18507546. IMAGE FORMING APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)
Contents
IMAGE FORMING APPARATUS
Organization Name
Inventor(s)
Shinji Katagiri of Kanagawa (JP)
IMAGE FORMING APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18507546 titled 'IMAGE FORMING APPARATUS
Simplified Explanation
The patent application describes a control unit in an image forming apparatus that can adjust the voltage applied to the transfer member based on the mode of operation, specifically during primary transfer onto an intermediate transfer belt.
- The control unit can switch between a first mode and a second mode of operation.
- In the second mode, the intermediate transfer belt rotates at a higher speed than in the first mode.
- The control unit ensures that the voltage applied to the transfer member during primary transfer in the second mode is lower in absolute value compared to the first mode.
Potential Applications
This technology can be applied in various types of image forming apparatus such as printers, copiers, and multifunction devices.
Problems Solved
1. Ensures efficient and effective transfer of developer image onto the intermediate transfer belt. 2. Prevents excessive voltage application during high-speed rotation, reducing wear and tear on components.
Benefits
1. Improved image quality and consistency. 2. Extended lifespan of transfer member and other related components. 3. Energy efficiency due to optimized voltage control.
Original Abstract Submitted
In an image forming apparatus including a transfer member that primarily transfers a developer image from an image bearing member onto an intermediate transfer belt by applying an electric current to an intermediate transfer belt in a circumferential direction, a control unit which executes a first mode in which to rotate the intermediate transfer belt and a second mode in which to rotate the intermediate transfer belt at a rotation speed higher than that in the first mode. The control unit performs control such that an absolute value of a second voltage to be applied to the transfer member in a case of performing primary transfer in the second mode is less than an absolute value of a first voltage to be applied to the transfer member in a case of performing the primary transfer in the first mode.
