Industry
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CPC
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B41J2/00
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B41J2/005characterised by bringing liquid or particles selectively into contact with a printing material
B41J2/0057where an intermediate transfer member receives the ink before transferring it on the printing material
B41J2/01Ink jet
B41J2/015characterised by the jet generation process
B41J2/02generating a continuous ink jet
B41J2/025by vibration
B41J2/03by pressure
B41J2/035by electric or magnetic field
B41J2/04generating single droplets or particles on demand
B41J2/045by pressure
B41J2/04501Control methods or devices therefor
B41J2/04503aiming at compensating carriage speed
B41J2/04505aiming at correcting alignment
B41J2/04506aiming at correcting manufacturing tolerances
B41J2/04508aiming at correcting other parameters
B41J2/0451for detecting failure
B41J2/04511for electrostatic discharge protection
B41J2/04513for increasing lifetime
B41J2/04515preventing overheating
B41J2/04516preventing formation of satellite drops
B41J2/04518reducing costs
B41J2/0452reducing demand in current or voltage
B41J2/04521reducing number of signal lines needed
B41J2/04523reducing size of the apparatus
B41J2/04525reducing occurrence of cross talk
B41J2/04526controlling trajectory
B41J2/04528aiming at warming up the head
B41J2/0453controlling a head having a dummy chamber
B41J2/04531controlling a head having a heater in the manifold
B41J2/04533controlling a head having several actuators per chamber
B41J2/04535involving calculation of drop size, weight or volume
B41J2/04536using history data
B41J2/04538involving calculation of heater resistance
B41J2/0454involving calculation of temperature
B41J2/04541Specific driving circuit
B41J2/04543Block driving
B41J2/04545Dynamic block driving
B41J2/04546Multiplexing
B41J2/04548Details of power line section of control circuit
B41J2/0455Details of switching sections of circuit
B41J2/04551using several operating modes
B41J2/04553detecting ambient temperature
B41J2/04555detecting current
B41J2/04556detecting distance to paper
B41J2/04558detecting presence or properties of a dot on paper
B41J2/0456detecting drop size, volume or weight
B41J2/04561detecting presence or properties of a drop in flight
B41J2/04563detecting head temperature; Ink temperature
B41J2/04565detecting heater resistance
B41J2/04566detecting humidity
B41J2/04568Control according to number of actuators used simultaneously
B41J2/0457Power supply level being detected or varied
B41J2/04571detecting viscosity
B41J2/04573Timing; Delays
B41J2/04575controlling heads of acoustic type
B41J2/04576controlling heads of electrostatic type
B41J2/04578controlling heads based on electrostatically-actuated membranes
B41J2/0458controlling heads based on heating elements forming bubbles
B41J2/04581controlling heads based on piezoelectric elements
B41J2/04583controlling heads based on discharge by lowering the surface tension of meniscus
B41J2/04585controlling heads based on thermal bent actuators
B41J2/04586controlling heads of a type not covered by groups B41J2/04575 - B41J2/04585, or of an undefined type
B41J2/04588using a specific waveform
B41J2/0459Height of the driving signal being adjusted
B41J2/04591Width of the driving signal being adjusted
B41J2/04593Dot-size modulation by changing the size of the drop
B41J2/04595Dot-size modulation by changing the number of drops per dot
B41J2/04596Non-ejecting pulses
B41J2/04598Pre-pulse
B41J2/05produced by the application of heat
B41J2/055Devices for absorbing or preventing back-pressure
B41J2/06by electric or magnetic field
B41J2/065involving the preliminary making of ink protuberances
B41J2/07characterised by jet control
B41J2/072by thermal compensation
B41J2/075for many-valued deflection
B41J2/08charge-control type
B41J2/085Charge means
B41J2/09Deflection means
B41J2/095electric field-control type
B41J2/10magnetic field-control type
B41J2/105for binary-valued deflection
B41J2/11for ink spray
B41J2/115synchronising the droplet separation and charging time
B41J2/12testing or correcting charge or deflection
B41J2/125Sensors
B41J2/13for inclination of printed pattern
B41J2/135Nozzles
B41J2/14Structure thereof only for on-demand ink jet heads
B41J2/14008Structure of acoustic ink jet print heads
B41J2/14016Structure of bubble jet print heads
B41J2/14024Assembling head parts
B41J2/14032Structure of the pressure chamber
B41J2/1404Geometrical characteristics
B41J2/14048Movable member in the chamber
B41J2/14056Plural heating elements per ink chamber
B41J2/14064Heater chamber separated from ink chamber by a membrane
B41J2/14072Electrical connections
B41J2/1408Structure dealing with thermal variations
B41J2/14088Structure of heating means
B41J2/14096Current flowing through the ink
B41J2/14104Laser or electron beam heating the ink
B41J2/14112Resistive element
B41J2/1412Shape
B41J2/14129Layer structure
B41J2/14137Resistor surrounding the nozzle opening
B41J2/14145Structure of the manifold
B41J2/14153Structures including a sensor
