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2C057 Particle formation and scattering control in inkjet printers
B41J2/015 -2/16,517;2/205
B41J2/015-2/16,517;2/205 AF AF00
PURPOSE 		AF01 AF02 AF03 AF04 AF05 AF06 AF07 AF08 AF09 AF10
. High-speed printing . . shortening jetting time . . . increasing the change amount of energy elements . . . reducing ink resistance . . shortening the time other than jetting time . . . improving ink refills . . . preventing unwanted vibrations in energy elements . . . cancelling residual vibrations . . . preventing head vibrations . . . suppressing pressure wave generation
AF11
. . Dot thinning printing
AF21 AF22 AF23 AF24 AF25 AF26 AF27 AF28 AF29 AF30
. High-quality printing . . uniformising dot diameters . . . making discharge amount constant . . . compensating differences between discharge ports . . . preventing density irregularities . . . compensating differences in printing media . . . reducing ink smears . . . preventing satellite generation . . Landing position . . . preventing positional deviation of dots
AF31 AF32 AF33 AF34 AF35 AF36 AF37 AF38 AF39 AF40
. . . preventing stripes between lines . . . Bidirectional uniform printing . . increasing printing pattern density . . . reducing head volume . . . . increasing electrode wiring density . . . . increasing electrode density . . . . High-density packaging of energy elements . . . . rationalising head arrangement . . Halftone recording . . preventing mutual interference between nozzles
AF41 AF42 AF43 AF44
. . stabilising meniscus position . . stabilising speed . . stabilising direction . . . preventing ink dripping
AF51 AF52 AF53 AF54 AF55
. improving efficiency of jetting energy . . improving energy conductivity . . . improving heat conductivity . . reducing input energy . . driving with a low voltage
AF61 AF62 AF63 AF64 AF65 AF66 AF67 AF68 AF69 AF70
. facilitating maintenance . . facilitating removal and replacement of heads . . . improving head fixability . . . storing data intrinsic to heads . . improving head durability . . . protecting electrode . . . . preventing leakage current . . . reinforcing head . . . . improving fixability of elements and substrates . . . preventing corrosion with ink
AF71 AF72 AF73 AF74 AF75 AF76 AF77 AF78 AF79 AF80
. stabilising discharge . . preventing clogging . . . preheating . . . preventing ink drying . . . Preliminary discharge . . Abnormal air bubbles . . . preventing generation of air bubble . . . preventing stagnation of air bubble . . . preventing intrusion of air bubble . . . removing air bubbles
AF81 AF82 AF83 AF84
. . preventing erroneous discharge . . preventing noise signals . . preventing voltage drops at the time of simultaneous discharges . . preventing ink degradation
AF91 AF93 AF99
. making printable in colour . improving manufacturing processes . Others*
AG AG00
COMMON STRUCTURE OF HEADS 		AG01 AG02 AG03 AG04 AG05 AG06 AG07 AG08 AG09 AG10
. Nozzle structures . . with a limited nozzle taper angle . . with ink drop discharge direction having angles other than the straight direction . . with recesses and projections on the nozzle forming end face of head . . with nozzle shapes other than cylindrical shape . . with a changeable nozzle or a replaceable nozzle only . . Nozzles with the surface treated . . with a nozzle formed of a member integrated with flow path . . . with a narrow flow path tip . . . with an invariable width of flow path tip
AG11 AG12 AG13 AG14 AG15 AG16 AG17 AG18
. Nozzle arrangements . . Multiple orifices . . . Arrangement of nozzles with different diameters . . . Arrangement in a plurality of lines . . . . Nozzles in staggered arrangements . . . with limited nozzle arrangement pitches . . Single orifice or single nozzle . . with many holes arranged in one nozzle
AG21 AG22 AG24 AG25 AG26 AG29 AG30
