Canon kabushiki kaisha (20240103409). IMAGE FORMING APPARATUS simplified abstract

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IMAGE FORMING APPARATUS

Organization Name

canon kabushiki kaisha

Inventor(s)

HIROKI Eguchi of Kanagawa (JP)

YUSAKU Iwasawa of Shizuoka (JP)

IMAGE FORMING APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240103409 titled 'IMAGE FORMING APPARATUS

Simplified Explanation

The abstract describes a patent application for a controller in an image forming apparatus that controls the transfer voltage applied to a transfer member during different periods of the printing process to ensure proper toner transfer.

  • The controller adjusts the transfer voltage so that no voltage is applied to the transfer member or a voltage of opposite polarity to the toner charge polarity is applied during a specific period.
  • In a second period, after the first period and before the toner image reaches the transfer portion, the controller applies a first voltage of the same polarity as the toner charge polarity and a second voltage of the same polarity as the first voltage but larger in absolute value to the transfer member.

Potential Applications

This technology can be applied in various types of image forming apparatus such as printers, copiers, and multifunction devices to improve the quality and accuracy of printed images.

Problems Solved

1. Ensures proper toner transfer onto the paper for high-quality prints. 2. Prevents image defects and inconsistencies in the printing process.

Benefits

1. Improved print quality and accuracy. 2. Consistent and reliable toner transfer. 3. Enhanced overall performance of the image forming apparatus.

Potential Commercial Applications

This technology can be utilized in commercial printing services, office environments, and manufacturing industries where high-quality printing is essential for business operations.

Possible Prior Art

There may be prior art related to controlling transfer voltages in image forming apparatus to optimize toner transfer efficiency and print quality. Researching existing patents and publications in the field of image forming technology could reveal similar innovations.

Unanswered Questions

How does this technology impact energy consumption in image forming apparatus?

This article does not address the energy efficiency aspect of the controller's operation. It would be interesting to explore how the optimization of transfer voltages affects the overall energy consumption of the image forming apparatus.

What are the potential maintenance requirements for the controller in the long term?

The article does not discuss the long-term maintenance needs of the controller. Understanding the maintenance schedule and requirements for this technology could provide insights into its durability and reliability over time.


Original Abstract Submitted

a controller of an image forming apparatus controls a transfer voltage applying portion so that a voltage is not applied to a transfer member or a voltage of an opposite polarity to a normal charge polarity of toner is applied to the transfer member, in a first period including at least a period, after rotation of a photosensitive member and a developing member, from first arrival of a first region at a transfer portion to first arrival of a second region at the transfer portion, and so that at least a first voltage of the same polarity as the normal charge polarity and a second voltage of the same polarity as the first voltage and larger in absolute value than the first voltage are applied to the transfer member in a second period after the first period and before a toner image reaches the transfer portion.