Photosensitive Drum Condition Detection Through Shared Contacts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image-forming apparatuses face issues with abnormal image output due to damage or dirt on the photosensitive drum (OPC) surface, requiring complex and costly modifications to add new terminals for signal detection.
Innovation Solution
A process cartridge with a photosensitive drum and potential detection part that detects electrical signals on the image-forming region without adding new terminals to the image-forming apparatus, using a potential detection part with a specific distance ratio to minimize interference from inherent signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a new terminal for receiving detection signal is added to the image-forming apparatus, then the detection capability of photosensitive drum condition is improved, but the structural complexity and cost increase
Solution Approach 1:
The electrical contact portion is designed to serve multiple functions: it both supplies power to the photosensitive drum and receives detection signals from the potential detection part. This multi-functional design eliminates the need for separate dedicated detection terminals, thereby maintaining detection capability while avoiding increased structural complexity
Solution Approach 2:
The patent combines the power supply function and signal detection function into a single electrical contact portion. By merging these two functions that were previously handled by separate terminals, the system achieves reliable detection without adding structural complexity or cost
2Reliability
If a new terminal for receiving detection signal is added to the image-forming apparatus, then the detection capability of photosensitive drum condition is improved, but the manufacturing cost increases
Solution Approach 1:
The electrical contact portion is designed to serve multiple functions: it both supplies power to the photosensitive drum and receives detection signals from the potential detection part. This multi-functional design eliminates the need for separate dedicated detection terminals, thereby maintaining detection capability while avoiding increased structural complexity
Solution Approach 2:
The patent combines the power supply function and signal detection function into a single electrical contact portion. By merging these two functions that were previously handled by separate terminals, the system achieves reliable detection without adding structural complexity or cost
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively transmits electrical signals to determine the condition of the photosensitive drum without increasing design complexity or cost, ensuring normal operation and reducing wear on the drum surface.
Implementation Method 1
a potential detection part, configured to detect an electrical signal on the image-forming region
Implementation Method 2
a photosensitive drum, rotatably installed at the cartridge body, where the photosensitive drum is configured with an image-forming region capable of generating an electrostatic latent image
Data Source
AI summary
The present disclosure provides a storage apparatus, a process cartridge and a connection apparatus. The process cartridge includes a cartridge body; a photosensitive drum, rotatably installed at the cartridge body, where the photosensitive drum is configured with an image-forming region capable of generating an electrostatic latent image; a potential detection part, configured to detect an electrical signal on the image-forming region; a storage apparatus, where the storage apparatus includes an electrical contact configured to be electrically connected to an electrical contact portion disposed on the image-forming apparatus main body; and a first electrical connection part, where the first electrical connection part includes a transmission terminal; and the transmission terminal is electrically connected to the electrical detection part and configured to be electrically connected to the electrical contact portion.