Transfer Belt Speed Adjustment Synchronization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing image forming apparatuses experience variations in transfer position when the speed adjustment mechanism switches between different adjustment patterns regardless of the holding start timing or detection timing, leading to inconsistent image transfer onto the recording medium.
Innovation Solution
The image forming apparatus incorporates a speed adjustment mechanism that synchronizes the switching timing between the first and second adjustment patterns with the holding start timing or detection timing, ensuring consistent image transfer by adjusting the rotation speed of the transfer body accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the speed adjustment mechanism switches between the first adjustment pattern and the second adjustment pattern regardless of the holding start timing, then the rotation speed of the transfer body can be adjusted flexibly, but the transfer position where the image is transferred onto the recording medium varies
Solution Approach 1:
The control mechanism determines in advance whether to apply the first adjustment pattern or the second adjustment pattern based on the holding start timing. This preliminary determination ensures that the speed adjustment is synchronized with the holding operation, preventing variation in transfer position while maintaining flexible speed adjustment capability.
Solution Approach 2:
The system uses the holding start timing as feedback to dynamically select the appropriate adjustment pattern. By monitoring when the holding unit actually starts to hold the recording medium, the control mechanism can switch between adjustment patterns appropriately, ensuring consistent transfer position regardless of speed variations.
2Manufacturing precision
If the speed adjustment mechanism uses a fixed adjustment pattern, then the transfer position remains consistent, but the rotation speed cannot be optimized for different operating conditions
Solution Approach 1:
The system dynamically switches between the first adjustment pattern and the second adjustment pattern based on the holding start timing. This dynamic adaptation allows the rotation speed to be optimized for different operating conditions while maintaining consistent transfer position, as the control mechanism selects the appropriate pattern for each specific holding operation.
Solution Approach 2:
The system changes the speed adjustment parameters by selecting different adjustment patterns (first and second patterns) based on the holding start timing. This parameter change enables the rotation speed to be optimized for varying operating conditions while keeping the transfer position consistent through synchronized switching.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An image forming apparatus includes: a transfer belt with an outer peripheral surface onto which an image formed on a formation body is transferred, the transfer belt having an annular shape; a driving roll around which the transfer belt is wound and that causes the transfer belt to revolve; a transfer body that transfers, at a transfer region between the transfer body and the transfer belt, the image from the transfer belt to a recording medium while transporting the recording medium; a drive mechanism that rotationally drives the transfer body; a holding unit that holds the recording medium and that integrally moves with rotational movement of the transfer body so that the recording medium passes through the transfer region; and a speed adjustment mechanism that adjusts a rotation speed of the transfer body rotated by the drive mechanism each time the transfer body makes one rotation, that switches between a first adjustment pattern and a second adjustment pattern different from the first adjustment pattern each time the transfer body makes one rotation, and that synchronizes a switching timing, at which switching between the adjustment patterns is performed, with a holding start timing at which the holding unit starts to hold the recording medium.