Liquid consumption apparatus and liquid consumption amount control method
US7850263B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2007 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Apr 26, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/17583
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention provides a liquid consumption apparatus including a liquid consumption unit, a counting unit that counts the amount of the liquid consumed by the liquid consumption unit as a liquid consumption amount, a reception unit that receives a detection signal indicating that the amount of the liquid contained in the liquid container is not more than a predetermined amount; a detection-time liquid amount memory unit that memorizes the liquid consumption amount at the time of reception of the detection signal as a detection-time liquid consumption amount, and a judgment unit that judges that the liquid container is empty when the amount of difference between the liquid consumption amount and the detection-time liquid consumption amount is not more than a specified amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.