Abstract: A method and apparatus for producing an image on an imaging member. The apparatus includes a magnetic brush for depositing a substantially uniform layer of thermoplastic toner particles onto the imaging member. A laser scanner device is utilized to imagewise heat selected toner particles such that the selected toner particles are lightly tacked to the imaging member. The imaging member is contacted by a second magnetic brush, which includes a supply of magnetic carrier particles preferably having a coercivity of greater than about 100 oersteds, at least two times to remove nonselected toner particles from the imaging member. Alternatively, the imaging member may be contacted by two separate magnetic brushes at least one time to remove nonselected toner particles from the imaging member.

Abstract: Disclosed herein is an image printing method whereby a line head of a line printer performs line emission a plurality of times to print one primary scanning line. The number of times light is emitted by each edge emission type EL device corresponding to each pixel of one primary scanning line is controlled according to print density information contained in an input print signal. A plurality of flat pixel components are generated lengthwise and crosswise to form an approximately square pixel. This pixel is printed a plurality of times lengthwise and crosswise to form an image. The edges of the image are filled with suitably positioned pixels that have some of their components selectively left blank for visually smoothing effects.

Abstract: A head tending media for cleaning the print head of an ink jet printer. The head tend media having a portion of absorbent material attached to a backing material and being dimensioned to be fed through the normal print media feed mechanism of the printer. The absorbent material being positioned such that it is brought into contact with, and wipes the print head as the head tending media is advanced through the printer.

Abstract: A pixel row interlacing method and system, and print head for practicing same, for use with dot-matrix ink jet printers which apply ink to a substrate as elevated temperatures (e.g., phase change ink jet printers), which assures environmentally symmetric ordered placement of molten ink droplets and, thereby, achieves seamless dot-matrix printing and minimizes the horizontal striping or "banding" effects which are prevalent in prior art printers. Odd rows of print region are printed in one pass and the even rows of the same region are printed in the following pass. The guidelines for laying down dots are essentially: (1) adjacent dot rows should not be laid down in the same pass; (2) each dot row should be sandwiched by either (a) virgin paper on both sides of the dot row, or (b) ink on both sides of the dot row; (3) the first and the last dot row in each solid pattern are exempted from guidelines #2 and #3.

Abstract: This specification discloses an ink jet recording method and apparatus for printing thinning print dots based upon a printing mode or the printing dot density of the characters.

Abstract: An integrated thin film electrographic writing head. The writing head has integrated therein a plurality of marking electrodes or nibs arranged in a linear array for writing onto a medium, and a plurality of high voltage driving circuits for driving the nibs. The write head also includes a plurality of latches each connected to the high voltage driving circuits, a plurality of memory cells each connected to the latches, a plurality of buffers, each buffer supplying a select line to the plurality of memory cells, and a plurality of selection elements, supplying a selection signal to each of the buffers to drive a segment of memory cells. The integrated memory means and latching means allow for simultaneous latching and writing of an entire scanline of data.

Abstract: A charge image information transferring apparatus includes a recording member having a charge latent image; a photo-modulation member; a device for moving the recording member and the photo-modulation member relative to each other; and a device for transferring information, represented by the charge latent image. from the recording member to the photo-modulation member. An electric field of the charge latent image is applied to the photo-modulation member when a distance between the recording member and the photo-modulation member becomes equal to or smaller than a predetermined distance. The applied electric field has a magnitude which exceeds a threshold value with respect to a change in a condition of the photo-modulation member.

Abstract: Areas of a predetermined gray-scale in a desired image are printed on a sheet by a linear array of ink-jet ejectors. The individual ejectors are operated according to a probability function which controls the frequency of a random activation of the ejectors as the sheet moves past the ejectors. The frequency of activation is a function of the desired gray-scale of the area being printed. The resulting spots on the sheet are distributed in uniform lines in one dimension and randomly in another dimension.

Abstract: A dot-matrix printer which operates as a line head printer and is capable of reading line head printer print data and moving head printer print data. A memory stores print data. A series of clock pulses are generated and a shift register reads a portion of the print data from the memory. Upon receipt of a pre-determined clock pulse, the shift register writes the group of print data to a first latch register in a series of latch registers. The print data in each latch register is then written to a succeeding latch register. Upon receipt of a pre-determined clock pulse and in accordance with the print data, heating elements heat specific dot elements in a group of dot elements thus printing an equivalent of one print line. The print sheet is then advanced a distance equivalent to a print line comprising the group of dot elements and the process is repeated as required.

