Ink jet recording apparatus
US6736479B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2002 |
| Grant date | May 18, 2004 |
| Priority date | — |
| Expiry date | Nov 3, 2022 |
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: a head body provided with a nozzle and a pressure chamber; an actuator including a piezoelectric element and an electrode for applying a voltage across the piezoelectric element; and a driving circuit for supplying a driving signal to the electrode of the actuator. The driving circuit always supplies an auxiliary pulse signal in every printing cycle. When ink is to be discharged, the driving circuit supplies, after the auxiliary pulse signal is supplied, an ink discharge pulse signal for driving the actuator so that the ink is discharged and so that an ink meniscus vibration in the nozzle is resonant with that caused by the auxiliary pulse signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.