Ink jet recording apparatus and method
US6257691A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1998 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Feb 18, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/04598
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Small dots and large dots are recorded with a sufficient difference between them by such structure that a plurality of heat generating elements are disposed inside of each nozzle. A single pulse is applied to one heat generating element for recording of a small dot, whereas a single pulse and a divided pulse are applied to two heat generating elements for recording of a large dot. When the divided pulse is applied to the heat generating element, a larger amount of the ink is ejected than upon application of the single pulse. Therefore, the sufficient difference can be generated between the sizes of dots by applying the driving pulses as described above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.