Abstract: Embodiments include a system, a device, an apparatus, a method, and a computer program product. An embodiment provides a system that includes an imaging device operable to capture an image depicting a member of a class of subjects that may have a temporal presence in an area. The system also includes an anonymization device having a selector circuit operable to select an anonymization policy. The anonymization policy includes obscuring a property of the class of subjects depicted in the captured image. The system further includes a broadcast device operable to display a human-perceivable indication of the selected anonymization policy to at least a portion of the area. The system also includes an anonymization circuit operable to generate an anonymized image by applying the selected anonymization policy to an image captured by the imaging device and depicting a member of the class of subjects.

Abstract: Annotations in CAD drawings are given fixed sizes so that CAD application will generate the annotations at the fixed size even though modeled objects within the CAD drawing are scaled in accordance with a paper space scale selected by the CAD designer. The annotations generally comprise text annotations and graphic annotations, including one or more of text, dimensions, hatch patterns, and symbols, and are represented as annotation objects having multiple properties, such as size, visibility, position and rotation.

Abstract: The present invention discloses a LED luminance control circuit comprising one or several LEDs and a driving circuit, the driving circuit being connected in series with said one or several LEDs to provide energy to the one or several LEDs, wherein a control circuit is connected in parallel on both terminals of said one or several LEDs and controls on/off of the LEDs connected in parallel thereto. Connections between the several LEDs may be in parallel, in series, or combination thereof. The present invention also discloses an LED backlight source of a liquid crystal display using the above LED luminance control circuit. The present invention can implement the luminance control of various power LEDs quickly on basis of simplicity and low cost without influence on the luminance of other LEDs, by individual luminance control for every one or several LEDs, so as to solve some display technical problems when using LEDs as a display device.

Abstract: A liquid crystal display device includes: a liquid crystal panel; and a driving unit configured to drive the liquid crystal panel. The liquid crystal panel includes: a plurality of scanning lines, a plurality of signal lines and a plurality of pixels. The plurality of scanning lines extends in a first direction. The plurality of signal lines extends in a second direction. The plurality of pixels is arranged in positions where the plurality of scanning lines intersects with the plurality of signal lines. Pixels which are included in the plurality of pixels and aligned along one of the plurality of scanning lines have a same color. The driving unit includes: a plurality of amplifiers configured to drive the plurality of signal lines.

Abstract: A display driving device that drives, based on display data and through a data line, each of a plurality of pixels of different colors, disposed along the data line, connected to the data line and put into a selected state sequentially, comprising: a current generating circuit that generates and outputs a data current which has a current value corresponding to a brightness designated by the display data; and a current control unit that receives the data current that is outputted from the current generating circuit; generates a gradation current, based on the received data current and the display characteristics of each display pixel that is put into the selected state; and supplies, to the data line, the generated gradation current, so that the pixel emits light at the designated brightness based on the display characteristics thereof.

Abstract: A display apparatus with a brightness control function is provided, in which a camera portion generates a first detection signal in an image mode by capturing an image of an object by an image sensor according to a first control signal and generates a second detection signal in an illumination mode by detecting external illumination by the same image sensor according to a second control signal. The display displays an image signal, and a controller provides the first control signal to the camera portion in image detection mode, and provides the second control signal to the camera portion in illumination detection mode to control brightness of the display based on the second detection signal received from the camera portion. Only part of the pixels of the image sensor can be used in the illumination detection mode so that additional parts are not required to provide automatic illumination control.

Abstract: Apparatus and methods are provided that employ one or more of a variety of techniques for reducing the time required to display high resolution images on a high dynamic range display having a light source layer and a display layer. In one technique, the image resolution is reduced, an effective luminance pattern is determined for the reduced resolution image, and the resolution of the effective luminance pattern is then increased to the resolution of the display layer. In another technique, the light source layer's point spread function is decomposed into a plurality of components, and an effective luminance pattern is determined for each component. The effective luminance patterns are then combined to produce a total effective luminance pattern. Additional image display time reduction techniques are provided.

Abstract: Apparatus and methods are provided that employ one or more of a variety of techniques for reducing the time required to display high resolution images on a high dynamic range display having a light source layer and a display layer. In one technique, the image resolution is reduced, an effective luminance pattern is determined for the reduced resolution image, and the resolution of the effective luminance pattern is then increased to the resolution of the display layer. In another technique, the light source layer's point spread function is decomposed into a plurality of components, and an effective luminance pattern is determined for each component. The effective luminance patterns are then combined to produce a total effective luminance pattern. Additional image display time reduction techniques are provided.