B41J2/14161Structure having belt or drum with holes filled with ink
B41J2/14201Structure of print heads with piezoelectric elements
B41J2/14209of finger type, chamber walls consisting integrally of piezoelectric material
B41J2/14233of film type, deformed by bending and disposed on a diaphragm
B41J2/14274of stacked structure type, deformed by compression/extension and disposed on a diaphragm
B41J2/14282of cantilever type
B41J2/1429of tubular type
B41J2/14298of disc type
B41J2/14314Structure of ink jet print heads with electrostatically actuated membrane
B41J2/1433Structure of nozzle plates
B41J2/14427Structure of ink jet print heads with thermal bend detached actuators
B41J2/14451Structure of ink jet print heads discharging by lowering surface tension of meniscus
B41J2/145Arrangement thereof
B41J2/15for serial printing
B41J2/155for line printing
B41J2/16Production of nozzles
B41J2/1601Production of bubble jet print heads
B41J2/1603of the front shooter type
B41J2/1604of the edge shooter type
B41J2/1606Coating the nozzle area or the ink chamber
B41J2/1607Production of print heads with piezoelectric elements
B41J2/1609of finger type, chamber walls consisting integrally of piezoelectric material
B41J2/161of film type, deformed by bending and disposed on a diaphragm
B41J2/1612of stacked structure type, deformed by compression/extension and disposed on a diaphragm
B41J2/1614of cantilever type
B41J2/1615of tubular type
B41J2/1617of disc type
B41J2/1618Fixing the piezoelectric elements
B41J2/162Manufacturing of the nozzle plates
B41J2/1621manufacturing processes
B41J2/1623bonding and adhesion
B41J2/1625electroforming
B41J2/1626etching
B41J2/1628dry etching
B41J2/1629wet etching
B41J2/1631photolithography
B41J2/1632machining
B41J2/1634laser machining
B41J2/1635dividing the wafer into individual chips
B41J2/1637molding
B41J2/1639sacrificial molding
B41J2/164thin film formation
B41J2/1642thin film formation by CVD [chemical vapor deposition]
B41J2/1643thin film formation by plating
B41J2/1645thin film formation by spincoating
B41J2/1646thin film formation by sputtering
B41J2/1648Production of print heads with thermal bend detached actuators
B41J2/165Preventing or detecting of nozzle clogging
B41J2/16505Caps, spittoons or covers for cleaning or preventing drying out
B41J2/16508connected with the printer frame
B41J2/16511Constructions for cap positioning
B41J2/16517Cleaning of print head nozzles
B41J2/1652by driving a fluid through the nozzles to the outside thereof
B41J2/16523Waste ink collection from caps or spittoons
B41J2/16526by applying pressure only
B41J2/16532by applying vacuum only
B41J2/16535using wiping constructions
B41J2/16538with brushes or wiper blades perpendicular to the nozzle plate
B41J2/16541Means to remove deposits from wipers or scrapers
B41J2/16544Constructions for the positioning of wipers
B41J2/16547the wipers and caps or spittoons being on the same movable support
B41J2/16552using cleaning fluids
B41J2/16579Detection means therefor
B41J2/16585for paper-width or non-reciprocating print heads
B41J2/16588Print heads movable towards the cleaning unit
B41J2/17characterised by ink handling
B41J2/1707Conditioning of the inside of ink supply circuits
B41J2/1714Conditioning of the outside of ink supply systems
B41J2/1721Collecting waste ink; Collectors therefor
B41J2/175Ink supply systems; Circuit parts therefor
B41J2/17503Ink cartridges
B41J2/17506Refilling of the cartridge
B41J2/17509Whilst mounted in the printer
B41J2/17513Inner structure
B41J2/1752Mounting within the printer
B41J2/17523Ink connection
B41J2/17526Electrical contacts to the cartridge
B41J2/1753Details of contacts on the cartridge
B41J2/17533Storage or packaging of ink cartridges
B41J2/17536Protection of cartridges or parts thereof
B41J2/1754with means attached to the cartridge
B41J2/17543Cartridge presence detection or type identification
B41J2/17546electronically
B41J2/1755mechanically
B41J2/17553Outer structure
B41J2/17556Means for regulating the pressure in the cartridge
B41J2/17559Cartridge manufacturing
B41J2/17563Ink filters
B41J2/17566Ink level or ink residue control
B41J2/17593Supplying ink in a solid state
B41J2/17596Ink pumps, ink valves
B41J2/18Ink recirculation systems
B41J2/185Ink-collectors Ink-catchers
B41J2/19for removing air bubbles
B41J2/195for monitoring ink quality
B41J2/20for preventing or detecting contamination of compounds
B41J2/205for printing a discrete number of tones
B41J2/2052by dot superpositioning
B41J2/2054by the variation of dot disposition or characteristics
B41J2/2056by ink density change
B41J2/21for multi-colour printing
B41J2/2103Features not dealing with the colouring process per se
B41J2/2107characterised by the ink properties
B41J2/211Mixing of inks, solvent or air prior to paper contact
B41J2/2114Ejecting transparent or white coloured liquids
B41J2/2117Ejecting white liquids
B41J2/2121characterised by dot size
B41J2/2125by means of nozzle diameter selection
B41J2/2128by means of energy modulation
B41J2/2132Print quality control characterised by dot disposition
