Abstract: An optical communication device has a Mach-Zehnder optical modulator; a monitor configured to monitor a modulated light output from the optical modulator; a first controller configured to set a substrate bias voltage or an amplitude of a drive signal applied to the first waveguide of a waveguide pair of the optical modulator to a desired level that provides a first modulation index; and a second controller configured to control a substrate bias voltage or an amplitude of the drive signal applied to the second waveguide of the waveguide pair based upon an output signal from the monitor such that a second modulation index for the second waveguide becomes the same or closer to the first modulation index set for the first waveguide.

Abstract: A printing apparatus includes a head and a control unit. The head discharges an imaging liquid for forming an image, and a supplementary liquid for supplementing formation of the image onto a printing medium. The control unit controls the head to execute a first operation, in which the imaging liquid is discharged onto a first region and a second operation, in which the supplementary liquid is discharged onto a region of the printing medium onto which the imaging liquid is not discharged. The control unit controls the head such that the discharge amount of the supplementary liquid on a second region, which is adjacent to the first region, is less than the discharge amount of the supplementary liquid on a third region, which is a region onto which the imaging liquid is not discharged and is not adjacent to the first region.

Abstract: 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.

Abstract: A printing apparatus includes a head and a control unit. The head discharges an imaging liquid for forming an image, and a supplementary liquid for supplementing the formation of the image with the imaging liquid onto a predetermined printing medium. The control unit is capable of selectively executing a first mode, in which the imaging liquid and the supplementary liquid are discharged from the head onto the predetermined printing medium, and a second mode, in which the imaging liquid is discharged from the head and the supplementary liquid is not discharged from the head.

Abstract: Provided is a liquid discharging apparatus that includes a rotating drum which has a medium wound around a part of an outer circumferential surface thereof and transports the medium in a circumferential direction and in which the medium is wound at a first position and a second position in an axial direction of the rotating drum, a transport portion which transports the medium which passes through the first position to the second position on the rotating drum, liquid discharge portions which discharge liquid onto the medium at the first position and the second position, and a position correction unit which corrects the axial position of the medium at the second position by adjusting a transport direction of the medium transported by the transport portion.

Abstract: A recording device includes a conveying part that conveys roll paper, a support part that supports the roll paper, a suction part that holds the roll paper to the support part by suction, a recording part that ejects liquid and records an image on the roll paper, a heating part that heats the support part to dry the liquid, and a controller that causes the suction part to use a first suction force to hold the roll paper to the support part by suction when the recording part performs a recording action for recording the image, and causes the suction part to use a second suction force, which is weaker than the first suction force, to hold the roll paper to the support part by suction when the recording part is not performing the recording action for recording the image.

Abstract: A liquid discharge device includes a head, an optical sensor and an air blowing unit. The head is configured and arranged to record on a medium. The optical sensor is configured and arranged to detect presence or absence of foreign matter. The air blowing unit is configured and arranged to blow air toward the optical sensor for removing the foreign matter.

Abstract: A printing apparatus includes a head and a control section. The head ejects an imaging liquid for forming an image and an auxiliary liquid for assisting the formation of the image by the imaging liquid with respect to a printing medium. The control section controls the head so that the imaging liquid and the auxiliary liquid are ejected with respect to the printing medium. Further, if there is a first region in which the imaging liquid and the auxiliary liquid are ejected, and a second region which is peeled after the image is formed in the first region in a region of the printing medium, the control section controls the head so that ejection of the auxiliary liquid is not executed with respect to the second region.

Abstract: A fluid ejecting apparatus includes a pair of guide rails that movably supports a carriage and an abnormal portion detecting sensor that has a light emitting portion and a light receiving portion for receiving a light beam emitted from the light emitting portion, in which the light emitting portion and the light receiving portion are mounted on the carriage via a sensor mounting member.

Abstract: A recording device includes a conveying part, a recording part, a suction part and a control part. The conveying part is configured and arranged to convey a medium. The recording part is configured and arranged to record on the medium. The suction part is configured and arranged to suction the medium on a flat surface. The control part is configured to perform a suction action by a suction part to eliminate wrinkles that form in the medium after a conveying action by the conveying part and before a recording action by the recording part, and to vary a period of the suction action by the suction part.

