US3701998A - Twin row drop generator - Google Patents
Twin row drop generator Download PDFInfo
- Publication number
- US3701998A US3701998A US189298A US3701998DA US3701998A US 3701998 A US3701998 A US 3701998A US 189298 A US189298 A US 189298A US 3701998D A US3701998D A US 3701998DA US 3701998 A US3701998 A US 3701998A
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- US
- United States
- Prior art keywords
- drop
- drops
- rows
- curtains
- orifices
- 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.)
- Expired - Lifetime
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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
- B41J2/02—Ink jet characterised by the jet generation process generating a continuous ink jet
- B41J2/025—Ink jet characterised by the jet generation process generating a continuous ink jet by vibration
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- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- Facsimile Heads (AREA)
Abstract
A drop generator in which two rows of orifices are formed in an orifice plate to cause two rows of drops to be generated from a single drop generating head. The drops pass through two corresponding rows of charge rings and then pass on opposite sides of an electrically conductive strip which, in cooperation with other elements of the generator, provides an electrostatic deflecting field to deflect charged drops into drop catchers. Electrically conductive plates can be utilized in conjunction with the conductive strip to set up the deflecting field or the drop catchers can be used for this purpose.
Description
United States Patent Mathis [4 1 Oct. 31, 1972 [54] TWIN ROW DROP GENERATOR 7 3,577,198 5/1971 Beam ..346/75 [72] Inventor: gag l chflhgothe Primary ExaminerJoseph W. Hartary I p Attorney-Lawrence B. Biebel et-al. [73] Assignee: The Mead Corporation, Dayton,
- Ohio [57] ABSTRACT v I [22] Filed: Oct. 14, 1971 A drop generator in which two rows of orifices are formed in an orifice plate to cause two rows of drops [2!] Appl' 189398 to be generated from a single drop generating head. The drops pass through two corresponding rows of [52] U.S. Cl. ..346/75, 239/15, 317/3 s rings and then P on p t sides of [51 Int. Cl. ..G01d 1s/1s' electrically conductive strip which, in cc s a [58] Field of Search "346/75, 140. 317/3; 239/3, with other elements of the generator, provides an elec- 239/15 trostatic deflecting field to deflect charged drops into i drop catchers. Electrically conductive plates can be utilized in conjunction with the conductive 'strip to set [5 6] References Cited up the deflecting field or the drop catchers can be UNITED STATES PATENTS I used for this purpose.
3,404,221 10/1968 Loughren.....'.......-....346/75 X I I v 1 3 Claims, 4 Drawing Figures PAIENTEDncm I 12 3.701.998
SHEET 1 OF 2' INVENTOR GARLAND V. MATH I S A TTORNE Y8 1 'rwm Row DROP GENERATOR CROSS-REFERENCE TO RELATED APPLICATIONS BACKGROUND OF THE'INVENTION This invention relatesgenerally to the field of fluid drop generation and the application thereof to jet drop recorders ofthe type shown in Sweet et al .U.S. Pat. No. 3,373,437 and Taylor et al U.S. Pat. No. 3,560,641. In recorders of this type there are one or more rows oforifices which receive an electrically conductive, recording fluid, such as for instance a water base ink, from a pressurized fluid supply manifold and eject the fluid in rows of parallel streams. These recorders accomplish graphic reproduction by selectively charging and deflecting the drops in each of the streams and thereafter depositing at least some of the drops on a moving web of paper or other material.
The above mentioned charging is accomplished by application of control signals to charging electrodes positioned near-each of the streams. As each drop breaks off from its parent fluid filament, it carries with it a charge which is in effect a sample of the voltage present on the associated charge electrodeat the instant of drop separation. Thereafter the drop passes through an electrostatic field and is deflected in the field direction a distance which is proportional to the magnitude of the drop charge. In a preferred embodiment the drops are charged binarily for print-no-print operation; some drops being uncharged and undeflected for printing, and all other drops being charged to a fixed level and deflected into a catcher.
Additional patents of interest in this field are U.S. Pat.. Nos. 2,573,143 to Jacob and 3,404,221 to Loughren. In the Jacob patent outward deflecting and I catching ofdrops is shown while in the patent to Loughren alternate polarity deflection field plates are utilized-Generally, however, when a plurality of rows of drops are to be projected a corresponding number of drop generating heads are provided.
SUMMARY OF THE INVENTION above noted related applications, although control can also be obtained in other ways as, for example, in the manner described in the above noted patent to Taylor.
trical charge to thestrip and additional members positioned outwardly of the curtains of drops, electrostatic BRIEF DESCRIPTION OF THE DRAWINGS i FIG. 1 is an exploded perspective view of a recording head assembly; FIG. l-A. is a perspective view of a portion of the assembly of FIG. 1; n
FIG. 2 is a cross-section view through the assembly of FIG. 1;
FIG. 3 is a somewhat schematic representation of one embodiment of an electrical circuit; and g FIG. 4 is a second embodiment of an electriccircuit.'
