Liquid ejection head unit, liquid ejection head module, and liquid ejection apparatus
A liquid ejection head and nozzle technology, applied in printing and other directions, can solve the problems of liquid droplets sticking to the nozzle plate, printing defects, and adhering to the side of the recording head or the nozzle plate, etc.
Inactive Publication Date: 2010-02-03
SEIKO EPSON CORP
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Problems solved by technology
[0007] However, when the wiping member is elastically deformed to cause droplets to splash or the wiping action is fast, even if the wiping member is not elastically deformed, the moment the wiping member is separated from the nozzle forming surface, the droplet will be splashed. In such cases, the entire space around the wiper sheet has to be covered
In addition, when a plurality of recording heads are adjacent to each other, if the liquid droplets splash to the adjacent recording head from the space not covered by the splash prevention plate, it will cause the splashed liquid droplets to adhere to the side surface of the recording head or the nozzle plate. , there may be printing defects caused by defective recording heads or splashed droplets sticking to the nozzle plate
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[0030] Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. Among them, in the embodiments to be discussed below, although various restrictions are carried out as preferred specific examples of the present invention, the scope of the present invention is not limited in the following descriptions unless there is a description that limits the meaning of the present invention. in these forms. Here, in this embodiment, an image forming apparatus that is one form of a liquid ejecting device is specifically equipped with a nozzle opening group that is arranged at equal intervals to match the maximum recording width of the recording paper that is the ejection target (or recording medium). An inkjet printer (hereinafter simply referred to as a printer) having a long liquid jet head (hereinafter referred to as a line head) having a considerable length will be described as an example.
[0031] figure 1 It is a partially cu...
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The present invention provides a liquid ejection head unit, a liquid ejection head module and a liquid ejection apparatus capable of preventing droplets from splashing when wiping. In a liquid ejection head unit (3)for keeping a unit head (11) capable of ejecting water from a nozzle opening on a base (27), according to a contact and slide mode of leading a nozzle formation surface (44a) of the liquid ejection head relative to a wiping member (46) so as to wipe the nozzle formation surface. An adhesion prevention plate (29) is provided in the carriage on the downstream side in the wiping direction of the liquid ejection head.
Description
technical field [0001] The present invention relates to a liquid ejection head unit having a liquid ejection head such as an inkjet recording head, a liquid ejection head module, and a liquid ejection device, and more particularly, to a liquid ejection head, a liquid ejection head module, and a liquid ejection device capable of preventing splashing of liquid droplets during wiping . Background technique [0002] As a liquid ejection head unit that ejects (ejects) liquid droplets from nozzle openings by changing the pressure of the liquid in the pressure generating chamber, there are, for example, those used in image recording apparatuses such as inkjet recording apparatuses (hereinafter simply referred to as printers). Ink-type recording head (hereinafter simply referred to as recording head), color material injection head used in the manufacture of color filters such as liquid crystal displays, organic EL (Electro Luminescence) displays, FED (surface emission display) and o...
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IPC IPC(8): B41J2/135B41J2/165
CPCB41J2/16585
Inventor 川本诚小林欣弘三桥将人
Owner SEIKO EPSON CORP