Image recording apparatus and head driving control apparatus
US7249816B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2002 |
| Grant date | Jul 31, 2007 |
| Priority date | — |
| Expiry date | Jul 8, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14411
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A head driving control apparatus for driving a pressure generation part in a droplet discharging head outputs a driving signal including: a first waveform element for contracting the volume of a pressurizing chamber without discharging a droplet; a second waveform element for keeping a contracted state until a meniscus in a nozzle moves toward the pressurizing chamber; a third waveform element for expanding the volume of the pressurizing chamber from the contracted state; a fourth waveform element for keeping an expanded state; and a fifth waveform element for contracting the volume of the pressurizing chamber to discharge a droplet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.