DESCRIPTION OF THE PREFERRED EMBODIMENTS I With reference to FIG. 1 of the drawings it will be seen that the various elements of a head assembly 10 are assembled for support by a support bar 12, Assembly thereto isaccomplished by attaching the elements by means of machine screws (not shown) to a clamp bar 14 which is in turn connected to the support. bar 12 by means of clamp rods 16. I
The recording head comprises an orifice plate 18 soldered, welded or otherwise bonded to fluid supply manifold 20 with a pair of wedge-shaped acoustical dampers 22 therebetween. Orifice plate 18 is preferably formed of a relatively stiff material such as stainless steel or nickel coated beryllium-cooper but is relatively thin to provide the required flexibility for direct contact stimulation. Preferably dampers 22 are cast in place by pouring polyurethane rubber or other An electrically conductive strip is positioned downstream of the charge rings in a position such that the drops falling from each row of orifices which, in effect, form two curtains of drops, fall on opposite sides of the electrically conductive strip. By applying an elecsuitable damping material through openings 24 while tilting manifold 20 (orifice plate 18 being attached),at an appropriate angle from the vertical. This is a two step operation as dampers 22 require tilting in opposite directions (See FIG. l-A).
Orifice plate 18 contains two rows of orifices 26 and is preferably stimulated by a stimulator 28 which is threaded into clamp bar 14 to carry a stimulation probe 30 through the manifold 20 and into direct contact with plate 18. Orifice plate 18, manifold 20, clamp bar 14 together with a filter plate 32 and 0 rings 34, 36 and 38 (see also FIG. 2) comprise a clean package which may be preassembled and kept closed to prevent dirt or foreign material from reaching and clogging orifices 26. Conduit 40 may be provided for flushing of the clean package. Service connections for the recording head include a coating fluid supply tube 42, air exhaust and inlet tubes 44 and 46, and a tube 48 for connection to a pressure transducer (not shown).
. Other major elements comprising the recording head are a charge ring plate 50, an electrically conductive deflection ribbon 52 and a pair of catchers 54. Catchers 54 are supported by holders 56 which are fastened directly to fluid supply manifold 20. Spacers 58 and 60 reach through apertures 62 and 64, respectively in charge ring plate 50 to support holders 56 without stressing or constraining charge ring plate 50. Deflection ribbon 52 is also supported by holders 56 and is' stretched tightly therebetween by means of tightening block 66. Ribbon 52 extends between catchers 54 as best shown in FIG. 2.
Formation of drops 84 is closely controlled by application of a constant frequency, controlled amplitude, stimulatingdisturbance to each of the fluid streams emanating from orifice plate 18. Disturbances for this purpose may be set up by operating transducer 28 to 'vitrate probe 30 at constant amplitude and frequency against plate 18. This cuases a continuing series of bending waves to travel the length of plate 18; each wave producing a drop stimulating disturbance each time it passes one of the orifices 26. Dampers 22 prevent reflection and repropagation of these waves. Accordingly each stream comprises an unbroken fluid filament and a series of uniformly sized and regularly spaced drops all in accordance with the well known Rayleigh jet break-up phenomenon.
As each drop 84 is formed it is exposed to the charging influence of one of the charge rings 86. If the drop is to be deflected and caught, an electrical charge is applied'to the associated charge ring 86 during the instant of drop formation. This causes an electrical charge to be induced in the tip of the fluid filament and carried away by the drop. As the drop traverses the deflecting field set up between ribbon 52 and the face of the adjacent catcher it is deflected to strike and run down the face of the catcher, where it is ingested, and carried off. Dropingestion may be promoted by application of a suitable vacuum to the ends 90 of catchers 54. When drops which are to deposit on the web 88, no electrical charge is applied to the associated charge rings. V
Appropriate charges for accomplishment of the above mentioned drop charging are induced by setting up an electrical potential difference between orifice plate 18 (or any other conductive structure in electrical contact withthe coating fluid supply) and each appropriate charge ring 86. These potential differences are created by grounding plate 18 and applying appropriately timed voltage pulses to wires 92 in connectors 94 (only one connector illustrated). Connectors 94 are plugged into receptacles 96 at the edge of charge ring plate 50 and deliver the mentioned voltage pulses over printed circuit lines 98 to chargerings 86.:
Deflection of those drops 84 which are to be caught is accomplished by setting up appropriate electrical fields between deflection ribbon 52 and each of the catchers 54. The preferred arrangement for this function is shown in FIG. 3 wherein catchers 54 and one side of an electrical potential source 51 are all'connected to a common ground. The other side of source 51 is connected to deflection ribbon 52 thereby setting up a pair of equal strength, oppositely directed electrical deflection fields. As illustrated in FIG. 3 with the ground at the positive side of source 51, it is necessary that drops 84 be charged negatively in order-to be caught. However, it is also possible to obtain mutual outward deflection of the two curtains of drops 84 by charging the drops positively and reversing the terminals on source 51.
