Abstract: A liquid discharge system includes: a first head having a first nozzle, from which a liquid is to be discharged, on a first nozzle face oriented in a first direction; a second head having a second nozzle, from which a liquid is to be discharged, on a second nozzle face oriented in a second direction different from the first direction; a head holder holding the first head and the second head; a first sealer configured to contact and seal the first nozzle face; a second sealer configured to contact and seal the second nozzle face; a first cleaner configured to clean the first nozzle face in a state where the first sealer has contacted and sealed the first nozzle face; and a second cleaner configured to clean the second nozzle face in a state where the second sealer has contacted and sealed the second nozzle face.

Abstract: A liquid discharge system includes: a head (300) including: a nozzle (302) from which a liquid is to be discharged; a liquid chamber (311) communicating with the nozzle through a communication port; a nozzle face (301) on which the nozzle is formed; and a valve (304) configured to open or close the communication port; and a cleaner (708) including a cleaning nozzle (201) to supply a cleaning liquid to the nozzle face, wherein the cleaner supplies the cleaning liquid from the cleaning nozzle to the nozzle face in a state where the valve has closed the communication port.

Abstract: A liquid discharge apparatus includes a plurality of liquid discharge nozzles, a housing, and a support. The plurality of liquid discharge nozzles discharges liquid. The housing includes the plurality of liquid discharge nozzles and an opening array face in which a plurality of nozzle rows are arranged. A plurality of nozzle openings of the plurality of liquid discharge nozzles are arranged in the plurality of nozzle rows. The support supports the housing, to fix the housing in a cleaning posture that is a fixed posture of the housing when the opening array face is cleaned. The opening array face has the plurality of nozzle openings at positions where the plurality of nozzle openings do not overlap each other in a gravity direction of the housing when the housing is fixed in the cleaning posture.

Abstract: A liquid discharge system includes: a first head having a first nozzle, from which a liquid is to be discharged, on a first nozzle face oriented in a first direction; a second head having a second nozzle, from which a liquid is to be discharged, on a second nozzle face oriented in a second direction different from the first direction; a head holder holding the first head and the second head; a first sealer configured to contact and seal the first nozzle face; a second sealer configured to contact and seal the second nozzle face; a first cleaner configured to clean the first nozzle face in a state where the first sealer has contacted and sealed the first nozzle face; and a second cleaner configured to clean the second nozzle face in a state where the second sealer has contacted and sealed the second nozzle face.

Abstract: A tension applying device is attached to a sheet conveyance device. The sheet conveyance device includes a feeding roller for feeding a continuous-form sheet and a winding roller for winding the continuous-form sheet fed from the feeding roller. The tension applying device applies tension to the continuous-form sheet between the feeding roller and the winding roller. The tension applying device includes a guide rail, a slider, a tension bar, and an angle adjustment mechanism. The guide rail is inclined downward toward a continuous-form sheet. The slider slides along the guide rail. The tension bar is supported by the slider and brought into pressure contact with the continuous-form sheet by weight of the slider. The angle adjustment mechanism adjusts an inclination angle of the guide rail with respect to a horizontal direction.

Abstract: A tension applying device is attached to a sheet conveyance device. The sheet conveyance device includes a feeding roller for feeding a continuous-form sheet and a winding roller for winding the continuous-form sheet fed from the feeding roller. The tension applying device applies tension to the continuous-form sheet between the feeding roller and the winding roller. The tension applying device includes a guide rail, a slider, a tension bar, and an angle adjustment mechanism. The guide rail is inclined downward toward a continuous-form sheet. The slider slides along the guide rail. The tension bar is supported by the slider and brought into pressure contact with the continuous-form sheet by weight of the slider. The angle adjustment mechanism adjusts an inclination angle of the guide rail with respect to a horizontal direction.