Brother Kogyo Kabushiki-kaisha

Takami Takeuchi

Hirotaka Mori

Makoto Ishii

Kazumasa Makino

Yoshinori Endo

A lever is provided in a photosensitive member frame of a photosensitive member cartridge that accommodates a developing cartridge in a cartridge accommodating portion. The lever is engaged with an engaging shaft of the developing cartridge, and is movable between a contact position and a separation position. When the lever is in the contact position, a developing roller and a photosensitive drum make contact with each other, and when the lever is in the separation position, the developing roller and the photosensitive drum are separated.

Developing cartridge, photosensitive member cartridge, process unit, and image forming apparatus

An image forming method and apparatus, wherein the charging amount that a charging device charges a photosensitive drum is controlled so as to reduce the charging amount in a period, except for the image forming period, than that during the image forming period. While the charging amount is reduced, the voltage applied to the charging device is controlled by chopping. Accordingly, mote adhesion onto the charging device and improper chopping can be effectively prevented or reduced. When print data is input from an outside source, the quantity of airflow generated by the fan is allowed to increase, and the printing operation starts after the quantity of airflow is increased. As sufficient airflow is generated inside the laser printer before the charging device starts to charge, motes and other objects existing in the laser printer can be ejected outside effectively. As a result, mote adhesion onto the charging device and improper charging can be prevented or reduced.

Image forming method and apparatus with means for reducing the accumulation of particle on a charging device

By selecting a desired code table on an operation panel and depressing a print key, a series of code numbers each of which is divided into a first-digit code and a second-digit code and characters and symbols of the selected code table are printed after being edited so as to be in association with each other.

Growing community of inventors

Nagoya, Japan

Takami Takeuchi