An alternative electrical arrangement for mutual outward deflection of the two falling drop curtains is shown in FIG. 4. As shown therein, drops 84a are charged positively, while drops 84b are charged negatively. Accordingly, two potential sources 51a and 51b are connected as illustrated to make catcher 54a negative relative to catcher 54b with deflection ribbon 52 at a potential midway between. This creates a pair of equal strength, common direction electrical flelds which cause drops 84:; to be deflected toward catcher 54a and drops 84b to be deflected toward catcher 54b. In this arrangement catchers 54a and 54b must be electrically isolated from ground and from each other, but deflection gum ribbon 52 may be grounded as shown.
The printing head as above described is adapted to be employed in combination with another such head further in accordance with the teachings of Taylor et al. Such a combination will produce solid printing coverage with the streams in each row on 16 mil centers, which is within the state of theart for current orifice plate and charge ring plate manufacturing techniques. The effective stream spacing for the equivalent single row is 4 mils, and this will produce solid printing coverage if each drop makes a printed dot in the order of about 5 mils. Suitable drops for such printed dots may be produced with 1.5 mil orifices, a fluid pressure of about 11 p.s.i.--and a stimulation frequency of about 60 KHZ. To achieve similar solid coverage in the direction of web travel the speed of web 88 should be set at about 1,200 ft. per sec.
Unexpectedly it has been found that solid printing coverage may be obtained by operating a single printing head as above described but at a reduced web travel speed. In particular, a web speed of about 450 ft. per sec. has been found to be satisfactory. This reduction in web speed results in a decreased longitudinal (i.e. web movement direction) spacing of drop deposit points. In fact when two consecutive drops in one stream are both deposited they tend to pile up and spread in all directions. They behave much like one drop of larger volume, and they fill the laterally adjacent marking cell left empty by omission of the second recording head.
This, of course, degrades the resolution of the resulting print, but a recording head has been saved. For operation in such a mode it is necessary to slow down the rate of the input drop switching data for avoidance of dimensional scaling distortion in the longitudinal direction. Thus a signal which would cause catching of (or permit deposition of) one drop in the faster two head system is stretched to catch on the average about 2.7 drops in the single head system. Catching or deposition of a single drop is not meaningful for the above mentioned single head recorder unless it is desired to make gray scale reproductions as taught for instance in Sweet et al US. Pat. No. 3,373,437.
While the form of apparatus herein described constitutes a preferred embodiment of the invention, it is to be understood that the invention is not limited to this precise form of apparatus, and that changes may be made therein without departing from the scope of the invention.
What is claimed is:
l. A multiple channel jet drop marking head comprising:
a. an orifice plate including means defining two substantially parallel rows of orifices,
b. means for supplying marking fluid to said orifices and producing at their exits parallel rows of fluid filaments,
c. a charging plate spaced from said orifice plate and having means defining parallel rows of apertures in register with said orifices for passage therethrough of said marking fluid filaments,
d. said apertures being electrically insulated from one another and each aperture being provided with-means for individually controlling electrical charging of said filaments,
e. means for stimulating said fluid filaments to break up into spaced curtains of drops corresponding to said rows of orifices, each of said curtains comprising closely spaced trains of uniformly sized and regularly spaced drops corresponding to the orifices in each of said rows thereof, the charge on each drop being determined by the charge condition of the parent fluid filament at the instant of drop separation therefrom, f. electrically conductive strip means positioned downstream of said charging plate intermediate the rows'of apertures therein between said drop curtains,
. means cooperating with said strip means to bound said drop curtains and set up therebetween electrical fields whereby the drops in said curtains are selectively deflected outwardly away from said strip means in accordance with the electrical charges thereon, and
h. means for catching drops deflected outwardly therefrom more than some predetermined distance.
