JPS645853A - Ink-jet recording apparatus - Google Patents
Ink-jet recording apparatusInfo
- Publication number
- JPS645853A JPS645853A JP16151387A JP16151387A JPS645853A JP S645853 A JPS645853 A JP S645853A JP 16151387 A JP16151387 A JP 16151387A JP 16151387 A JP16151387 A JP 16151387A JP S645853 A JPS645853 A JP S645853A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- chamber
- passage
- pressure chamber
- notch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/055—Devices for absorbing or preventing back-pressure
Landscapes
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
PURPOSE:To prevent the flow of ink from running in a reverse direction to an ink chamber, by providing a check valve in a passage communicating a pressure chamber with the ink chamber of a printer head. CONSTITUTION:When a pulse signal at a predetermined voltage is applied to a piezoelectric ceramic 33, the capacity of a pressure chamber 25 is reduced thereby to cause a predetermined amount of ink 34 to be jetted from a nozzle 24. At a next moment, a pressure plate 15 is returned to an original shape, and further expanded outwards. At the same time, a valve body 30 constituting a check valve or non-return valve is opened, so that the pressure chamber 25 is communicated to an ink chamber via a passage 31 and a notch 32. Consequently, the ink is injected into the pressure chamber 25, without the air being sucked in from the nozzle 24. When the pressure plate 15 is returned back to the original shape again, the valve body 30 closes the passage 31 simultaneously. As a result, the ink is prevented from running in a reverse direction to the ink chamber through the passage 31 and the notch 32. Accordingly, the propulsion because of the deformation of the piezoelectric ceramic can be fully utilized as an energy for ejecting the ink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16151387A JPS645853A (en) | 1987-06-29 | 1987-06-29 | Ink-jet recording apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16151387A JPS645853A (en) | 1987-06-29 | 1987-06-29 | Ink-jet recording apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS645853A true JPS645853A (en) | 1989-01-10 |
Family
ID=15736492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16151387A Pending JPS645853A (en) | 1987-06-29 | 1987-06-29 | Ink-jet recording apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS645853A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7182432B2 (en) | 2003-04-08 | 2007-02-27 | Oce-Technologies B.V. | Inkjet printhead |
| GB2516845A (en) * | 2013-07-31 | 2015-02-11 | Ingegneria Ceramica S R L | An Improved Actuator and Method of Driving Thereof |
-
1987
- 1987-06-29 JP JP16151387A patent/JPS645853A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7182432B2 (en) | 2003-04-08 | 2007-02-27 | Oce-Technologies B.V. | Inkjet printhead |
| GB2516845A (en) * | 2013-07-31 | 2015-02-11 | Ingegneria Ceramica S R L | An Improved Actuator and Method of Driving Thereof |
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