36 results about "Recording head" patented technology

Embodiments of the invention provide a write head for perpendicular recording in which the magnetic field intensity applied at a read element is reduced with larger write-field gradients and the distance between a write element and a read element is small. In one embodiment, a pair of magnetic bodies for shielding a read element are provided on the leading and trailing sides of the read element respectively and whichever one of the two shields is the longer in the length from the air bearing surface is shorter than the length up to the back contact position PBK at which a main pole and an auxiliary pole are connected.

This technology can help reduce the increase in discarded ink. [Solution] The recording head is provided with a first discharge port capable of discharging a first ink and a second discharge port capable of discharging a second ink; a cap that contacts the discharge port surface on which the first and second discharge ports are formed and covers the area including the first and second discharge ports; a suction means for reducing the pressure inside the cap; an discharge control means that, with the cap in contact with the discharge port surface, generates negative pressure inside the cap using the suction means to discharge ink into the cap from each discharge port; and, when the discharge of ink by the discharge control means is performed, an ejection control means that first discharges the first ink into the cap by performing a preliminary discharge from the first discharge port, and then first discharges the second ink into the cap by performing a preliminary discharge from the second discharge port.

This invention provides an inkjet recording method that enables the recording of images with minimal misalignment of grid lines, even when recording images using a recording head having overlapping sections where the end ejection ports of adjacent ejection port rows overlap. [Solution] An inkjet recording method comprising the step of discharging aqueous ink from end discharge ports constituting an overlapping portion, allocated to a first discharge port row and a second discharge port row, to record an image on a recording medium, wherein the viscosity of the aqueous ink is 4.0 mPa·s or more, and the water-soluble organic solvent contains a water-soluble organic solvent (A) with a vapor pressure of 0.030 Pa or more and 0.200 Pa or less at 25°C, and a water-soluble organic solvent (B) with a vapor pressure of 1.000 Pa or more at 25°C, wherein the content (mass%) of water-soluble organic solvent (A) is 0.30 times or more by mass ratio to the content (mass%) of water-soluble organic solvent (B).

Configuring the recording head to be movable in the direction of platen gap adjustment while also incorporating a mechanism to adjust the posture of the recording head would lead to increased costs and a larger size for the device. [Solution] The guide frame comprises a first guide portion that guides the recording unit along a first axis, and a second guide portion that is spaced apart from the first guide portion in the width direction, which is the direction intersecting the media transport direction at a position opposite to the recording portion, and which guides the recording unit along the first axis. The recording unit comprises a first guided portion guided by the first guide portion, and a second guided portion guided by the second guide portion, the second guided portion also serving as a rotation mechanism that rotates the recording unit with the first guide portion as a pivot point when viewed from the first axis.

This invention provides a means for accurately determining the amount of waste liquid held by a waste liquid cartridge. [Solution] The controller 50 performs a purging process to discharge ink from the recording head 34 to the cap 71, a process to determine the amount of waste liquid discharged from the recording head 34 by the purging process, and, after the purging process, at predetermined intervals, adds a partial waste liquid amount, which is a part of the total waste liquid amount, to the amount of waste liquid already discharged to the waste liquid cartridge 74 and writes it to the cartridge memory 75.

An inkjet recording apparatus includes a recording head, a blade, and a cleaning liquid supply member. The head unit is provided with a nozzle surface. The cleaning liquid supply member includes a supply port, a sheet member, and a holder. When the cleaning liquid supply member is moved to a supply position and then the recording head is lowered, a tip end of the sheet member comes into contact with the nozzle surface, and then the cleaning liquid supply member is turned from an inclined posture to a supply posture while the tip end of the sheet member is moved along the nozzle surface forward in the moving direction, and the sheet member is disposed between the supply port and the nozzle surface.