. Head without nozzle . . in the slit shape . Nozzle accessory part . . with a slit member or a cover member in front of nozzle . . with a nozzle cap or a lid . Flow path structures . . with a liquid resistance element
AG31 AG32 AG33 AG34 AG37 AG38 AG39 AG40
. . with a limited flow path size . . . with a width height and length of the flow path having numerical limitations . . . Three-dimensionally structured flow path or a flow path bending at a right angle . . Flow path with changeable length . Structure of elements generating energy e.g. pressure or heat . . pressure generators in other shapes than quadrilateral . . Sizes of pressure generating elements with numerical limitation e.g. length width or height . . with limited arrangement of pressure generating elements
AG41 AG42 AG43 AG44 AG45 AG46 AG47 AG48 AG49 AG50
. . with worked surface of pressure generating elements . . with integrally formed electrodes . . with limited materials of drive elements . . . Piezoelectric elements . . . . Shear mode type . . . Heating elements . . Laminated piezoelectric elements . . . Laminated piezoelectric elements with the same properties . . . Laminated piezoelectric elements with different properties . . Laminated heating elements
AG51 AG52 AG53 AG54 AG55 AG56 AG57 AG58 AG59 AG60
. Structure of members transmitting energy e.g. pressure or heat . . specifying the shapes of diaphragms . . . forming recesses and projections on the surfaces of diaphragms . . . attracting diaphragms electrostatically . . specifying diaphragm forming materials . . with members which transmit pressure to diaphragms . . . of elastic bodies . . utilising pressure transmission by fluids . . increasing drive deformation . . preventing over-deformation of pressure generating elements
AG61 AG62 AG65 AG68 AG69 AG70
. . Heat transmitting members . . Acoustic lenses . Heat insulating members . Structure of ink supply chamber and common liquid chamber . . with integrated head and tank . . . of cartridge type
AG71 AG72 AG73 AG74 AG75 AG76 AG77 AG78 AG80
. . Ink supply tube from ink supply chamber to tank . . Numerical limitation of the dimension of ink supply chamber . . with atmosphere communicating holes . . Variable ink pressure . . with pressure wave absorbing means . . with valves or shutters . . with filters . . with traps . Ink tanks
AG81 AG82 AG83 AG84 AG85 AG86 AG87 AG88 AG89 AG90
. Substrates . . characterised by the structure of a substrate itself e.g. a semiconductor substrate . . . building circuits in substrates by semiconductor processes . . Electrical connections on head substrates . . . by wire bonding . . . by crimp-type terminals . . . by press contact by springs or the like . . . by semiconductor processes . . . by conductive adhesives . . . Structure of electrode pads
AG91 AG92 AG93 AG94 AG96 AG97 AG98 AG99
. . Wiring structure on head substrates . . . with specified arrangement of common electrodes . . . with specified arrangement of individual electrodes . . . Laminated wiring structure . with specified outer shape of the entire head . . Circular or spherical heads . Heads with unwanted constitutions* . Others*
AH AH00
INKS 		AH01 AH03 AH05 AH07 AH09
. discharging coating materials . using foamed fluid to generate pressure for non-discharge . using conductive inks . using solid dyes in liquids e.g. toners . using electroviscous fluids
AH11 AH13 AH15 AH20
. using solvents without dyes . using inks with different density . Hot-melt inks . Others*
AJ AJ00
RECORDED OBJECT ARTICLES EXCLUDING PAPERS 		AJ01 AJ02 AJ03 AJ04 AJ05 AJ10
. Materials . . OHP sheets . . Cloths . . Metals . . Printed circuit boards . Others*
AK AK00
DEVICES TO BE LOADED ON HEADS 		AK01 AK02 AK05 AK07 AK08 AK09 AK10
. with ink heaters e.g. for non-discharge loaded on heads . with memories loaded on heads . with CPUs loaded on heads . with control circuits loaded on heads . . for numerically processing printing data . . . indicating circuit constitution . . . . Digital circuits
