Seiko Epson Corporation

Yoshihisa Saka

Yujiro Nomura

Kazuto Yoshimura

Atsushi Imamura

Yoshinobu Goto

Masaki Shimomura

Tetsuji Yatsunami

Yuji Miyamoto

Yoshikane Tsuchihashi

Atsushi Takei

Takao Oizumi

Kohei Usuda

Yoshinori Yanagisawa

A liquid ejecting device includes: a printing unit including a liquid ejecting head configured to eject a liquid to a medium and a head holder configured to form an air cooling path, and a cooling mechanism configured to cause air in the air cooling path to flow therethrough to air-cool the liquid ejecting head, wherein the printing unit is provided so as to be movable with respect to a transport path along which the medium is transported, the cooling mechanism includes a first air hole and a second air hole that are configured to be coupled to the air cooling path, and the air cooling path is coupled to one of the first air hole and the second air hole corresponding to a position of the printing unit.

Liquid ejecting device

A medium transporting apparatus includes a first medium transport path in which a transport roller pair is provided, a second medium transport path for feeding a medium fed downstream in a medium transport direction from the transport roller pair to an upstream position of the transport roller pair in the first medium transport path, and a medium detection unit for detecting passage of a medium in the first medium transport path, in which a position at which the medium detection unit detects a medium is switched between a transport direction upstream position and a transport direction downstream position of the transport roller pair according to whether or not a medium is transported on the second medium transport path.

Medium transporting apparatus and image reading apparatus

A medium processing device includes a processor, a feed roller, a motor, a motive force transmission gear that transmits motive force of the motor to the feed roller, a switching unit that is configured including a main gear and a sub gear that meshes with the main gear and moves in planetary motion around the main gear, and that switches accompanying rotation direction switching of the main gear between a meshed state and a disengaged state between the sub gear and the motive force transmission gear, a load detection unit that detects load of the motor, and a controller. The controller controls the motor and the processor according to the load detected by the load detection unit at switching of the sub gear from the disengaged state to the meshed state.

Medium processing device

A mounting portion in which a first ink cartridge can be mounted, and a first mounting detection portion that can detect that the first ink cartridge is mounted in the mounting portion are included, and the first mounting detection portion can detect that a mounting unit in which a second ink cartridge can be mounted is mounted in the mounting portion.

Inkjet printing apparatus and ink cartridge mounting unit

There is provided a printer including: a recording head which performs recording by ejecting ink; a recording unit which stores the recording head; a liquid storage unit which is provided outside the recording unit, and stores a liquid storage body that stores the ink to be ejected from the recording head; ink supply tubes which supply the ink that is stored in the liquid storage body stored in the liquid storage unit to the recording head; and a supporting portion which is provided in the liquid storage unit, and supports the ink supply tubes. As a mark which is a reference of a part supported by the supporting portion, a line is provided in the ink supply tubes.

Recording apparatus

Fingers for holding a target project from shift members, and shift in accordance with the movement of the shift members shifted in predetermined axial directions by a shift mechanism to hold the target. Sliding members for shifting the shift members in the predetermined axial directions project from the shift members, and guide the shift members by sliding. According to this structure, a robot hand becomes smaller in size by decreasing the clearances between the fingers (moving the shift members closer to each other). Thus, the robot hand can hold a small target object within a small work space even though the robot hand conducts a parallel shift of the fingers.

Robot hand, robot, and holding mechanism

An image forming apparatus including: an image bearing belt that bears an image; an image creation unit that transfers the image on the image bearing belt; a first driving source; a driving roller that is rotationally driven by the first driving source and causes the image bearing belt to move; a transfer roller that has a concaved portion in a circumferential surface, forms a transfer nip by the transfer roller making contact with the image bearing belt, and transfers the image on the image bearing belt to a recording material; a second driving source that rotationally drives the transfer roller; a material type determination unit that determines a type of the recording material; and a control unit that controls a rotational frequency of the transfer roller when the recording material is nipped by the transfer nip based on information of the type determined by the material type determination unit.

Image forming apparatus and image forming method

An image forming apparatus includes an image carrier which carries an image and a transfer roller including a roller base material which faces the image carrier and rotates. A concave portion is positioned on a peripheral surface of the roller base material. A grip unit on the concave portion grips a recording medium. An elastic layer is disposed on a peripheral surface of the roller base material. The transfer roller passes the recording medium through a nip between the image carrier and the elastic layer which comes into contact with the image carrier via the image carrier and the recording medium to transfer the image carried on the image carrier onto the recording medium. A roller driving unit rotates the roller base material. A control unit controls the roller driving unit and causes the concave portion to face the image carrier to stop the transfer roller.

Image forming apparatus including a gripping unit

An image forming apparatus including: an image carrier that has a belt-like shape and carries an image; an image forming section that forms the image on the image carrier; a driving roller around which the image carrier is looped, the driving roller being rotationally driven by a first driving source to drive the image carrier; a roller around which the image carrier is looped; a transfer roller having a partially hollow peripheral surface and being rotationally driven by a second driving source, the transfer roller abutting on the image carrier to form a transfer nip at a position at which the image carrier is looped around the roller; a first tension roller that abuts on the image carrier between a position of the driving roller and a position of the roller to adjust a tensile force of the image carrier; and a second tension roller that abuts on the image carrier to adjust a tensile force of the image carrier, the second tension roller abutting on the image carrier on an abutting position opposite to that of the first tension roller so as to interpose the transfer nip between the first and second tension rollers.

Image forming apparatus and transfer apparatus

A transfer device includes: a transfer belt hung around a roller; and a transfer belt sealing member in contact with a transfer surface and a circumferential end surface of the transfer belt and in contact with the circumferential end surface of the transfer belt diagonally relative to a thickness direction of the transfer belt.

Transfer device and image forming apparatus with sealing member in contact with transfer belt

An image forming apparatus includes an image carrier which moves while carrying an image and a transfer roller including a roller base material which faces the image carrier and rotates. A concave portion is positioned on a peripheral surface of the roller base material. A grip unit on the concave portion grips a recording medium. An elastic layer is disposed on a peripheral surface of the roller base material. The transfer roller grips a recording medium by the grip unit when the concave portion faces the image carrier and passes the recording medium through a nip between the image carrier and the elastic layer when facing each other so that the image carried on the image carrier is transferred on the recording medium. A roller driving unit rotates the roller base material. A control unit controls the roller driving unit to adjust a timing for forming the nip.

Device and method for forming a nip in an image forming apparatus

A transfer device has a cleaning arrangement for preventing any leakage of the toner and the liquid carrier remaining on a transfer belt. The transfer device includes a transfer belt onto which liquid developer images are transferred, the transfer belt being wound around a roller having an axial length of L, a transfer belt cleaning blade to be brought into contact with the roller by way of the transfer belt, the transfer belt cleaning blade having a length Lin the axial direction of the roller, and cleaning blade seal members arranged at the opposite lateral ends of the transfer belt cleaning blade in the axial direction of the roller and having a length of L. The lengths of these members have the relationships of L&#x3e;Land L&#x3c;L+2L

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Shiojiri, Japan

Yoshihisa Saka