Abstract: In an optical modulation device, a first drive signal and a first bias signal are applied to a phase modulation unit, a second drive signal and a second bias signal are applied to a phase modulation unit, and a third bias signal is applied to a ?/2 phase shift unit. A control unit adjusts the third bias signal in a first adjustment period, adjusts the first drive signal and the first bias signal in a second adjustment period next to the first adjustment period, and adjusts the second drive signal and the second bias signal in a third adjustment period next to the second adjustment period. The control unit starts the second adjustment period before a gap between the current value of an adjustment reference signal and a target value is filled, and starts the third adjustment period before a gap in the second adjustment period is filled.

Abstract: There is provided a recording apparatus. The recording apparatus includes: a support member which supports a recording medium; a recording head which applies a recording material to one surface of the recording medium supported on the support member; and a fixing unit which fixes the recording material adhered to the one surface of the recording medium transported from the support member, wherein the support member and the fixing unit are arranged to be partly overlapped with each other in an up and down direction.

Abstract: A recording device includes a conveying part that conveys roll paper, a support part that supports the roll paper, a suction part that holds the roll paper to the support part by suction, a recording part that ejects liquid and records an image on the roll paper, a heating part that heats the support part to dry the liquid, and a controller that causes the suction part to use a first suction force to hold the roll paper to the support part by suction when the recording part performs a recording action for recording the image, and causes the suction part to use a second suction force, which is weaker than the first suction force, to hold the roll paper to the support part by suction when the recording part is not performing the recording action for recording the image.

Abstract: A recording device includes a platen, a recording head, a carriage and a cleaning unit. The platen supports a roll paper. The recording head ejects liquid onto the roll paper on the platen. The carriage supports the recording head. The cleaning unit is installed apart from the platen in a transport direction of the roller paper. The carriage transports the recording head in a direction parallel to the transport direction of the roll paper supported on the platen when the cleaning unit cleaning the recording head.

Abstract: Provided is a printing apparatus including a head and a control unit. The head ejects, onto a printing medium, an image forming liquid for forming an image and an ancillary liquid ancillary to forming of the image performed by the image forming liquid. The control unit performs control so as to cause the head to perform a first operation of ejecting the image forming liquid onto a first region of the printing medium, and a second operation of ejecting the ancillary liquid onto a second region of the printing medium, the second region being different from the first region. Further, the control unit performs control so as to cause the head to perform the second operation in an anterior pass and perform the first operation in a posterior pass.

Abstract: Provided is a liquid discharging apparatus that includes a rotating drum which has a medium wound around a part of an outer circumferential surface thereof and transports the medium in a circumferential direction and in which the medium is wound at a first position and a second position in an axial direction of the rotating drum, a transport portion which transports the medium which passes through the first position to the second position on the rotating drum, liquid discharge portions which discharge liquid onto the medium at the first position and the second position, and a position correction unit which corrects the axial position of the medium at the second position by adjusting a transport direction of the medium transported by the transport portion.

Abstract: A printing apparatus includes a head and a control section. The head ejects an imaging liquid for forming an image and an auxiliary liquid for assisting the formation of the image by the imaging liquid with respect to a printing medium. The control section controls the head so that the imaging liquid and the auxiliary liquid are ejected with respect to the printing medium. Further, if there is a first region in which the imaging liquid and the auxiliary liquid are ejected, and a second region which is peeled after the image is formed in the first region in a region of the printing medium, the control section controls the head so that ejection of the auxiliary liquid is not executed with respect to the second region.

Abstract: A printing apparatus includes a head and a control unit. The head discharges an imaging liquid for forming an image, and a supplementary liquid for supplementing the formation of the image with the imaging liquid onto a predetermined printing medium. The control unit is capable of selectively executing a first mode, in which the imaging liquid and the supplementary liquid are discharged from the head onto the predetermined printing medium, and a second mode, in which the imaging liquid is discharged from the head and the supplementary liquid is not discharged from the head.

Abstract: Provided is a liquid discharging apparatus that includes a supporting portion that supports a medium, a liquid discharging portion that discharges liquid onto the medium which is transported on the supporting portion, and a drying portion that has a drying path through which the medium passes and dries the liquid landing on the medium, in which a length of the drying path is variable.

Abstract: A printing apparatus includes a head and a control unit. The head discharges an imaging liquid for forming an image, and a supplementary liquid for supplementing formation of the image onto a printing medium. The control unit controls the head to execute a first operation, in which the imaging liquid is discharged onto a first region and a second operation, in which the supplementary liquid is discharged onto a region of the printing medium onto which the imaging liquid is not discharged. The control unit controls the head such that the discharge amount of the supplementary liquid on a second region, which is adjacent to the first region, is less than the discharge amount of the supplementary liquid on a third region, which is a region onto which the imaging liquid is not discharged and is not adjacent to the first region.