AK11 AK13 AK15 AK20
. with sound absorbing structures provided on heads . combined with other heads of printing systems than ink-jet . Heads with the counters loaded . Others*
AL AL00
DETECTIONS 		AL01 AL02 AL03 AL04 AL05 AL06
. Timing of detection . . at the time of turning on or off . . during printing operation . . during printing standby . . periodically . . irregularly
AL11 AL12 AL13 AL14 AL15 AL16 AL17 AL18 AL19
. Detection objects . . Types of heads . . Current or voltage of heads . . Inks . . . Ink supply pressure . . . Ink viscosity . . . Run-out of inks in heads . . . Air bubbles . . . Ink droplet scattering speed
AL21 AL22 AL23 AL24 AL25 AL26 AL27 AL28 AL29 AL30
. . Printing media . . . Distance to printing media . . . Positions of heads and printing media . . Temperatures . . . Head temperatures . . . Ambient temperatures . . . Temperature change rates . . . for estimating temperatures . . . . for estimating parameters . . Humidity
AL31 AL32 AL33 AL34 AL35 AL36 AL37 AL38 AL40
. . Printing data . . . Dot data . . . Blank data . . . Future printing data . . Printed results . . . Test pattern printed results . . . Ink concentration . . . Ink diameter . Others*
AM AM00
CONTROL 		AM01 AM02 AM03 AM04 AM05 AM06
. Timing of control . . at the time of turning on or off . . during printing operation . . during printing standby . . periodically . . irregularly
AM11 AM12 AM13 AM14 AM15 AM16 AM17 AM18 AM19
. Controlled objects . . Width of impression . . Dot pitches . . Ink concentration . . Amount of discharged ink . . Current or voltage of heads . . . Jetting timing . . . . per nozzle . . . . per block
AM21 AM22 AM24 AM25 AM26 AM28 AM29 AM30
. . . Pulse width . . . Pulse height . . Current of dedicated heater elements . . Position of a head relative to a medium to be printed . . . Amount of carriage travel distance . . Processing of input image data prior to output . . Discharge recovery . . limiting printing operation
AM31 AM32 AM33 AM40
. . Control for ink discharge defect prevention and recovery . . . periodically . . . irregularly . Others*
AN AN00
SCANNING METHODS 		AN01 AN02 AN04 AN05 AN06 AN07 AN10
. serial . . bidirectional printing . Shuttle . Line . Rotary drums . X-Y direction printing . Others*
AP AP00
MANUFACTURE OF HEADS 		AP01 AP02 AP03
. Types of heads to be manufactured . . Laminated type . . Non-laminated type
AP11 AP12 AP13 AP14 AP15 AP16 AP17
. Types of components to be manufactured . . Nozzles . . Orifice plates . . Drive elements . . . Laminated piezoelectric elements with different properties or of different kinds . . . Laminated piezoelectric elements with the same properties or of the same kind . . . Over-deformation preventing members
AP21 AP22 AP23 AP24 AP25 AP26 AP27 AP28 AP29
. Working methods* . . Working method by mechanical working e.g. machining and cutting* . . . Laser working* . . Working method by bonding and adhesion* . . . Bonding or adhesion with adhesives* . . . without adhesives* . . . Thermal adhesion* . . . Electrostatic bonding* . . . Optical bonding*
AP31 AP32 AP33 AP34 AP35 AP37 AP38
. . using etching* . . . Dry etching* . . . Wet etching* . . . . Anisotropic etching* . . . Other types of etching* . . dissolving or removing mould materials* . . using electroforming*
AP41 AP42 AP43 AP45 AP46 AP47 AP49
. . with cleaning process* . . . Cleaning before working* . . . Cleaning after working* . . using a resin moulding method* . . . using injection moulds* . . . using a photosensitive resin moulding* . . Glass heat forming*
AP51 AP52 AP53 AP54 AP55 AP56 AP57 AP58 AP59 AP60
. . Thin film forming means* . . . Sputtering* . . . CVD* . . . Vapour deposition* . . . Plating* . . . Oxide layer formation e.g. by anodes or heat* . . . Coating* . . . Other thin films* . . . Hydrophilic or lipophilic treatment* . . . Water-repellent or oil-repellent treatment*
AP61
