Seiko Epson Corporation

Atsushi Majima

Kohei Yuwaki

Taki Hashimoto

Eiji Kumai

Seijun Horie

Osamu Hara

Teruhiko Wakabayashi

This three dimensional molding device includes a plasticizing section having a screw in which a groove is formed and generating a plasticized material by plasticizing a material by rotating the screw; a nozzle having a nozzle opening and ejecting the plasticized material; an ejection adjustment section provided in a flow path, which communicates with the nozzle opening, and adjusting an ejecting amount of the plasticized material from the nozzle by adjusting an opening area of the flow path; and a control section, wherein the control section controls a rotation speed of the screw at a first rotation speed when the opening area is a first opening area and controls the rotation speed of the screw at a second rotation speed that is faster than the first rotation speed when the opening area is a second opening area that is larger than the first opening area.

Three dimensional molding device

A three-dimensional shaping device includes a plasticization unit configured to plasticize a material into a shaping material using a rotating screw; a drive unit configured to rotate the screw; a supply flow path through which the shaping material flows; a nozzle configured to discharge the shaping material; a discharge amount adjusting mechanism configured to switch between stop and restart of discharge of the shaping material from the nozzle by a valve portion provided in the supply flow path; a pressure measuring portion configured to measure a pressure of the shaping material in the supply flow path between the plasticization unit and the valve portion; and a control unit configured to adjust rotation of the screw by controlling the drive unit according to a measured value of the pressure which is measured. The control unit controls the drive unit under a first control during a period when the discharge of the shaping material from the nozzle is not stopped, and controls the drive unit under a second control during a period when the discharge of the shaping material from the nozzle is stopped, and a degree of adjustment of the rotation of the screw under the second control is smaller than a degree of adjustment of the rotation of the screw under the first control.

Three-dimensional shaping device and method for manufacturing three-dimensional shaped object

A printing apparatus includes a printing unit that prints on a roll paper, a transporting unit that transports the roll paper having been printed on along a transport surface, and a drying unit that performs a drying process (post-process) on the roll paper on the transport surface. The drying unit includes a cover (casing) that covers the roll paper on the transport surface. The cover has an inspection window that allows the roll paper on the transport surface to be visually inspected.

Printing apparatus

A medium holding member that is attached to a medium supporting portion includes a fitting portion that is fit into the medium supporting portion and that is located at each of at least one portion in an upstream side edge portion of the medium holding member in a medium transportation direction.

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Matsumoto, Japan

Atsushi Majima