Ink jet recording apparatus
US6969138B2 · kind B2 · utility
1Cited by
4References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2003 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | Oct 27, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/1425
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet recording apparatus includes an ink jet head, a reference pulse generation circuit, and switch circuits. The reference pulse generation circuit is a circuit for generating, at a predetermined cycle, a first reference pulse P4a based on which a driving pulse is produced. A preliminary pulse P1 is for vibrating an ink meniscus in the tip portion of a nozzle. A discharge pulse P2 is for discharging an ink droplet through the nozzle. The switch circuits selectively input, to piezoelectric actuators, the preliminary pulse P1 and the discharge pulse P2 generated by the reference pulse generation circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.