Invention Grant
- Patent Title: Pen maintenance system and method for operating same
- Patent Title (中): 笔维修系统及操作方法
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Application No.: US10237274Application Date: 2002-09-04
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Publication No.: US06722752B2Publication Date: 2004-04-20
- Inventor: Jeremy A. Davis , David J. Waller , Kit L. Harper
- Applicant: Jeremy A. Davis , David J. Waller , Kit L. Harper
- Main IPC: B41J29393
- IPC: B41J29393
Abstract:
A pen having a printhead and a chamber for holding ink; a sensor for monitoring changes in the amount of ink in the chamber; and a pump for seletively drawing ink into or expelling ink from the chamber.
Public/Granted literature
- US20040041871A1 Pen maintenance system and method for operating same Public/Granted day:2004-03-04
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