A printhead having a number of single-dimensional memristor banks is described. The printhead includes a number of nozzles to deposit an amount of fluid onto a print medium. Each nozzle includes a firing chamber to hold the amount of fluid, an opening to dispense the amount of fluid onto the print medium, and an ejector to eject the amount of fluid through the opening. The printhead also includes a number of single-dimensional memristor banks. Each memristor bank includes a number of memristors arranged in a single dimension and a number of serially-connected de-multiplexers to selectively activate a target memristor of the memristor bank. The number of serially-connected de-multiplexers is equal to the number of memristors and an output of at least one de-multiplexer is an input into a subsequent de-multiplexer.

A liquid discharging head includes a support member and plural print element substrates through which a liquid is discharged. The print element substrates are disposed on the support member and provided with the liquid through a liquid supply channel formed in the support member. The sectional area of the liquid supply channel at a position corresponding to each of the print element substrates is determined in accordance with an order in which the print element substrates are provided with the liquid.

A fluid ejection device includes a fluid slot, a plurality of fluid ejection chambers communicated with the fluid slot, a plurality of drop ejecting elements one of each within one of the fluid ejection chambers, a plurality of fluid circulation channels each communicated with the fluid slot and one or more of the fluid ejection chambers, and a plurality of fluid circulating elements each communicated with one or more of the fluid circulation channels. The fluid circulating elements are to provide intermittent circulation of fluid from the fluid slot through the one or more of the fluid circulation channels and the one or more of the fluid ejection chambers.

A printhead manufacturing method includes preparing a printing element substrate including a receiver, first and second input pads, and plural selection pads, and preparing a head substrate including first and second transmission lines. The receiver includes first and second terminals for receiving signals, and the first and second input pads are connected to the first and second terminals, respectively, and the plural selection pads connected to the second terminal via at least two from among plural resistive elements to selectively obtain one of plural combined resistances. At least one of the plural selection pads is selected to be connected to the first transmission line to obtain a value of the one of the plural combined resistances. The selected selection pad is connected to the first transmission line, the first input pad is connected to the first transmission line, and the second input pad is connected to the second transmission line.

To apply an anti-wetting coating to a substrate of a semiconductor material, a method includes applying to a support a solution of a hydrocarbon comprising at least one unsaturated bond and, optionally, at least one hetero-atom for obtaining a layer of hydrocarbons. The method also includes treating at least one surface of the substrate of the semiconductor material with an acid. The layer of hydrocarbons is transferred from the support to the surface of the substrate of the semiconductor material. The layer of hydrocarbons is chemically coupled with the surface of the substrate of the semiconductor material.

An inkjet head may include a plurality of nozzle holes that is two-dimensionally located in a nozzle formation surface facing a recording surface of a recording medium in a first direction parallel to a main-scanning direction orthogonal to a conveyance direction of the recording medium and in a sub-scanning direction parallel to the conveyance direction of the recording medium. Two nozzle holes that form dots adjacent in the main-scanning direction may be dispersedly located so as not to be adjacent in the sub-scanning direction. The two nozzle holes that form dots adjacent in the main-scanning direction are not separately located at one end and the other end in the sub-scanning direction of the plurality of nozzle holes that is two-dimensionally located.

An inkjet head may include a plurality of nozzle holes that is two-dimensionally located in a nozzle formation surface facing a recording surface of a recording medium in a first direction parallel to a main-scanning direction orthogonal to a conveyance direction of the recording medium and in a sub-scanning direction parallel to the conveyance direction of the recording medium. Two nozzle holes that form dots adjacent in the main-scanning direction may be dispersedly located so as not to be adjacent in the sub-scanning direction. The two nozzle holes that form dots adjacent in the main-scanning direction are not separately located at one end and the other end in the sub-scanning direction of the plurality of nozzle holes that is two-dimensionally located.

An apparatus and method configured to eject an electrically charged liquid. The apparatus and method include a liquid-ejecting apparatus including a reservoir for storing a liquid, an electrically conductive faceplate for ejecting the liquid, a plurality of channels connecting the reservoir to the electrically conductive faceplate, and a voltage source to change and maintain an electric potential difference between the liquid and the electrically conductive faceplate during ejection from the electrically conductive faceplate.

An apparatus and method configured to eject an electrically charged liquid. The apparatus and method include a liquid-ejecting apparatus including a reservoir for storing a liquid, an electrically conductive faceplate for ejecting the liquid, a plurality of channels connecting the reservoir to the electrically conductive faceplate, and a voltage source to change and maintain an electric potential difference between the liquid and the electrically conductive faceplate during ejection from the electrically conductive faceplate.

In an image forming apparatus (an ink jet printer 100), in a sub scanning direction, when an area in arrange of a nozzle at an end portion of a head (41) to a nozzle at a predetermined distance is set as a predetermined area, and a medium is transported in a certain amount by using the head (41), a scan portion, and a transport portion so as to form an image on medium sheet (10), the number of times of scanning for forming a dot array which is formed by using the nozzles included in the predetermined area is more than the number of times of the scanning for forming a dot array which does not use the nozzle in the predetermined area, and the number of times of the scanning for forming the dot array by using the nozzles included in the predetermined area is at least three times.