发明名称 |
Optical ink level detecting arrangements for ink cartridges |
摘要 |
An ink container shell for an ink jet cartridge has an ink chamber provided with an optical ink detection device in the form of a single or multi-segment prism having interface surfaces for reflecting light in a scan plane from a first to a second exterior area relative to the container shell when an ink level in the chamber recedes to a given level. The multi-segment prism provides for scanning a cartridge in different scanning planes. Either a single prism or the multi-segment prism can be separate from the cartridge and interengaged therewith by a snap-fit.
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申请公布号 |
US7137688(B1) |
申请公布日期 |
2006.11.21 |
申请号 |
US20040826330 |
申请日期 |
2004.04.19 |
申请人 |
NU-KOTE INTERNATIONAL, INC. |
发明人 |
ANDERSEN STEPHEN A.;LENGYEL DENNIS M. |
分类号 |
B41J2/045 |
主分类号 |
B41J2/045 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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