| 发明名称 | Image forming apparatus with lubricated developer carrying member | ||
| 摘要 | An image forming apparatus configured to form an image with developer includes an image bearing member configured to bear an image of the developer, a developer carrying member configured to carry the developer to supply the developer to the image bearing member, and a developer supplying member configured to supply the developer to the developer carrying member. At least a part of a surface of the developer carrying member is coated with lubricant charged to the same polarity as the developer, and an absolute value of a charge amount per unit mass of the lubricant is larger than that of the developer. The image forming apparatus executes a first sequence of applying a potential difference between the developer supplying member and the developer carrying member before image formation to form an electric field to suppress movement of the charged lubricant from the developer carrying member to the developer supply member. | ||
| 申请公布号 | US9372434(B2) | 申请公布日期 | 2016.06.21 |
| 申请号 | US201514636357 | 申请日期 | 2015.03.03 |
| 申请人 | CANON KABUSHIKI KAISHA | 发明人 | Hayashi Kodai;Mitsui Yoshihiro;Taniguchi Hisashi;Kawasaki Shuhei;Matsushita Shunsuke |
| 分类号 | G03G15/08;G03G15/06 | 主分类号 | G03G15/08 |
| 代理机构 | Fitzpatrick, Cella, Harper & Scinto | 代理人 | Fitzpatrick, Cella, Harper & Scinto |
| 主权项 | 1. An image forming apparatus, which is configured to form an image with use of developer, the image forming apparatus comprising: an image bearing member configured to bear an image of the developer; a developer carrying member configured to carry the developer so as to supply the developer to the image bearing member; and a developer supplying member configured to supply the developer to the developer carrying member, wherein at least a part of a surface of the developer carrying member is coated with lubricant, wherein the lubricant is to be charged to the same polarity as the developer, wherein an absolute value of a charge amount per unit mass of the lubricant is larger than an absolute value of a charge amount per unit mass of the developer, and wherein the image forming apparatus is configured to execute a first sequence of applying a potential difference between the developer supplying member and the developer carrying member before image formation to form an electric field to suppress movement of the charged lubricant from the developer carrying member to the developer supply member. | ||
| 地址 | Tokyo JP | ||