| 发明名称 | Apparatus, printers, and charge roller assemblies | ||
| 摘要 | Apparatus, printers, and charge roller assemblies are disclosed. An example apparatus includes a roller to charge a printer surface when closer to the printer surface than an upper threshold, and a damper to reduce movement of the roller and to keep the roller closer to the printer surface than the upper threshold. | ||
| 申请公布号 | US9020401(B2) | 申请公布日期 | 2015.04.28 |
| 申请号 | US201114116598 | 申请日期 | 2011.06.07 |
| 申请人 | Hewlett-Packard Development Company, L.P. | 发明人 | Chang Seongsik;Lee Michael H.;Gila Omer |
| 分类号 | G03G15/02 | 主分类号 | G03G15/02 |
| 代理机构 | Hanley, Flight & Zimmerman | 代理人 | Hanley, Flight & Zimmerman |
| 主权项 | 1. An apparatus, comprising: a first roller to charge a printer surface when the first roller is less than a first upper threshold distance away from the printer surface; a second roller to charge the first roller when the second roller is less than a second upper threshold distance away from the first roller; and a damper to reduce movement of the first and second rollers to keep the second roller within the second upper threshold of the first roller and to keep the first roller within the first upper threshold of the printer surface. | ||
| 地址 | Houston TX US | ||