Abstract: An inkjet chip including a substrate, a plurality of control elements, an insulating layer, a plurality of first conductive patterns, a plurality of second conductive patterns and a plurality of heaters is provided. The insulating layer is disposed on the control element and has a plurality of openings. The openings each have a first length in a first direction. Each first conductive pattern has a first sidewall overlapping one of the openings and is electrically connected between one of the control elements and one of the heaters. Each second conductive pattern has a second sidewall overlapping the one of the openings and is electrically connected to one of the heaters. A distance in the first direction is included between the first sidewall and the second sidewall opposing to each other. The distance is less than the first length. A thermal bubble inkjet printhead adopting the inkjet chip is also provided.

Abstract: A thermal bubble inkjet printhead including a substrate, a plurality of control elements, a plurality of heaters, an ink barrier and a nozzle plate is provided. The control elements are disposed on the substrate. The heaters are electrically connected to the control elements. The material of the heaters is a transparent conductive material. The ink barrier is disposed on the heater and has a plurality of ink chambers. Each of the ink chambers overlaps one of the heaters. The nozzle plate is disposed on the ink barrier and has a plurality of nozzles. Each nozzle overlaps one of the ink chambers.

Abstract: An inkjet chip including a substrate, a plurality of control elements, an insulating layer, a plurality of first conductive patterns, a plurality of second conductive patterns and a plurality of heaters is provided. The insulating layer is disposed on the control element and has a plurality of openings. The openings each have a first length in a first direction. Each first conductive pattern has a first sidewall overlapping one of the openings and is electrically connected between one of the control elements and one of the heaters. Each second conductive pattern has a second sidewall overlapping the one of the openings and is electrically connected to one of the heaters. A distance in the first direction is included between the first sidewall and the second sidewall opposing to each other. The distance is less than the first length. A thermal bubble inkjet printhead adopting the inkjet chip is also provided.

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 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 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 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 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 printer includes a printhead drive unit and a cartridge. The cartridge includes the printhead controller. The printhead controller includes a plurality of inverters connected in series to constitute a operation circuit for receiving one or more control signals to control the enable status of the nozzle in order to determine whether to jet out the ink.

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 jet printer comprises a printhead drive unit and a cartridge. The cartridge includes the printhead controller. The printhead controller includes a plurality of inverters connected in series to constitute a buffer circuit for receiving one or more control signals to control the enable status of the nozzle in order to determine whether to jet out the ink.

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 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 ink jet printer includes a printhead drive unit and a cartridge. The cartridge includes the printhead controller. The printhead controller includes a plurality of inverters connected in series to constitute a circuit for receiving one or more control signals to control the enable status of the nozzle in order to determine whether to jet out the ink.

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: An inkjet printer identification circuit is provided. It includes a plurality of control lines, a control circuit providing a control signal to the plurality of control lines, and an identification module including an identification unit. The identification unit includes at least a control input terminal, an output terminal and at least a data input terminal. The data input terminal is coupled to a memory unit. The control input terminal is coupled to one of the plurality of control lines. The identification unit is responsive to the control signal for determining and outputting a content stored in the memory unit via the output terminal. The control circuit identifies the status of the identification unit based on the received content stored in the memory unit.

Abstract: An ink storage unit comprises an ink tank that defines an inner confinement space in which is placed an ink storage body to store and retain ink. The ink tank includes an air inlet through which air passage in the ink tank is enabled, and an ink outlet through which ink output is achieved. An outer surface of the ink storage body includes a plurality of notches distributed along an interface between the ink storage body and the ink tank, thereby forming a plurality of gaps that locally separate the outer surface of the ink storage body from the sidewall of the ink tank. Alternatively, the ink storage body is comprised of a first ink storage portion that is separated from a second ink storage portion via a spacing member. Ink flowing and leakage through the air inlet is thereby prevented.

Abstract: A service station for cleaning and sealing the print head of a print module in a printing system is provided. The service station comprises a base, a first direction-changing mechanism, a first moving mechanism and a wiper. The print module drives the first direction-changing mechanism, which drives the first moving mechanism and hence the wiper to clean up the print head. Furthermore, the service station comprises a second direction-changing mechanism, a second moving mechanism and a cap. The print module drives the second direction-changing mechanism, which drives the second moving mechanism and hence the cap to seal the print head.