Seiko Epson Corporation

Shinko Electric Industries Co., Ltd.

Intel Corporation

Seiko Eoson Corporation

Norihiro Masuda

Toshio Kumagai

Kenji Otokita

Katsuyoshi Onodera

Yoshihiro Kobayashi

Shinichi Kamoshida

Kazutoshi Fujisawa

Kazuyoshi Tanase

Yoshitaka Shimada

Kazutoshi Shimizu

Kazuhito Hori

Mitsuharu Shimizu

Yasushi Akatsuka

Masakuni Tokita

Yutaka Nagashima

Akira Kobayashi

Shinichi Yamakawa

A printer includes a printing unit that ejects an ink from an inkjet head onto a medium, and a mist suction unit that suctions mist of the ink. The printing unit includes a first inkjet head, and a second inkjet head provided downstream of the first inkjet head in a transport direction of the medium. The mist suction unit includes a first mist suction device provided between the first inkjet head and the second inkjet head in the transport direction, a second mist suction device provided downstream of the second inkjet head in the transport direction, a first flow path coupling a blower and the first mist suction device, and a second flow path coupling the blower and the second mist suction device. A suction force of the second mist suction device is stronger than a suction force of the first mist suction device.

Printing apparatus

At step S, a printer control unit refers to a table using an average print duty as an input, and determines a saturation temperature and a drum preliminary heating temperature. In this example, since the saturation temperature and the preliminary heating temperature with respect to the print duty are stored as a table, the printer control unit refers to the table using the average print duty as the input, and determines the saturation temperature and the drum preliminary heating temperature. At step S, the printer control unit investigates a current drum temperature based on a measurement result of a temperature sensor. Subsequently, at step S, the drum is heated or cooled until it reaches, of the saturation temperature and the drum preliminary heating temperature, the temperature for which the difference with the current drum temperature is smaller.

Printing apparatus and printing method

A printer includes a transport unit, a first head, a second head disposed downstream of the first head, a first suction unit configured to suction ink mist discharged from the first head, a second suction unit configured to suction ink mist discharged from the second head, and a suction device coupled to the first suction unit and the second suction unit, and configured to generate an airflow for suctioning the ink mist, and a first suction device disposed either one of on a first path from the first suction unit to the suction device, and at the suction device, and configured to adjust a flow rate at the first suction unit, and a second suction device disposed either one of on a second path from the second suction unit to the suction device, and at the suction device, and configured to adjust the flow rate at the second suction unit.

Inkjet printer, and printing method

A recording device includes a medium placement unit on which a medium is fixedly placed, a recording head configured to discharge liquid toward the medium, a gantry including a discharging unit, the gantry being configured to move relative to the medium placement unit along a first axial direction, a heater provided at the medium placement unit, the heater being configured to heat the medium placed on the medium placement unit, and a control unit configured to control the heater. The control unit controls heating of the medium by the heater in accordance with a condition.

Recording device and recording method for controlling a medium heater

A printing apparatus is provided that includes a line type printing head ejecting an UV ink onto a base material, an ultraviolet irradiator disposed downstream of the printing head, a mist retrieving section having a suction port and disposed between the printing head and the ultraviolet irradiator, and a control unit, wherein when printing is performed, the control unit adjusts, in accordance with a transport speed of the base material, at least one of a gap A, a gap B, and a suction air volume of the mist retrieving section such that a direction of an airflow passing through a gap between the base material and the ultraviolet irradiator is opposite the transport direction of the base material. The gap A is a gap between the printing head and the mist retrieving section, and the gap B is a gap between the base material and the suction port.

An irradiation device includes a first LED row having a plurality of LEDs aligned in one row and electrically connected in series, and a second LED row having a plurality of LEDs aligned in one row and electrically connected in series. The first LED row and the second LED row are aligned adjacent to each other in a direction that crosses an array direction of the LEDs of the first LED row. A direction of current flowing in the first LED row is opposite to a direction of current flowing in the second LED row.

Irradiation device and image recording device

A printing apparatus which performs printing by ejecting liquid onto a printing medium includes a gas flow generating section that generates a gas flow to collect and exhaust liquid not used for printing, and a gas-liquid separation cyclone that swirls the gas flow so that the liquid is centrifugally separated from a gas which moves along the gas flow, wherein the gas flow generating section exhausts the gas along the gas flow after the liquid is separated from the gas by the gas-liquid separation cyclone.