Abstract: A method and apparatus for applying a coating to a front face of an ink jet print head die or print head die comprise positioning a die in a cut out in a top surface of a block such that the die extends from the top surface of the block. An applicator such as a roller or flat blade is used to apply the coating to at least an upper surface of the die as the applicator rides along the upper surface of the die. When a roller is used as the applicator, the roller has a recess corresponding to the extension of the die from the top surface of the block. The roller recess contains a piece of elastomeric material which extends to an outer portion of the roller adjacent to said roller recess. The method and apparatus facilitate transfer of a thin, uniform film of coating to an ink jet printer print head die or a completed ink jet printer print head.

Abstract: A recording process, ink-jet device, ink jet recording apparatus and ink cartridge employing an ink comprising a dye and a liquid medium, wherein said dye is a dye of Formula (I): ##STR1## wherein R.sub.1 and R.sub.2 represent independently an alkyl group, an alkoxy group or an acetylamino group; R.sub.3 represents --SO.sub.3 M or a hydrogen atom; R.sub.4 represents a hydrogen atom, --SO.sub.3 M or --NRR.sub.5, where R.sub.5 represents a hydrogen atom, a phenyl group that may have a substituent, or a group of the formula ##STR2## where R.sub.6 and R.sub.7 represent independently a hydrogen atom or --C.sub.2 H.sub.4 OH; M represents an alkali metal; an ammonium group or an organic ammonium group; and l, m and n represent independently an integer of 0 or 1.

Abstract: Methods and apparatus are provided for forming images on a moving, charge retentive surface using a stream of radiant energy, modulated in imagewise fashion, wherein the intensity of the stream of radiant energy is controlled based on measured variations of the actual speed of the imaging surface from a set speed. In particular, a motion encoder, which is preferably the same motion encoder previously used to control the proper location of each line of information on the imaging surface is used to monitor the actual, instantaneous speed of the imaging surface to produce an actual speed signal. This actual speed signal is compared to a set speed signal to produce a speed variance signal which represents the difference between the actual imaging surface speed and the set speed. The variance speed signal is then used to control the intensity of the stream of radiant energy.

Abstract: An image recording apparatus for effecting the recording of an image on a recording medium has conveying member for conveying a transfer recording medium having a transfer recording layer whose transfer characteristic is varied by first energy and second energy differing from the first energy being imparted thereto, a recording section having first energy imparting member for imparting the first energy to the transfer recording medium and second energy imparting member for imparting the second energy to the transfer recording medium, the first and second energy imparting member being provided along the conveyance path of the transfer recording medium conveyed by the conveying member, a transfer section for transferring an image formed on the transfer recording medium in the recording section to the recording medium, and heater provided upstream of the recording section with respect to the direction of conveyance of the transfer recording medium for imparting heat energy to the transfer recording medium.

Abstract: A method of manufacture of a thermal inkjet printhead having a plastic orifice plate which comprises the steps of providing a dummy substrate upon which the printhead may be constructed, and then forming a plastic orifice plate member on top of the dummy substrate. Then, an insulating barrier layer is formed on the surface of the plastic orifice plate and is provided with a plurality of firing chambers therein which are aligned, respectively, with orifice openings in the plastic orifice plate. Next, a thin film resistor substrate is deposited on an exposed surface of the barrier layer and is provided with a plurality of individually defined heater resistors which are aligned, respectively, with the firing chambers in the barrier layer. Finally, the dummy substrate is removed from the composite structure using photoresist lift off techniques.

Abstract: A recording liquid including a pigment, a water-soluble resin, a water-soluble organic solvent, and water, wherein, of the water-soluble resin, water-soluble resin that is in the state of being dissolved in the recording liquid without being absorbed on the pigment is contained in an amount of not more than 2% by weight; and the water-soluble organic solvent comprises at least one of a polyhydric alcohol and an alkyl ether thereof, and an aliphatic monohydric alcohol. This recording liquid is used in an ink-jet recording method, recording unit, ink cartridge, and ink-jet recording apparatus.

Abstract: An ink jet printer (10) having a print head (14) for directing an ink jet toward a sheet of paper (16) includes automatic print head spacing apparatus (80) that holds the print head apart from the sheet of paper by a preselected distance. In a preferred embodiment, the printer includes a rotatable drum (20) for supporting the sheet of paper and media securing system (24) of a first predetermined thickness for securing the paper to the drum. The print head is positioned at the preselected distance after a major surface (130) of the print head engages and is pushed back by the media securing system.