Abstract: The present invention relates to ultra-resolution displays and methods for their operation. According to one embodiment of the present invention, an ultra-resolution display is provided where a common display screen is displaced from an array of display devices such that native frustums of respective ones of the display devices are expanded to define modified frustums that overlap on the common display screen. An image processor is programmed to execute an image blending algorithm that is configured to generate a blended image on the common display screen by altering input signals directed to one or more of the display devices. In this manner, the system can be operated to render an output image that is composed of pixels collectively rendered from the plural display devices. As a result, the resolution of the rendered video can exceed the video resolution that would be available from a single display.

Abstract: A shaft portion 2a of a platen roller 2 is inserted into an elongated hole-like recess 5a of a platen frame 5 so as to be movable therein. A release arm 9 having an engagement portion 9b engaged with a shaft portion 2a is swingably provided and is urged by a spring member 10. A switch 11 has an intercept 11a which can be contacted/separated to/from the release arm 9. When a thermal head 1 is moved against a spring force of a spring member 4, the release arm 9 follows the thermal head 1 to be allowed to swing by the spring member 10, thereby moving the shaft portion 2a in the recess 5a. When the switch 1 detects movement of the release arm 9, it is determined that recording is impossible since the thermal head 1 and the platen roller 2 are spaced apart from each other.

Abstract: A liquid discharging head includes a channel unit formed of a plurality of stacked plates having openings and a liquid channel formed of the openings of the stacked plates. A curing material is filled in a step formed due to shift of the openings provided in the adjacent plates respectively, and the curing material forms part of an inner surface of the liquid channel. Consequently, the channel inner surface becomes smooth, and a liquid discharging head with little residual bubbles and with excellent bubble discharging capability is provided. Further, the attenuation of a pressure wave due to the step can be prevented.

Abstract: An image forming apparatus includes: a rearrangement device having a configuration whereby the print data is rearranged in such a manner that data of pixels corresponding to mutually adjacent recording elements which are aligned on a straight line in the second direction in the recording head is located within a same word or within adjacent words; and an image buffer memory having at the least a storage capacity of storing the print data rearranged by the rearrangement device for an image region corresponding to a surface area occupied by a plurality of recording elements arranged in a two-dimensional matrix configuration in a recording head.

Abstract: An apparatus to control a heater in an ink jet printer head. The apparatus to control the heater in an ink jet printer head includes a limit circuit to generate a limit pulse to limit a strobe pulse such that a maximum driving time of the heater is limited to an abnormal input of a system clock which is provided from the printer body. The maximum driving time of the heater is limited even when an erroneous serial clock signal pulse is input due to an abnormal operation of the printer body in a printing operation to prevent breakdown of the heater.

Abstract: An image forming apparatus for forming an image on a recording medium is disclosed. The image forming apparatus includes a print head (4) having an ink emitting surface (6) in which there are formed a plural number of ink emitting openings (13). An ink is emitted from the ink emitting openings (13) for forming an image on a recording medium. The image forming apparatus also includes an emission controller (41) for controlling the ink emission from the ink emitting openings (13) formed in the ink emitting surface (6). The emission controller (41) is responsive to an input image signal to control the quantity of preliminary ink emission from one or more of the ink emitting openings (13) or to select one or more of the ink emitting openings (13).

Abstract: A printer is described that has a configurable memory to which waveform definitions are uploaded just prior to a printing process. The printer manufacturer can program a printer controller with waveforms that have been created by the printer manufacturer, instead of waveforms pre-programmed by the printhead manufacturer.

Abstract: An electronic apparatus capable of preventing a peak current from being introduced into internal units of the electronic apparatus when the internal units are simultaneously activated and a method to control one or more internal units thereof. The electronic apparatus includes at least one internal unit and a signal generator to generate a drive pulse having a width that gradually changes in an edge region and to drive the at least one internal unit. Accordingly a peak current is prevented from being introduced into the internal units by gradually increasing or decreasing the drive pulse to drive the internal units as time changes or by dividing the internal units into a block unit and sequentially providing the drive pulse to the internal units.