2. The apparatus of claim 1 wherein;
a. said means cooperating with said strip means to set
Claims (3)
1. A multiple channel jet drop marking head comprising: a. an orifice plate including means defining two substantially parallel rows of orifices, b. means for supplying marking fluid to said orifices and producing at their exits parallel rows of fluid filaments, c. a charging plate spaced from said orifice plate and having means defining parallel rows of apertures in register with said orifices for passage therethrough of said marking fluid filaments, d. said apertures being electrically insulated from one another and each aperture being provided with means for individually controlling electrical charging of said filaments, e. means for stimulating said fluid filaments to break up into spaced curtains of drops corresponding to said rows of orifices, each of said curtains comprising closely spaced trains of uniformly sized and regularly spaced drops corresponding to the orifices in each of said rows thereof, the charge on each drop being determined by the charge condition of the parent fluid filament at the instant of drop separation therefrom, f. electrically conductive strip means positioned downstream of said charging plate intermediate the rows of apertures therein between said drop curtains, g. means cooperating with said strip means to bound said drop curtains and set up therebetween electrical fields whereby the drops in said curtains are selectively deflected outwardly away from said strip means in accordance with the electrical charges thereon, and h. means for catching drops deflected outwardly therefrom more than some predetermined distance.
2. The apparatus of claim 1 wherein: a. said means cooperating with said strip means to set up electrical fields comprises opposed faces of said drop catching means.
3. The apparatus of claim 1 wherein said means for bounding said drop curtains and setting up said electrical fields comprises: a. a pair of electrically conductive surfaces connected to a common ground and arranged parallel to said conductive strip on opposite sides thereof, and b. means for establishing said conductive strip at an electrical potential differing from the potential of said ground.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18929871A | 1971-10-14 | 1971-10-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3701998A true US3701998A (en) | 1972-10-31 |
Family
ID=22696731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US189298A Expired - Lifetime US3701998A (en) | 1971-10-14 | 1971-10-14 | Twin row drop generator |
Country Status (6)
Country | Link |
---|---|
US (1) | US3701998A (en) |
JP (1) | JPS5129770B2 (en) |
CA (1) | CA957008A (en) |
FR (1) | FR2162853A5 (en) |
GB (1) | GB1401453A (en) |
HK (1) | HK81179A (en) |
Cited By (64)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3777307A (en) * | 1972-12-20 | 1973-12-04 | Mead Corp | Catcher for a jet drop recorder |
US3787883A (en) * | 1972-12-20 | 1974-01-22 | Mead Corp | Deflection electrode assembly for a jet drop recorder |
US3805273A (en) * | 1972-12-20 | 1974-04-16 | Mead Corp | Yoke mounted jet drop recording head |
US3813675A (en) * | 1973-03-28 | 1974-05-28 | Mead Corp | Catching apparatus for a jet drop recorder |
DE2355336A1 (en) * | 1972-12-20 | 1974-06-27 | Mead Corp | RECORDING DEVICE WORKING WITH LIQUID DROPS |
US3836913A (en) * | 1972-12-20 | 1974-09-17 | Mead Corp | Recording head for a jet array recorder |
US3955203A (en) * | 1975-01-24 | 1976-05-04 | International Business Machines Corporation | High voltage deflection electrode apparatus for ink jet |
DE2554085A1 (en) * | 1974-12-31 | 1976-07-15 | Ibm | SPRAY HEAD FOR AN INKJET PRINTER WITH MULTIPLE NOZZLES |
US3984843A (en) * | 1974-07-01 | 1976-10-05 | International Business Machines Corporation | Recording apparatus having a semiconductor charge electrode |
US4031563A (en) * | 1976-01-29 | 1977-06-21 | The Mead Corporation | Jet drop recording head having an improved porous deflection ribbon |
US4035811A (en) * | 1976-07-12 | 1977-07-12 | The Mead Corporation | Ink jet recorder and catcher therefor |
DE2703320A1 (en) * | 1976-01-29 | 1977-08-04 | Mead Corp | DROP BEAM RECORDER |