Abstract: A quick and efficient method of testing the color registration on a multi-color electronic reprographic system includes the generation a latent image of a repeated basic test pattern across and down an photoconductive surface. Several images of this repeated test pattern are generated, one for each color in the reprographic system. Each test pattern is shifted a fixed amount so that the final output page displays a set of output figures. A figure of one color will be surrounded by at least one figure of each of the remaining colors of the reprographic system. Using this system a field technician can determine the level of misregistration between all of the colors.

Abstract: An electro-optic imager, used for exposing photosensitive media imagewise, wherein a linear array of scanning elements is scanned across a portion of the image, to produce a first region or band of image or information, and then translated in a direction parallel to the linear axis of the scanning elements for another scanning operation to produce a subsequent band, slightly overlapping the previous band. The translation, relative to the photoreceptor, of the scanning array is made very reproducible by establishing the position of a moving member by reference to that of a stationary notched or indented member or members, and the resultant image is made very uniform by adjusting the data controlling the imager within the region of redundant imaging to compensate for minor but known imperfections in this stationary member.

Abstract: An image recording apparatus and method performs recording by making an ink adhere to a recording medium according to the blot ratio of a recording medium, when using an ink droplet or heat sensitive ink. Input recording data is discriminated based on a predetermined reference value based on the blot ratio and when the image data is larger than the reference value, the image data is reduced in order to reduce the ink dot size. Reducing the ink dot size at a recording boundary improves the quality of the image recorded at the recording boundary.

Abstract: A large scale LED exposure array and system for printers, and unique methods of inputting data to and operating such an array, are disclosed. The array can be loaded and refreshed with data information at rates compatible with high speed printing, and forms part of an electronic image forming and handling system which can load an refresh an exposure array at variable speeds of at least 100 to 300 ft./min. The system includes compensation for differences in illuminating capability of individual LEDs in a large array, by introducing modifications in LED on-time which are centered with respect to the incremental area of the photoreceptor on which a pixel is to be formed, and to compensate for changes in pixel exposure time with increase in speed of the photoreceptor.

Abstract: To correct for blooming artifacts in an ionographic imaging device, a summation of the effects of previously deposited charge is made prior to depositing ions to form the image, to determine the likely amount of displacement of any ion due to a previously deposited charge. A comparison of the displaced pixel position, with the desired image is made to determine where the ions will fall. If the ions are predicted to fall within an area in which ion deposition is desired, ions are allowed to pass to the imaging surface. If the comparison of the displaced pixel position with the desired image is made and predicts that ions will fall outside of an area in which charge is desired, ions are prevented from passing to the image surface.

Abstract: Disclosed is a thermal ink jet printing process which comprises incorporating into a thermal ink jet printing apparatus an ink composition comprising a colorant and a liquid vehicle which comprises a mixture of water and an organic component selected from the group consisting of: (1) cyclic amides; and mixtures thereof; and heating selected nozzles in the printing apparatus containing the ink, thereby causing droplets of the ink to be ejected in an imagewise pattern onto a substrate.

Abstract: Disclosed in an ink jet recording apparatus capable of providing high quality images in a stable manner for image signals of different transfer rates. A detector detects the receiving rate of an image signal supplied to the ink jet recording apparatus, and at least one of driving voltage, driving current, pulse duration, driving frequency and driving signal wave form is modified according to the detected receiving rate of the image signal.

Abstract: Printing onto a cable jacket in which while the cable moves along a passline in "in-line" production, a longitudinally extending band of the jacket is treated with an oxidizing gas flame to provide an oxidized surface and a jet printer prints a legend onto the surface. The method is of particular use when the jacket is formed from materials, e.g. polyethylene to which ink does not normally adhere readily.

Abstract: A system controls an ink jet printing apparatus for propelling ink jet droplets on demand from a printhead having a plurality of drop ejectors. In the printhead, each ejector includes a heating element actuable in response to electrical input signals, each input signal having an amplitude and a time duration, selectably applied to the heating element to produce a temporary vapor bubble and cause a quantity of ink to be emitted for the creation of a mark on a copy sheet. The temperature of ink in the printhead is sensed, and a combination of power level and time duration of the electrical input signal for the heating element to result in a desired size of the mark of the copy sheet is selected, by entering the sensed temperature of the ink into a predetermined function relating the energy of the electrical input signal to the corresponding resulting size of the mark on the copy sheet.

