Fujitsu Corporation

Tsutomu Kawai

Kunihiko Sato

Yoshihiro Tonomoto

Eiji Suzuki

Katsumi Sugimoto

Kenji Fuke

Masakazu Kinoshita

Keiko Tonai

Hidenori Fujioka

Hitoshi Yoshii

Shozo Tonai

Hirofumi Nakayasu

Youji Houki

Tsutomu Nagatomi

Masahiro Wanou

Katsuya Shimatsu

Takeo Kojima

Morihisa Kawahara

Kouichi Kobayashi

Kazuhiko Hamazoe

Kaneastu Uchiyama

Hitohiro Maeda

Masakazu Kanaka

Shinichirou Yamamoto

A system includes: processing circuitry and a database which stores target data to be accessed by a plurality of information processing apparatus each of which executes a software program that issues a request to access the target data, the request including version information regarding the software program which issued the request and is being updated from a first version to a second version. The processing circuitry is configured to: update the database by transferring data from a first database relating to the first version to a second database relating to the second version; receive the request from one of the plurality of information processing apparatuses during the updating of the database; and determine a transmission destination of the received request based on the version information included in the received request and a condition of whether or not the target data is transferred from the first database to the second database.

System, method, and computer-readable medium

A developing portion forms a toner image, which corresponds to a recording image, with a toner which has been electrically charged to a predetermined electrical potential. A transfer portion, to which an electric potential, different from the electric potential of the toner image, is applied, transfers the toner image onto a recording medium. A first transfer-electric-potential applying portion applies a transfer electric potential to the transfer portion. A carrying portion carries the recording medium so as to cause the recording medium to pass by the transfer portion. A second transfer-electric-potential applying portion sets the recording medium and the carrying portion to cause the recording medium and the carrying portion to have a predetermined electric potential corresponding to the transfer electric potential of the transfer portion.

Image forming apparatus

A developing device for developing an electrostatic latent image with a two-component developer comprises a developer container (46) including a developer-accumulating chamber (50), and a developer-agitating chamber (56) provided above the developer-accumulating chamber. A communication passage (64) is provided between the developer-agitating chamber and the developer-accumulating chamber, and is opened to the developer-agitating chamber to define an overflow opening for the developer. The device also comprises a developer-carrying body (48) provided in the developer-accumulating chamber of the developer container, and the developer-carrying body is exposed to face an electrostatic latent image carrying body, and brings the developer from the developer-accumulating chamber to a facing zone therebetween for development of an electrostatic latent image formed on the electrostatic latent image carrying body. The device further comprises a developer-lifting means (68, 68', 70) for lifting the developer, brought to the facing zone by the developer-carrying body, to the developer-agitating chamber of the developer container, and a developer-agitating means (58) for agitating the developer in the developer-agitating chamber of the developer container, a part of the developer agitated by the developer-agitating means being fed to the developer-accumulating chamber through the overflow opening and the communication passage.

Developing device for electrostatic latent image

A toner developing quantity detection unit operates a plurality of electrostatic recording units to transfer Y, M, C and K color component toner marks onto a belt. A toner developing quantity correction unit detects toner developing quantities per unit area of color toners on the basis of detection signals of the color component toner marks on the belt optically detected by a sensor. The toner developing quantity correction unit corrects the toner developing quantities so as to allow the toner consuming quantities of the plurality of electrostatic recording units to be substantially the same level, on the basis of the thus detected toner developing quantities.

Printing apparatus

Multicolor electrostatic recording apparatus and electrostatic latent

Growing community of inventors

Kato-gun, Japan

Tsutomu Kawai