Abstract: A multi-pass printing system and a corresponding method are provided for printing an image, which includes a plurality of continuous-tone values, based on halftone matrices having threshold values. The printed image is composed of sub-images, each of which includes dots printed in a respective pass. The sub-images present independent dot patterns at corresponding places. The printing system is arranged to obtain the sub-images by splitting the continuous-tone values into at least two pass values, an individual pass value indicating an intensity to be printed in a respective pass. Then, in one pass a first halftone matrix for printing the respective pass values, and in another pass one or more second halftone matrices are used, which are obtained by positionally shifting the threshold values of the first halftone matrix, for printing all pass values of the other pass, or at least those pass values above a highlight threshold.

Abstract: A printing apparatus for printing on a medium to be printed includes an ink ejection section for intermittently ejecting ink while moving, wherein the printing apparatus detects a distance from the ink ejection section to the medium to be printed, and controls a timing of intermittent ejection of the ink from the ink ejection section based on the distance that has been detected. With such a printing apparatus, the timing at which ink is ejected can be controlled taking into account the distance from the ink ejection section to the medium to be printed.

Abstract: A media assembly and printer media supply are provided that enable automatic determination of a predetermined parameter value of a strip of media material are disclosed. The media assembly includes a cylindrical core upon which a strip of the media material is spirally wound. The core has an end into which at least one notch is recessed such that the notch has a physical characteristic indicative of the predetermined parameter value of the wound strip. The assembly further includes a flange on the core end wherein the flange is adapted to detect the physical characteristic of the notch and to adapt a tactile feature that represents the parameter value of the wound strip. The printer media supply allows automatic detection of the feature and determination of the predetermined parameter value based upon the detected feature.

Abstract: One or more preventative maintenance mode parameters for an inkjet-printing device having an inkjet-printing mechanism are determined based on a water loss rate of water from ink within the device and/or on an air gain rate of air into the ink within the device. As such, periodic performance of a non-user-initiated preventative maintenance mode based on the preventative maintenance mode parameters results in the ink within the inkjet-printing mechanism being sufficiently fresh so as not to affect quality of image formation by the inkjet-printing device. Therefore, the non-user-initiated preventative maintenance mode for the inkjet-printing device is periodically performed based on the preventative maintenance mode parameters to eject at least some of the ink from, and to refill fresh ink into, the inkjet-printing mechanism.

Abstract: A method for automatic pen alignment in a printing apparatus, wherein the printing apparatus has a scan direction or x-axis and a media advance direction or y-axis, orthogonal to said scan direction or x-axis, the method comprising the steps of performing a pen alignment process, determining an alignment correction algorithm to be applied during subsequent printing, to compensate for the misalignment determined in said pen alignment process, measuring an output angle of the media, defined as the angle between the y-axis and the actual direction of advance of the media, with at least one optical sensor arranged stationary on the printing apparatus, and employing the measured output angle to modify the alignment correction algorithm to be applied during subsequent printing.

Abstract: This invention relates to an element substrate capable of confirming an electrical connection status before a printhead malfunctions. The element substrate is a substrate for a printhead, which is detachable from a printing apparatus and includes a plurality of printing elements, a logical circuit for controlling the printing elements, and a voltage application terminal for applying a driving voltage to drive the printing elements. The logical circuit is driven at a voltage lower than the driving voltage. The element substrate includes a connection status output circuit which outputs a signal reflecting the electrical connection status between the printhead and the printing apparatus on the basis of the driving voltage.

Abstract: A printing apparatus is disclosed.

Abstract: A flushing method for a liquid ejecting apparatus for ejecting liquid from nozzles of a liquid ejecting head toward a liquid reception portion which faces a nozzle opening surface of the liquid ejecting head in order to prevent the nozzles from being clogged. The method comprises creating an electric field between the nozzle opening surface and the liquid reception portion, ejecting the liquid from a reference nozzle toward the liquid reception portion, detecting a variation in voltage when the liquid is ejected from the reference nozzle toward the liquid reception portion using electrostatic induction, changing a liquid ejecting condition for the nozzles based on the detected variation in voltage, and ejecting the liquid from the nozzles to the liquid reception portion based on the liquid ejecting condition.

Abstract: The invention provides a method for flushing a liquid ejecting apparatus by ejecting liquid from a nozzle of a liquid ejecting head toward a liquid catcher that is provided opposite to a nozzle opening surface of the liquid ejecting head. The method comprises applying an electric field between the nozzle opening surface and the liquid catcher, ejecting the liquid from the nozzle toward the liquid catcher, detecting a change in voltage that is attributable to electrostatic induction generated when the liquid is ejected toward the liquid catcher, and determining whether to continue or discontinue the ejection of the liquid based on the change in voltage.

