Abstract: The present invention relates to a printhead for thermal inkjet printing and the printing method thereof. The printhead comprises: a substrate having a plurality of orifices with a firing element in each of said plurality of orifices, wherein said plurality of orifices are arranged in a single column, and said printhead is disposed at an angle to a horizontal direction along which said printhead scans; and a firing circuits for energizing said plurality of firing elements to eject ink on a printing medium by respectively transmitting a plurality of firing signals to said plurality of firing elements. According to the present invention, the print speed and resolution can be improved.

Abstract: A transducer capable of generating vibrational energy is positioned relative to an inkjet cartridge to impart a vibrational force to simultaneously vibrate at least a portion of each of a plurality of ink fluidic columns associated with a plurality of nozzles in a printhead of the inkjet cartridge to maintain or recover nozzle function.

Abstract: An ink jet printhead module including multiple chip control circuits is provided. The ink jet printhead module is capable of receiving multiple address signals and multiple chip selection signals from a printhead drive unit of the printing apparatus. Each of the chip control circuits is capable of receiving the address signals and a corresponding one of the chip selection signals. Each of the chip control circuits includes multiple switching circuits and an ink jetting circuit set. Each of the switching circuits is capable of receiving a corresponding one of the address signals and the corresponding one of the chip selection signals and outputting a switching signal. The ink jetting circuit set includes multiple ink jetting circuits. Each of the ink jetting circuits is capable of receiving the switching signal from the corresponding switching circuit and determining whether or not to jet out ink based on the received switching signal.

Abstract: An ink jet printhead module adapted for use in a printing apparatus, the ink jet printhead module being capable of receiving address signals and chip selection signals from a printhead drive unit of the printing apparatus. The printhead module includes chip control circuits, each being capable of receiving the address signals and receiving a corresponding one of the chip selection signals. Each chip control circuit includes switching circuits and an ink jetting circuit set. Each switching circuit is capable of receiving a corresponding one of the address signals and the corresponding one of chip selection signals and outputting a switching signal. An ink jetting circuit set includes ink jetting circuits, each being capable of receiving the switching signal from the corresponding switching circuit electrically coupled to the ink jetting circuit and determining whether or not to jet out ink based on the received switching signal.

Abstract: An inkjet printing system includes a print head in fluid communication with an ink reservoir and having a plurality of orifices and a corresponding plurality of associated ejection chambers. The print head includes a substrate and a barrier layer disposed on the substrate. The barrier layer defines in part a plurality of fluid channels and the plurality of ejection chambers. The barrier layer includes a material selected from epoxy-based photo resist materials and methyl methacrylate-based photo resist materials. An orifice plate is disposed over the substrate. The orifice plate includes the plurality of orifices in fluid communication with the ejection chambers. The orifice plate comprises a material selected from polyimides and nickel.

Abstract: An inkjet printhead including a substrate, a plurality of heaters, multiple pairs of leads, an ink chamber layer, and a nozzle plate is provided. The substrate has a top surface and a plurality of ink channels through the substrate in the direction substantially vertical to the top surface. The heaters, the multiple pairs of leads, and the ink chamber layer are disposed on the surface of the substrate. The multiple pairs of leads are electrically coupled to the corresponding heaters respectively, and the heaters are respectively adjacent to the corresponding ink channels. The ink chamber layer has a plurality of ink chambers which respectively expose the corresponding heaters and the corresponding ink channels. The nozzle plate is disposed on the ink chamber layer and has a plurality of nozzles through the nozzle plate.

Abstract: A transducer capable of generating vibrational energy is positioned relative to an inkjet cartridge to impart a vibrational force to simultaneously vibrate at least a portion of each of a plurality of ink fluidic columns associated with a plurality of nozzles in a printhead of the inkjet cartridge to maintain or recover nozzle function.

Abstract: A thermal inkjet printhead chip structure includes a substrate, an oxide layer formed on the substrate, at least one driver circuitry each including a source, a drain and a gate and formed on the substrate and further surrounded by the oxide layer, a dielectric layer, a buffer layer, a resistive layer and a conductive layer. The dielectric layer is formed on the driver circuitry and has openings formed therethrough to expose the source and drain. The buffer layer is formed on the dielectric layer, covering the source and drain and connected to the source and drain. The resistive layer is formed on the buffer layer and has at least one heating area. The resistive layer extends above the source and drain and is connected to the source and drain. The conductive layer is formed on the resistive layer and exposes the heating area. A manufacturing method also is provided.

Abstract: An inkjet printhead chip includes a substrate, transistors, isolation structures, a dielectric layer, a resistive layer and conductive sections. Each transistor includes a gate, a source, a drain and a gate oxide disposed between the gate and the substrate. The isolation structures are on the substrate surface and isolate the transistors. The dielectric layer covers the transistors and the isolation structures, and has openings exposed the source and the drain. Several heating regions are in the resistive layer that is on the dielectric layer. In the conductive sections, the first conductive section is on the resistive layer and exposes the heating regions for forming several heating devices. Each heating device has resistance less than 95 ohm and power density less than 2 GW/m2; the second conductive section and the third conductive section are electrically coupled to the drain and the source through the openings of the dielectric layer respectively.