DE2731508A1 (en) * | 1976-07-12 | 1978-01-19 | Mead Corp | INKJET PRINT HEAD |
US4081804A (en) * | 1976-07-12 | 1978-03-28 | The Mead Corporation | Catcher mounting apparatus for a jet drop printer |
US4085409A (en) * | 1976-06-01 | 1978-04-18 | The Mead Corporation | Method and apparatus for ink jet printing |
US4119973A (en) * | 1977-09-06 | 1978-10-10 | The Mead Corporation | Fault detection and compensation circuit for ink jet printer |
US4122458A (en) * | 1977-08-19 | 1978-10-24 | The Mead Corporation | Ink jet printer having plural parallel deflection fields |
US4167742A (en) * | 1978-05-01 | 1979-09-11 | The Mead Corporation | Damping means for an ink jet printing device |
US4184925A (en) * | 1977-12-19 | 1980-01-22 | The Mead Corporation | Solid metal orifice plate for a jet drop recorder |
US4198642A (en) * | 1978-01-09 | 1980-04-15 | The Mead Corporation | Ink jet printer having interlaced print scheme |
US4216479A (en) * | 1978-04-03 | 1980-08-05 | The Mead Corporation | Resistively coated deflection ribbon for an ink jet printing device |
US4219822A (en) * | 1978-08-17 | 1980-08-26 | The Mead Corporation | Skewed ink jet printer with overlapping print lines |
EP0015733A1 (en) * | 1979-03-01 | 1980-09-17 | The Mead Corporation | Improvements in or relating to ink jet printers |
US4229265A (en) * | 1979-08-09 | 1980-10-21 | The Mead Corporation | Method for fabricating and the solid metal orifice plate for a jet drop recorder produced thereby |
US4238805A (en) * | 1979-09-12 | 1980-12-09 | The Mead Corporation | Ink jet printer startup and shutdown procedure |
US4242687A (en) * | 1979-07-06 | 1980-12-30 | The Mead Corporation | Heated deflection electrode assembly for a jet drop recorder |
US4245226A (en) * | 1979-07-06 | 1981-01-13 | The Mead Corporation | Ink jet printer with heated deflection electrode |
US4249189A (en) * | 1979-09-04 | 1981-02-03 | The Mead Corporation | Ink jet printer having improved deflection electrode |
US4268836A (en) * | 1979-10-25 | 1981-05-19 | The Mead Corporation | Ink jet printer having improved catcher |
US4293863A (en) * | 1979-09-12 | 1981-10-06 | The Mead Corporation | Ink jet printer with laterally movable print head |
US4307407A (en) * | 1980-06-30 | 1981-12-22 | The Mead Corporation | Ink jet printer with inclined rows of jet drop streams |
US4314258A (en) * | 1980-02-04 | 1982-02-02 | The Mead Corporation | Ink jet printer including external deflection field |
US4318114A (en) * | 1980-09-15 | 1982-03-02 | The Mead Corporation | Ink jet printer having continuous recirculation during shut down |
US4318111A (en) * | 1980-10-03 | 1982-03-02 | Xerox Corporation | Two section charging electrodes for binary ink drop printers |
US4329696A (en) * | 1980-07-23 | 1982-05-11 | The Mead Corporation | Ink jet fluid system |
US4346388A (en) * | 1980-06-13 | 1982-08-24 | The Mead Corporation | Ink jet fluid supply system |
US4347520A (en) * | 1979-09-12 | 1982-08-31 | The Mead Corporation | Ink jet printer |
US4357613A (en) * | 1980-05-15 | 1982-11-02 | The Mead Corporation | Ink jet printer and charge decoupling device therefor |
US4374707A (en) * | 1981-03-19 | 1983-02-22 | Xerox Corporation | Orifice plate for ink jet printing machines |
US4378631A (en) * | 1980-06-23 | 1983-04-05 | The Mead Corporation | Method of fabricating a charge plate for an ink jet printing device |
US4389654A (en) * | 1981-10-01 | 1983-06-21 | Xerox Corporation | Ink jet droplet generator fabrication method |
US4390883A (en) * | 1981-09-08 | 1983-06-28 | The Mead Corporation | Fluid jet print head and method of terminating operation thereof |
DE3300719A1 (en) * | 1982-01-18 | 1983-07-28 | The Mead Corp., 45463 Dayton, Ohio | ARRANGEMENT AND METHOD FOR SUPPLYING INK TO THE PRINT HEAD OF AN INK JET PRINTER |
US4413265A (en) * | 1982-03-08 | 1983-11-01 | The Mead Corporation | Ink jet printer |
EP0104951A2 (en) * | 1982-09-29 | 1984-04-04 | The Mead Corporation | Ink jet printer and method of printer operation |
EP0116786A2 (en) * | 1982-12-27 | 1984-08-29 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Fluid jet print head and stimulator therefor |
