Ink droplet ejecting method and apparatus
US6257686A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1998 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Nov 30, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/10
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In an ink droplet ejecting method and apparatus, when a continuous dot printing is performed and also when a continuous dot printing is followed by a one-dot rest and again subsequent printing, it is intended to suppress the meniscus oscillation of ink, prevent the decrease in ink droplet ejecting speed of some dots and prevent the ink droplet ejecting direction from becoming unstable. A plurality of driving waveforms are provided in advance, and in accordance with whether there is ink ejection just before and just after one dot, an appropriate driving waveform for the dot is selected, whereby it becomes possible to suppress the meniscus oscillation of ink and a stable ink droplet ejection is ensured in a continuous dot printing and also when a continuous dot printing is followed by a one-dot rest and against subsequent printing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.