Provided is an aqueous ink which is capable of suppressing deterioration of filterability even when microorganisms are present in the aqueous ink, and which has good ejection stability by a recording head even when applied to an inkjet aqueous ink.　Specifically provided is an aqueous ink which contains a coloring material, a quorum sensing (QS) inhibitor, and water. The QS inhibitor is at least one compound that is selected from the group consisting of aromatic amide compounds, furanone compounds, phenol compounds, histidine compounds, pyrimidine compounds, sugar ester compounds, lactam compounds, thiohydantoin compounds, and thiazolidinedione compounds. The QS inhibitor has a common logarithm Log S of the solubility in water at 25°C of -2.2 or more. The content of water in the ink is 50.00 mass% or more based on the total mass of the aqueous ink.

This printer 10 comprises: a placement table 20 on which a medium 5 is placed; a recording head 40 provided above the placement table 20; a first moving device 25Z that moves the placement table 20 in a vertical direction Z; a non-contact sensor 70 that detects, without physical contact, the position in the vertical direction Z of a medium 5 placed on the placement table 20; a contact sensor 80 that is provided with a contact part 81, which comes into contact with the medium 5, and that detects the position in the vertical direction Z of the medium 5 by detecting the contact of the medium 5 with the contact part 81; and a control device 100. The control device 100 raises the placement table 20 until the medium 5 reaches a lower control position Pl set below the contact part 81 on the basis of the detection of the non-contact sensor 70, and then raises the placement table 20 until the medium 5 comes into contact with the contact part 81 on the basis of the detection of the contact sensor 80.

The inkjet recording apparatus includes a recording head, a cleaning member, a container member which, by being pressed from above to below, is displaced from a first position to a second position and which, while in the second position, accepts supply of detergent, and a supply member which is placed above the container member to supply the container member with the detergent. The container member includes a containing part for accepting supply of the detergent, and a base part which adjoins the containing part in a first direction perpendicular to an up / down direction. The supply member presses the base part from above to below without making contact with the containing part so that the container member is displaced from the first position to the second position.

An inkjet recording apparatus of the present application is provided with a recording head, an ink container, an ink supply section, a driving mechanism, a timer, a start position sensing section, and a control section. The ink supply section includes a sub-tank, an ink flow path, and a syringe pump having a cylinder and a piston. The control section, when performing a purging operation using the syringe pump, after performing a press operation on the piston located at the start position by a preset set press amount, measures a movement time from the start of the stretching operation to the arrival at the start position by the timer, and in the case where the movement time is shorter than a threshold value, determines that an abnormality has occurred in the ink supply section.

Disclosed is a recording apparatus including a tank configured to store liquid to be supplied to a recording head that ejects the liquid, the tank including an inlet port for liquid injection; a cap unit including a shaft portion and a cap configured to turn about the shaft portion between a first position at which the cap caps the inlet port and a second position at which the cap does not cap the inlet port, the shaft portion being provided to a housing that encloses the tank; and a biasing unit configured to bias the cap unit in a direction to move the cap apart from the inlet port, wherein the cap unit does not move at the second position while being biased by the biasing unit.

This invention discloses a recording device. The recording device includes: a delivery unit for conveying a recording medium toward a recording head for ejecting liquid in a first direction; a housing including a receiving chamber for receiving liquid to be supplied to the recording head and an injection port through which liquid is injected into the receiving chamber, the housing being arranged downstream of the delivery unit in the first direction; a rotatable lever holding a cap for closing the injection port; and a cover rotating about a rotation axis between an open position for exposing the lever and a closed position for covering the lever, the rotation axis being arranged upstream of the delivery unit in the first direction. The cover includes a sliding portion disposed on a surface facing the lever and contacting the lever when the cover is rotated toward the closed position.