. . Surface treatments*
AP71 AP72 AP73 AP75 AP77 AP79
. Assembling methods* . . Attachment of orifices or nozzles* . . . attaching nozzle arrangement obliquely to scanning direction* . . Attachment structure of drive elements . Aligning structure . Reinforcing structure
AP81 AP82 AP83 AP84 AP85 AP90
. Head adjustment or inspection . . at the time of production . . at the time of use . . . periodically . . . at the time of an abnormality . Others*
AQ AQ00
MATERIALS OF ORIFICES OR SUBSTRATES 		AQ01 AQ02 AQ03 AQ04 AQ06 AQ07 AQ08 AQ10
. Glasses* . Silicones* . Synthetic resins* . . being photosensitive* . Metals* . Gems* . Porous or fibres* . Others*
AR AR00
DRIVE OR CONTROL DEVICES OR CIRCUITS FOR PARTICLE FORMING APPARATUS 		AR01 AR03 AR04 AR05 AR06 AR07 AR08 AR09
. Power source circuits using batteries and boosting transformers . Selective drive circuits for drive elements . . Selective drive circuit of which the drive voltage or current is variable . . Matrix circuits . . Bias drive . . Initial drive . . characterised by drive waveforms . . Drive or control against abnormality
AR11 AR12 AR14 AR16 AR17 AR18 AR20
. Drive selection control signals . . Drive selection control signal using light lasers or electromagnetic waves . characterised by wiring or connection of signal lines . Drive methods or circuits for generating pressure . . for forming air bubbles . . using multiple drive element method for one nozzle . Others*
BA BA00
PRESSURE TYPE HEADS 		BA01 BA02 BA03 BA04 BA05 BA06 BA07 BA08 BA09 BA10
. Head types . . Cylinder compression type . . Pressure chamber type . . . with drive elements arranged facing nozzles . . . with drive elements disposed on a nozzle hole side . . . Vibration beam type . . Piston type . . Needle type . . Two-chamber type . . Others including a combination type*
BA11 BA12 BA13 BA14 BA15
. Pressure generation methods . . generating pressure by forming air bubbles . . . generating air bubbles by using heating resistors . . generating pressure by using electrostrictive elements . . Others combined with other forces than pressure*
BB BB00
AIR FLOW TYPE HEADS 		BB01 BB02 BB04
. Air flow in electrostatic force type . . Electrode structure of ink or air discharge holes . Ink or air pressure supply control means
BC BC00
PRESSURE VIBRATION TYPE HEADS 		BC01 BC02 BC03 BC04 BC05 BC07 BC08 BC09
. Droplet separation methods . . applying pressure vibrations to liquid inside the nozzle . . . generating multiple droplet strings from one liquid chamber . . vibrating nozzles in the axial direction . . applying pulsation action to liquid columns outside the nozzles . Excitation methods or circuits . Head excitation structures . . designed for resonance
BD BD00
ELECTROSTATIC ATTRACTION AND MAGNETIC ATTRACTION TYPE HEADS 		BD01 BD02 BD03 BD04 BD05 BD06 BD07 BD09 BD10
. Meniscus forming or selective scattering methods . . by magnetic fields . . . with a raising magnet of magnetic fluids . . . . with supply magnet . . by electric fields excluding electroendosmosis . . . by electric field by using needle electrodes . . . by using planar electrodes . . by electroendosmosis . . Others
BD11 BD12 BD14 BD15 BD17 BD18
. Droplet scattering selective control methods or the circuits thereof . . using accelerating electrodes . Structure of counter or back plate electrodes or magnets . . Division type . Ink supply systems . . Supply to drums or sheet-like ink carriers
BE BE00
POROUS SHEET TYPE HEADS 		BE01 BE02 BE04 BE05 BE06 BE07 BE09
. discharging ink by heat . discharging ink by electric fields . Structure of porous sheet . . of multilayer structures . . being mesh or fibrous . . Materials of porous sheets . Feed or control of porous sheets
BF BF00
OTHER HEADS 		BF01 BF02 BF03 BF04 BF06
. Particle forming apparatus utilising centrifugal force or rotary force . utilising inertia force . Adhesion type . Valve opening and closing type or spray type . Others*
