| 发明名称 | Ink cartridge and method of replenishing ink cartridge | ||
| 摘要 | An ink cartridge including a holding member and an ink bag to accommodate ink, wherein the ink cartridge is replenished with pigment ink having a pH higher than a pH of residual ink remaining in the ink cartridge. | ||
| 申请公布号 | US8979255(B2) | 申请公布日期 | 2015.03.17 |
| 申请号 | US201313765776 | 申请日期 | 2013.02.13 |
| 申请人 | Ricoh Company, Ltd. | 发明人 | Bannai Akiko;Inoue Tomohiro |
| 分类号 | B41J2/17;B41J2/175;C09D11/322 | 主分类号 | B41J2/17 |
| 代理机构 | Oblon, McClelland, Maier & Neustadt, L.L.P. | 代理人 | Oblon, McClelland, Maier & Neustadt, L.L.P. |
| 主权项 | 1. An ink cartridge comprising: a holding member; and an ink bag to accommodate ink; wherein the ink bag is connected to the holding member; wherein the ink cartridge is replenished with pigment ink having a pH higher than a pH of residual ink remaining in the ink cartridge; and wherein the residual ink remaining in the ink cartridge is pigment ink. | ||
| 地址 | Tokyo JP | ||