The present application provides a recording device and a recording method, in order to inhibit the color inversion unevenness and have the improvement margin. The recording device has a longitudinal arrangement type recording head, in the case of performing multiple main scans to the tape area of the medium through the forward scan of the recording head, the sub-scan and the return scan of the recording head to record the image, the following first recording control is performed: the second nozzle group corresponding to the first color among the multiple colored liquid with the lowest ejection ratio for recording the image is set as the first range with the range of the first nozzle adjacent in the second direction in the first nozzle group, the second nozzle group corresponding to the color other than the first color among the multiple colors is set as the second range with the range of the first nozzle adjacent in the second direction in the first nozzle group, the ejection ratio of the colorless liquid in the first range for recording the image is higher than the ejection ratio of the colorless liquid in any second range for recording the image.

This technology offers advantages in further improving the quality of recordings. [Solution] The recording device according to the present invention comprises a recording head that performs recording by ejecting ink, and a circulation mechanism that circulates ink in an ink circulation channel that passes through the recording head, further comprising a selection means for determining the ejection speed of ink droplets from the recording head, and a control means for controlling the drive of the circulation mechanism based on the selection result of the selection means.

The present invention provides a recording device that shortens the cable wiring within the device. The recording device (10) includes: a recording unit (18) for recording a medium; a head control unit (90) for controlling the recording unit (18); a frame (101) located between the recording unit (18) and the head control unit (90) and dividing the arrangement area of ​​the recording unit (18) and the arrangement area of ​​the head control unit (90); a first cable (111) for electrically connecting the recording unit (18) and the head control unit (90), the head control unit (90) being mounted on the frame (101), the head control unit (90) having a first substrate (91) and a second substrate (92), wherein at least a portion of the surface (93) of the first substrate (91) and the surface (93) of the second substrate (92) are opposite each other.

Aspects of the disclosure generally relate to a magnetic recording head of a magnetic media drive. In one example, the magnetic recording head includes a main pole, a back shield, and a spintronic device disposed between the main pole and the back shield. The spintronic device includes a negative polarization layer (NPL) disposed on the main pole, the NPL including FeTi, FeV, FeCr, or FeN; an interface layer disposed on the NPL, the interface layer including V, Cr, or Ru; a spacer layer disposed on the interface layer; and a spin torque layer (FGL) disposed on the spacer layer. When a current is applied to the spintronic device, the NPL and a first interface disposed between the NPL and the interface layer have a negative spin polarization, while the FGL and a second interface disposed between the FGL and the spacer layer have a positive spin polarization.

The present invention relates to a recording apparatus that suppresses attachment of ink mist to a scale of a linear encoder. The recording apparatus (1) includes: a medium (M) conveying section (29); a recording head (27) that ejects ink toward the medium (M) to perform recording; a carriage (26) that carries the recording head (27) and reciprocally moves in a scanning direction; an air blowing section (101) that blows air toward the recording head (27); a detection section (110) that is located upstream of the carriage (26) in a conveying direction (A) and is located between the air blowing section (101) and the recording head (27) in an air blowing direction (F) in which air is blown by the air blowing section (101), and that detects a position of the carriage (26) in the scanning direction; a housing (12); and a cover (100) that covers a linear encoder scale (111) of the detection section (110) to shield the blowing by the air blowing section (101).

A recording apparatus includes a conveyance unit for a medium, a recording head that performs recording by ejecting ink onto the medium, a carriage on which the recording head is mounted and which reciprocates in a scanning direction, a blower unit that sends air toward the recording head, a detection unit that is located upstream in a conveyance direction of the carriage and between the blower unit and the recording head in a blowing direction of air by the blower unit and detects a position of the carriage in the scanning direction, a housing, and a cover that covers a linear encoder scale of the detection unit so as to block air blow by the blower unit.

Provided is an ink jet recording method which can record an image excellent in abrasion resistance and in which an ink after storage is excellent in filter passability. The ink jet recording method includes ejecting an aqueous ink to a recording medium to record an image with an ink jet recording apparatus including: the aqueous ink; an ink storage bag configured to store the aqueous ink; and a recording head of an ink jet system configured to eject the aqueous ink. The recording head includes, in an inside thereof, a filter configured to pass the aqueous ink therethrough. The aqueous ink contains a pigment, a wax, a dispersant for dispersing the wax and a resin particle.