US4473830A (en) * | 1983-01-13 | 1984-09-25 | Eastman Kodak Company | Ink jet print head |
US4510503A (en) * | 1982-06-25 | 1985-04-09 | The Mead Corporation | Ink jet printer control circuit and method |
US4533925A (en) * | 1984-06-22 | 1985-08-06 | The Mead Corporation | Ink jet printer with non-uniform rectangular pattern of print positions |
US4544930A (en) * | 1984-05-21 | 1985-10-01 | The Mead Corporation | Ink jet printer with secondary, cyclically varying deflection field |
US4550323A (en) * | 1982-06-30 | 1985-10-29 | Burlington Industries, Inc. | Elongated fluid jet printing apparatus |
US4563688A (en) * | 1983-05-16 | 1986-01-07 | Eastman Kodak Company | Fluid jet printer and method of ultrasonic cleaning |
US4583101A (en) * | 1982-12-27 | 1986-04-15 | Eastman Kodak Company | Fluid jet print head and stimulator therefor |
US4646104A (en) * | 1982-06-21 | 1987-02-24 | Eastman Kodak Company | Fluid jet print head |
US4736209A (en) * | 1985-10-10 | 1988-04-05 | Burlington, Industries, Inc. | Tensionable ground electrode for fluid-jet marking apparatus |
US4831385A (en) * | 1987-10-14 | 1989-05-16 | Burlington Industries, Inc. | Vacuum tray fluid-jet start-up system |
US4839664A (en) * | 1987-07-02 | 1989-06-13 | Burlington Industries, Inc. | Fluid-jet catcher with removable porous metal ingestion blade |
US5724086A (en) * | 1995-05-12 | 1998-03-03 | Eastman Kodak Company | Printhead having data channels with revisable addresses for interleaving scan lines |
US5808655A (en) * | 1995-05-12 | 1998-09-15 | Eastman Kodak Company | Interleaving thermal printing with discontiguous dye-transfer tracks on an individual multiple-source printhead pass |
US5821963A (en) * | 1994-09-16 | 1998-10-13 | Videojet Systems International, Inc. | Continuous ink jet printing system for use with hot-melt inks |
EP1232863A1 (en) * | 2001-02-16 | 2002-08-21 | Eastman Kodak Company | Continuous ink-jet printer having two dimensional nozzle array and method of increasing ink drop density |
US6450628B1 (en) | 2001-06-27 | 2002-09-17 | Eastman Kodak Company | Continuous ink jet printing apparatus with nozzles having different diameters |
US6481835B2 (en) | 2001-01-29 | 2002-11-19 | Eastman Kodak Company | Continuous ink-jet printhead having serrated gutter |
US20060197803A1 (en) * | 2005-03-07 | 2006-09-07 | Steiner Thomas W | Apparatus and method for electrostatically charging fluid drops |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5080042A (en) * | 1973-11-12 | 1975-06-28 | ||
JPS5133434U (en) * | 1975-07-19 | 1976-03-11 | ||
JPS5680659U (en) * | 1979-11-27 | 1981-06-30 |
-
1971
- 1971-10-14 US US189298A patent/US3701998A/en not_active Expired - Lifetime
-
1972
- 1972-09-21 CA CA152,234A patent/CA957008A/en not_active Expired
- 1972-09-25 GB GB4428572A patent/GB1401453A/en not_active Expired
- 1972-10-13 FR FR7236385A patent/FR2162853A5/fr not_active Expired
- 1972-10-13 JP JP47101995A patent/JPS5129770B2/ja not_active Expired
-
1979
- 1979-11-29 HK HK811/79A patent/HK81179A/en unknown
Cited By (74)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3777307A (en) * | 1972-12-20 | 1973-12-04 | Mead Corp | Catcher for a jet drop recorder |
US3787883A (en) * | 1972-12-20 | 1974-01-22 | Mead Corp | Deflection electrode assembly for a jet drop recorder |
US3805273A (en) * | 1972-12-20 | 1974-04-16 | Mead Corp | Yoke mounted jet drop recording head |
DE2355336A1 (en) * | 1972-12-20 | 1974-06-27 | Mead Corp | RECORDING DEVICE WORKING WITH LIQUID DROPS |
US3836913A (en) * | 1972-12-20 | 1974-09-17 | Mead Corp | Recording head for a jet array recorder |
US3813675A (en) * | 1973-03-28 | 1974-05-28 | Mead Corp | Catching apparatus for a jet drop recorder |
US3984843A (en) * | 1974-07-01 | 1976-10-05 | International Business Machines Corporation | Recording apparatus having a semiconductor charge electrode |
DE2554085A1 (en) * | 1974-12-31 | 1976-07-15 | Ibm | SPRAY HEAD FOR AN INKJET PRINTER WITH MULTIPLE NOZZLES |
US3955203A (en) * | 1975-01-24 | 1976-05-04 | International Business Machines Corporation | High voltage deflection electrode apparatus for ink jet |
DE2602004A1 (en) * | 1975-01-24 | 1976-07-29 | Ibm | DEFLECTING ELECTRODES IN INKJET PRINTERS |
