CA2697385A1 - Inkjet printer with selectively isolatable pump - Google Patents
Inkjet printer with selectively isolatable pump Download PDFInfo
- Publication number
- CA2697385A1 CA2697385A1 CA2697385A CA2697385A CA2697385A1 CA 2697385 A1 CA2697385 A1 CA 2697385A1 CA 2697385 A CA2697385 A CA 2697385A CA 2697385 A CA2697385 A CA 2697385A CA 2697385 A1 CA2697385 A1 CA 2697385A1
- Authority
- CA
- Canada
- Prior art keywords
- printhead
- reservoir
- pump
- inkjet printer
- fluid communication
- 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.)
- Granted
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
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17596—Ink pumps, ink valves
Abstract
An inkjet printer that has a printhead for printing onto a media substrate, a reservoir for supplying ink to the print-head, a pump for drawing ink from the reservoir and pumping ink into the printhead and, a valve arrangement for selectively opening fluid communication between the pump and the printhead, and closing fluid communication between the pump and the printhead while opening fluid communication between the reservoir and the printhead.
Claims (11)
1. An inkjet printer comprising:
a printhead for printing onto a media substrate;
a reservoir for supplying ink to the printhead;
a pump for drawing ink from the reservoir and pumping ink into the printhead;
and, a valve arrangement for selectively opening fluid communication between the pump and the printhead, and closing fluid communication between the pump and the printhead while opening fluid communication between the reservoir and the printhead.
a printhead for printing onto a media substrate;
a reservoir for supplying ink to the printhead;
a pump for drawing ink from the reservoir and pumping ink into the printhead;
and, a valve arrangement for selectively opening fluid communication between the pump and the printhead, and closing fluid communication between the pump and the printhead while opening fluid communication between the reservoir and the printhead.
2. An inkjet printer according to claim 1 further comprising a filter for ink flowing from the pump to the printhead, the filter being positioned such that it is not in fluid communication with the printhead when the valve arrangement is configured for fluid communication between the reservoir and the printhead.
3. An inkjet printer according to claim 1 wherein the valve arrangement is configured such that the pump is not in fluid communication with the reservoir whenever the pump is in fluid communication with the printhead.
4. An inkjet printer according to claim 3 wherein the valve arrangement is configured such that the pump is not in fluid communication with the reservoir whenever the reservoir is in fluid communication with the printhead.
5. An inkjet printer according to claim 4 further comprising an upstream line for establishing fluid communication between the reservoir and the printhead wherein the valve arrangement is a three-way valve in the upstream line and the pump connects to the three-way valve via a branch line, the three way valve having three settings;
a first setting connecting the upstream line to the reservoir to the upstream line to the printhead while closing the branch line, a second setting connecting the branch line to the upstream line to the reservoir while closing the upstream line to the printhead, and a third setting connecting the branch line to the upstream line to the printhead while closing the upstream line to the reservoir.
a first setting connecting the upstream line to the reservoir to the upstream line to the printhead while closing the branch line, a second setting connecting the branch line to the upstream line to the reservoir while closing the upstream line to the printhead, and a third setting connecting the branch line to the upstream line to the printhead while closing the upstream line to the reservoir.
6. An inkjet printer according to claim 1 wherein the pump has a chamber with a reciprocating plunger.
7. An inkjet printer according to claim 1 wherein the pump is a bulb of elastomeric material for holding a volume of ink and an actuator for selectively compressing the bulb.
8. An inkjet printer according to claim 1 wherein the reservoir has a pressure regulator for establishing a predetermined pressure in a headspace above the ink in the reservoir, the predetermined pressure being less than atmospheric pressure.
9. An inkjet printer according to claim 8 wherein the pump draws ink from the reservoir to reduce the pressure in the headspace to the predetermined pressure in preparation for printing.
10. An inkjet printer according to claim 9 wherein the ink drawn from the reservoir by the pump in preparation for printing is pumped into the printhead in preparation for printing.
11. An inkjet printer according to claim 1 wherein the printhead has a distribution manifold and a plurality of printhead integrated circuits mounted to the distribution manifold such that priming the distribution manifold with ink also primes the printhead integrated circuits.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/AU2007/001564 WO2009049349A1 (en) | 2007-10-16 | 2007-10-16 | Inkjet printer with selectively isolatable pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2697385A1 true CA2697385A1 (en) | 2009-04-23 |
| CA2697385C CA2697385C (en) | 2011-12-20 |
Family
ID=40566908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2697385A Active CA2697385C (en) | 2007-10-16 | 2007-10-16 | Inkjet printer with selectively isolatable pump |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2209644B1 (en) |
| CA (1) | CA2697385C (en) |
| TW (1) | TWI419796B (en) |
| WO (1) | WO2009049349A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI540056B (en) * | 2012-05-11 | 2016-07-01 | 凱特伊夫公司 | Printhead unit assembly for use with an inkjet printing system |
| WO2017074424A1 (en) | 2015-10-30 | 2017-05-04 | Hewlett-Packard Development Company, L.P. | Printer and method for delivering ink in the printer |
| EP3493991B1 (en) | 2017-01-19 | 2021-06-16 | Hewlett-Packard Development Company, L.P. | Fluid pump actuation on a fluid ejection device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4399446A (en) * | 1982-01-18 | 1983-08-16 | The Mead Corporation | Ink supply system for an ink jet printer |
| JP3492441B2 (en) * | 1994-03-15 | 2004-02-03 | ゼロックス・コーポレーション | Thermal inkjet printbar valve connector and ink handling system |
| CN100471678C (en) * | 2004-02-03 | 2009-03-25 | 精工爱普生株式会社 | Pressure control valve unit and liquid jetting device |
| JP4682862B2 (en) * | 2005-03-31 | 2011-05-11 | セイコーエプソン株式会社 | Liquid container and liquid filling method thereof |
| JP4185131B2 (en) * | 2006-11-13 | 2008-11-26 | ゼネラル株式会社 | Ink supply device |
-
2007
- 2007-10-16 CA CA2697385A patent/CA2697385C/en active Active
- 2007-10-16 EP EP07815369A patent/EP2209644B1/en active Active
- 2007-10-16 WO PCT/AU2007/001564 patent/WO2009049349A1/en active Application Filing
-
2008
- 2008-02-21 TW TW097106076A patent/TWI419796B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| EP2209644A4 (en) | 2010-10-06 |
| TW200927499A (en) | 2009-07-01 |
| TWI419796B (en) | 2013-12-21 |
| WO2009049349A1 (en) | 2009-04-23 |
| CA2697385C (en) | 2011-12-20 |
| EP2209644A1 (en) | 2010-07-28 |
| EP2209644B1 (en) | 2012-12-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |