US20030101559A1 - Custom garment design and fabric printing system - Google Patents

Custom garment design and fabric printing system Download PDF

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Publication number
US20030101559A1
US20030101559A1 US10326308 US32630802A US2003101559A1 US 20030101559 A1 US20030101559 A1 US 20030101559A1 US 10326308 US10326308 US 10326308 US 32630802 A US32630802 A US 32630802A US 2003101559 A1 US2003101559 A1 US 2003101559A1
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Prior art keywords
ink
actuator
garment
high
nozzle
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Abandoned
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US10326308
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Kia Silverbrook
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Silverbrook Research Pty Ltd
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Silverbrook Research Pty Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/78Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
    • G06F21/79Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/30Ink jet printing
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/86Secure or tamper-resistant housings
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/0035User-machine interface; Control console
    • H04N1/00405Output means
    • H04N1/00408Display of information to the user, e.g. menus
    • H04N1/0044Display of information to the user, e.g. menus for image preview or review, e.g. to help the user position a sheet
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/21Intermediate information storage
    • H04N1/2104Intermediate information storage for one or a few pictures
    • H04N1/2112Intermediate information storage for one or a few pictures using still video cameras
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/21Intermediate information storage
    • H04N1/2104Intermediate information storage for one or a few pictures
    • H04N1/2112Intermediate information storage for one or a few pictures using still video cameras
    • H04N1/2154Intermediate information storage for one or a few pictures using still video cameras the still video camera incorporating a hardcopy reproducing device, e.g. a printer
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/262Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/2621Cameras specially adapted for the electronic generation of special effects during image pickup, e.g. digital cameras, camcorders, video cameras having integrated special effects capability
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/262Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/2628Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2129Authenticate client device independently of the user
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2101/00Still video cameras

Abstract

This patent describes an alternative form for the automatic creation of garments. The garment creation system includes mapping portions of an arbitrary image sensed by an image sensor device onto a garment and outputting a depiction of the garment. Additionally, a garment fabric printer is adapted to to print out corresponding pieces of the garment including the mapped portions. The printing can include printing out instructions for joining the pieces together on the fabric and printing such that joined pieces of fabric appear to be derived from a continuous pattern.

Description

  • Continuation Application of U.S. Ser. No. 09/112,759 filed on Jul. 10, 1998[0001]
  • CROSS REFERENCES TO RELATED APPLICATIONS
  • The following co-pending US patent applications, identified by their US patent application serial numbers (USSN), were filed simultaneously to the present application on Jul. 10, 1998, and are hereby incorporated by cross-reference: Ser. Nos. 09/113,060; 09/113,070; 09/113,073; 09/112,748; 09/112,747; 09/112,776; 09/112,750; 09/112,746; 09/112,743; 09/112,742; 09/112,741; 09/112,740; 09/112,739; 09/113,053; 09/112,738; 09/113,067; 09/113,063; 09/113,069; 09/112,744; 09/113,058; 09/112,777; 09/113,224; 09/112,804; 09/112,805; 09/113,072; 09/112,785; 09/112,797; 09/112,796; 09/113,071; 09/112,824; 09/113,090; 09/112,823; 09/113,222; 09/112,786; 09/113,051; 09/112,782; 09/113,056; 09/113,059; 09/113,091; 09/112,753; 09/113,055; 09/113,057; 09/113,054; 09/112,752; 09/112,759; 09/112,757; 09/112,758; 09/113,107; 09/112,829; 09/112,792; 09/112,791; 09/112,790; 09/112,789; 09/112,788; 09/112,795; 09/112,749; 09/112,784; 09/112,783; 09/112,763; 09/112,762; 09/112,737; 09/112,761; 09/113,223; 09/112,781; 09/113,052; 09/112,834; 09/113,103; 09/113,101; 09/112,751; 09/112,787; 09/112,802; 09/112,803; 09/113,097; 09/113,099; 09/113,084; 09/113,066; 09/112,778; 09/112,779; 09/113,077; 09/113,061; 09/112,818; 09/112,816; 09/112,772; 09/112,819; 09/112,815; 09/113,096; 09/113,068; 09/113,095; 09/112,808; 09/112,809; 09/112,780; 09/113,083; 09/113,121; 09/113,122; 09/112,793; 09/112,794; 09/113,128; 09/113,127; 09/112,756; 09/112,755; 09/112,754; 09/112,811; 09/112,812; 09/112,813; 09/112,814; 09/112,764; 09/112,765; 09/112,767; 09/112,768; 09/112,807; 09/112,806; 09/112,820; 09/112,821; 09/112,822; 09/112,825; 09/112,826; 09/112,827; 09/112,828; 09/113,111; 09/113,108; 09/113,109; 09/113,123; 09/113,114; 09/113,115; 09/113,129; 09/113,124; 09/113,125; 09/113,126; 09/113,119; 09/113,120; 09/113,221; 09/113,116; 09/113,118; 09/113,117; 09/113,113; 09/113,130; 09/113,110; 09/113,112; 09/113,087; 09/113,074; 09/113,089; 09/113,088; 09/112,771; 09/112,769; 09/112,770; 09/112,817; 09/113,076; 09/112,798; 09/112,801; 09/112,800; 09/112,799; 09/113,098; 09/112,833; 09/112,832; 09/112,831; 09/112,830; 09/112,836; 09/112,835; 09/113,102; 09/113,106; 09/113,105; 09/113,104; 09/112,810; 09/112,766; 09/113,085; 09/113,086; 09/113,094; 09/112,760; 09/112,773; 09/112,774; 09/112,775; 09/112,745; 09/113,092; 09/113,100; 09/113,093; 09/113,062; 09/113,064; 09/113,082; 09/113,081; 09/113,080; 09/113,079; 09/113,065; 09/113,078; 09/113,075. [0002]
  • STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
  • Not applicable. [0003]
  • FIELD OF THE INVENTION
  • The present invention relates to an image processing method and apparatus and, in particular, discloses a Garment Design and Printing System. [0004]
  • The present invention further relates to the creation of fabrics and garments utilising automated apparatuses. [0005]
  • BACKGROUND OF THE INVENTION
  • A number of creative judgements are made when any garment is created. Firstly, there is the shape and styling of the garment and additionally, there is the fabric colours and style. Often, a fashion designer will try many different alternatives and may even attempt to draw the final fashion product before creating the finished garment. [0006]
  • Such a process is generally unsatisfactory in providing a rapid and flexible turn around of the garments and also providing rapid judgement of the final appearance of a fashion product on a person. [0007]
  • SUMMARY OF THE INVENTION
  • It is an object of the present invention to provide an alternative form for analysing the look of garments and for their creation. A further object of the present invention is to provide for automatic fabric creation. [0008]
  • In accordance with the first aspect of the present invention there is provided A garment creation system comprising: [0009]
  • an expected image creation system including an image sensor device and an image display device, said image creation system mapping portions of an arbitrary image sensed by said image sensor device onto a garment and outputting on said display device a depiction of said garment; [0010]
  • a garment fabric printer adapted to be interconnected to said image creation system for printing out corresponding pieces of said garment including said mapped portions. [0011]
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • Notwithstanding any other forms which may fall within the scope of the present invention, preferred forms of the invention will now be described, by way of example only, with reference to the accompanying drawings which: [0012]
  • FIG. 1 illustrates the basic operation of an Artcam device; [0013]
  • FIG. 2 illustrates a series of Artcards for use with the preferred embodiment; [0014]
  • FIG. 3 is a flow diagram of the algorithm utilised by the preferred embodiment; and [0015]
  • FIG. 4 is a schematic illustration of the outputting of printed fabrics produced in accordance with the present invention.[0016]
  • DESCRIPTION OF PREFERRED AND OTHER EMBODIMENTS
  • The preferred embodiment is preferably implemented through suitable programming of a hand held camera device such as that described in co-pending U.S. patent application Ser. No. 09/113,060 entitled “Digital Instant Printing Camera with Image Processing Capability” (Docket ARTO1) filed concurrently herewith by the present applicant the content of which is hereby specifically incorporated by cross reference. [0017]
  • The aforementioned patent specification discloses a camera system, hereinafter known as an “Artcam” type camera, wherein sensed images can be directly printed out by an Artcam portable camera unit. Further, the aforementioned specification discloses means and methods for performing various manipulations on images captured by the camera sensing device leading to the production of various effects in an output image. The manipulations are disclosed to be highly flexible in nature and can be implemented through the insertion into the Artcam of cards having encoded thereon various instructions for the manipulation of images, the cards hereinafter being known as Artcards. The Artcam further has significant onboard processing power provided by an Artcam Central Processor unit (ACP) which is interconnected to a memory device for the storage of important data and images. [0018]
  • The aforementioned patent specification discloses an Artcam system as indicated [0019] 1 in FIG. 1. The Artcam system 1 relies on an Artcam 2 which takes Artcards 3 as an input. The Artcard 3 includes encoded information for manipulation of an image scene 4 so as to produce an output photo 5 which contains substantial manipulation in accordance with the instruction of Artcard 3. The Artcards 3 are designed to be extremely inexpensive and contain on one surface the encoding information and on the other surface a depiction of the likely effect which will be produced by the Artcard 3 when inserted in Artcam 2.
  • In accordance with the method of the preferred embodiment, as shown in FIG. 2, a large number of Artcards [0020] 3 are prepared and distributed in packs 10. Each pack 10 relates to clothing wear of a specific size and includes images eg. 11 of models having clothing apparel 12 on to which an image captured by the camera will be mapped. The mapping can be to different items of apparel on different Artcards 3. One form of mapping algorithm is as illustrated 20 in FIG. 3 wherein the input image 4 is first warped 21 utilising a warp map which maps the image to a repeating tiling pattern that produces attractive warping effects. Of course, many other forms of algorithms could be provided for producing an attractive form of material with the algorithm being provided on Artcard 3 (FIG. 1).
  • Next, a second warp [0021] 22 is provided for warping the output of first warp map 21 onto the specific model image in the Artcard. Therefore, warp 22 will be Artcard specific. The result can then be output 23 for printing as an art photo 5. Hence, a user is able to point an Artcam 2 at a design image 4 and produce art photo 5 which has a manipulated version of the image based upon a model's item of fashion apparel or garment. This process can be continued until a desirable result is produced.
  • Next, as indicated in FIG. 4, when a final selection has been made, the Artcam [0022] 2 can be connected by its USB port, as illustrated at 30, to a fabric printer 34 which can comprise an ink jet fabric printer and associated drive controller electronics etc. Either the Artcam 2 or the inkjet printer 34 can be programmed to print out on fabric 35 the garment pieces eg. 36 having on the surface 37 thereof the original warped image so as to produce a garment corresponding to that depicted by the model on the Artcard.
  • The output fabric can include tab portions eg. [0023] 38 for alignment and border regions eg. 39 in addition to instructions 40 for joining the garment pieces together. Preferably, the output program includes providing for warp matching of border regions so as to present a continuous appearance on the garment cross seams. Additionally, a user interface could be provided for utilising the same Artcard with many different output sizes so as to taken into account different shaped bodies. By utilisation of Artcam technology, a system can be provided for customised production of garments and rapid depiction of the likely results by means of utilisation of the Artcam device 2.
  • It would be appreciated by a person skilled in the art that numerous variations and/or modifications may be made to the present invention as shown in the specific embodiment without departing from the spirit or scope of the invention as broadly described. The present embodiment is, therefore, to be considered in all respects to be illustrative and not restrictive. [0024]
  • Ink Jet Technologies [0025]
  • The embodiments of the invention use an ink jet printer type device. Of course many different devices could be used. However presently popular ink jet printing technologies are unlikely to be suitable. [0026]
  • The most significant problem with thermal ink jet is power consumption. This is approximately 100 times that required for high speed, and stems from the energy-inefficient means of drop ejection. This involves the rapid boiling of water to produce a vapor bubble which expels the ink. Water has a very high heat capacity, and must be superheated in thermal ink jet applications. This leads to an efficiency of around 0.02%, from electricity input to drop momentum (and increased surface area) out. [0027]
  • The most significant problem with piezoelectric ink jet is size and cost. Piezoelectric crystals have a very small deflection at reasonable drive voltages, and therefore require a large area for each nozzle. Also, each piezoelectric actuator must be connected to its drive circuit on a separate substrate. This is not a significant problem at the current limit of around 300 nozzles per print head, but is a major impediment to the fabrication of pagewidth print heads with 19,200 nozzles. [0028]
  • Ideally, the ink jet technologies used meet the stringent requirements of in-camera digital color printing and other high quality, high speed, low cost printing applications. To meet the requirements of digital photography, new inkjet technologies have been created. The target features include: [0029]
  • low power (less than 10 Watts) [0030]
  • high resolution capability (1,600 dpi or more) [0031]
  • photographic quality output [0032]
  • low manufacturing cost [0033]
  • small size (pagewidth times minimum cross section) [0034]
  • high speed (<2 seconds per page). [0035]
  • All of these features can be met or exceeded by the ink jet systems described below with differing levels of difficulty. Forty-five different ink jet technologies have been developed by the Assignee to give a wide range of choices for high volume manufacture. These technologies form part of separate applications assigned to the present Assignee as set out in the list under the heading Cross References to Related Applications. [0036]
  • The ink jet designs shown here are suitable for a wide range of digital printing systems, from battery powered one-time use digital cameras, through to desktop and network printers, and through to commercial printing systems [0037]
  • For ease of manufacture using standard process equipment, the print head is designed to be a monolithic 0.5 micron CMOS chip with MEMS post processing. For color photographic applications, the print head is 100 mm long, with a width which depends upon the ink jet type. The smallest print head designed is covered in U.S. patent application Ser. No. 09/112,764, which is 0.35 mm wide, giving a chip area of 35 square mm. The print heads each contain 19,200 nozzles plus data and control circuitry. [0038]
  • Ink is supplied to the back of the print head by injection molded plastic ink channels. The molding requires 50 micron features, which can be created using a lithographically micromachined insert in a standard injection molding tool. Ink flows through holes etched through the wafer to the nozzle chambers fabricated on the front surface of the wafer. The print head is connected to the camera circuitry by tape automated bonding. [0039]
  • Tables of Drop-on-Demand Ink Jets [0040]
  • The present invention is useful in the field of digital printing, in particular, ink jet printing. A number of patent applications in this field were filed simultaneously and incorporated by cross reference. [0041]
  • Eleven important characteristics of the fundamental operation of individual ink jet nozzles have been identified. These characteristics are largely orthogonal, and so can be elucidated as an eleven dimensional matrix. Most of the eleven axes of this matrix include entries developed by the present assignee. [0042]
  • The following tables form the axes of an eleven dimensional table of ink jet types. [0043]
  • Actuator mechanism (18 types) [0044]
  • Basic operation mode (7 types) [0045]
  • Auxiliary mechanism (8 types) [0046]
  • Actuator amplification or modification method (17 types) [0047]
  • Actuator motion (19 types) [0048]
  • Nozzle refill method (4 types) [0049]
  • Method of restricting back-flow through inlet (10 types) [0050]
  • Nozzle clearing method (9 types) [0051]
  • Nozzle plate construction (9 types) [0052]
  • Drop ejection direction (5 types) [0053]
  • Ink type (7 types) [0054]
  • The complete eleven dimensional table represented by these axes contains 36.9 billion possible configurations of inkjet nozzle. While not all of the possible combinations result in a viable ink jet technology, many million configurations are viable. It is clearly impractical to elucidate all of the possible configurations. Instead, certain ink jet types have been investigated in detail. Forty-five such inkjet types were filed simultaneously to the present application. [0055]
  • Other ink jet configurations can readily be derived from these forty-five examples by substituting alternative configurations along one or more of the 11 axes. Most of the forty-five examples can be made into ink jet print heads with characteristics superior to any currently available ink jet technology. [0056]
  • Where there are prior art examples known to the inventor, one or more of these examples are listed in the examples column of the tables below. The simultaneously filed patent applications by the present applicant are listed by USSN numbers. In some cases, a print technology may be listed more than once in a table, where it shares characteristics with more than one entry. [0057]
  • Suitable applications for the ink jet technologies include: Home printers, Office network printers, Short run digital printers, Commercial print systems, Fabric printers, Pocket printers, Internet WWW printers, Video printers, Medical imaging, Wide format printers, Notebook PC printers, Fax machines, Industrial printing systems, Photocopiers, Photographic minilabs etc. [0058]
  • The information associated with the aforementioned 11 dimensional matrix are set out in the following tables. [0059]
    ACTUATOR MECHANISM (APPLIED ONLY TO SELECTED INK DROPS)
    Description Advantages Disadvantages Examples
    Thermal An electrothermal Large force High power Canon Bubblejet 1979
    bubble heater heats the ink generated Ink carrier limited Endo et al GB patent
    to above boiling Simple to water 2,007,162
    point, transferring construction Low efficiency Xerox heater-in-pit
    significant heat to No moving High temperatures 1990 Hawkins et al
    the aqueous ink. A parts required USP 4,899,181
    bubble nucleates Fast operation High mechanical Hewlett-Packard TIJ
    and quickly forms, Small chip area stress 1982 Vaught et al USP
    expelling the ink. required for Unusual materials 4,490,728
    The efficiency of the actuator required
    process is low, with Large drive
    typically less than transistors
    0.05% of the Cavitation causes
    electrical energy actuator failure
    being transformed Kogation reduces
    into kinetic energy bubble formation
    of the drop. Large print heads
    are difficult to
    fabricate
    Piezo- A piezoelectric Low power Very large area Kyser et al USP
    electric crystal such as lead consumption required for 3,946,398
    lanthanum zirconate Many ink types actuator Zoltan USP 3,683,212
    (PZT) is electrically can be used Difficult to 1973 Stemme USP
    activated, and either Fast operation integrate with 3,747,120
    expands, shears, or High efficiency electronics Epson Stylus
    bends to apply High voltage drive Tektronix
    pressure to the ink, transistors USSN 09/112,803
    ejecting drops. required
    Full pagewidth
    print heads
    impractical due to
    actuator size
    Requires electrical
    poling in high
    field strengths
    during
    manufacture
    Electro- An electric field is Low power Low maximum Seiko Epson, Usui et all
    strictive used to activate consumption strain (approx. JP 253401/96
    electrostriction in Many ink types 0.01%) USSN 09/112,803
    relaxor materials can be used Large area
    such as lead Low thermal required for
    lanthanum zirconate expansion actuator due to
    titanate (PLZT) or Electric field low strain
    lead magnesium strength Response speed is
    niobate (PMN). required marginal (˜10 μs)
    (approx. 3.5 High voltage drive
    V/μm) can be transistors
    generated required
    without Full pagewidth
    difficulty print heads
    Does not impractical due to
    require actuator size
    electrical poling
    Ferro- An electric field is Low power Difficult to USSN 09/112,803
    electric used to induce a consumption integrate with
    phase transition Many ink types electronics
    between the can be used Unusual materials
    antiferroelectric Fast operation such as PLZSnT
    (AFE) and (<1 μs) are required
    ferroelectric (FE) Relatively high Actuators require
    phase. Perovskite longitudinal a large area
    materials such as tin strain
    modified lead High efficiency
    lanthanum zirconate Electric field
    titanate (PLZSnT) strength of
    exhibit large strains around 3 V/μm
    of up to 1% can be readily
    associated with the provided
    AFE to FE phase
    transition.
    Electro- Conductive plates Low power Difficult to USSN 09/112,787;
    static are separated by a consumption operate 09/112,803
    plates compressible or Many ink types electrostatic
    fluid dielectric can be used devices in an
    (usually air). Upon Fast operation aqueous
    application of a environment
    voltage, the plates The electrostatic
    attract each other actuator will
    and displace ink, normally need to
    causing drop be separated from
    ejection. The the ink
    conductive plates Very large area
    may be in a comb or required to
    honeycomb achieve high
    structure, or stacked forces
    to increase the High voltage drive
    surface area and transistors may be
    therefore the force. required
    Full pagewidth
    print heads are not
    competitive due to
    actuator size
    Electro- A strong electric Low current High voltage 1989 Saito et al, USP
    static pull field is applied to consumption required 4,799,068
    on ink the ink, whereupon Low May be damaged 1989 Miura et al, USP
    electrostatic temperature by sparks due to 4,810,954
    attraction air breakdown Tone-jet
    accelerates the ink Required field
    towards the print strength increases
    medium. as the drop size
    decreases
    High voltage drive
    transistors
    required
    Electrostatic field
    attracts dust
    Permanent An electromagnet Low power Complex USSN 09/113,084;
    magnet directly attracts a consumption fabrication 09/112,779
    electro- permanent magnet, Many ink types Permanent
    magnetic displacing ink and can be used magnetic material
    causing drop Fast operation such as
    ejection. Rare earth High efficiency Neodymium Iron
    magnets with a field Easy extension Boron (NdFeB)
    strength around 1 from single required.
    Tesla can be used. nozzles to High local
    Examples are: pagewidth print currents required
    Samarium Cobalt heads Copper
    (SaCo) and metalization
    magnetic materials should be used for
    in the neodymium long
    iron boron family electromigration
    (NdFeB, lifetime and low
    NdDyFeBNb, resistivity
    NdDyFeB, etc) Pigmented inks
    are usually
    infeasible
    Operating
    temperature
    limited to the
    Curie temperature
    (around 540 K)
    Soft A solenoid induced Low power Complex USSN 09/112,751;
    magnetic a magnetic field in a consumption fabrication 09/113,097; 09/113,066;
    core soft magnetic core Many ink types Materials not 09/112,779; 09/113,061;
    electro- or yoke fabricated can be used usually present in 09/112,816; 09/112,772;
    magnetic from a ferrous Fast operation a CMOS fab such 09/112,815
    material such as High efficiency as NiFe, CoNiFe,
    electroplated iron Easy extension or CoFe are
    alloys such as from single required
    CoNiFe [1], CoFe, nozzles to High local
    or NiFe alloys. pagewidth print currents required
    Typically, the soft heads Copper
    magnetic material is metalization
    in two parts, which should be used for
    are normally held long
    apart by a spring. electromigration
    When the solenoid lifetime and low
    is actuated, the two resistivity
    parts attract, Electroplating is
    displacing the ink. required
    High saturation
    flux density is
    required (2.0-2.1
    T is achievable
    with CoNiFe [1])
    Lorenz The Lorenz force Low power Force acts as a USSN 09/113,099;
    force acting on a current consumption twisting motion 09/113,077; 09/112,818;
    carrying wire in a Many ink types Typically, only a 09/112,819
    magnetic field is can be used quarter of the
    utilized. Fast operation solenoid length
    This allows the High efficiency provides force in a
    magnetic field to be Easy extension useful direction
    supplied externally from single High local
    to the print head, for nozzles to currents required
    example with rare pagewidth print Copper
    earth permanent heads metalization
    magnets. should be used for
    Only the current long
    carrying wire need electromigration
    be fabricated on the lifetime and low
    print-head, resistivity
    simplifying Pigmented inks
    materials are usually
    requirements. infeasible
    Magneto- The actuator uses Many ink types Force acts as a Fischenbeck, USP
    striction the giant can be used twisting motion 4,032,929
    magnetostrictive Fast operation Unusual materials USSN 09/113,121
    effect of materials Easy extension such as Terfenol-
    such as Terfenol-D from single D are required
    (an alloy of terbium, nozzles to High local
    dysprosium and iron pagewidth print currents required
    developed at the heads Copper
    Naval Ordnance High force is metalization
    Laboratory, hence available should be used for
    Ter-Fe-NOL). For long
    best efficiency, the electromigration
    actuator should be lifetime and low
    pre-stressed to resistivity
    approx. 8 MPa. Pre-stressing may
    be required
    Surface Ink under positive Low power Requires Silverbrook, EP 0771
    tension pressure is held in a consumption supplementary 658 A2 and related
    reduction nozzle by surface Simple force to effect patent applications
    tension. The surface construction drop separation
    tension of the ink is No unusual Requires special
    reduced below the materials ink surfactants
    bubble threshold, required in Speed may be
    causing the ink to fabrication limited by
    egress from the High efficiency surfactant
    nozzle. Easy extension properties
    from single
    nozzles to
    pagewidth print
    heads
    Viscosity The ink viscosity is Simple Requires Silverbrook, EP 0771
    reduction locally reduced to construction supplementary 658 A2 and related
    select which drops No unusual force to effect patent applications
    are to be ejected. A materials drop separation
    viscosity reduction required in Requires special
    can be achieved fabrication ink viscosity
    electrothermally Easy extension properties
    with most inks, but from single High speed is
    special inks can be nozzles to difficult to achieve
    engineered for a pagewidth print Requires
    100:1 viscosity heads oscillating ink
    reduction. pressure
    A high
    temperature
    difference
    (typically 80
    degrees) is
    required
    Acoustic An acoustic wave is Can operate Complex drive 1993 Hadimioglu et al,
    generated and without a nozzle circuitry EUP 550,192
    focussed upon the plate Complex 1993 Elrod et al, EUP
    drop ejection region. fabrication 572,220
    Low efficiency
    Poor control of
    drop position
    Poor control of
    drop volume
    Thermo- An actuator which Low power Efficient aqueous USSN 09/112,802;
    elastic relies upon consumption operation requires 09/112,778; 09/112,815;
    bend differential thermal Many ink types a thermal insulator 09/113,096; 09/113,068;
    actuator expansion upon can be used on the hot side 09/113,095; 09/112,808;
    Joule heating is Simple planar Corrosion 09/112,809; 09/112,780;
    used. fabrication prevention can be 09/113,083; 09/112,793;
    Small chip area difficult 09/112,794; 09/113,128;
    required for Pigmented inks 09/113,127; 09/112,756;
    each actuator may be infeasible, 09/112,755; 09/112,754;
    Fast operation as pigment 09/112,811; 09/112,812;
    High efficiency particles may jam 09/112,813; 09/112,814;
    CMOS the bend actuator 09/112,764; 09/112,765;
    compatible 09/112,767; 09/112,768
    voltages and
    currents
    Standard
    MEMS
    processes can
    be used
    Easy extension
    from single
    nozzles to
    pagewidth print
    heads
    High CTE A material with a High force can Requires special USSN 09/112,778;
    thermo- very high coefficient be generated material (e.g. 09/112,815; 09/113,096;
    elastic of thermal Three methods PTFE) 09/113,095; 09/112,808;
    actuator expansion (CTE) of PTFE Requires a PTFE 09/112,809; 09/112,780;
    such as deposition are deposition 09/113,083; 09/112,793;
    polytetrafluoroethyl- under process, which is 09/112,794; 09/113,128;
    ene (PTFE) is used. development: not yet standard in 09/113,127; 09/112,756;
    As high CTE chemical vapor ULSI fabs 09/112,807; 09/112,806;
    materials are usually deposition PTFE deposition 09/112,820
    non-conductive, a (CVD), spin cannot be
    heater fabricated coating, and followed with
    from a conductive evaporation high temperature
    material is PTFE is a (above 350° C.)
    incorporated. A 50 candidate for processing
    μm long PTFE bend low dielectric Pigmented inks
    actuator with constant may be infeasible,
    polysilicon heater insulation in as pigment
    and 15 mW power ULSI particles may jam
    input can provide Very low power the bend actuator
    180 μN force and 10 consumption
    μm deflection. Many ink types
    Actuator motions can be used
    include: Simple planar
    Bend fabrication
    Push Small chip area
    Buckle required for
    Rotate each actuator
    Fast operation
    High efficiency
    CMOS
    compatible
    voltages and
    currents
    Easy extension
    from single
    nozzles to
    pagewidth print
    heads
    Conduct- A polymer with a High force can Requires special USSN 09/113,083
    ive high coefficient of be generated materials
    polymer thermal expansion Very low power development
    thermo- (such as PTFE) is consumption (High CTE
    elastic doped with Many ink types conductive
    actuator conducting can be used polymer)
    substances to Simple planar Requires a PTFE
    increase its fabrication deposition
    conductivity to Small chip area process, which is
    about 3 orders of required for not yet standard in
    magnitude below each actuator ULSI fabs
    that of copper. The Fast operation PTFE deposition
    conducting polymer High efficiency cannot be
    expands when CMOS followed with
    resistively heated. compatible high temperature
    Examples of voltages and (above 350° C.)
    conducting dopants currents processing
    include: Easy extension Evaporation and
    Carbon nanotubes from single CVD deposition
    Metal fibers nozzles to techniques cannot
    Conductive pagewidth print be used
    polymers such as heads Pigmented inks
    doped may be infeasible,
    polythiophene as pigment
    Carbon granules particles may jam
    the bend actuator
    Shape A shape memory High force is Fatigue limits USSN 09/113,122
    memory alloy such as TiNi available maximum number
    alloy (also known as (stresses of of cycles
    Nitinol-Nickel hundreds of Low strain (1%) is
    Titanium alloy MPa) required to extend
    developed at the Large strain is fatigue resistance
    Naval Ordnance available (more Cycle rate limited
    Laboratory) is than 3%) by heat removal
    thermally switched High corrosion Requires unusual
    between its weak resistance materials (TiNi)
    martensitic state and Simple The latent heat of
    its high stiffness construction transformation
    austenic state. The Easy extension must be provided
    shape of the actuator from single High current
    in its martensitic nozzles to operation
    state is deformed pagewidth print Requires pre-
    relative to the heads stressing to distort
    austenic shape. The Low voltage the martensitic
    shape change causes operation state
    ejection of a drop.
    Linear Linear magnetic Linear Magnetic Requires unusual USSN 09/113,061
    Magnetic actuators include the actuators can be semiconductor
    Actuator Linear Induction constructed with materials such as
    Actuator (LIA), high thrust, long soft magnetic
    Linear Permanent travel, and high alloys (e.g.
    Magnet efficiency using CoNiFe)
    Synchronous planar Some varieties
    Actuator (LPMSA), semiconductor also require
    Linear Reluctance fabrication permanent
    Synchronous techniques magnetic
    Actuator (LRSA), Long actuator materials such as
    Linear Switched travel is Neodymium iron
    Reluctance Actuator available boron (NdFeB)
    (LSRA), and the Medium force is Requires complex
    Linear Stepper available multi-phase drive
    Actuator (LSA). Low voltage circuitry
    operation High current
    operation
  • [0060]
    BASIC OPERATION MODE
    Description Advantages Disadvantages Examples
    Actuator This is the simplest Simple Drop repetition Thermal ink jet
    directly mode of operation: operation rate is usually Piezoelectric ink jet
    pushes ink the actuator directly No external limited to around USSN 09/112,751;
    supplies sufficient fields required 10 kHz. 09/112,787; 09/112,802;
    kinetic energy to Satellite drops However, this is 09/112,803; 09/113,097;
    expel the drop. The can be avoided not fundamental 09/113,099; 09/113,084;
    drop must have a if drop velocity to the method, 09/112,778; 09/113,077;
    sufficient velocity to is less than 4 but is related to 09/113,061; 09/112,816;
    overcome the m/s the refill method 09/112,819; 09/113,095;
    surface tension. Can be efficient, normally used 09/112,809; 09/112,780;
    depending upon All of the drop 09/113,083; 09/113,121;
    the actuator kinetic energy 09/113,122; 09/112,793;
    used must be provided 09/112,794; 09/113,128;
    by the actuator 09/113,127; 09/112,756;
    Satellite drops 09/112,755; 09/112,754;
    usually form if 09/112,811; 09/112,812;
    drop velocity is 09/112,813; 09/112,814;
    greater than 4.5 09/112,764; 09/112,765;
    m/s 09/112,767; 09/112,768;
    09/112,807; 09/112,806;
    09/112,820
    Proximity The drops to be Very simple Requires close Silverbrook, EP 0771
    printed are selected print head proximity 658 A2 and related
    by some manner fabrication can between the print patent applications
    (e.g. thermally be used head and the
    induced surface The drop print media or
    tension reduction of selection means transfer roller
    pressurized ink). does not need to May require two
    Selected drops are provide the print heads
    separated from the energy required printing alternate
    ink in the nozzle by to separate the rows of the
    contact with the drop from the image
    print medium or a nozzle Monolithic color
    transfer roller. print heads are
    difficult
    Electro- The drops to be Very simple Requires very Silverbrook, EP 0771
    static pull printed are selected print head high electrostatic 658 A2 and related
    on ink by some manner fabrication can field patent applications
    (e.g. thermally be used Electrostatic field Tone-Jet
    induced surface The drop for small nozzle
    tension reduction of selection means sizes is above air
    pressurized ink). does not need to breakdown
    Selected drops are provide the Electrostatic field
    separated from the energy required may attract dust
    ink in the nozzle by to separate the
    a strong electric drop from the
    field. nozzle
    Magnetic The drops to be Very simple Requires Silverbrook, EP 0771
    pull on ink printed are selected print head magnetic ink 658 A2 and related
    by some manner fabrication can Ink colors other patent applications
    (e.g. thermally be used than black are
    induced surface The drop difficult
    tension reduction of selection means Requires very
    pressurized ink). does not need to high magnetic
    Selected drops are provide the fields
    separated from the energy required
    ink in the nozzle by to separate the
    a strong magnetic drop from the
    field acting on the nozzle
    magnetic ink.
    Shutter The actuator moves High speed Moving parts are USSN 09/112,818;
    a shutter to block (>50 kHz) required 09/112,815; 09/112,808
    ink flow to the operation can be Requires ink
    nozzle. The ink achieved due to pressure
    pressure is pulsed at reduced refill modulator
    a multiple of the time Friction and wear
    drop ejection Drop timing can must be
    frequency. be very accurate considered
    The actuator Stiction is
    energy can be possible
    very low
    Shuttered The actuator moves Actuators with Moving parts are USSN 09/113,066;
    grill a shutter to block small travel can required 09/112,772; 09/113,096;
    ink flow through a be used Requires ink 09/113,068
    grill to the nozzle. Actuators with pressure
    The shutter small force can modulator
    movement need be used Friction and wear
    only be equal to the High speed must be
    width of the grill (>50 kHz) considered
    holes. operation can be Stiction is
    achieved possible
    Pulsed A pulsed magnetic Extremely low Requires an USSN 09/112,779
    magnetic field attracts an ‘ink energy external pulsed
    pull on ink pusher’ at the drop operation is magnetic field
    pusher ejection frequency. possible Requires special
    An actuator controls No heat materials for both
    a catch, which dissipation the actuator and
    prevents the ink problems the ink pusher
    pusher from moving Complex
    when a drop is not construction
    to be ejected.
  • [0061]
    AUXILIARY MECHANISM (APPLIED TO ALL NOZZLES)
    Description Advantages Disadvantages Examples
    None The actuator directly Simplicity of Drop ejection Most ink jets, including
    fires the ink drop, construction energy must be piezoelectric and thermal
    and there is no Simplicity of supplied by bubble.
    external field or operation individual nozzle USSN 09/112,751;
    other mechanism Small physical actuator 09/112,787; 09/112,802;
    required. size 09/112,803; 09/113,097;
    09/113,084; 09/113,078;
    09/113,077; 09/113,061;
    09/112,816; 09/113,095;
    09/112,809; 09/112,780;
    09/113,083; 09/113,121;
    09/113,122; 09/112,793;
    09/112,794; 09/113,128;
    09/113,127; 09/112,756;
    09/112,755; 09/112,754;
    09/112,811; 09/112,812;
    09/112,813; 09/112,814;
    09/112,764; 09/112,765;
    09/112,767; 09/112,768;
    09/112,807; 09/112,806;
    09/112,820
    Oscillating The ink pressure Oscillating ink Requires external Silverbrook, EP 0771
    ink oscillates, providing pressure can ink pressure 658 A2 and related
    pressure much of the drop provide a refill oscillator patent applications
    (including ejection energy. The pulse, allowing Ink pressure USSN 09/113,066;
    acoustic actuator selects higher operating phase and 09/112,818; 09/112,772;
    stimula- which drops are to speed amplitude must 09/112,815; 09/113,096;
    tion) be fired by The actuators be carefully 09/113,068; 09/112,808
    selectively blocking may operate controlled
    or enabling nozzles. with much Acoustic
    The ink pressure lower energy reflections in the
    oscillation may be Acoustic lenses ink chamber
    achieved by can be used to must be designed
    vibrating the print focus the sound for
    head, or preferably on the nozzles
    by an actuator in the
    ink supply.
    Media The print head is Low power Precision Silverbrook, EP 0771
    proximity placed in close High accuracy assembly 658 A2 and related
    proximity to the Simple print required patent applications
    print medium. head Paper fibers may
    Selected drops construction cause problems
    protrude from the Cannot print on
    print head further rough substrates
    than unselected
    drops, and contact
    the print medium.
    The drop soaks into
    the medium fast
    enough to cause
    drop separation.
    Transfer Drops are printed to High accuracy Bulky Silverbrook, EP 0771
    roller a transfer roller Wide range of Expensive 658 A2 and related
    instead of straight to print substrates Complex patent applications
    the print medium. A can be used construction Tektronix hot melt
    transfer roller can Ink can be dried piezoelectric ink jet
    also be used for on the transfer Any of USSN
    proximity drop roller 09/112,751; 09/112,787;
    separation. 09/112,802; 09/112,803;
    09/113,097; 09/113,099;
    09/113,084; 09/113,066;
    09/112,778; 09/112,779;
    09/113,077; 09/113,061;
    09/112,818; 09/112,816;
    09/112,772; 09/112,819;
    09/112,815; 09/113,096;
    09/113,068; 09/113,095;
    09/112,808; 09/112,809;
    09/112,780; 09/113,083;
    09/113,121; 09/113,122;
    09/112,793; 09/112,794;
    09/113,128; 09/113,127;
    09/112,756; 09/112,755;
    09/112,754; 09/112,811;
    09/112,812; 09/112,813;
    09/112,814; 09/112,764;
    09/112,765; 09/112,767;
    09/112,768; 09/112,807;
    09/112,806; 09/112,820;
    09/112,821
    Electro- An electric field is Low power Field strength Silverbrook, EP 0771
    static used to accelerate Simple print required for 658 A2 and related
    selected drops head separation of patent applications
    towards the print construction small drops is Tone-Jet
    medium. near or above air
    breakdown
    Direct A magnetic field is Low power Requires Silverbrook, EP 0771
    magnetic used to accelerate Simple print magnetic ink 658 A2 and related
    field selected drops of head Requires strong patent applications
    magnetic ink construction magnetic field
    towards the print
    medium.
    Cross The print head is Does not Requires external USSN 09/113,099;
    magnetic placed in a constant require magnet 09/112,819
    field magnetic field. The magnetic Current densities
    Lorenz force in a materials to be may be high,
    current carrying integrated in the resulting in
    wire is used to move print head electromigration
    the actuator. manufacturing problems
    process
    Pulsed A pulsed magnetic Very low power Complex print USSN 09/112,779
    magnetic field is used to operation is head construction
    field cyclically attract a possible Magnetic
    paddle, which Small print head materials
    pushes on the ink. A size required in print
    small actuator head
    moves a catch,
    which selectively
    prevents the paddle
    from moving.
  • [0062]
    Description Advantages Disadvantages Examples
    ACTUATOR AMPLIFICATION OR MODIFICATION METHOD
    None No actuator Operational Many actuator Thermal Bubble Ink jet
    mechanical simplicity mechanisms USSN 09/112,751;
    amplification is have 09/112,787; 09/113,099;
    used. The actuator insufficient 09/113,084; 09/112,819;
    directly drives the travel, or 09/113,121; 09/113,122
    drop ejection insufficient
    process. force, to
    efficiently drive
    the drop
    ejection process
    Differential An actuator material Provides greater High stresses Piezoelectric
    expansion expands more on travel in a are involved USSN 09/112,802;
    bend one side than on the reduced print Care must be 09/112,778; 09/112,815;
    actuator other. The head area taken that the 09/113,096; 09/113,068;
    expansion may be materials do not 09/113,095; 09/112,808;
    thermal, delaminate 09/112,809; 09/112,780;
    piezoelectric, Residual bend 09/113,083; 09/112,793;
    magnetostrictive, or resulting from 09/113,128; 09/113,127;
    other mechanism. high 09/112,756; 09/112,755;
    The bend actuator temperature or 09/112,754; 09/112,811;
    converts a high high stress 09/112,812; 09/112,813;
    force low travel during 09/112,814; 09/112,764;
    actuator mechanism formation 09/112,765; 09/112,767;
    to high travel, lower 09/112,768; 09/112,807;
    force mechanism. 09/112,806; 09/112,820
    Transient A trilayer bend Very good High stresses USSN 09/112,767;
    bend actuator where the temperature are involved 09/112,768
    actuator two outside layers stability Care must be
    are identical. This High speed, as a taken that the
    cancels bend due to new drop can be materials do not
    ambient temperature fired before heat delaminate
    and residual stress. dissipates
    The actuator only Cancels residual
    responds to transient stress of
    heating of one side formation
    or the other.
    Reverse The actuator loads a Better coupling Fabrication USSN 09/113,097;
    spring spring. When the to the ink complexity 09/113,077
    actuator is turned High stress in
    off, the spring the spring
    releases. This can
    reverse the
    force/distance curve
    of the actuator to
    make it compatible
    with the force/time
    requirements of the
    drop ejection.
    Actuator A series of thin Increased travel Increased Some piezoelectric ink
    stack actuators are Reduced drive fabrication jets
    stacked. This can be voltage complexity USSN 09/112,803
    appropriate where Increased
    actuators require possibility of
    high electric field short circuits
    strength, such as due to pinholes
    electrostatic and
    piezoelectric
    actuators.
    Multiple Multiple smaller Increases the Actuator forces USSN 09/113,061;
    actuators actuators are used force available may not add 09/112,818; 09/113,096;
    simultaneously to from an actuator linearly, 09/113,095; 09/112,809;
    move the ink. Each Multiple reducing 09/112,794; 09/112,807;
    actuator need actuators can be efficiency 09/112,806
    provide only a positioned to
    portion of the force control ink flow
    required. accurately
    Linear A linear spring is Matches low Requires print USSN 09/112,772
    Spring used to transform a travel actuator head area for
    motion with small with higher the spring
    travel and high force travel
    into a longer travel, requirements
    lower force motion. Non-contact
    method of
    motion
    transformation
    Coiled A bend actuator is Increases travel Generally USSN 09/112,815;
    actuator coiled to provide Reduces chip restricted to 09/112,808; 09/112,811;
    greater travel in a area planar 09/112,812
    reduced chip area. Planar implementations
    implementations due to extreme
    are relatively fabrication
    easy to difficulty in
    fabricate. other
    orientations.
    Flexure A bend actuator has Simple means Care must be USSN 09/112,779;
    bend a small region near of increasing taken not to 09/113,068; 09/112,754
    actuator the fixture point, travel of a bend exceed the
    which flexes much actuator elastic limit in
    more readily than the flexure area
    the remainder of the Stress
    actuator. The distribution is
    actuator flexing is very uneven
    effectively Difficult to
    converted from an accurately
    even coiling to an model with
    angular bend, finite element
    resulting in greater analysis
    travel of the actuator
    tip.
    Catch The actuator Very low Complex USSN 09/112,779
    controls a small actuator energy construction
    catch. The catch Very small Requires
    either enables or actuator size external force
    disables movement Unsuitable for
    of an ink pusher that pigmented inks
    is controlled in a
    bulk manner.
    Gears Gears can be used to Low force, low Moving parts USSN 09/112,818
    increase travel at the travel actuators are required
    expense of duration. can be used Several actuator
    Circular gears, rack Can be cycles are
    and pinion, ratchets, fabricated using required
    and other gearing standard surface More complex
    methods can be MEMS drive electronics
    used. processes Complex
    construction
    Friction,
    friction, and
    wear are
    possible
    Buckle A buckle plate can Very fast Must stay S. Hirata et al, “An Ink-jet
    plate be used to change a movement within elastic Head Using Diaphragm
    slow actuator into a achievable limits of the Microactuator”, Proc.
    fast motion. It can materials for IEEE MEMS, Feb. 1996,
    also convert a high long device life pp 418-423.
    force, low travel High stresses USSN 09/113,096;
    actuator into a high involved 09/112,793
    travel, medium force Generally high
    motion. power
    requirement
    Tapered A tapered magnetic Linearizes the Complex USSN 09/112,816
    magnetic pole can increase magnetic construction
    pole travel at the expense force/distance
    of force. curve
    Lever A lever and fulcrum Matches low High stress USSN 09/112,755;
    is used to transform travel actuator around the 09/112,813; 09/112,814
    a motion with small with higher fulcrum
    travel and high force travel
    into a motion with requirements
    longer travel and Fulcrum area
    lower force. The has no linear
    lever can also movement, and
    reverse the direction can be used for
    of travel. a fluid seal
    Rotary The actuator is High Complex USSN 09/112,794
    impeller connected to a mechanical construction
    rotary impeller. A advantage Unsuitable for
    small angular The ratio of pigmented inks
    deflection of the force to travel
    actuator results in a of the actuator
    rotation of the can be matched
    impeller vanes, to the nozzle
    which push the ink requirements by
    against stationary varying the
    vanes and out of the number of
    nozzle. impeller vanes
    Acoustic A refractive or No moving Large area 1993 Hadimioglu et al,
    lens diffractive (e.g. zone parts required EUP 550,192
    plate) acoustic lens Only relevant 1993 Elrod et al, EUP
    is used to for acoustic ink 572,220
    concentrate sound jets
    waves.
    Sharp A sharp point is Simple Difficult to Tone-jet
    conductive used to concentrate construction fabricate using
    point an electrostatic field. standard VLSI
    processes for a
    surface ejecting
    ink-jet
    Only relevant
    for electrostatic
    ink jets
    ACTUATOR MOTION
    Volume The volume of the Simple High energy is Hewlett-Packard Thermal
    expansion actuator changes, construction in typically Ink jet
    pushing the ink in the case of required to Canon Bubblejet
    all directions. thermal ink jet achieve volume
    expansion. This
    leads to thermal
    stress,
    cavitation, and
    kogation in
    thermal ink jet
    implementations
    Linear, The actuator moves Efficient High fabrication USSN 09/112,751;
    normal to in a direction normal coupling to ink complexity may 09/112,787; 09/112,803;
    chip to the print head drops ejected be required to 09/113,084; 09/113,077;
    surface surface. The nozzle normal to the achieve 09/112,816
    is typically in the surface perpendicular
    line of movement. motion
    Parallel to The actuator moves Suitable for Fabrication USSN 09/113,061;
    chip parallel to the print planar complexity 09/112,818; 09/112,772;
    surface head surface. Drop fabrication Friction 09/112,754; 09/112,811;
    ejection may still be Stiction 09/112,812; 09/112,813
    normal to the
    surface.
    Membrane An actuator with a The effective Fabrication 1982 Howkins USP
    push high force but small area of the complexity 4,459,601
    area is used to push actuator Actuator size
    a stiff membrane becomes the Difficulty of
    that is in contact membrane area integration in a
    with the ink. VLSI process
    Rotary The actuator causes Rotary levers Device USSN 09/113,097;
    the rotation of some maybe used to complexity 09/113,066; 09/112,818;
    element, such a grill increase travel May have 09/112,794
    or impeller Small chip area friction at a
    requirements pivot point
    Bend The actuator bends A very small Requires the 1970 Kyser et al USP
    when energized. change in actuator to be 3,946,398
    This may be due to dimensions can made from at 1973 Stemme USP
    differential thermal be converted to least two 3,747,120
    expansion, a large motion. distinct layers, 09/112,802; 09/112,778;
    piezoelectric or to have a 09/112,779; 09/113,068;
    expansion, thermal 09/112,780; 09/113,083;
    magnetostriction, or difference 09/113,121; 09/113,128;
    other form of across the 09/113,127; 09/112,756;
    relative dimensional actuator 09/112,754; 09/112,811;
    change. 09/112,812
    Swivel The actuator swivels Allows Inefficient USSN 09/113,099
    around a central operation where coupling to the
    pivot. This motion is the net linear ink motion
    suitable where there force on the
    are opposite forces paddle is zero
    applied to opposite Small chip area
    sides of the paddle, requirements
    e.g. Lorenz force.
    Straighten The actuator is Can be used Requires careful USSN 09/113,122;
    normally bent, and with shape balance of 09/112,755
    straightens when memory alloys stresses to
    energized. where the ensure that the
    austenic phase quiescent bend
    is planar is accurate
    Double The actuator bends One actuator Difficult to USSN 09/112,813;
    bend in one direction can be used to make the drops 09/112,814; 09/112,764
    when one element is power two ejected by both
    energized, and nozzles. bend directions
    bends the other way Reduced chip identical.
    when another size. A small
    element is Not sensitive to efficiency loss
    energized. ambient compared to
    temperature equivalent
    single bend
    actuators.
    Shear Energizing the Can increase the Not readily 1985 Fishbeck USP
    actuator causes a effective travel applicable to 4,584,590
    shear motion in the of piezoelectric other actuator
    actuator material. actuators mechanisms
    Radial The actuator Relatively easy High force 1970 Zoltan USP
    con- squeezes an ink to fabricate required 3,683,212
    striction reservoir, forcing single nozzles Inefficient
    ink from a from glass Difficult to
    constricted nozzle. tubing as integrate with
    macroscopic VLSI processes
    structures
    Coil/ A coiled actuator Easy to Difficult to USSN 09/112,815;
    uncoil uncoils or coils fabricate as a fabricate for 09/112,808; 09/112,811;
    more tightly. The planar VLSI non-planar 09/112,812
    motion of the free process devices
    end of the actuator Small area Poor out-of-
    ejects the ink. required, plane stiffness
    therefore low
    cost
    Bow The actuator bows Can increase the Maximum USSN 09/112,819;
    (or buckles) in the speed of travel travel is 09/113,096; 09/112,793
    middle when Mechanically constrained
    energized. rigid High force
    required
    Push-Pull Two actuators The structure is Not readily USSN 09/113,096
    control a shutter. pinned at both suitable for ink
    One actuator pulls ends, so has a jets which
    the shutter, and the high out-of- directly push
    other pushes it. plane rigidity the ink
    Curl A set of actuators Good fluid flow Design USSN 09/113,095;
    inwards curl inwards to to the region complexity 09/112,807
    reduce the volume behind the
    of ink that they actuator
    enclose. increases
    efficiency
    Curl A set of actuators Relatively Relatively large USSN 09/112,806
    outwards curl outwards, simple chip area
    pressurizing ink in a construction
    chamber
    surrounding the
    actuators, and
    expelling ink from a
    nozzle in the
    chamber.
    Iris Multiple vanes High efficiency High fabrication USSN 09/112,809
    enclose a volume of Small chip area complexity
    ink. These Not suitable for
    simultaneously pigmented inks
    rotate, reducing the
    volume between the
    vanes.
    Acoustic The actuator The actuator Large area 1993 Hadimioglu et al,
    vibration vibrates at a high can be required for EUP 550,192
    frequency. physically efficient 1993 Elrod et al, EUP
    distant from the operation at 572,220
    ink useful
    frequencies
    Acoustic
    coupling and
    crosstalk
    Complex drive
    circuitry
    Poor control of
    drop volume
    and position
    None In various ink jet No moving Various other Silverbrook, EP 0771 658
    designs the actuator parts tradeoffs are A2 and related patent
    does not move. required to applications
    eliminate Tone-jet
    moving parts
  • [0063]
    NOZZLE REFILL METHOD
    Description Advantages Disadvantages Examples
    Surface This is the normal Fabrication Low speed Thermal ink jet
    tension way that ink jets are simplicity Surface tension Piezoelectric ink jet
    refilled. After the Operational force relatively USSN-09/112,751;
    actuator is energized, simplicity small 09/113,084; 09/112,779;
    it typically returns compared to 09/112,816; 09/112,819;
    rapidly to its normal actuator force 09/113,095; 09/112,809;
    position. This rapid Long refill 09/112,780; 09/113,083;
    return sucks in air time usually 09/113,121; 09/113,122;
    through the nozzle dominates the 09/112,793; 09/112,794;
    opening. The ink total repetition 09/113,128; 09/113,127;
    surface tension at the rate 09/112,756; 09/112,755;
    nozzle then exerts a 09/112,754; 09/112,811;
    small force restoring 09/112,812; 09/112,813;
    the meniscus to a 09/112,814; 09/112,764;
    minimum area. This 09/112,765; 09/112,767;
    force refills the 09/112,768; 09/112,807;
    nozzle. 09/112,806; 09/112,820;
    09/112,821
    Shuttered Ink to the nozzle High speed Requires USSN 09/113,066;
    oscillating chamber is provided Low actuator common ink 09/112,818; 09/112,772;
    ink at a pressure that energy, as the pressure 09/112,815; 09/113,096;
    pressure oscillates at twice the actuator need oscillator 09/113,068; 09/112,808
    drop ejection only open or May not be
    frequency. When a close the suitable for
    drop is to be ejected, shutter, instead pigmented inks
    the shutter is opened of ejecting the
    for 3 half cycles: ink drop
    drop ejection,
    actuator return, and
    refill. The shutter is
    then closed to prevent
    the nozzle chamber
    emptying during the
    next negative
    pressure cycle.
    Refill After the main High speed, as Requires two USSN 09/112,778
    actuator actuator has ejected a the nozzle is independent
    drop a second (refill) actively actuators per
    actuator is energized. refilled nozzle
    The refill actuator
    pushes ink into the
    nozzle chamber. The
    refill actuator returns
    slowly, to prevent its
    return from emptying
    the chamber again.
    Positive The ink is held a High refill rate, Surface spill Silverbrook, EP 0771 658
    ink slight positive therefore a must be A2 and related patent
    pressure pressure. After the high drop prevented applications
    ink drop is ejected, repetition rate Highly Alternative for: USSN
    the nozzle chamber is possible hydrophobic 09/112,751; 09/112,787;
    fills quickly as print head 09/112,802; 09/112,803;
    surface tension and surfaces are 09/113,097; 09/113,099;
    ink pressure both required 09/113,084; 09/112,779;
    operate to refill the 09/113,077; 09/113,061;
    nozzle. 09/112,818; 09/112,816;
    09/112,819; 09/113,095;
    09/112,809; 09/112,780;
    09/113,083; 09/113,121;
    09/113,122; 09/112,793;
    09/112,794; 09/113,128,
    09/113,127; 09/112,756;
    09/112,755; 09/112,754;
    09/112,811; 09/112,812;
    09/112,813; 09/112,814;
    09/112,764; 09/112,765;
    09/112,767; 09/112,768;
    09/112,807; 09/112,806;
    09/112,820; 09/112,821
  • [0064]
    METHOD OF RESTRICTING BACK-FLOW THROUGH INLET
    Description Advantages Disadvantages Examples
    Long inlet The ink inlet Design Restricts refill Thermal ink jet
    channel channel to the simplicity rate Piezoelectric ink jet
    nozzle chamber is Operational May result in a USSN 09/112,807;
    made long and simplicity relatively large 09/112,806
    relatively narrow, Reduces chip area
    relying on viscous crosstalk Only partially
    drag to reduce inlet effective
    back-flow.
    Positive The ink is under a Drop selection Requires a Silverbrook, EP 0771 658
    ink positive pressure, so and separation method (such A2 and related patent
    pressure that in the quiescent forces can be as a nozzle rim applications
    state some of the ink reduced or effective Possible operation of the
    drop already Fast refill time hydrophobizing, following:
    protrudes from the or both) to USSN 09/112,751;
    nozzle. prevent 09/112,787; 09/112,802;
    This reduces the flooding of the 09/112,803; 09/113,097;
    pressure in the ejection 09/113,099; 09/113,084;
    nozzle chamber surface of the 09/112,778; 09/112,779;
    which is required to print head. 09/113,077; 09/113,061;
    eject a certain 09/112,816; 09/112,819;
    volume of ink. The 09/113,095; 09/112,809;
    reduction in 09/112,780; 09/113,083;
    chamber pressure 09/113,121; 09/113,122;
    results in a reduction 09/112,793; 09/112,794;
    in ink pushed out 09/113,128; 09/113,127;
    through the inlet. 09/112,756; 09/112,755;
    09/112,754; 09/112,811;
    09/112,813; 09/112,814;
    09/112,764; 09/112,765;
    09/112,767; 09/112,768;
    Baffle One or more baffles The refill rate is Design HP Thermal Ink Jet
    are placed in the not as restricted complexity Tektronix piezoelectric ink
    inlet ink flow. When as the long inlet May increase jet
    the actuator is method. fabrication
    energized, the rapid Reduces complexity
    ink movement crosstalk (e.g. Tektronix
    creates eddies which hot melt
    restrict the flow Piezoelectric
    through the inlet. print heads).
    The slower refill
    process is
    unrestricted, and
    does not result in
    eddies.
    Flexible In this method Significantly Not applicable Canon
    flap recently disclosed reduces back- to most ink jet
    restricts by Canon, the flow for edge- configurations
    inlet expanding actuator shooter thermal Increased
    (bubble) pushes on a ink jet devices fabrication
    flexible flap that complexity
    restricts the inlet. Inelastic
    deformation of
    polymer flap
    results in creep
    over extended
    use
    Inlet filter A filter is located Additional Restricts refill USSN 09/112,803;
    between the ink inlet advantage of rate 09/113,061; 09/113,083;
    and the nozzle ink filtration May result in 09/112,793; 09/113,128;
    chamber. The filter Ink filter may complex 09/113,127
    has a multitude of be fabricated construction
    small holes or slots, with no
    restricting ink flow. additional
    The filter also process steps
    removes particles
    which may block the
    nozzle.
    Small inlet The ink inlet Design Restricts refill USSN 09/112,787;
    compared channel to the simplicity rate 09/112,814; 09/112,820
    to nozzle nozzle chamber has May result in a
    a substantially relatively large
    smaller cross section chip area
    than that of the Only partially
    nozzle, resulting in effective
    easier ink egress out
    of the nozzle than
    out of the inlet.
    Inlet A secondary Increases speed Requires USSN 09/112,778
    shutter actuator controls the of the ink-jet separate refill
    position of a shutter, print head actuator and
    closing off the ink operation drive circuit
    inlet when the main
    actuator is
    energized.
    The inlet is The method avoids Back-flow Requires USSN 09/112,751;
    located the problem of inlet problem is careful design 09/112,802; 09/113,097;
    behind the back-flow by eliminated to minimize 09/113,099; 09/113,084;
    ink- arranging the ink- the negative 09/112,779; 09/113,077;
    pushing pushing surface of pressure 09/112,816; 09/112,819;
    surface the actuator between behind the 09/112,809; 09/112,780;
    the inlet and the paddle 09/113,121; 09/112,794;
    nozzle. 09/112,756; 09/112,755;
    09/112,754; 09/112,811;
    09/112,812; 09/112,813;
    09/112,765; 09/112,767;
    09/112,768
    Part of the The actuator and a Significant Small increase USSN 09/113,084;
    actuator wall of the ink reductions in in fabrication 09/113,095; 09/113,122;
    moves to chamber are back-flow can complexity 09/112,764
    shut off arranged so that the be achieved
    the inlet motion of the Compact
    actuator closes off designs possible
    the inlet.
    Nozzle In some Ink back-flow None related to Silverbrook, EP 0771 658
    actuator configurations of problem is ink back-flow A2 and related patent
    does not ink jet, there is no eliminated on actuation applications
    result in expansion or Valve-jet
    ink back- movement of an Tone-jet
    flow actuator which may
    cause ink back-flow
    through the inlet.
  • [0065]
    NOZZLE CLEARING METHOD
    Description Advantages Disadvantages Examples
    Normal All of the nozzles No added May not be Most ink jet systems
    nozzle are fired complexity on sufficient to USSN 09/112,751;
    firing periodically, before the print head displace dried 09/112,787; 09/112,802;
    the ink has a chance ink 09/112,803; 09/113,097;
    to dry. When not in 09/113,099; 09/113,084;
    use the nozzles are 09/112,778; 09/112,779;
    sealed (capped) 09/113,077; 09/113,061;
    against air. 09/112,816; 09/112,819;
    The nozzle firing is 09/113,095; 09/112,809;
    usually performed 09/112,780; 09/113,083;
    during a special 09/113,121; 09/113,122;
    clearing cycle, after 09/112,793; 09/112,794;
    first moving the 09/113,128; 09/113,127;
    print head to a 09/112,756; 09/112,755;
    cleaning station. 09/112,754; 09/112,811;
    09/112,813; 09/112,814;
    09/112,764; 09/112,765;
    09/112,767; 09/112,768;
    09/112,807; 09/112,806;
    09/112,820; 09/112,821
    Extra In systems which Can be highly Requires Silverbrook, EP 0771 658
    power to heat the ink, but do effective if the higher drive A2 and related patent
    ink heater not boil it under heater is voltage for applications
    normal situations, adjacent to the clearing
    nozzle clearing can nozzle May require
    be achieved by over- larger drive
    powering the heater transistors
    and boiling ink at
    the nozzle.
    Rapid The actuator is fired Does not Effectiveness May be used with: USSN
    success- in rapid succession. require extra depends 09/112,751; 09/112,787;
    ion of In some drive circuits on substantially 09/112,802; 09/112,803;
    actuator configurations, this the print head upon the 09/113,097; 09/113,099;
    pulses may cause heat Can be readily configuration 09/113,084; 09/112,778;
    build-up at the controlled and of the ink jet 09/112,779; 09/113,077;
    nozzle which boils initiated by nozzle 09/112,816; 09/112,819;
    the ink, clearing the digital logic 09/113,095; 09/112,809;
    nozzle. In other 09/112,780; 09/113,083;
    situations, it may 09/113,121; 09/112,793;
    cause sufficient 09/112,794; 09/113,128;
    vibrations to 09/113,127; 09/112,756;
    dislodge clogged 09/112,755; 09/112,754;
    nozzles. 09/112,811; 09/112,813;
    09/112,814; 09/112,764;
    09/112,765; 09/112,767;
    09/112,768; 09/112,807;
    09/112,806; 09/112,820;
    09/112,821
    Extra Where an actuator is A simple Not suitable May be used with: USSN
    power to not normally driven solution where where there is 09/112,802; 09/112,778;
    ink to the limit of its applicable a hard limit to 09/112,819; 09/113,095;
    pushing motion, nozzle actuator 09/112,780; 09/113,083;
    actuator clearing may be movement 09/113,121; 09/112,793;
    assisted by 09/113,128; 09/113,127;
    providing an 09/112,756; 09/112,755;
    enhanced drive 09/112,765; 09/112,767;
    signal to the 09/112,768; 09/112,807;
    actuator. 09/112,806; 09/112,820;
    09/112,821
    Acoustic An ultrasonic wave A high nozzle High USSN 09/113,066;
    resonance is applied to the ink clearing implementation 09/112,818; 09/112,772;
    chamber. This wave capability can cost if 09/112,815; 09/113,096;
    is of an appropriate be achieved system does 09/113,068; 09/112,808
    amplitude and May be not already
    frequency to cause implemented at include an
    sufficient force at very low cost in acoustic
    the nozzle to clear systems which actuator
    blockages. This is already include
    easiest to achieve if acoustic
    the ultrasonic wave actuators
    is at a resonant
    frequency of the ink
    cavity.
    Nozzle A microfabricated Can clear Accurate Silverbrook, EP 0771 658
    clearing plate is pushed severely mechanical A2 and related patent
    plate against the nozzles. clogged nozzles alignment is applications
    The plate has a post required
    for every nozzle. A Moving parts
    post moves through are required
    each nozzle, There is risk of
    displacing dried ink. damage to the
    nozzles
    Accurate
    fabrication is
    required
    Ink The pressure of the May be Requires May be used with ink jets
    pressure ink is temporarily effective where pressure pump covered by USSN
    pulse increased so that ink other methods or other 09/112,751; 09/112,787;
    streams from all of cannot be used pressure 09/112,802; 09/112,803;
    the nozzles. This actuator 09/113,097; 09/113,099;
    may be used in Expensive 09/113,084; 09/113,066;
    conjunction with Wasteful of 09/112,778; 09/112,779;
    actuator energizing. ink 09/113,077; 09/113,061;
    09/112,818; 09/112,816;
    09/112,772; 09/112,819;
    09/112,815; 09/113,096;
    09/113,068; 09/113,095;
    09/112,808; 09/112,809;
    09/112,780; 09/113,083;
    09/113,121; 09/113,122;
    09/112,793; 09/112,794;
    09/113,128; 09/113,127;
    09/112,756; 09/112,755;
    09/112,754; 09/112,811;
    09/112,812; 09/112,813;
    09/112,814; 09/112,764;
    09/112,765; 09/112,767;
    09/112,768; 09/112,807;
    09/112,806; 09/112,820;
    09/112,821
    Print head A flexible ‘blade’ is Effective for Difficult to use Many ink jet systems
    wiper wiped across the planar print if print head
    print head surface. head surfaces surface is non-
    The blade is usually Low cost planar or very
    fabricated from a fragile
    flexible polymer, Requires
    e.g. rubber or mechanical
    synthetic elastomer. parts
    Blade can wear
    out in high
    volume print
    systems
    Separate A separate heater is Can be effective Fabrication Can be used with many ink
    ink boiling provided at the where other complexity jets covered by USSN
    heater nozzle although the nozzle clearing 09/112,751; 09/112,787;
    normal drop e- methods cannot 09/112,802; 09/112,803;
    ection mechanism be used 09/113,097; 09/113,099;
    does not require it. Can be 09/113,084; 09/113,066;
    The heaters do not implemented at 09/112,778; 09/112,779;
    require individual no additional 09/113,077; 09/113,061;
    drive circuits, as cost in some ink 09/112,818; 09/112,816;
    many nozzles can be jet 09/112,772; 09/112,819;
    cleared configurations 09/112,815; 09/113,096;
    simultaneously, and 09/113,068; 09/113,095;
    no imaging is 09/112,808; 09/112,809;
    required. 09/112,780; 09/113,083;
    09/113,121; 09/113,122;
    09/112,793; 09/112,794;
    09/113,128; 09/113,127;
    09/112,756; 09/112,755;
    09/112,754; 09/112,811;
    09/112,812; 09/112,813;
    09/112,814; 09/112,764;
    09/112,765; 09/112,767;
    09/112,768; 09/112,807;
    09/112,806; 09/112,820;
    09/112,821
  • [0066]
    NOZZLE PLATE CONSTRUCTION
    Description Advantages Disadvantages Examples
    Electro- A nozzle plate is Fabrication High Hewlett Packard Thermal
    formed separately fabricated simplicity temperatures Ink jet
    nickel from electroformed and pressures
    nickel, and bonded are required to
    to the print head bond nozzle
    chip. plate
    Minimum
    thickness
    constraints
    Differential
    thermal
    expansion
    Laser Individual nozzle No masks Each hole must Canon Bubblejet
    ablated or holes are ablated by required be individually 1988 Sercel et al., SPIE,
    drilled an intense UV laser Can be quite formed Vol. 998 Excimer Beam
    polymer in a nozzle plate, fast Special Applications, pp. 76-83
    which is typically a Some control equipment 1993 Watanabe et al.,
    polymer such as over nozzle required USP 5,208,604
    polyimide or profile is Slow where
    polysulphone possible there are many
    Equipment thousands of
    required is nozzles per
    relatively low print head
    cost May produce
    thin burrs at
    exit holes
    Silicon A separate nozzle High accuracy Two part K. Bean, IEEE
    micro- plate is is attainable construction Transactions on Electron
    machined micromachined High cost Devices, Vol. ED-25, No.
    from single crystal Requires 10, 1978, pp 1185-1195
    silicon, and bonded precision Xerox 1990 Hawkins et al.,
    to the print head alignment USP 4,899,181
    wafer. Nozzles may
    be clogged by
    adhesive
    Glass Fine glass No expensive Very small 1970 Zoltan USP
    capillaries capillaries are drawn equipment nozzle sizes 3,683,212
    from glass tubing. required are difficult to
    This method has Simple to make form
    been used for single nozzles Not suited for
    making individual mass
    nozzles, but is production
    difficult to use for
    bulk manufacturing
    of print heads with
    thousands of
    nozzles.
    Monolithic, The nozzle plate is High accuracy Requires Silverbrook, EP 0771 658
    surface deposited as a layer (<1 μm) sacrificial layer A2 and related patent
    micro- using standard VLSI Monolithic under the applications
    machined deposition Low cost nozzle plate to USSN 09/112,751;
    using VLSI techniques. Nozzles Existing form the 09/112,787; 09/112,803;
    litho- are etched in the processes can nozzle 09/113,077; 09/113,061;
    graphic nozzle plate using be used chamber 09/112,815; 09/113,096;
    processes VLSI lithography Surface may 09/113,095; 09/112,809;
    and etching. be fragile to 09/113,083; 09/112,793;
    the touch 09/112,794; 09/113,128;
    09/113,127; 09/112,756;
    09/112,755; 09/112,754;
    09/112,811; 09/112,813;
    09/112,814; 09/112,764;
    09/112,765; 09/112,767;
    09/112,768; 09/112,807;
    09/112,806; 09/112,820
    Monolithic, The nozzle plate is a High accuracy Requires long USSN 09/112,802;
    etched buried etch stop in (<1 μm) etch times 09/113,097; 09/113,099;
    through the wafer. Nozzle Monolithic Requires a 09/113,084; 09/113,066;
    substrate chambers are etched Low cost support wafer 09/112,778; 09/112,779;
    in the front of the No differential 09/112,818; 09/112,816;
    wafer, and the wafer expansion 09/112,772; 09/112,819;
    is thinned from the 09/113,068; 09/112,808;
    back side. Nozzles 09/112,780; 09/113,121;
    are then etched in 09/113,122
    the etch stop layer.
    No nozzle Various methods No nozzles to Difficult to Ricoh 1995 Sekiya et al
    plate have been tried to become clogged control drop USP 5,412,413
    eliminate the position 1993 Hadimioglu et al EUP
    nozzles entirely, to accurately 550,192
    prevent nozzle Crosstalk 1993 Elrod et al EUP
    clogging. These problems 572,220
    include thermal
    bubble mechanisms
    and acoustic lens
    mechanisms
    Trough Each drop ejector Reduced Drop firing USSN 09/112,812
    has a trough through manufacturing direction is
    which a paddle complexity sensitive to
    moves. There is no Monolithic wicking.
    nozzle plate.
    Nozzle slit The elimination of No nozzles to Difficult to 1989 Saito et al
    instead of nozzle holes and become clogged control drop USP 4,799,068
    individual replacement by a slit position
    nozzles encompassing many accurately
    actuator positions Crosstalk
    reduces nozzle problems
    clogging, but
    increases crosstalk
    due to ink surface
    waves
  • [0067]
    DROP EJECTION DIRECTION
    Description Advantages Disadvantages Examples
    Edge Ink flow is along the Simple Nozzles Canon Bubblejet 1979
    (‘edge surface of the chip, construction limited to edge Endo et al GB patent
    shooter’) and ink drops are No silicon High 2,007,162
    ejected from the etching required resolution is Xerox heater-in-pit 1990
    chip edge. Good heat difficult Hawkins et al USP
    sinking via Fast color 4,899,181
    substrate printing Tone-jet
    Mechanically requires one
    strong print head per
    Ease of chip color
    handing
    Surface Ink flow is along the No bulk silicon Maximum ink Hewlett-Packard TIJ 1982
    (‘roof surface of the chip, etching required flow is Vaught et al USP
    shooter’) and ink drops are Silicon can severely 4,490,728
    ejected from the make an restricted USSN 09/112,787,
    chip surface, normal effective heat 09/113,077; 09/113,061;
    to the plane of the sink 09/113,095; 09/112,809
    chip. Mechanical
    strength
    Through Ink flow is through High ink flow Requires bulk Silverbrook, EP 0771 658
    chip, the chip, and ink Suitable for silicon etching A2 and related patent
    forward drops are ejected pagewidth print applications
    (‘up from the front heads USSN 09/112,803;
    shooter’) surface of the chip. High nozzle 09/112,815; 09/113,096;
    packing density 09/113,083; 09/112,793;
    therefore low 09/112,794; 09/113,128;
    manufacturing 09/113,127; 09/112,756;
    cost 09/112,755; 09/112,754;
    09/112,811; 09/112,812;
    09/112,813; 09/112,814;
    09/112,764; 09/112,765;
    09/112,767; 09/112,768;
    09/112,807; 09/112,806;
    09/112,820; 09/112,821
    Through Ink flow is through High ink flow Requires wafer USSN 09/112,751;
    chip, the chip, and ink Suitable for thinning 09/112,802; 09/113,097;
    reverse drops are ejected pagewidth print Requires 09/113,099; 09/113,084;
    (‘down from the rear surface heads special 09/113,066; 09/112,778;
    shooter’) of the chip. High nozzle handling 09/112,779; 09/112,818;
    packing density during 09/112,816; 09/112,772;
    therefore low manufacture 09/112,819;
    manufacturing 09/113,068; 09/112,808;
    cost 09/112,780; 09/113,121;
    09/113,122
    Through Ink flow is through Suitable for Pagewidth Epson Stylus
    actuator the actuator, which piezoelectric print heads Tektronix hot melt
    is not fabricated as print heads require several piezoelectric ink jets
    part of the same thousand
    substrate as the connections to
    drive transistors. drive circuits
    Cannot be
    manufactured
    in standard
    CMOS fabs
    Complex
    assembly
    required
  • [0068]
    INK TYPE
    Description Advantages Disadvantages Examples
    Aqueous, Water based ink Environmental- Slow drying Most existing ink jets
    dye which typically ly friendly Corrosive USSN 09/112,751;
    contains: water, dye, No odor Bleeds on 09/112,787; 09/112,802;
    surfactant, paper 09/112,803; 09/113,097;
    humectant, and May 09/113,099; 09/113,084;
    biocide. strikethrough 09/113,066; 09/112,778;
    Modern ink dyes Cockles paper 09/112,779; 09/113,077;
    have high water- 09/113,061; 09/112,818;
    fastness, light 09/112,816; 09/112,772;
    fastness 09/112,819; 09/112,815;
    09/113,096; 09/113,068;
    09/113,095; 09/112,808;
    09/112,809; 09/112,780;
    09/113,083; 09/113,121;
    09/113,122; 09/112,793;
    09/112,794; 09/113,128;
    09/113,127; 09/112,756;
    09/112,755; 09/112,754;
    09/112,811; 09/112,812;
    09/112,813; 09/112,814;
    09/112,764; 09/112,765;
    09/112,767; 09/112,768;
    09/112,807; 09/112,806;
    09/112,820; 09/112,821
    Silverbrook, EP 0771 658
    A2 and related patent
    applications
    Aqueous, Water based ink Environmental- Slow drying USSN 09/112,787;
    pigment which typically ly friendly Corrosive 09/112,803; 09/112,808;
    contains: water, No odor Pigment may 09/113,122; 09/112,793;
    pigment, surfactant, Reduced bleed clog nozzles 09/113,127
    humectant, and Reduced Pigment may Silverbrook, EP 0771 658
    biocide. wicking clog actuator A2 and related patent
    Pigments have an Reduced mechanisms applications
    advantage in reduced strikethrough Cockles paper Piezoelectric ink-jets
    bleed, wicking and Thermal ink jets (with
    strikethrough. significant restrictions)
    Methyl MEK is a highly Very fast Odorous USSN 09/112,751;
    Ethyl volatile solvent used drying Flammable 09/112,787; 09/112,802;
    Ketone for industrial printing Prints on 09/112,803; 09/113,097;
    (MEK) on difficult surfaces various 09/113,099; 09/113,084;
    such as aluminum substrates such 09/113,066; 09/112,778;
    cans. as metals and 09/112,779; 09/113,077;
    plastics 09/113,061; 09/112,818;
    09/112,816; 09/112,772;
    09/112,819; 09/112,815;
    09/113,096; 09/113,068;
    09/113,095; 09/112,808;
    09/112,809; 09/112,780;
    09/113,083; 09/113,121;
    09/113,122; 09/112,793;
    09/112,794; 09/113,128;
    09/113,127; 09/112,756;
    09/112,755; 09/112,754;
    09/112,811; 09/112,812;
    09/112,813; 09/112,814;
    09/112,764; 09/112,765;
    09/112,767; 09/112,768;
    09/112,807; 09/112,806;
    09/112,820; 09/112,821
    Alcohol Alcohol based inks Fast drying Slight odor USSN 09/112,751;
    (ethanol, can be used where Operates at Flammable 09/112,787; 09/112,802;
    2-butanol, the printer must sub-freezing 09/112,803; 09/113,097;
    and operate at temperatures 09/113,099; 09/113,084;
    others) temperatures below Reduced paper 09/113,066; 09/112,778;
    the freezing point of cockle 09/112,779; 09/113,077;
    water. An example of Low cost 09/113,061; 09/112,818;
    this is in-camera 09/112,816; 09/112,772;
    consumer 09/112,819; 09/112,815;
    photographic 09/113,096; 09/113,068;
    printing. 09/113,095; 09/112,808;
    09/112,809; 09/112,780;
    09/113,083; 09/113,121;
    09/113,122; 09/112,793;
    09/112,794; 09/113,128;
    09/113,127; 09/112,756;
    09/112,755; 09/112,754;
    09/112,811; 09/112,812;
    09/112,813; 09/112,814;
    09/112,764; 09/112,765;
    09/112,767; 09/112,768;
    09/112,807; 09/112,806;
    09/112,820; 09/112,821
    Phase The ink is solid at No drying High viscosity Tektronix hot melt
    change room temperature, time-ink Printed ink piezoelectric ink jets
    (hot melt) and is melted in the instantly typically has a 1989 Nowak USP
    print head before freezes on the ‘waxy’ feel 4,820,346
    jetting. Hot melt inks print medium Printed pages USSN 09/112,751;
    are usually wax Almost any may ‘block’ 09/112,787; 09/112,802;
    based, with a melting print medium Ink 09/112,803; 09/113,097;
    point around 80° C. can be used temperature 09/113,099; 09/113,084;
    After jetting the ink No paper may be above 09/113,066; 09/112,778;
    freezes almost cockle occurs the curie point 09/112,779; 09/113,077;
    instantly upon No wicking of permanent 09/113,061; 09/112,818;
    contacting the print occurs magnets 09/112,816; 09/112,772;
    medium or a transfer No bleed Ink heaters 09/112,819; 09/112,815;
    roller. occurs consume 09/113,096; 09/113,068;
    No power 09/113,095; 09/112,808;
    strikethrough Long warm-up 09/112,809; 09/112,780;
    occurs time 09/113,083; 09/113,121;
    09/113,122; 09/112,793;
    09/112,794; 09/113,128;
    09/113,127; 09/112,756;
    09/112,755; 09/112,754;
    09/112,811; 09/112,812;
    09/112,813; 09/112,814;
    09/112,764; 09/112,765;
    09/112,767; 09/112,768;
    09/112,807; 09/112,806;
    09/112,820; 09/112,821
    Oil Oil based inks are High solubility High viscosity: USSN 09/112,751;
    extensively used in medium for this is a 09/112,787; 09/112,802;
    offset printing. They some dyes significant 09/112,803; 09/113,097;
    have advantages in Does not limitation for 09/113,099; 09/113,084;
    improved cockle paper use in ink jets, 09/113,066; 09/112,778;
    characteristics on Does not wick which usually 09/112,779; 09/113,077;
    paper (especially no through paper require a low 09/113,061; 09/112,818;
    wicking or cockle). viscosity. 09/112,816; 09/112,772;
    Oil soluble dies and Some short 09/112,819; 09/112,815;
    pigments are chain and 09/113,096; 09/113,068;
    required. multi-branched 09/113,095; 09/112,808;
    oils have a 09/112,809; 09/112,780;
    sufficiently 09/113,083; 09/113,121;
    low viscosity. 09/113,122; 09/112,793;
    Slow drying 09/112,794; 09/113,128;
    09/113,127; 09/112,756;
    09/112,755; 09/112,754;
    09/112,811; 09/112,812;
    09/112,813; 09/112,814;
    09/112,764; 09/112,765;
    09/112,767; 09/112,768;
    09/112,807; 09/112,806;
    09/112,820; 09/112,821
    Micro- A microemulsion is a Stops ink bleed Viscosity USSN 09/112,751;
    emulsion stable, self forming High dye higher than 09/112,787; 09/112,802;
    emulsion of oil, solubility water 09/112,803; 09/113,097;
    water, and surfactant. Water, oil, and Cost is slightly 09/113,099; 09/113,084;
    The characteristic amphiphilic higher than 09/113,066; 09/112,778;
    drop size is less than soluble dies water based 09/112,779; 09/113,077;
    100 nm, and is can be used ink 09/113,061; 09/112,818;
    determined by the Can stabilize High surfactant 09/112,816; 09/112,772;
    preferred curvature of pigment concentration 09/112,819; 09/112,815;
    the surfactant. suspensions required 09/113,096; 09/113,068;
    (around 5%) 09/113,095; 09/112,808;
    09/112,809; 09/112,780;
    09/113,083; 09/113,121;
    09/113,122; 09/112,793;
    09/112,794; 09/113,128;
    09/113,127; 09/112,756;
    09/112,755; 09/112,754;
    09/112,811; 09/112,812;
    09/112,813; 09/112,814;
    09/112,764; 09/112,765;
    09/112,767; 09/112,768;
    09/112,807; 09/112,806;
    09/112,820; 09/112,821