Abstract: Printer waste ink subsystem apparatuses are described including an apparatus located between a waste ink pump output port and a waste ink container such as a waste ink pad or sponge for containing waste ink splashing. In one illustrative example, a muffler is placed at the distal end of the waste ink pump discharge port. Such a muffler contains waste ink splatter caused by air bubbles in the waste ink stream as it exits the waste ink pump output port.

Abstract: A liquid ejector includes a structure defining a chamber. The chamber includes a first surface and a second surface. The first surface includes a nozzle orifice. A drop forming mechanism is located on the second surface of the chamber opposite the nozzle orifice. A first liquid feed channel and a second liquid feed channel are in fluid communication with the chamber. A first segment of a segmented liquid inlet is in fluid communication with the first liquid feed channel and a second segment of the segmented liquid inlet is in fluid communication with the second liquid feed channel.

Abstract: A liquid ejection head and a method of forming the same. The liquid ejection head includes a substrate, an ejection port, a liquid channel, and a supply port. The substrate has, above one side thereof, an energy generating element configured to generate energy used to eject liquid. The ejection port, from which a liquid is ejected, is located at a position corresponding to the energy generating element. The liquid channel communicates with the ejection port and penetrates the substrate from the one side to another side of the substrate. The supply port communicates with the liquid channel. The substrate has a projecting layer extending inward of an inner peripheral portion of an opening in the supply port in the one side, and the projecting layer and the energy generating element are formed of the same material.

Abstract: The present invention provides an ink jet recording head which includes a substrate, an energy generating element which is disposed on the substrate and generates energy for discharging a liquid, an electrode which is disposed on the substrate and is electrically connected to the energy generating element, a passage-forming member which is disposed on the substrate, an adhesion layer which is disposed on the substrate and facilitates adhesion between the passage-forming member and the substrate, and a bump disposed on the electrode. The area of an upper surface of the bump is larger than the area of a lower surface of the bump, the lower surface being located on the substrate side, the upper surface being located opposite the lower surface, and a side face of the bump is covered with the adhesion layer. Thereby, a protective film is formed around the bump.

Abstract: There is provided a liquid transporting apparatus which includes a substrate having an insulating surface, a plurality of liquid transporting channels, a common liquid chamber which supplies a liquid to the liquid transporting channels, a plurality of individual electrodes arranged on the plurality of liquid transporting channels respectively, an insulating layer which covers the individual electrodes, a plurality of wire portions which are connected to the individual electrodes respectively, and a driver IC which applies a driving electric potential to the individual electrodes. Accordingly, it is possible to make simple a structure of the liquid transporting apparatus, and to reduce a manufacturing cost.

Abstract: A droplet discharging head comprises: a cavity substrate including a discharge chamber having a bottom wall serving as a vibration plate; and an electrode substrate including an individual electrode that faces the vibration plate with a gap and drives the vibration plate, and a driver integrated circuit (IC) that couples with the individual electrode and applies a voltage to the individual electrode. The cavity substrate includes a first opening that penetrates the cavity substrate and serves to house the driver IC, and an insulation film formed on a wall face of the first opening.

Abstract: A droplet discharging head comprising: a piezoelectric element that has a flex-deformable piezoelectric body, a first electrode, and a second electrode that sandwich the piezoelectric body therebetween; a vibrating plate arranged at the first electrode side of the piezoelectric element; a wiring plate that is arranged at the second electrode side of the piezoelectric element and is provided with a first electrical wiring that supplies an electrical signal to the piezoelectric element; a pressure chamber provided at a side opposite the piezoelectric element with the vibrating plate disposed therebetween; and a discharge port that discharges droplets from the pressure chamber, the first electrode and the first electrical wiring being individually connected via a through-hole formed in the second electrode, is provided.

Abstract: A liquid transport apparatus includes a base member having a surface in which a pressure chamber and a liquid flow passage are formed, the liquid flow passage being communicated with the pressure chamber and having a flow passage cross-sectional area smaller than that of the pressure chamber and a piezoelectric actuator having a pressure-applying portion which applies a pressure to a liquid in the pressure chamber and an opening/closing portion which opens and closes the liquid flow passage. The pressure-applying portion faces the pressure chamber, the opening/closing portion faces the liquid flow passage, and the pressure-applying portion and the opening/closing portion are arranged along the surface of the base member.

