Seiko Epson Corporation

Hayato Takahashi

Hirotsuna Miura

Nobuaki Kamiyama

Katsuhiko Otani

Kinya Ozawa

Shinri Sakai

A control device for a printer includes a master controller and a slave controller, and the constituent elements of the master controller and the slave controllers are configured symmetrically. The master controller includes a virtual mechanical controller.

Printing control device including virtual drive control unit, printing device including virtual drive control unit, and printing control method utilizing virtual drive control unit

A liquid discharging apparatus includes a liquid discharging section which performs a liquid discharging operation for discharging liquid; and a controller which forms a plurality of images on a medium and also forms coating of the images, by executing a pass which makes the liquid discharging section perform the liquid discharging operation while moving the liquid discharging section in a movement direction, wherein the controller forms a common image portion that is an image site common to each of the plurality of images by a predetermined number of passes and forms respectively a variable image portion that is an image site which differs in each of the plurality of images and the coating of the images by a number of passes smaller than the predetermined number.

Liquid discharging apparatus

A liquid discharging apparatus includes a liquid discharging section which performs a liquid discharging operation for discharging liquid; and a controller which makes the liquid discharging section perform the liquid discharging operation, thereby executing image formation coating processing which forms a plurality of images on a medium and also performs coating of the images.

A writing-back task unit alternately performs writing-back of data of a second storage unit in two storage areas of a non-volatile memory according to a flag value of an updating flag. At this time, a counting process of a counter for obtaining a count value according to written-back data amount is performed. At a power-on time, it is determined whether or not all the counters have writing-back completion values. When all the counters have the writing-back completion values, if the updating flag=1, the data of the first storage area are written in a first storage unit of a RAM. On the other hand, if the updating flag=0, the data of the second storage area are written in the first storage unit of the RAM.

Apparatus for storing and maintaining printing-associated information updated during the operation of the printing apparatus in a non-volatile storage unit

Printing control device including virtual drive control unit, printing device including printing control device, and printing control method utilizing virtual drive control unit

A printer includes an intermediate buffer that holds plain data produced by subjecting print data to extraction processing and microweave processing, and a control buffer that holds head control data produced by subjecting plain data to vertical-horizontal conversion processing. The control buffer is allocated storage capacity that allows it to hold data equivalent to one impression and data equivalent to one-fourth an impression (one pass in printing at four passes per impression).

Liquid ejection control device, liquid ejection device, and liquid ejection control method

A liquid ejecting head includes a first pressure chamber, a second pressure chamber provided at a side of the first pressure chamber, a vibration plate provided above the first pressure chamber and the second pressure chamber, a driving piezoelectric element provided above the first pressure chamber and above the vibration plate, and a non driving piezoelectric element provided above the second pressure chamber and above the vibration plate.

Liquid ejecting head and printer

A droplet discharging head, includes a diaphragm, a fixing plate, and a piezoelectric element. The piezoelectric element includes a first electrode, a second electrode, a piezoelectric body layer interposed between the first and second electrodes, a first internal electrode extending from the first electrode between the first, and second electrodes, and a second internal electrode extending from the second electrode between the first and second electrodes. At least a part of a first end face of the piezoelectric element is in contact with the diaphragm. The first end face includes a first end of the first electrode, a first end of the second electrode, and a first end of the piezoelectric Body. The piezoelectric body layer includes an active layer that overlaps both the first and second internal electrodes, a first inactive layer that overlaps only the first internal electrode, and a second inactive layer that overlaps only the second internal electrode. A thickness of the second inactive layer between the second electrode and the active layer is larger than a thickness of the first inactive layer between the first electrode and the active layer.

Droplet discharging head, image forming apparatus, and film forming apparatus

A droplet discharging head includes a first drive unit and a base coupled to the first drive unit. The base includes a portion defining a first cavity, a portion defining a first discharging port, and a portion defining a first through hole through which the portion defining a first cavity and the portion defining a first discharging port communicate with each other. The droplet discharging head also includes a plurality of first electrode branches and a plurality of second electrode branches. The plurality of first electrode branches and the plurality of second electrode branches are disposed alternately apart from each other on a periphery of the portion defining a first discharging port, and extend on a surface of the portion defining a first through hole.

Droplet discharging head and droplet discharging apparatus

A droplet discharging head includes: a plurality of containing chambers provided in parallel to one another with partition walls interposed therebetween, each containing chamber, partitioned and formed by each partition wall and a member with a vibration plate, being communicated with a nozzle and containing a liquid material; a main piezoelectric element bonded onto an outer surface of the vibration plate of the containing chamber; and a sub-piezoelectric element bonded to a portion corresponding to the partition wall on a side of the main piezoelectric element of the containing chamber. The main piezoelectric element and the sub-piezoelectric element are structured so that one of the main piezoelectric element and the sub-piezoelectric element expands, when the other contracts. The vibration plate is displaced, altering a volume of the containing chamber for a droplet of the liquid material to be discharged from the nozzle. The main piezoelectric element and the sub-piezoelectric element each have a piezoelectric material layer with piezoelectricity having at least one layer, and at least one pair of electrode layers sandwiching the piezoelectric material layer. The piezoelectric material layer and the electrode layers are alternately layered in the thickness direction of the vibration plate. The piezoelectric material layer odd-numbered from a side of the containing chamber in the main piezoelectric element has an opposite polarization direction to that of the piezoelectric material layer odd-numbered from the side of the containing chamber in the sub-piezoelectric element.

Droplet discharging head and droplet discharging device

A device manufacturing apparatus includes a discharge head discharging a droplet containing a functional material, a stage supporting a substrate on which the droplet is discharged, and which is capable of moving relative to the discharge head, a carrier carrying the substrate, a detector detecting a discharge condition of the droplet which is discharged from a discharge nozzle formed in the discharge head, and a controller executing a detection operation by the discharge device during a carrying operation of the substrate.

Device manufacturing apparatus, device manufacturing method, and electronic equipment

A detection apparatus includes a light emitter for emitting a detection light, a receiver for receiving the detection light, and a moving device for moving a discharge head in a direction to intersect the optical path of the detection light. When D is the diameter of a beam of the detection light, d is the diameter of the droplets, L is the distance between the discharge nozzles in the direction of movement of the discharge head, and H is the relative distance that the discharge head moves from when a discharge nozzle discharges one droplet to when the discharge nozzle discharges the next droplet, settings are adjusted so as to satisfy the conditions: D/2+d/2&#x2266;L, and H&#x2266;D.

Growing community of inventors

Chino, Japan

Hayato Takahashi