发明公开
EP2605074A3 Developing device, image forming apparatus and method of controlling developing device
有权
基本信息:
- 专利标题： Developing device, image forming apparatus and method of controlling developing device
- 专利标题（中）：一种显影装置，图像形成用于控制显影装置的设备和方法
- 申请号：EP12196689.9 申请日：2012-12-12
- 公开(公告)号：EP2605074A3 公开(公告)日：2014-07-09
- 发明人： Fujihara, Kensuke , Watanabe, Akihiro , Fuchimoto, Nobuyuki
- 申请人： Kyocera Document Solutions Inc.
- 申请人地址： 2-28, Tamatsukuri, 1-chome Chuo-ku Osaka-shi Osaka 540-8585 JP
- 专利权人： Kyocera Document Solutions Inc.
- 当前专利权人： Kyocera Document Solutions Inc.
- 当前专利权人地址： 2-28, Tamatsukuri, 1-chome Chuo-ku Osaka-shi Osaka 540-8585 JP
- 代理机构： Beetz & Partner
- 优先权： JP2011275917 20111216; JP2012262805 20121130
- 主分类号： G03G15/06
- IPC分类号： G03G15/06
摘要：
A developing device includes a development roller (11), a magnetic roller (12), a transformer (83), a switching portion (81), output control portion (80) and a capacitor (82). The development roller (11) is opposite a photoconductor drum (42). The magnetic roller (12) performs, with a magnetic brush, the supply of a toner to the development roller (11) and the removal of the toner. The transformer (83) generates an alternating-current voltage applied to the development roller (11). The switching portion (81) passes and interrupts a current to the transformer (83). The output control portion (80) stepwise changes, when a duty ratio in switching is changed, the duty ratio a plurality of times from a first duty ratio to a second duty ratio. The capacitor (82) has one end connected to the transformer (83) and the other end connected to the switching portion (81).
公开/授权文献:
IPC结构图谱:
| G | 物理 |
| --G03 | 摄影术；电影术；利用了光波以外其他波的类似技术；电记录术；全息摄影术 |
| ----G03G | 电记录术；电照相；磁记录 |
| ------G03G15/00 | 应用电荷图形的电记录工艺的设备 |
| --------G03G15/06 | .显影用的 |