CA CA00
HALFTONE RECORDING 		CA01 CA02 CA04 CA05 CA07 CA08 CA09 CA10
. using ink droplets of different sizes . . using nozzles of different diameters . changing the number of droplets to be adhered to the same point . by dot matrix pattern . using ink droplets of different density . changing ink density by solvents . changing scanning density or recording density . Others
DA DA00
PURPOSES OF SCATTERING CONTROL 		DA01 DA02 DA03 DA05 DA06 DA07 DA08 DA09 DA10
. forming character patterns . . enlarging or reducing character patterns . . Characters laterally turned or vertically described reversed or outlined . Halftone recording . Colour recording . Inclination correction . Distortion correction . Alignment or joint processing of dot lines . Others
DB DB00
TYPES OR USING FORMS OF INK-JET RECORDERS 		DB01 DB02 DB03 DB04 DB05 DB06 DB07 DB08 DB09 DB10
. using heads of on-demand type . using continuous type heads . Serial type printing methods . Line type printing methods . Oblique nozzle arrangement type printing methods . Drum type printing methods . X-Y type printing methods . Nozzle rotation type printing methods . Moving article type . Others
DC DC00
SCATTERING CONTROL METHODS 		DC01 DC02 DC03 DC04 DC05 DC06 DC07 DC08 DC09 DC10
. by nozzles . . Timing of controlling discharge . . Deflection control . . . Nozzle fine vibration type . . . Liquid column scanning type . . . Head selective drive type . Control method for scattered droplets . . Selective control for printing and non-printing droplets . Deflection control . . Multi-value or multi-stage deflection
DC11 DC14 DC15 DC16 DC17 DC18 DC19
. . . having deflection direction in two orthogonally crossing directions . Scattering control energy or force . . Electrostatic force . . Magnetic force . . Air flow . . Light . . Others
DD DD00
DETECTION MEANS 		DD01 DD02 DD03 DD04 DD05 DD06 DD07 DD08 DD09 DD10
. Detected objects . . Detection of the presence of jetting or jetting amount . . Detection of jetting direction or jetting speed . . Detection of the presence of charges or charge amount . . Detection of deflection position or deflection amount . . Detection of head or ink temperature . . Detection of ink pressure . . Detection of head position or movement . . Detection of others . Optical detection means
DE DE00
AUTOMATIC CONTROL MEANS 		DE01 DE02 DE03 DE04 DE05 DE06 DE07 DE08 DE10
. Controlled or operated objects . . Drive voltage or current of heads . . Charge voltage . . Deflection voltage . . Temperature . . Ink pressure or ink pump drive . . Timing of driving heads . . Jetting amount or speed . . Others
EA EA00
DEFLECTION CONTROL DEVICES USING CHARGED DROPLETS 		EA01 EA02 EA03 EA04 EA05 EA06 EA08 EA09
. Charge amount control type . . Microdot type . . changing charge polarity . . charging dummy droplets . . characterised by deflection scanning order . . Others . Electric field control type . combined with air flow
EB EB00
PHASE RETRIEVING MEANS 		EB01 EB02 EB03 EB04 EB05 EB07 EB08 EB09
. Charge detection method . . using gutter droplets . . using deflection droplets . . using charge electrodes . Optical detection method . Phase shift means . . shifting charging phase . . shifting nozzle excitation phase
EC EC00
ELECTRODES OR POWER SOURCES FOR SCATTERING CONTROL 		EC01 EC03 EC04 EC05 EC06 EC08 EC10
. Electrodes in general . . Charge electrodes . . Deflection electrodes . . . in rod shape . . Detection electrodes . Ink contamination preventing or short-circuit preventing means . Others e.g. power sources
ED ED00
DISTORTION CORRECTION 		ED01 ED02 ED04 ED05 ED06 ED07 ED08 ED09
. correcting charge amount . . by preceding or succeeding droplet pattern . by correction of factors other than charge amount . . by insertion of dummy droplets . . by deflection scanning order . . by air flow . . by speed control . . Others
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