Abstract: A droplet ejecting apparatus, including: a head unit having a generally planar shape and including nozzles through which droplets are ejected, a holder holding the head unit, a reinforcing plate via which the head unit is held by the holder and which has an adhesion surface as at least a part of one of opposite surfaces thereof to which an adhesion surface of the head unit as at least a part of one of opposite surfaces thereof is adhered with an adhesive layer interposed between the adhesion surfaces, and an adhesion portion constituted by the adhesion surfaces and the adhesive layer, wherein the adhesion portion has a special region in which (a) first sections in each of which respective parts of the adhesion surfaces are opposed to each other with a part of the adhesive layer interposed therebetween and are adhered to each other and (b) second sections in each of which a part of the adhesion surface of one of the head unit and the reinforcing plate is opposed to a space and is not adhered to the adhesion su

Abstract: A fluid interconnect for a fluid enclosure includes an overmolded sealing surface of a thermoplastic elastomeric material, the sealing surface having an opening, the sealing surface overmolded upon a thermoplastic surface of a fluid enclosure; and a wall of the thermoplastic elastomeric material connected to the sealing surface, the wall enclosing a pathway, the pathway communicating with the opening at a first end; and a layer connected to the wall, the layer closing the pathway at a second end.

Abstract: A hand-held printer includes an ink supply and a graphical interface configured to display a preview of an image prior to printing and wherein the image preview is displayed on the graphical interface in a color format based on the color capability of the ink supply.

Abstract: An ink cartridge includes an insertion key located on a back edge portion of the ink cartridge, the insertion key being configured to provide a pivotal reference point for insertion of the ink cartridge into the carriage.

Abstract: An ink cartridge includes a case including a front face and a rear face opposite the front face, an ink supply portion positioned at the front face of the case, an air intake portion positioned at the case, and a movable member configured to move between a first position and a second position relative to the case. The ink cartridge also includes a resilient member having a first end which is coupled to the front face of the case and a second end which is coupled to the movable member. Moreover, the resilient member is configured to expand and to contract to move the movable member relative to the case between the first position and the second position.

Abstract: An ink cartridge includes a first signal blocking portion, and a second signal blocking portion, in which a first plane intersects each of the first signal blocking portion and the second signal blocking portion. The ink cartridge also includes a third signal blocking portion, in which a second plane intersects each of the second signal blocking portion and the third signal blocking portion. Moreover, the second plane is perpendicular to the first plane, and the first signal blocking portion and the second signal blocking portion are aligned in a particular direction which is perpendicular to the second plane, and the second signal blocking portion and the third signal blocking portion are unaligned in the particular direction. In addition, each of the first signal blocking portion, the second signal blocking portion, and the third signal blocking portion are configured to either prevent a signal from passing therethrough or to alter a path of the signal.

Abstract: An ink cartridge includes a first signal blocking portion, a second signal blocking portion, and a third signal blocking portion. The first signal blocking portion is configured to either prevent a first signal from passing therethrough or to alter a path of the first signal when the first signal blocking portion receives the first signal, the second signal blocking portion is configured to either prevent a second signal from passing therethrough or to alter a path of the second signal when the second signal blocking portion receives the second signal, and the third signal blocking portion is configured to either prevent the second signal from passing therethrough or to alter a path of the second signal when the third signal blocking portion receives the second signal.

Abstract: An ink cartridge includes a case, an ink supply portion positioned at a front face of the case, a movable member configured to move relative to the case, and at least one resilient member coupled to a rear face of the case and the movable member. The at least one resilient member is configured to expand in an expansion direction and to contract in a contraction direction to move the movable member relative to the case, and a shape of the case in the expansion and contraction directions is unaltered. The entire moveable member is configured to substantially simultaneously move relative to the case when the at least one resilient member expands and contracts.

Abstract: A filter includes a filter plate provided with a through holes formation portion in which a plurality of through holes is formed, a ring-shaped piezoelectric layer arrangement portion on an upper surface of which a piezoelectric layer is formed, and a circular-shaped fixed portion fixed to a tube, an electrode formed almost on an entire area on an upper surface of the piezoelectric layer, and a protective layer covering the piezoelectric layer and the electrode. When a driving electric potential is applied to the electrode, an electric field is generated in the piezoelectric layer, and the piezoelectric layer is contracted to deform the filter plate. With the deformation of the filter plate, the filter vibrates, and it is possible to release impurities and air bubbles in a liquid trapped in the filter. Accordingly, it is possible to realize a long life of the filter.

