Seiko Epson Corporation

Atsushi Imamura

Yujiro Nomura

Akihiro Toya

Naoki Hori

Masashi Kitahara

Ken Ikuma

Nobuyuki Mizushima

Jun Yamada

Yoshihisa Saka

Shinji Kawakami

Tomoyuki Shiiya

Masashi Oba

Kunihiro Kawada

A printing apparatus includes a transport unit that intermittently transports a medium, a support portion that supports the medium, a head that performs printing by discharging a liquid onto the medium supported by the support portion during a period in which the transport of the medium by the transport unit is stopped, a carriage at which the head is mounted and that moves relative to the medium, and a control unit. The control unit starts the movement of the carriage before the transport of the medium by the transport unit is completed, and starts the discharge of the liquid by the head after the transport of the medium by the transport unit is completed.

Printing apparatus and method of printing for intermittantly transporting a medium

A printing apparatus (printer) is provided in which a base material is conveyed by a roll-to-roll method and feedback control is performed on a tension imposed on the base material, and which includes a control unit, a first drive motor (front drive motor) configured to control a speed of conveyance of conveying the base material, and a second drive motor (feeding motor, rear drive motor, winding motor) configured to control the tension imposed on the base material. In a case where a conveyance operation for conveying the base material is stopped based on detection of a foreign object, and when a speed of the first drive motor is at a predetermined value or less, the control unit stops the tension control performed by the second drive motor.

Printing apparatus and method of printing

In a printing apparatus, a controller is configured to control a printing unit such that printing is started after a transport distance of the substrate reaches a pre-discharge transport distance, in which the pre-discharge transport distance is set to a value not less than a first longest distance, provided that a transport distance in a condition in which the transport distance is a longest distance among conditions 1, 2, and 3 provided below is the first longest distance. Condition 1: a transport distance until a region of the substrate that was nipped between a front driving roller and a nip roller passes through a printing head disposed most downstream in a transport path of the substrate, Condition 2: a transport distance until a transport speed of the substrate becomes constant, and Condition 3: a transport distance until tension of the substrate being transported becomes stable.

Printing apparatus and printing method

Technology enabling accurately detected marks on a print medium according to the type of print medium is provided. A printerhas a media type identifierthat determines the type of medium; a mark sensorthat projects light and detects a mark on the medium; and an emittance controllerthat sets the emittance level of the light the mark sensorprojects. The printercan change the operating mode according to the type of medium M identified by the media type identifier. In the white medium mode, the mark sensordetects a mark MR with the emittance level set to a white medium emittance level. In the non-white medium mode, the mark sensordetects a mark MR with the emittance level set to a non-white medium emittance level, which is higher than the white medium emittance level.

Printer and control method of a printer

A web transporting method includes a drive roller (Gd), N (where N is an integer of 1 or greater) driven rollers (Gn) which nip a wound portion of a web between the drive roller and the driven rollers, and a tension application unit which applies a tension Tl to a portion of the web which is one side of the wound portion and applies a tension Th which is higher than the tension Tl to a portion of the web which is opposite the one side of the wound portion, in which an angle &#x3b8;, an angle &#x3b8;(n), a load P(n), a static friction coefficient &#x3bc;0, and a static friction coefficient &#x3bc;(n) satisfy a predetermined relational expression (expression 1).

Web transporting apparatus, web transporting method, image forming apparatus, and image forming method

A printing apparatus includes a transport unit which transports a recording medium in a transport direction; a printing unit which prints an image and a mark on the recording medium; and a mark detecting unit which is located on an upstream side of the printing unit in the transport direction, and detects a mark, includes a function of automatically adjusting a detecting sensitivity of the mark detecting unit, and obtains a printing start position using the mark, in which the mark detecting unit has a timer function including an ON delay in which a time between detecting of a mark and outputting of a detecting signal of ON is delayed, uses the timer function when obtaining the printing start position, and does not use the timer function when performing the automatic adjusting.

A printing apparatus includes: a driving roller configured to drive a recording medium by rotation thereof while being in contact with the recording medium; a discharging head configured to discharge liquid onto a recording medium; a driven rotational member configured to be driven to rotate as a result of transport of the recording medium while being in contact with the recording medium; a rotation position detection unit configured to detect a rotation position of the driven rotational member; and a control unit configured to rotate the driving roller to transport the recording medium and adjust a timing of discharging the liquid from the discharging head in accordance with a detection result of the rotation position detection unit. The control unit adjusts a rotational speed of the driving roller in accordance with a linear pressure applied to the recording medium on the driving roller.

An image recording device includes a drive roller, a driven roller, a recording unit and a control unit. The driven roller is configured and arranged with respect to the drive roller so that the recording medium is grasped between the drive roller and the driven roller. The recording unit is configured and arranged to record an image on the recording medium arranged further to a downstream side than the drive roller in a first direction. When the control unit stops conveying of the recording medium in the first direction, the control unit is configured to stop conveying of the recording medium in a state in which an area of the recording medium different from an area, in which the image is planned to be recorded after a timing at which conveying of the recording medium is stopped, is in contact with the driven roller.

Image recording device and image recording method

An image recording device includes a drive roller that conveys a recording medium by rotating, a driven roller that grasps the recording medium between it and the drive roller, a recording unit capable of recording an image on the recording medium arranged further to the downstream side than the drive roller in a first direction which is the recording media conveyance direction, and a control unit that records an image on the recording media while conveying the recording media in the first direction. The control unit, when the conveying of the recording media in the first direction stops, starts conveying the recording media in a second direction which is the reverse direction of the first direction, and stops conveying of the recording media in the second direction in a state with the image recorded on the recording media positioned between the drive roller and the driven roller.

An arrival of a joint member at a detection position provided at an upstream side of a recording unit on a transportation path is detected. A second distance, which is a distance from the detection position to the recording head along the transportation path, is longer than a first distance, which is a distance of a transportation of the continuous medium in the case where, because of an existence of a liquid already landed on an area of the continuous medium at the detection time, the area being located at a position being on the transportation path and facing the recording unit, the continuous medium is transported during a period until at least hardening of the liquid is completed by a light radiation portion.

An image recording apparatus includes a roller that is configured to rotate in a direction of conveyance of a recording medium in a state of contact with the recording medium, which is being conveyed, and that has a support shaft extending in a direction intersecting with the direction of conveyance, a fixation member fixing the roller movably in the direction intersecting with the direction of conveyance; a detector that is positioned between the roller and the fixation member and configured to detect a force received from the recording medium via the roller, a support member having an elastic member, and a roller movement unit that is connected to the support member and configured to move the roller in the direction intersecting with the direction of conveyance.

Image recording apparatus

There is provided an image recording apparatus including a transportation unit that transports a recording medium, a driven rotation member that rotates as a result of being driven depending on the recording medium which is transported by the transportation unit while in contact with the recording medium, a rotational position detection unit that detects a rotational position of the driven rotation member, and a control unit that controls an amount of transportation of the recording medium based on a result of the detection by the rotational position detection unit.

Image recording apparatus and recording medium transportation control method

An image-forming device includes an image-forming part, a conveying part, a suction part and a control part. The image-forming part is configured and arranged to form an image on a recording material that is rolled up in a recording material roll. The conveying part is configured and arranged to feed out the recording material from the recording material roll and to convey the recording material to the image-forming part. The suction part is configured and arranged to suction the recording material conveyed by the conveying part, the suction part being disposed at the image-forming part. The control part is configured to control a suction characteristic of the suction part according to a conveyance amount of the recording material after the recording material has begun to be conveyed by the conveying part.

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Nagano, Japan

Atsushi Imamura