Integrated Circuit Chip Synchronizing Signal Output for Image Forming Apparatus
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional image forming apparatuses face challenges in controlling the rotation of a rotating member when the rotation controller is disposed outside the integrated circuit chip, which affects the synchronization and operation of the image forming system.
Innovation Solution
The system includes an integrated circuit chip with a synchronizing signal output circuit, a data output circuit, an OR circuit, and an instruction signal output circuit, which outputs a synchronizing signal and image data signal to control the rotation of the motor by switching between frequency and output signals, allowing accurate rotation control even when the rotation controller is outside the chip.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the rotation controller is disposed outside the integrated circuit chip, then the device complexity is reduced and ease of manufacture is improved, but the synchronization and operation control precision deteriorates
Solution Approach 1:
The system is divided into two segments: the integrated circuit chip containing the synchronizing signal output circuit and the separate rotation controller. This segmentation allows the chip to be manufactured with high precision for synchronization signals while the rotation controller handles motor control externally, resolving the contradiction between ease of manufacture and rotation control precision.
Solution Approach 2:
The synchronizing signal output circuit on the integrated circuit chip acts as an intermediary, generating precise timing signals that are transmitted to the rotation controller. This intermediary ensures that even though the rotation controller is external, it receives accurate synchronization signals to maintain precise rotation control.
2Device complexity
If the rotation controller is disposed outside the integrated circuit chip, then the device complexity is reduced, but the synchronization between light source and rotating member deteriorates
Solution Approach 1:
The synchronizing signal output circuit performs preliminary action by generating synchronization signals in advance before the rotation control is needed. These pre-generated signals are transmitted to the rotation controller, ensuring that synchronization is established before the actual rotation control operation begins, thus maintaining synchronization reliability while reducing device complexity.
Solution Approach 2:
The system implements feedback mechanisms where the rotation controller receives synchronizing signals from the integrated circuit chip and adjusts its operation accordingly. This feedback loop ensures that the rotation controller maintains accurate synchronization with the light source despite being disposed outside the chip, resolving the contradiction between device complexity and synchronization reliability.
3Adaptability or versatility
If switching between frequency signal and output signal is implemented, then the rotation control adaptability is improved, but the signal control complexity increases
Solution Approach 1:
The rotation controller is designed with dynamic signal switching capability, allowing it to adapt between receiving frequency signals for speed control and output signals for position control. This dynamic adaptability is achieved through programmable logic that can switch between different control modes based on operational requirements, improving rotation control adaptability while keeping the signal control architecture relatively simple.
Data Source
AI summary
An integrated circuit chip configured to be connected to an image forming apparatus having a light source, a photosensitive member, and a light receiver includes a synchronizing signal output circuit, a data output circuit, an OR circuit, a chip-side communicator, first and second wiring lines. The synchronizing signal output circuit is configured to output a synchronizing signal for lighting the light source. The data output circuit is configured to output an image data signal for lighting the light source. The OR circuit is configured to output a lighting signal that is a logical sum of the synchronizing signal and the image data signal. The chip-side communicator is configured to transmit the lighting signal to the image forming apparatus. The first wiring line connects the synchronizing signal output circuit with the OR circuit. The second wiring line connects the data output circuit with the OR circuit.