedback information, then the reliability of information transmission can be detected, but the device complexity increases

Engineering Contradiction:
Improvereliability of information transmissionVSAvoiddetection circuit complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The detection circuit dynamically switches between first and second states based on switching information from the image-forming apparatus. This dynamic state switching allows the system to adaptively provide different types of feedback information, enabling reliability detection while maintaining a relatively simple circuit structure that can change its operational state rather than requiring multiple fixed complex monitoring paths.

Inventive Principle:
Principle #15Dynamics

3Measurement precision

If the connection state between the detection unit and information feedback unit is controlled to switch states, then the feedback information reliability can be determined, but the control complexity increases

Engineering Contradiction:
Improveparameter acquisition accuracyVSAvoidcontrol unit complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The control unit controls the connection state to switch between first and second states according to switching information outputted by the image-forming apparatus. This preliminary action of state switching before feedback information is provided allows the system to prepare different feedback paths in advance, enabling accurate parameter acquisition without requiring complex real-time control during the feedback transmission.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20250147459A1Detection circuit, information processing apparatus, process cartridge and detection method
Publication Date: 2025.05.08 ZHUHAI PANTUM ELECTRONICS CO LTD
  • US20250147459A1 patent drawing
  • US20250147459A1 patent drawing
  • US20250147459A1 patent drawing

AI summary

The present disclosure provides a detection circuit, an information processing apparatus, a process cartridge and a detection method. The detection circuit includes a detection unit, configured to output a first parameter related to the process cartridge; an information feedback unit, configured to be electrically connected to the detection unit and provide the image-forming apparatus with feedback information according to a connection state between the detection unit and the information feedback unit; and a control unit, configured to control the connection state between the detection unit and the information feedback unit to switch between the first state and the second state according to switching information outputted by the image-forming apparatus. In the first state, the feedback information is related to the first parameter, and the image-forming apparatus is capable of obtaining the first parameter; and in the second state, the feedback information is not related to the first parameter.