Ink drop control system with temperature compensation
US4860027A · kind A · utility
19Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1988 |
| Grant date | Aug 22, 1989 |
| Priority date | — |
| Expiry date | Mar 18, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/195
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus are disclosed which provide feedback control of ink viscosity in a drop marking system. The ink flow between two selected points is monitored and compared against a reference value by an electronic controller such as a microprocessor. In the event that a flow time deviation is sensed, appropriate action is taken to change the flow time. A temperature sensor input to the controller permits temperature compensation to maintain ink composition substantially constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.