Drive board, liquid injection head, and liquid injection recording device

Abstract

To provide a driving substrate and the like which can be downsized.SOLUTION: A driving substrate according to one embodiment in the disclosure, which outputs a driving signal that is applied to a liquid jet head having a plurality of nozzles, comprises a plurality of driving devices that generates driving signals for making the nozzles jet liquid. The plurality of nozzles is separated into a plurality of nozzle groups, and the plurality of driving devices generates driving signals that are applied to one or the plurality of nozzles groups respectively. The plurality of driving devices and the plurality of nozzle groups are electrically connected to each other, and the plurality of driving devices is arranged in parallel along a predetermined direction.SELECTED DRAWING: Figure 3

Claims

1. A drive board that outputs a drive signal for use with a liquid injection head having multiple nozzles, The system comprises multiple drive devices that generate the drive signal for ejecting liquid from the nozzle, The aforementioned multiple nozzles are distinguished into multiple nozzle groups, Each of the plurality of drive devices generates the drive signal applied to the corresponding one or more nozzle groups, The plurality of drive devices located within the drive board and the plurality of nozzle groups located outside the drive board are electrically connected to each other via drive wiring. The plurality of drive devices are arranged in a line along a predetermined direction, Multiple wiring patterns related to wiring different from the aforementioned drive wiring are provided within the drive board. The first drive device included in the plurality of drive devices is electrically connected to the wiring pattern corresponding to a single nozzle group to which it is connected, among the plurality of nozzle groups. The second drive device, which is included in the plurality of drive devices, is electrically connected to the wiring patterns corresponding to the plurality of nozzle groups to which it is connected. Drive board.

2. The second drive device is electrically connected to a first wiring pattern and a second wiring pattern, which are the wiring patterns corresponding to the two nozzle groups to which it is connected. The first wiring pattern is electrically connected to one end of the second drive device, The second wiring pattern is electrically connected to the other end of the second drive device. The drive board according to claim 1.

3. The aforementioned multiple drive devices are cascaded to each other via a single group of signal lines. The drive board according to claim 1 or claim 2.

4. A drive board according to any one of claims 1 to 3, A spray unit having a plurality of nozzles that sprays the liquid based on the drive signal output from the drive board, A liquid spray head equipped with a liquid spray head.

5. The liquid injection head is provided as described in claim 4. Liquid injection recording device.

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