This invention provides an inkjet recording method that enables more efficient recording of images with excellent opacity and scratch resistance, even when heated at low temperatures for a short time. [Solution] An inkjet recording method comprising the step of ejecting aqueous ink from an inkjet recording head and applying it to a recording medium. The aqueous ink is a white ink containing metal oxide particles, first resin particles, and second resin particles formed of crystalline resin, the glass transition temperature of the first resin particles is 50°C or higher, the onset temperature To(°C) of the maximum endothermic peak of the second resin particles is 50°C or higher and 80°C or lower, the endset temperature Te(°C) and onset temperature To(°C) of the maximum endothermic peak of the second resin particles satisfy the relationship in formula (1) below, and further comprising the step of heating the recording medium to which the aqueous ink has been applied to a temperature of To(°C) or higher than the onset temperature of the second resin particles. Te ≤ (To + 20) ... (1)

An image-forming apparatus includes a liquid container, a joint, a branching portion, a plurality of tubes, and a recording head. The liquid container has a first storage chamber, and a supply opening through which the first storage chamber is communicable with atmosphere. The joint is connectable to the supply opening of the liquid container. The branching portion is connected to the joint and is branched into a plurality of liquid channels. Each tube is connected to a corresponding one of the plurality of liquid channels. The recording head includes a plurality of nozzle arrays, and each nozzle array is connected to a corresponding one of the plurality of tubes. The recording head is configured to eject the liquid through each nozzle arrays.

The ability to accurately obtain the amount of deviation in the rotation direction (θ) of the ejection nozzle of a recording head that ejects ink with low contrast. [Solution] A recording device that records an image on a recording medium while scanning a first recording head having a plurality of first nozzles arranged to eject a first ink and a second recording head having a plurality of second nozzles arranged to eject a second ink with a lower density than the first ink, provides a method for obtaining a correction value to correct the rotational ejection position misalignment of the second recording head, comprising: a recording step of scanning the first recording head and the second recording head and recording a predetermined correction pattern on the recording medium; a step of obtaining the amount of rotational ejection position misalignment of the second recording head by detecting the correction pattern while scanning an optical sensor; and a step of deriving a correction value to correct the rotational ejection position misalignment of the second recording head based on the amount of misalignment, thereby enabling accurate acquisition of the rotational misalignment of the ejection nozzles.

The present invention provides an inkjet recording device that suppresses ink transfer to subsequent printed materials even if ink adheres to the transport roller pair, thereby avoiding a decrease in image quality. [Solution] An inkjet recording apparatus that forms an image on a recording medium by ejecting aqueous ink from a recording head onto the recording medium being transported along a predetermined transport direction, comprising a plurality of transport roller pairs provided after means for supplying thermal energy to the image-formed recording medium, which transport the image-formed recording medium by rotating in a certain direction while holding the image-formed recording medium, and wherein at least one of the transport roller pairs, the roller positioned on the image-forming surface, is provided with an ink coagulation member on at least a portion of its surface that contacts the aqueous ink to coagulate the aqueous ink.

According to an embodiment, a control method for a heat-assisted magnetic recording and reproducing device including a heat-assisted magnetic recording head including a main pole, a near-field transducer generating near-field light, a waveguide propagating light to the near-field transducer, and a laser light source supplying light to the waveguide, and a heat-assisted magnetic recording medium that has a lubricant layer on a recording surface opposing the head, includes irradiating the near-field light on the medium with a second laser current value set lower than a first laser current value at a time of write, and operating the head, thereby performing a smoothing process on the surface of the lubricant layer.