US4031563A (en) * | 1976-01-29 | 1977-06-21 | The Mead Corporation | Jet drop recording head having an improved porous deflection ribbon |
DE2703320A1 (en) * | 1976-01-29 | 1977-08-04 | Mead Corp | DROP BEAM RECORDER |
US4085409A (en) * | 1976-06-01 | 1978-04-18 | The Mead Corporation | Method and apparatus for ink jet printing |
US4035811A (en) * | 1976-07-12 | 1977-07-12 | The Mead Corporation | Ink jet recorder and catcher therefor |
DE2731508A1 (en) * | 1976-07-12 | 1978-01-19 | Mead Corp | INKJET PRINT HEAD |
US4081804A (en) * | 1976-07-12 | 1978-03-28 | The Mead Corporation | Catcher mounting apparatus for a jet drop printer |
US4122458A (en) * | 1977-08-19 | 1978-10-24 | The Mead Corporation | Ink jet printer having plural parallel deflection fields |
US4119973A (en) * | 1977-09-06 | 1978-10-10 | The Mead Corporation | Fault detection and compensation circuit for ink jet printer |
DE2835628A1 (en) * | 1977-09-06 | 1979-03-08 | Mead Corp | INKJET PRINTER |
DE2858010C2 (en) * | 1977-09-06 | 1988-07-28 | The Mead Corp., Dayton, Ohio, Us | |
US4184925A (en) * | 1977-12-19 | 1980-01-22 | The Mead Corporation | Solid metal orifice plate for a jet drop recorder |
US4198642A (en) * | 1978-01-09 | 1980-04-15 | The Mead Corporation | Ink jet printer having interlaced print scheme |
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US4167742A (en) * | 1978-05-01 | 1979-09-11 | The Mead Corporation | Damping means for an ink jet printing device |
US4219822A (en) * | 1978-08-17 | 1980-08-26 | The Mead Corporation | Skewed ink jet printer with overlapping print lines |
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US4234884A (en) * | 1979-03-01 | 1980-11-18 | The Mead Corporation | Ink jet printer assembly and alignment of printer components |
US4242687A (en) * | 1979-07-06 | 1980-12-30 | The Mead Corporation | Heated deflection electrode assembly for a jet drop recorder |
US4245226A (en) * | 1979-07-06 | 1981-01-13 | The Mead Corporation | Ink jet printer with heated deflection electrode |
US4229265A (en) * | 1979-08-09 | 1980-10-21 | The Mead Corporation | Method for fabricating and the solid metal orifice plate for a jet drop recorder produced thereby |
US4249189A (en) * | 1979-09-04 | 1981-02-03 | The Mead Corporation | Ink jet printer having improved deflection electrode |
EP0025710A1 (en) * | 1979-09-12 | 1981-03-25 | The Mead Corporation | An ink jet printer and method of operating such a printer |
US4293863A (en) * | 1979-09-12 | 1981-10-06 | The Mead Corporation | Ink jet printer with laterally movable print head |
US4238805A (en) * | 1979-09-12 | 1980-12-09 | The Mead Corporation | Ink jet printer startup and shutdown procedure |
US4347520A (en) * | 1979-09-12 | 1982-08-31 | The Mead Corporation | Ink jet printer |
US4268836A (en) * | 1979-10-25 | 1981-05-19 | The Mead Corporation | Ink jet printer having improved catcher |
US4314258A (en) * | 1980-02-04 | 1982-02-02 | The Mead Corporation | Ink jet printer including external deflection field |
US4357613A (en) * | 1980-05-15 | 1982-11-02 | The Mead Corporation | Ink jet printer and charge decoupling device therefor |
US4346388A (en) * | 1980-06-13 | 1982-08-24 | The Mead Corporation | Ink jet fluid supply system |
US4378631A (en) * | 1980-06-23 | 1983-04-05 | The Mead Corporation | Method of fabricating a charge plate for an ink jet printing device |
US4307407A (en) * | 1980-06-30 | 1981-12-22 | The Mead Corporation | Ink jet printer with inclined rows of jet drop streams |
US4329696A (en) * | 1980-07-23 | 1982-05-11 | The Mead Corporation | Ink jet fluid system |
US4318114A (en) * | 1980-09-15 | 1982-03-02 | The Mead Corporation | Ink jet printer having continuous recirculation during shut down |
US4318111A (en) * | 1980-10-03 | 1982-03-02 | Xerox Corporation | Two section charging electrodes for binary ink drop printers |
US4374707A (en) * | 1981-03-19 | 1983-02-22 | Xerox Corporation | Orifice plate for ink jet printing machines |
US4390883A (en) * | 1981-09-08 | 1983-06-28 | The Mead Corporation | Fluid jet print head and method of terminating operation thereof |
US4389654A (en) * | 1981-10-01 | 1983-06-21 | Xerox Corporation | Ink jet droplet generator fabrication method |