Abstract: A method of driving an ink jet head for gradient recording uses an electrical signal comprising an expanding pulse and a reducing, driving pulse. The signal is applied to a transducer such as a piezoelectric element to vary the space of an ink path and discharge ink as a droplet from a discharge port. The width and voltage of the driving pulse are only both increased or both decreased in response to changes in the recording data, with the ratio of the width to the voltage remaining constant. This driving method simplifies circuit construction, and provides for an increased range of droplet diameters and, accordingly, improved gradient recording. An apparatus for performing the method is also disclosed.

Abstract: An ink composition which comprises an aqueous liquid vehicle, a colorant, and silica particles in an amount of from about 0.1 to about 5 percent by weight. The inks are particularly suited for ink jet printing processes, including thermal ink jet printing processes, and exhibit increased drop volume and increased drop velocity when employed in ink jet printing processes.

Abstract: An imaging system comprising a source of light movable with respect to an image carrier element and projectable thereon to generate an image, and an auto-focusing system for focusing the image-generating light source. The auto-focus system includes a second beam of light of a wavelength selected not to be actinic with respect to the image carrier element. The initial set up of the auto-focus system is enhanced by the use of the focusing system and a sensor for indicating the output of the focus photodetector to register a zero output which indicates the initial set position.

Abstract: An ink jet recording apparatus includes a recording head having ink discharging portions for discharging ink and an ink chamber for supplying the ink to the discharging portions in accordance with discharging of the ink by the discharging portions, a plurality of ink supply ports for supplying ink to the ink chamber, ink supplying systems for supplying the ink through the ink supplying ports, a plurality of temperature detectors for detecting temperature of the recording head at different positions, and a controller, responsive to the temperature detectors for controlling supply of the ink through the ink supply ports and by the ink supplying systems.

Abstract: A method for transferring a hot-melt transparent protective material comprising steps of; contacting an ink sheet on which one or more color hot-melt ink layers have been provided with a moving recording medium, pressing and heating a thermal head system having an array of heat elements from above the ink sheet to print desired information, contacting a protective material sheet on which a hot-melt transparent protective material layer has been provided, with a printed surface of the recording medium, and pressing and heating the thermal head system from above the protective material sheet to transfer the hot-melt transparent protective material onto a surface of the picture and to apply thereon an overcoat of the hot-melt transparent protective material having a specific pattern.Another method for transferring a hot-melt transparent protective material comprises a step of transferring the hot-melt transparent protective material plural times onto the surface of the picture.

Abstract: Disclosed is a printing process which comprises applying in imagewise fashion to a substrate an ink composition which comprises an aqueous liquid vehicle, a colorant, and an ionic compound at least partially ionizable in the liquid vehicle, said ink composition having a conductivity of at least about 10 milliSiemens per centimeter, and subsequently exposing the substrate to microwave radiation, thereby drying the images on the substrate.

Abstract: An ink jet recording method which performs color recording and monochromatic recording while moving relatively a head equipped with nozzles corresponding respectively to 4 colors of cyan, magenta, yellow and black and a recording medium in the main scanning direction and the sub-scanning direction. The main scanning speed during the monochromatic recording is made faster than during the color recording, and the monochromatic recording is performed by recording dots of black and black dots formed by mixing of the three colors of cyan, magenta and yellow alternately on the recording medium.

Abstract: A method for controlling the curl of high density images on transparent media is provided for thermal dye transfer printers. The method includes wrapping the transparent receiver media around the print drum a preselected amount during printing. For a mechanical drive printer, the amount of wrapping is about 210 degrees. For capstan drive systems, the degree of wrapping is about 90 to about 160 degrees.

Abstract: An ink-jet recording method and apparatus using an aqueous ink that comprises a recording agent and a liquid medium for dissolving or dispersing the recording agent, the ink comprising a compound represented by the general formula (I) or (II): ##STR1## wherein R.sub.1 and R.sub.2 are independently selected from the group consisting of radicals of hydrogen, alkyl or alkoxy having not more than 10 carbons, sulfonic acid or salts thereof, nitro, hydroxyl, carboxyl, and amino or derivatives thereof, and R.sub.1 and R.sub.2 are not simultaneously a hydrogen radical.