If recording is performed on a media that is wrinkled, it may result in a decrease in the image quality of the recorded image or a malfunction of the recording head. [Solution] The system comprises a transport roller pair 10 having a main roller 14 that transports the medium M in the transport direction F, and a plurality of sub-rollers 16 that are spaced apart along the width direction H intersecting the transport direction F and that sandwich the medium M between themselves and the main roller 14; a recording head 5A that records on the medium M; a guide roller 11 that is positioned downstream of the transport roller pair 10 in the transport direction F and applies tension to the medium M; and a light source unit 20 that can irradiate the surface area SA of the medium M, which is transported through the air between the transport roller pair 10 and the guide roller 11, with the luminous intensity of the visible light L irradiated from the light source unit 20 to the surface area SA in the width direction H being higher than the luminous intensity in the transport direction F.

To provide a technique capable of inspecting discharge energy of liquid without discharging liquid from a liquid discharge head without changing electrical wiring of a discharge element substrate in a liquid discharge head.SOLUTION: A liquid discharge head being an inspection object of discharge energy includes a discharge element substrate. The discharge element substrate comprises: a substrate; a heating part which has an electrothermal conversion body of the substrate; a protection film which covers the electrothermal conversion body; and an organic layer which covers the electrothermal conversion body and the protection film. An inspection method executes: a first step of obtaining as a first measurement result an electric resistance value of the electrothermal conversion body with respect to the liquid discharge head; a second step of obtaining as a second measurement result the film thickness of a film thickness measurement unit 501 from which the protection film appears on the discharge element substrate; and a third step of acquiring information on discharge energy required for discharging liquid from a discharge port 400 on the basis of the first measurement result and the second measurement result.SELECTED DRAWING: Figure 4

This water-based ink can suppress the decrease in filterability even when microorganisms are present in the water-based ink, and also provides a water-based ink that exhibits good ejection stability by the recording head when applied to water-based inkjet inks. [Solution] The invention provides an aqueous ink containing a colorant, a quorum sensing (QS) inhibitor, and water. The QS inhibitor is at least one selected from the group consisting of aromatic amide compounds, furanone compounds, phenol compounds, histidine compounds, pyrimidine compounds, sugar ester compounds, lactam compounds, thiohydantoin compounds, and thiazolidinedione compounds. Furthermore, the common logarithm LogS of the solubility of the QS inhibitor in water at 25°C is -2.2 or higher. The water content in the ink is 50.00% by mass or more, based on the total mass of the aqueous ink.

An inkjet recording includes a conveyance path that conveys a recording medium, a recording head, at least one humidity measuring part, and at least one humidifying air supplying part. The recording head discharges ink onto the recording medium conveyed along the conveyance path. At least one humidity measuring part measures humidity in the vicinity of the recording head. At least one humidifying air supplying part supplies humidifying air to the conveyance path. When the humidity measured by the humidity measuring part is equal to or less than a predetermined humidity threshold value, inkjet recording apparatus supplies the humidified air by the humidified air supplying part.

A servo pattern recording head includes: a plurality of head cores that are magnetically separated from each other; and a plurality of gap patterns that are formed on a front surface of each of the plurality of head cores and that are used for recording a plurality of servo patterns in a width direction of a magnetic tape by applying a magnetic field to the magnetic tape in response to a pulse current, in which the plurality of gap patterns are formed on the front surface along a direction corresponding to the width direction, and the plurality of gap patterns deviate from each other at a predetermined interval in a direction corresponding to a longitudinal direction of the magnetic tape between the gap patterns adjacent to each other along the direction corresponding to the width direction.

The present embodiments relate to a perpendicular magnetic recording (PMR) write head with an STO element and configured to direct an electric current between elements of the write head. A first example embodiment describes a perpendicular magnetic recording (PMR) write head. The PMR write head can include a main pole comprising a tip portion disposed adjacent to an air bearing surface (ABS) and is configured to interact with a magnetic recording medium. The PMR write head can also include a spin torque oscillator (STO) element disposed adjacent to the main pole. The PMR write head can also include a side shield layer with a portion of the side shield layer disposed adjacent to the ABS. The PMR write head can also include a metallic side gap layer disposed between the main pole and the side shield layer.