Ink jet printing apparatus and ink jet printing method
US6488350B2 · kind B2 · utility
6Cited by
18References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1999 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Oct 21, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/04598
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention reduces a difference in speed between a main drop section and a tailing section of a ejected ink droplet by heating a front heater and a rear heater provided for one nozzle with a predetermined time lag and thus, the ink dot formed from the main drop section and the tailing section on a printing medium can be more approximate to a circle. Thereby, it is possible to prevent print quality from being degraded by the tailing section separated from the main drop section of the ink droplet ejected from an ink jet printing apparatus of serial type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.