Abstract: A liquid jet method for ejecting liquid using a bubble created by heating the liquid in a passage, characterized in that a non-dimensional number Z which is determined by the nature of the liquid, a heat flux and a configuration of the passage and which is specific to a recording head is not less than 0.5 and not more than 16; whereZ.ident.(.pi./6).sup.1/2 Tgk(p.sub.g /q.sub.0).sup.3/2 /(.rho..sub.g Lg.multidot.a.multidot.S.sub.H A).sup.1/2 ;Tg is a superheat limit temperature of the major component of the liquid;Pg is a saturated vapor pressure of the major component of the liquid at temperature Tg;.rho.

Abstract: Provided is an ink containing a recording agent and a liquid medium for dissolution or dispersion thereof, said ink comprising, as the recording agent, a compound represented by the general formula (A) ##STR1## where n is 0 or 1; R.sub.1, R.sub.2, and R.sub.3 are respectively a substituent selected from the group consisting of hydrogen, methyl, methoxy, hydroxy, amino, acetylamino, and sulfonic acid; and M is an alkali metal, ammonium, or an organic ammonium.

Abstract: An ink composition that includes water, a water-soluble organic solvent and a dye. The dye is represented by the following Formula, in which the number of sulfonic acid groups and the number of amino groups are each not less than 2, and the number of sulfonic acid groups is less than that of amino groups: ##STR1## Q.sub.1 denotes a substituted phenyl group, pyridyl group or naphthyl group; Q.sub.2 denotes a substituted or unsubstituted p-phenylene group or 1,4-naphthylene group; Q.sub.3 is a SO.sub.3 M-substituted or unsubstituted diaminopyridyl group or a diaminophenyl group substituted by COOM or SO.sub.3 M; M denotes an alkaline metal, ammonium or organic ammonium; and n denotes 0 or 1.

Abstract: An ink that includes a liquid medium and a dye represented by the following Formula (I): ##STR1## wherein M represents a cation selected from an alkali metal, ammonium, and an organic ammonium; R.sub.1 and R.sub.2 independently represent a group selected from a hydrogen atom, a methyl group, a methoxy group, an ethoxy group, and an acetylamino group; R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.8 independently represent a group selected from a hydrogen atom, a hydroxyl group, a sulfonic acid group, a methoxy group, and an ethoxy group; X represents a hydrogen atom, an acetyl group, a benzoyl group, --SO.sub.2 C.sub.6 H.sub.5, --SO.sub.2 C.sub.6 H.sub.4 CH.sub.3, or ##STR2## where R.sub.9 and R.sub.10 independently represent a hydrogen atom, or --C.sub.2 H.sub.4 OH; and the sulfonic acid group is present as a salt of the same cation as that represented by M.

Abstract: Data is recorded with a plurality of clocked recording elements in a plurality of recordings in a plurality of different scales determined by different data recording parameters. Data recording parameters for any scale are electronically fixed for each recording in that scale, and are stored in a lookup table. Such stored data recording parameters are derived from that lookup table for determining the clocked recording elements for data recording in the particular scale, and data is recorded with such determined clocked recording elements in that scale.

Abstract: An adaptive dryer for a printing system obtains values representing mass of ink and/or area coverage of ink on each page to be printed prior to drying and based on the determined mass-area coverage varies one or both of feed rate of the pages through the dryer and temperature of the dryer to more closely adapt the drying parameters of the dryer with the particular drying criterion each page requires for optimal quality, highest average throughput and minimal heating power requirements.

Abstract: Positioning of a scan line (L) relative to a recording medium drum (15) of a polygon printer is established by independently adjusting blocks (35, 36) mounted on a scan line generating optics module (10) through adjustments made to an external beam sensing fixture (52). Inverted V-notches (38) used for nesting the blocks (35, 36) onto cylindrical surfaces of drum bearings (33) are nested onto corresponding cylindrical surfaces of fixture ends (54, 55). X, z, .theta..sub.x and .theta..sub.z positions are then set by x and z direction adjustment screws (44, 45, 49, 50) mounted on a support structure (73) to make adjustments in the fixture positions against the bias of springs (100). Clamping screws (45, 46) pass through oversized holes (47, 48) on blocks (35, 36) to releasably lock blocks (35, 36) after adjustment. The z direction adjustment includes levers (85) and dual ball socket assemblies (95, 96, 97) so that adjustment of the .theta..sub.

