An ink-jet recording apparatus includes a recording head including a plurality of pressurizing chambers for storing ink and a plurality of pressurizing elements for pressing ink in the pressurizing chambers to eject ink from nozzles; a head driver including a driving pulse generator that applies a drive voltage to the pressurizing element to generate a drive waveform for ejecting ink from the nozzles; a conveying belt having a plurality of openings which conveys a recording medium; and a control portion. The control portion controls the driving of the head driver and the conveying belt to perform flushing where ink droplets are ejected from the nozzles in the recording head to pass through one of the plurality of openings with a timing different from that for image recording, using a drive waveform with which the ink droplets ejected from the nozzle each become one droplet before passing through the openings.

An ink-jet recording apparatus includes a recording head including a plurality of pressurizing chambers for storing ink and a plurality of pressurizing elements for pressing ink in the pressurizing chambers to eject ink from nozzles; a head driver including a driving pulse generator that applies a drive voltage to the pressurizing element to generate a drive waveform for ejecting ink from the nozzles; a conveying belt having a plurality of openings which conveys a recording medium; and a control portion. The control portion controls the driving of the head driver and the conveying belt to perform flushing where ink droplets are ejected from the nozzles in the recording head to pass through one of the plurality of openings with a timing different from that for image recording, using a drive waveform with which the ink droplets ejected from the nozzle each become one droplet before passing through the openings.

A printing apparatus for printed electronics according to the present invention may include: ejection head units which each have at least one nozzle for ejecting ink droplets to perform drop-on-demand or continuous printing; a jetting observation unit which is provided at one side of the nozzle and configured to observe the ink droplet ejected from the nozzle; a lighting unit which is provided at the other side of the nozzle and configured to provide light to the jetting observation unit; an alignment observation unit which is configured to observe an aligned state between the nozzle and a substrate; and a fluid supply unit which is configured to supply the ink to the nozzle, in which the ejection head units include a single-nozzle head unit, and a multi-nozzle head unit provided separately from the single-nozzle head unit.

A printing apparatus for printed electronics according to the present invention may include: ejection head units which each have at least one nozzle for ejecting ink droplets to perform drop-on-demand or continuous printing; a jetting observation unit which is provided at one side of the nozzle and configured to observe the ink droplet ejected from the nozzle; a lighting unit which is provided at the other side of the nozzle and configured to provide light to the jetting observation unit; an alignment observation unit which is configured to observe an aligned state between the nozzle and a substrate; and a fluid supply unit which is configured to supply the ink to the nozzle, in which the ejection head units include a single-nozzle head unit, and a multi-nozzle head unit provided separately from the single-nozzle head unit.

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.

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.