Claims (6)

    We claim:
  1. 1. A garment creation system comprising:
    a pattern generating means for generating at least one garment piece outline and a decorative finish to be imparted to said garment piece; and
    a garment fabric printer in communication with said pattern generating means for printing simultaneously said garment piece outline and said decorative finish on to a surface of a bolt of fabric passing through said printer, in use.
  2. 2. A garment creation system as claimed in claim 1 wherein said garment fabric printer prints simultaneously on the surface of the bolt of fabric, a plurality of garment piece outlines, each with their associated decorative finishes.
  3. 3. A garment creation system as claimed in claim 2 wherein said garment fabric printer prints out on the surface of said bolt of fabric instructions for joining said garment pieces together.
  4. 4. A garment creation system as claimed in claim 2 wherein said pattern generating means generates the decorative finishes on each of said pieces so that an image, created by fastening said pieces together to form a garment, appears to be continuous.
  5. 5. A garment creation system as claimed in claim 1 wherein the garment fabric printer is an ink jet printer having an image printing width corresponding to a width of the bolt of fabric.
  6. 6. A garment creation system as claimed in claim 1 wherein the pattern generating means generates garment pieces of different sizes to cater for different sizes and shapes of bodies.
US10326308 1997-07-15 2002-12-23 Custom garment design and fabric printing system Abandoned US20030101559A1 (en)