Abstract: This invention provides an actinic ray curable composition, which exhibits excellent storage stability, low viscosity, high sensitivity and can form cured film having high hardness and superior weather-proofing under various environments particularly even under a high humidity atmosphere, and actinic ray curable ink utilizing the same, an image forming method utilizing said actinic ray curable ink as ink-jet ink, an ink-jet recording apparatus and a new epoxy compound. An actinic ray curable composition of this invention is characterized by containing at least one type of an epoxy compound represented by following Formula (X) and at least one type of an oxetane compound as a photo polymerizable compound and having a viscosity at 25° C. of 1-500 mPa·s.

Abstract: A newsprint medium for inkjet printing includes a newsprint medium base paper and a layer of multivalent salt disposed on at least one side of said base paper.

Abstract: An ink set for inkjet recording is provided that includes at least a colored liquid composition comprising at least a radically polymerizable compound, a photopolymerization initiator, and a colorant, and an undercoat liquid composition comprising at least a radically polymerizable compound and a photopolymerization initiator, the colored liquid composition comprising as the photopolymerization initiator at least one type of ?-aminoacetophenone compound, and the undercoat liquid composition comprising as the photopolymerization initiator at least one type of compound selected from the group consisting of an acylphosphine oxide compound, an ?-hydroxyacetophenone compound, and an oxime ester compound.

Abstract: There are provided a sucking unit having a recording medium transportation surface including a plurality of sucking holes, a decompression chamber communicating with the sucking holes and a sucking device for sucking air in the decompression chamber, and a delivering device for sucking a recording medium supplied onto the recording medium transportation surface of the sucking unit onto the recording medium transportation surface through the sucking hole by the sucking device, and delivering the recording medium from an upstream side of the sucking unit to a downstream side thereof. Each sucking hole of the sucking unit is formed by a through hole section communicating with the decompression chamber and a sucking chamber having a larger area of a sucking surface opposed to the recording medium than a sectional area of the through hole section.

Abstract: An ink jet printer for discharging ink drips to a printing medium mounted on a conveying belt and conveyed from a plurality of nozzles, in which the printing quality is improved and the printed speed is raised. A printing medium conveying section has first and second conveying portions connected in the conveying direction of the printing medium and a plurality of conveying belts are arranged by mutually keeping a predetermined interval, in which the conveying belts of the first and second conveying portions are set so that an other-hand conveying belt is located between one-hand conveying belts, and a printing head is constituted of first head set to a position facing the gap between the conveying belts of the first conveying portion and a second head set to a position facing the gap between the conveying belts of the second conveying portion.

Abstract: An ink jet printer for discharging ink drips to a printing medium mounted on a conveying belt and conveyed from a plurality of nozzles, in which the printing quality is improved and the printed speed is raised. A printing medium conveying section has first and second conveying portions connected in the conveying direction of the printing medium and a plurality of conveying belts are arranged by mutually keeping a predetermined interval, in which the conveying belts of the first and second conveying portions are set so that an other-hand conveying belt is located between one-hand conveying belts, and a printing head is constituted of first head set to a position facing the gap between the conveying belts of the first conveying portion and a second head set to a position facing the gap between the conveying belts of the second conveying portion.

Abstract: An image forming apparatus includes a recording head, a conveyance member, and a guide member. The recording head includes a plurality of head units to discharge liquid droplets onto a recording medium, each of the plurality of head units having a plurality of nozzles through which liquid droplets are discharged. The conveyance member conveys the recording medium in a direction substantially perpendicular to a direction in which the plurality of head units are arranged. The guide member includes a plurality of ribs of at least two, first and second, types having different heights and is disposed opposite the recording head so as to guide the recording medium. The first type of ribs having a height greater than a height of the second type of ribs are disposed opposite areas where the plurality of head units overlap in the arranged direction thereof.

Abstract: An ink-jet printing platen provided in an ink-jet printing device operable to eject droplets of an ink toward a surface of a recording medium for thereby performing a printing operation on the recording medium, the ink-jet printing platen being disposed to support the recording medium in an upward direction, the ink-jet printing platen including a main body having at least one groove through which the ink can flow, and at least one elongate member each accommodated in the corresponding groove and extending along the corresponding groove, wherein the main body has an inner surface which defines the corresponding groove and cooperates with the corresponding elongate member, to define therebetween a gap extending in a longitudinal direction of the corresponding groove.