There is provided a liquid discharging apparatus which includes a discharge head that includes a nozzle forming surface on which nozzles for discharging liquid are formed; a wiping member that performs wiping by relatively moving on the nozzle forming surface while abutting on the nozzle forming surface; a cleaning liquid supply unit that supplies cleaning liquid provided for the wiping; and a control unit that performs reciprocating wiping control which performs the wiping by causing the wiping member for holding the cleaning liquid supplied from the cleaning liquid supply unit to perform a reciprocating operation in which, after relative movement is performed in a first direction along the nozzle forming surface, relative movement is performed in a second direction which is opposite to the first direction.

Liquid discharging apparatus and method of cleaning discharge head

There is provided a head cleaning method in a liquid discharging apparatus which includes a head, a storage section that stores liquid, a circulation flow path that includes a first flow path which supplies the liquid from the storage section to the head and a second flow path which refluxes the liquid from the head to the storage section, a circulation pump, and a wiping section. The head cleaning method includes: a first step of setting a flow rate per unit time of the liquid which flows through the circulation flow path to a first flow rate which is greater than a flow rate in a case in which the liquid is discharged to the recording medium; a second step of the wiping section performing the wiping process after the first step; and a third step of setting the flow rate per unit time of the liquid which flows through the circulation flow path to a second flow rate which is lower than the first flow rate after the second step.

Head cleaning method and liquid discharging apparatus

In a liquid discharging apparatus that includes a circulation flow path, a head cleaning method includes a first process in which a flow rate of the liquid flowing through the circulation flow path per unit time is set at a first flow rate; a second process in which, after the first process is completed, a wiping unit carries out a wiping operation in a state where the liquid is discharged from the nozzle; a third process in which, after the second process is completed, the wiping unit carries out the wiping operation in a state where the liquid is not discharged from the nozzle; and a fourth process in which, after the third process is completed, a flow rate of the liquid flowing through the circulation flow path per unit time is set at a second flow rate that is lower than the first flow rate.

A liquid discharge apparatus includes a first head, a second head on a downstream side in the transport direction from the first head, a first irradiation section between the first head and the second head, a second irradiation section arranged on the downstream side in the transport direction, a first mist recovery section that is arranged between the first head and the first irradiation section, a second mist recovery section that is arranged between the second head and the second irradiation section, and an air flow adjustment member that is arranged between the second mist recovery section and the second irradiation section, adjusts an amount of air which is absorbed into the second mist recovery section, and decreases the air which is absorbed from the downstream side in the transport direction than the second mist recovery section in the air which is absorbed into the second mist recovery section.

Liquid discharge apparatus

A liquid ejection device includes first and second ejection heads, first and second suction containers, and a suction fan. The first and second ejection heads are configured and arranged to eject liquid from a plurality of nozzles onto a recording medium. The first suction container is disposed on a downstream side of the first ejection head with respect to a direction of feeding the recording medium. The second ejection head is disposed on a downstream side of the first suction container. The second suction container is disposed on a downstream side of the second ejection head. The suction fan is configured and arranged to generate an air flow. The first suction container and the second suction container are connected to the suction fan.

Mist collection device and liquid ejection device

A liquid ejection device includes an ejection head, a suction section, a space section, a collection part, an outlet section and a suction device. The suction section has a slit shaped opening. The space section is in communication with the suction section and has an internal volume greater than an internal volume of the suction section. The collection part is configured to collect the mist generated by ejecting the liquid by separating the mist from air suctioned by the suction section. The outlet section has a first opening and a second opening, the first opening is in communication with the space section and the second opening is in communication with the collection part. The suction device is configured to generate an air flow flowing from the suction section to the collection part. Opening area of the slit shaped opening is greater than opening area of the first opening.

A mist collection device is adapted to collect a mist of liquid generated by ejecting the liquid from a plurality of nozzles in an ejection head, the mist collection device includes a suction section, a tube section, a collection part, an outlet section and a suction device. A suction port is formed in the suction section with the suction port being an opening having a length in an arrangement direction of the nozzles greater than a width in a direction perpendicular to the arrangement direction. The tube section is in communication with the suction section and having a hollow tube shape whose longitudinal direction is parallel to the arrangement direction. The collection part collects the mist by separating the mist from air suctioned by the suction section. The suction device is configured and arranged to generate an air flow flowing from the suction section to the collection part.

A liquid ejection device includes: an ejection head configured and arranged to eject liquid from a nozzle; a suction container in which a first suction port, a second suction port that is farther away from the nozzle compared to the first suction port, and a discharge port are formed, air sucked from the first suction port and the second suction port passing through the suction container; and a suction device configured and arranged to suck the air from the discharge port to an outside of the suction container.

Growing community of inventors

Nagano, Japan

Norihiro Masuda