DE3300719A1 (en) * | 1982-01-18 | 1983-07-28 | The Mead Corp., 45463 Dayton, Ohio | ARRANGEMENT AND METHOD FOR SUPPLYING INK TO THE PRINT HEAD OF AN INK JET PRINTER |
US4399446A (en) * | 1982-01-18 | 1983-08-16 | The Mead Corporation | Ink supply system for an ink jet printer |
US4413265A (en) * | 1982-03-08 | 1983-11-01 | The Mead Corporation | Ink jet printer |
US4646104A (en) * | 1982-06-21 | 1987-02-24 | Eastman Kodak Company | Fluid jet print head |
US4510503A (en) * | 1982-06-25 | 1985-04-09 | The Mead Corporation | Ink jet printer control circuit and method |
US4550323A (en) * | 1982-06-30 | 1985-10-29 | Burlington Industries, Inc. | Elongated fluid jet printing apparatus |
EP0104951A2 (en) * | 1982-09-29 | 1984-04-04 | The Mead Corporation | Ink jet printer and method of printer operation |
EP0104951A3 (en) * | 1982-09-29 | 1985-11-06 | The Mead Corporation | Ink jet printer and method of printer operation |
EP0116786A3 (en) * | 1982-12-27 | 1985-12-27 | Eastman Kodak Company | Fluid jet print head and stimulator therefor |
US4583101A (en) * | 1982-12-27 | 1986-04-15 | Eastman Kodak Company | Fluid jet print head and stimulator therefor |
EP0116786A2 (en) * | 1982-12-27 | 1984-08-29 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Fluid jet print head and stimulator therefor |
US4473830A (en) * | 1983-01-13 | 1984-09-25 | Eastman Kodak Company | Ink jet print head |
US4563688A (en) * | 1983-05-16 | 1986-01-07 | Eastman Kodak Company | Fluid jet printer and method of ultrasonic cleaning |
US4544930A (en) * | 1984-05-21 | 1985-10-01 | The Mead Corporation | Ink jet printer with secondary, cyclically varying deflection field |
US4533925A (en) * | 1984-06-22 | 1985-08-06 | The Mead Corporation | Ink jet printer with non-uniform rectangular pattern of print positions |
US4736209A (en) * | 1985-10-10 | 1988-04-05 | Burlington, Industries, Inc. | Tensionable ground electrode for fluid-jet marking apparatus |
US4839664A (en) * | 1987-07-02 | 1989-06-13 | Burlington Industries, Inc. | Fluid-jet catcher with removable porous metal ingestion blade |
US4831385A (en) * | 1987-10-14 | 1989-05-16 | Burlington Industries, Inc. | Vacuum tray fluid-jet start-up system |
US5821963A (en) * | 1994-09-16 | 1998-10-13 | Videojet Systems International, Inc. | Continuous ink jet printing system for use with hot-melt inks |
US5724086A (en) * | 1995-05-12 | 1998-03-03 | Eastman Kodak Company | Printhead having data channels with revisable addresses for interleaving scan lines |
US5808655A (en) * | 1995-05-12 | 1998-09-15 | Eastman Kodak Company | Interleaving thermal printing with discontiguous dye-transfer tracks on an individual multiple-source printhead pass |
US6481835B2 (en) | 2001-01-29 | 2002-11-19 | Eastman Kodak Company | Continuous ink-jet printhead having serrated gutter |
EP1232863A1 (en) * | 2001-02-16 | 2002-08-21 | Eastman Kodak Company | Continuous ink-jet printer having two dimensional nozzle array and method of increasing ink drop density |
US6536883B2 (en) | 2001-02-16 | 2003-03-25 | Eastman Kodak Company | Continuous ink-jet printer having two dimensional nozzle array and method of increasing ink drop density |
US6450628B1 (en) | 2001-06-27 | 2002-09-17 | Eastman Kodak Company | Continuous ink jet printing apparatus with nozzles having different diameters |
US20060197803A1 (en) * | 2005-03-07 | 2006-09-07 | Steiner Thomas W | Apparatus and method for electrostatically charging fluid drops |
US7533965B2 (en) | 2005-03-07 | 2009-05-19 | Eastman Kodak Company | Apparatus and method for electrostatically charging fluid drops |
Also Published As
Publication number | Publication date |
---|---|
DE2250378B2 (en) | 1976-10-28 |
HK81179A (en) | 1979-12-07 |
JPS5129770B2 (en) | 1976-08-27 |
DE2250378A1 (en) | 1973-04-19 |
GB1401453A (en) | 1975-07-16 |
FR2162853A5 (en) | 1973-07-20 |
JPS4847710A (en) | 1973-07-06 |
CA957008A (en) | 1974-10-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: EASTMAN KODAK COMPANY A NJ CORP. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MEAD CORPORATION THE A CORP. OF OH;REEL/FRAME:004237/0482 Effective date: 19831206 |