Provided is a static eliminator that efficiently eliminates static electricity from a tray of a droplet ejection device of a tray transport type. A static eliminator 20 includes a movable part 22 which is pushed by a tray 12 due to movement of the tray 12 and moves, and an ion generator 24 disposed on a movement path of the tray 12 and configured to generate ions according to the movement of the movable part 22.

An inkjet printing apparatus includes: an airflow stage extending in a first direction; a print head unit disposed above the airflow stage; and an electric field generating unit that moves in the first direction and generates electric field above the airflow stage.

The present teachings disclose various embodiments of a printing system for printing substrate, in which the printing system can be housed in a gas enclosure, where the environment within the enclosure can be maintained as a controlled printing environment. A controlled environment of the present teachings can include control of the type of gas environment within the gas enclosure, the size and level particulate matter within the enclosure, control of the temperature within the enclosure and control of lighting. Various embodiments of a printing system of the present teachings can include a Y-axis motion system and a Z-axis moving plate that are configured to substantially decrease excess thermal load within the enclosure by, for example, eliminating or substantially minimizing the use of conventional electric motors.

The present teachings disclose various embodiments of a printing system for printing substrate, in which the printing system can be housed in a gas enclosure, where the environment within the enclosure can be maintained as a controlled printing environment. A controlled environment of the present teachings can include control of the type of gas environment within the gas enclosure, the size and level particulate matter within the enclosure, control of the temperature within the enclosure and control of lighting. Various embodiments of a printing system of the present teachings can include a Y-axis motion system and a Z-axis moving plate that are configured to substantially decrease excess thermal load within the enclosure by, for example, eliminating or substantially minimizing the use of conventional electric motors.

A device for positioning a garment on a printing platen for printing, comprises a gripper to controllably grip onto a first edge of the garment at a first side of the platen; and a sliding mechanism connected to the gripper to slide the gripper from the first side of the platen to a second side of the platen opposite the first side, thereby to pull the garment edge to the second side across the platen and position the garment across the platen for printing. The use of the device may prevent back pain related to repeated loading and unloading of platen-based textile printing devices.

A printing system having a vacuum transfer belt conveyor includes a fixed or movable perforated platen that supports workpieces, e.g., substrates, boards or other parts, to be printed. The printing system is configured to apply vacuum action through apertures or perforations defined through the perforated platen. In an embodiment, the print system is configured to mitigate deflection of ink drops, through the implementation of both a passive system, which reduces air flow in the region below the a print bar that includes one or more printheads, as well as an active system, which distributes the workpieces, e.g., substrates or boards, with respect to perforations in the transfer belt. In some embodiments, the perforated platen is comprised of a plurality of modular plates.

A printing system having a vacuum transfer belt conveyor includes a fixed or movable perforated platen that supports workpieces, e.g., substrates, boards or other parts, to be printed. The printing system is configured to apply vacuum action through apertures or perforations defined through the perforated platen. In an embodiment, the print system is configured to mitigate deflection of ink drops, through the implementation of both a passive system, which reduces air flow in the region below the a print bar that includes one or more printheads, as well as an active system, which distributes the workpieces, e.g., substrates or boards, with respect to perforations in the transfer belt. In some embodiments, the perforated platen is comprised of a plurality of modular plates.

A direct heat vacuum platen having a main case with an open top portion, a print surface having a main top configured to fit over the open top portion of the main case, the main top having a rectangular arrangement of suction ports configured to secure an above print substrate using suction provided from vacuum fans attached to the main case, heating elements attached to a bottom portion of the main top, a thermoregulator having a thermostat controller attached to temperature sensors and the heating elements within the main case, and a power controller having a power slot attached to a power switch and main fuse holder, a fan fuse holder, the thermostat controller and the suction fans. The suction ports are configured to hold a print substrate of a desired size. The usage of the internal vacuum fans reduces noise and power usage when compared to external vacuum apparatuses.

A valve assembly for controlling airflow along sheet edges on a vacuum transport assembly including a platen including one or more holes arranged in rows in a cross process direction, and a belt displaceable with respect to the platen in a process direction, the valve assembly including a flexible plate, including a first end, a second end, a first top surface, and a first bottom surface, and a first actuator connected to the second end and operatively arranged to displace the flexible plate.

A valve assembly for controlling airflow along sheet edges on a vacuum transport assembly including a platen including one or more holes arranged in rows in a cross process direction, and a belt displaceable with respect to the platen in a process direction, the valve assembly including a flexible plate, including a first end, a second end, a first top surface, and a first bottom surface, and a first actuator connected to the second end and operatively arranged to displace the flexible plate.