B41J2/2135Alignment of dots
B41J2/2139Compensation for malfunctioning nozzles creating dot place or dot size errors
B41J2/2142Detection of malfunctioning nozzles
B41J2/2146for line print heads
B41J2/215by passing a medium
B41J2/22characterised by selective application of impact or pressure on a printing material or impression-transfer material
B41J2/225ballistic
B41J2/23using print wires
B41J2/235Print head assemblies
B41J2/24serial printer type
B41J2/245line printer type
B41J2/25Print wires
B41J2/255Arrangement of the print ends of the wires
B41J2/26Connection of print wire and actuator
B41J2/265Guides for print wires
B41J2/27Actuators for print wires
B41J2/275of clapper type
B41J2/28of spring charge type
B41J2/285of plunger type
B41J2/29of moving-coil type
B41J2/295using piezo-electric elements
B41J2/30Control circuits for actuators
B41J2/305Ink supply apparatus
B41J2/31using a print element with projections on its surface impacted or impressed by hammers
B41J2/315characterised by selective application of heat to a heat sensitive printing or impression-transfer material
B41J2/32using thermal heads
B41J2/325by selective transfer of ink from ink carrier
B41J2/33from ink roller
B41J2/335Structure of thermal heads
B41J2/33505Constructional details
B41J2/3351Electrode layers
B41J2/33515Heater layers
B41J2/3352Integrated circuits
B41J2/33525Passivation layers
B41J2/3353Protective layers
B41J2/33535Substrates
B41J2/3354characterised by geometry
B41J2/33545characterised by dimensions
B41J2/3355characterised by materials
B41J2/33555characterised by type
B41J2/3356Corner type resistors
B41J2/33565Edge type resistors
B41J2/3357Surface type resistors
B41J2/33575Processes for assembling process heads
B41J2/3358Cooling arrangements
B41J2/33585Hollow parts under the heater
B41J2/3359Manufacturing processes
B41J2/33595Conductors through the layered structure
B41J2/34comprising semiconductors
B41J2/345characterised by the arrangement of resistors or conductors
B41J2/35providing current or voltage to the thermal head
B41J2/355Control circuits for heating-element selection
B41J2/3551Block driving
B41J2/3553Heater resistance determination
B41J2/3555Historical control
B41J2/3556Preheating pulses
B41J2/3558Voltage control or determination
B41J2/36Print density control
B41J2/362Correcting density variation
B41J2/365by compensation for variation in temperature
B41J2/37by compensation for variation in current
B41J2/375Protection arrangements against overheating
B41J2/38Preheating
B41J2/385characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material
B41J2/3855Electrographic print heads using processes not otherwise provided for
B41J2/39using multi-stylus heads
B41J2/395Structure of multi-stylus heads
B41J2/40providing current or voltage to the multi-stylus head
B41J2/405Selection of the stylus or auxiliary electrode to be supplied
B41J2/41for electrostatic printing
B41J2/415by passing charged particles through a hole or a slit
B41J2/4155for direct electrostatic printing [DEP]
B41J2/42for heating selectively
B41J2/425for removing surface layer selectively from electro-sensitive material
B41J2/43for magnetic printing
B41J2/435characterised by selective application of radiation to a printing material or impression-transfer material
B41J2/44using single radiation source per colour
B41J2/442using lasers
B41J2/445using liquid crystals
B41J2/447using arrays of radiation sources
B41J2/4473using liquid crystal [LC] arrays
B41J2/4476using cathode ray or electron beam tubes
B41J2/45using light-emitting diode [LED] or laser arrays
B41J2/451Special optical means therefor
B41J2/455using laser arrays, the laser array being smaller than the medium to be recorded
B41J2/46characterised by using glass fibres
B41J2/465using masks
B41J2/4655using character templates
B41J2/47using the combination of scanning and modulation of light
B41J2/471using dot sequential main scanning by means of a light deflector
B41J2/473using multiple light beams, wavelengths or colours
B41J2/475for heating selectively by radiation or ultrasonic waves
B41J2/4753using thermosensitive substrates
B41J2/48melting ink on a film or melting ink granules
B41J2/485characterised by the process of building-up characters or image elements applicable to two or more kinds of printing or marking processes
B41J2/49by writing
B41J2/495by selective printing from a rotating helical member
B41J2/50by the selective combination of two or more non-identical printing elements
B41J2/505from an assembly of identical printing elements
B41J2/5052with special adaptations characterised by the ink properties
B41J2/5054with special adaptations characterised by dot size
B41J2/5056using dot arrays providing selective dot disposition modes
B41J2/5058locally
B41J2/51serial printer type
B41J2/512Adjustment of the dot disposition by adjustment of the arrangement of the dot printing elements of a print head
B41J2/515line printer type
B41J2/52Arrangement for printing a discrete number of tones, not covered by group B41J2/205
B41J2/525Arrangement for multi-colour printing, not covered by group B41J2/21