Liquid injection apparatus with residual ink quantity detecting means
US5136309A · kind A · utility
65Cited by
18References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1990 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Dec 5, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/17586
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A residual ink quantity detecting apparatus for detecting a residual quantity of ink in a supply source of ink for supplying ink to an ink-jet printer comprises a deviation member, which is connected to an ink supply path extending from the supply source, constitutes part of the path and can be deviated upon change in pressure in the path, an adjusting member for adjusting a deviation of the deviation member in order to set a pressure at which the deviation member is deviated and a detection unit for detecting the deviation of said deviation member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.