Abstract: An ink jet printhead module including multiple chip control circuits is provided. The ink jet printhead module is capable of receiving multiple address signals and multiple chip selection signals from a printhead drive unit of the printing apparatus. Each of the chip control circuits is capable of receiving the address signals and a corresponding one of the chip selection signals. Each of the chip control circuits includes multiple switching circuits and an ink jetting circuit set. Each of the switching circuits is capable of receiving a corresponding one of the address signals and the corresponding one of the chip selection signals and outputting a switching signal. The ink jetting circuit set includes multiple ink jetting circuits. Each of the ink jetting circuits is capable of receiving the switching signal from the corresponding switching circuit and determining whether or not to jet out ink based on the received switching signal.

Abstract: An ink cartridge is provided with a body, a channel module attached to the body, a plurality of first engaging parts, and a plurality of second engaging parts. The first engaging parts are arranged on one of the body and the channel module, while the second engaging parts corresponding to the first engaging parts are arranged on the other of the body and the channel module. The relative position of the body and the channel module on a two-dimension plane is substantially fixed by the engagement of the first engaging parts and the second engaging parts.

Abstract: An inkjet printhead including a substrate, a plurality of heaters, multiple pairs of leads, an ink chamber layer, and a nozzle plate is provided. The substrate has a top surface and a plurality of ink channels through the substrate in the direction substantially vertical to the top surface. The heaters, the multiple pairs of leads, and the ink chamber layer are disposed on the surface of the substrate. The multiple pairs of leads are electrically coupled to the corresponding heaters respectively, and the heaters are respectively adjacent to the corresponding ink channels. The ink chamber layer has a plurality of ink chambers which respectively expose the corresponding heaters and the corresponding ink channels. The nozzle plate is disposed on the ink chamber layer and has a plurality of nozzles through the nozzle plate.

Abstract: An ink jet printhead control circuit is provided. The ink jet printhead control circuit includes at least a nozzle firing circuit and a nozzle firing control circuit. The nozzle firing circuit includes a switch and a heating resistor. The switch and the heating resistor are coupled in series between a power voltage level and a predetermined voltage level. The nozzle firing control circuit is electrically coupled to the nozzle firing circuit, and receives a selection signal and an address signal. When the address signal and the selection signal are enabled, the nozzle firing circuit is controlled to apply the power voltage level to turn on the switch to drive the heating resistor so that droplets of ink are jetted out.

Abstract: A lead routing module for interconnecting two devices in a suspension assembly. The suspension assembly including at least a suspension, a slider/head assembly, and a lead routing module. The suspension assembly may also include a microactuator. The lead routing module routes electrical signals between at least two devices in the suspension assembly such that the termination leads and/or pads of each device may be conveniently located. The suspension assembly may be used in a disk drive system, or alternatively, in a disk test system used for testing disks.

Abstract: The present invention provides a non-actuatable, self-limiting wear contact pad slider and method for making the same. A protruding element surrounding the transducer is fabricated using a third etch step so that the protruding element has a height that is greater than or equal to the designed fly height of the aerodynamic lift surface minus the disk roughness.

Abstract: A magnetic recording disk drive achieves continuous contact recording with a head-suspension assembly that compensates for the moment generated from an adhesive force between the head carrier or slider and the disk. The slider pivot point, which is the point where the load force is applied to the flexure that supports the slider, is located closer to the front end of the slider than the net force applied by the air-bearing surface of the slider when the disk is rotating at its operational speed. This assures that the net air-bearing force generates a moment about the pivot point to partially counteract the flexure moment and the moment generated from the adhesive force between the disk and the slider's contact pad.

Abstract: A magnetic recording disk drive achieves continuous contact recording with a head-suspension assembly that compensates for the moment generated from an adhesive force between the head carrier or slider and the disk. The slider pivot point, which is the point where the load force is applied to the flexure that supports the slider, is located closer to the front end of the slider than the net force applied by the air-bearing surface of the slider when the disk is rotating at its operational speed. This assures that the net air-bearing force generates a moment about the pivot point to partially counteract the flexure moment and the moment generated from the adhesive force between the disk and the slider's contact pad.

Abstract: The present invention provides a non-actuatable, self-limiting wear contact pad slider and method for making the same. A protruding element surrounding the transducer is fabricated using a third etch step so that the protruding element has a height that is greater than or equal to the designed fly height of the aerodynamic lift surface minus the disk roughness.

Abstract: The present invention provides a non-actuatable, self-limiting wear contact pad slider and method for making the same. A protruding element surrounding the transducer is fabricated using a third etch step so that the protruding element has a height that is greater than or equal to the designed fly height of the aerodynamic lift surface minus the disk roughness.

Abstract: A method and apparatus for providing a low cost contact burnish slider is disclosed that can remain in contact or at the initial low flying heights even as the pad surfaces and leading edges wear. The burnish slider includes a body having a leading edge and a trailing edge and an air bearing surface being configured at the leading edge of the body to cut disk asperities as the slider flies and configured away from the leading edge to maintain a flying attitude wherein the leading edge is near the data recording surface and to provide restoring forces to maintain the flying attitude. The air bearing surface may include a front pad proximal to the leading edge and a rear pad distal to the leading edge. Alternatively, the air bearing surface may include two front pads proximal to the leading edge on opposite sides of the body and two rear pads distal to the leading edge and disposed on opposite sides of the body. The front and rear pad(s) extends substantially across the body of the slider.