Priority Applications (4)

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AUPO8027 1997-07-15
AUPO802797 1997-07-15
US11275998 true 1998-07-10 1998-07-10
US10326308 US20030101559A1 (en) 1997-07-15 2002-12-23 Custom garment design and fabric printing system

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US10326308 US20030101559A1 (en) 1997-07-15 2002-12-23 Custom garment design and fabric printing system
US11525862 US7525687B2 (en) 1997-07-15 2006-09-25 Garment creation system
US12422892 US7965416B2 (en) 1997-07-15 2009-04-13 Method for creating a garment
US13108986 US8102568B2 (en) 1997-07-15 2011-05-17 System for creating garments using camera and encoded card

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US11275998 Continuation 1998-07-10 1998-07-10

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US11525862 Active 2018-11-16 US7525687B2 (en) 1997-07-15 2006-09-25 Garment creation system
US12422892 Active 2018-11-04 US7965416B2 (en) 1997-07-15 2009-04-13 Method for creating a garment
US13108986 Expired - Lifetime US8102568B2 (en) 1997-07-15 2011-05-17 System for creating garments using camera and encoded card

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US13108986 Expired - Lifetime US8102568B2 (en) 1997-07-15 2011-05-17 System for creating garments using camera and encoded card

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US7965416B2 (en) 2011-06-21 grant

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