Ink jet recording method and apparatus for controlling recording signal parameters
US6457794B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 1993 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | May 17, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14379
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet recording apparatus is disclosed in which a bubble is created in ink by thermal energy generated in response to a drive signal applied to a heater, and the ink is ejected onto a recording material by expansion of the bubble. The recording apparatus includes a driving device and a changing device. The driving device applies a plurality of driving signals to the heater for each ink droplet ejection. The driving signals include a first driving signal for increasing a temperature of the ink adjacent the heater without creating the bubble, and a second driving signal after the first drive signal for ejecting the ink. An interval is provided between the first and second drive signals. The changing device changes a width of the first drive signal to adjust an amount of ejected ink. The interval is not shorter than 2.6 microseconds and the second drive signal has a constant width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.