Abstract: An ink comprising: water, a water soluble organic solvent, and a colorant represented by the following general formula (I): ##STR1## wherein Q1 is a substituted phenyl group; Q2 is a substituted or unsubstituted p-phenylene or a substituted or unsubstituted 1,4-naphtylene group; Q3 is a substituted phenyl group; M is an alkali metal, ammonium or an organic ammonium; and n is 0 or 1, and wherein said colorant has at least a sulfone group and a carboxyl group and the number of said sulfone groups is not greater than the number of said carboxyl groups. Such an ink may be used for an ink jet recording.

Abstract: Direct electrostatic printing apparatus including a cylindrically shaped donor structure for delivering imaging material such as toner particles to a printhead forming an integral part of the printing device. The printhead structure includes control electrodes and a shield electrode structure secured to opposite sides of an insulative base. The donor structure has a relatively small diameter compared to such devices of the prior art making it impossible to deliver adequate quantities of toner to some of the printhead apertures using electrical biasing techniques of the prior art. In the device disclosed, the printhead apertures are biased according to the aperture spacing from the donor structure. The magnitude of the bias or its duration applied to the apertures farther from the donor structure surface is such that toner delivery to those apertures is equal to that of all other apertures.

Abstract: A multi-orifice ink jet print head array (32) includes multiple drive circuits that drive respective PZTs (16) to cause ink drops to be ejected from respective orifices (28). Each drive circuit includes a voltage divider (36) having a resistor R.sub.S. The ink drop ejection velocity is controlled by selecting an appropriate value of R.sub.S for each voltage divider, thereby compensating for imperfections in manufacturing of the print head array. The value of a particular R.sub.S is selected by temporarily connecting the corresponding voltage divider (36A), in which the value of R.sub.S is R.sub.I, to assessment circuit (56). The assessment circuit includes a potentiometer (66) with resistance value R.sub.POT. Ink drops are ejected at a rapid periodic rate as a camera (102) records the position of the ink drops with respect to a graticule (94) at the time a strobe (100) flashes. The value of R.sub.POT is adjusted until the ink drops are on the graticule as viewed on a monitor (108), at which time R.sub.POT =R.

Abstract: Disclosed is an ink jet recording head comprising a plurality of channels, wherein the channels are capable of being filled with ink from an ink supply and wherein the channels terminate in nozzles on one surface of the printhead, the surface being coated with a polyimide-siloxane block copolymer.

Abstract: In a magnetic printing machine including at least two recording frequency generators which generate at least two recording frequencies with close each other, a recording current applied to a recording head for the same gradation level is switched among at least two recording frequencies every time a predetermined number of pixels are recorded.

Abstract: A raster output scanner (ROS) system is configured to direct a scanning beam of light against a surface of a photosensitive imaging member at the Brewster angle is determined by the angle of refraction of the medium on both sides of the interface. When incident at the Brewster angle, the light rays, polarized in the plane parallel to the plane of incidence, will be almost totally absorbed by the photosensitive layer of the imaging member, resulting in almost total elimination of primary reflections from the surface of the imaging member. The increased transmission yields two benefits. The plywood effect created by the interference of the first dominant reflection from the top surface, and a second dominant reflection from the ground plane of the imaging member is eliminated. The second byproduct of exposing the imaging member at the Brewster angle is to create a reduction in the permissible tolerances for variations of the thickness of the photosensitive top layer of the imaging member.

Abstract: An image forming method for forming an image as an array of picture elements one line by one line includes the steps of detecting the content of the picture elements for every three consecutive picture elements included in each line, each set of the three consecutive picture elements being defined by an aimed picture element located at an end and carrying a content to be recorded, a second picture element located adjacent to the first picture element, and a third picture element located adjacent to the second picture element at a side away from the first picture element; recording a non-blank dot for the aimed picture element while setting the size of the recorded dot at a first predetermined size, when a first condition that the second picture element of the three consecutive picture elements represents a blank dot and a second condition that the third picture element represents a non-blank dot are met simultaneously; recording a non-blank dot for the aimed picture element while setting the size of the dot a

Abstract: A heat-sensitive recording method of performing a thermal printing at variable printing time intervals by a thermal head in a facsimile apparatus.

Abstract: The present invention relates to a method for manufacturing an ink jet recording head having an ink path communicated with a discharge opening, a discharge energy generating element disposed in the ink path and a discharge opening plate on which the discharge opening is formed. The discharge opening plate is attached to an end surface of the ink path. The discharge opening is formed by irradiating an excimer laser light on the discharge opening plate from a side of the plate which is attached to the ink path.