Ink jet printer employing time of flight control system for ink jet printers
US5517216A · kind A · utility
4Cited by
16References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1992 |
| Grant date | May 14, 1996 |
| Priority date | — |
| Expiry date | Jul 28, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Flight time of a stream of ink drops is measured and compared against a set point to determine variations therefrom. Variations due to changes in the ink composition are compensated for by adding or withholding solvent in proportion to the detected change. Changes due to variations in nozzle drive voltage result in the computation and use of a new flight time set point value, if necessary to avoid erroneous corrective action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.