A printing apparatus includes a heat transfer system for transferring heat away from or to a print medium moving in a movement direction through the printing apparatus. The heat transfer system includes a heat transfer member with a rotatable support surface configured for supporting the print medium. The heat transfer member is provided with at least one channel. The support surface is rotatable around an axis in order to move the print medium in the movement direction. A fluid circulation means is configured for supplying a fluid through said at least one channel. The at least one channel is configured such that, in operation, when fluid is supplied through said at least one channel, torque is generated in a fluido-mechanical manner around said axis, contributing to a rotational movement of the support surface of the heat transfer member.

An example method comprises identifying, by a processor, a gap in a housing of a printing apparatus and positioning an inlet of a conduit inside the housing proximate the gap. The inlet is fluidly connected to a fan, and the fan is powered to create a pressure differential across the housing to minimize the amount of air inside the housing being able to escape the housing via the gap.

An example method comprises identifying, by a processor, a gap in a housing of a printing apparatus and positioning an inlet of a conduit inside the housing proximate the gap. The inlet is fluidly connected to a fan, and the fan is powered to create a pressure differential across the housing to minimize the amount of air inside the housing being able to escape the housing via the gap.

A method comprises processing a substrate in a gas enclosure to form a film on one or more portions of the substrate. The method further comprises, while processing the substrate, circulating gas along a circulation path through the gas enclosure. Circulating the gas may comprise flowing gas through an exhaust housing enclosing a printhead assembly housed in the gas enclosure and filtering the gas flowing downstream of the printhead assembly from the exhaust housing.

A method comprises processing a substrate in a gas enclosure to form a film on one or more portions of the substrate. The method further comprises, while processing the substrate, circulating gas along a circulation path through the gas enclosure. Circulating the gas may comprise flowing gas through an exhaust housing enclosing a printhead assembly housed in the gas enclosure and filtering the gas flowing downstream of the printhead assembly from the exhaust housing.

A conveyance device includes a conveyor having an outer face that contacts a sheet adhered with liquid. The conveyor conveys the sheet. A heat radiator generates air. A ventilator sends the air to the outer face of the conveyor.

A conveyance device includes a conveyor having an outer face that contacts a sheet adhered with liquid. The conveyor conveys the sheet. A heat radiator generates air. A ventilator sends the air to the outer face of the conveyor.

A printer includes a print zone, a curing zone, first and second fans, a heat exchanger, a heat valve, and a fan controlling unit. The print zone includes a print head to lay down ink on a media. The curing zone treats the media. The first fan generates a primary flow through the curing zone to treat the media. The heat exchanger is downstream the curing zone on the primary flow to condensate vapors contained in the primary flow. The second fan generate as secondary flow through the heat exchanger to cool the primary flow. The secondary flow is able to reach the print zone. The heat valve releases the secondary flow into the environment, downstream the heat exchanger. The fan controlling unit controls the second fan taking into account an ink density of the ink laid down on the media and/or an aperture level of the heat valve.

A printer includes a print zone, a curing zone, first and second fans, a heat exchanger, a heat valve, and a fan controlling unit. The print zone includes a print head to lay down ink on a media. The curing zone treats the media. The first fan generates a primary flow through the curing zone to treat the media. The heat exchanger is downstream the curing zone on the primary flow to condensate vapors contained in the primary flow. The second fan generate as secondary flow through the heat exchanger to cool the primary flow. The secondary flow is able to reach the print zone. The heat valve releases the secondary flow into the environment, downstream the heat exchanger. The fan controlling unit controls the second fan taking into account an ink density of the ink laid down on the media and/or an aperture level of the heat valve.

A printer includes an ejecting head that ejects ink, a glued belt including a support surface, a first fan and a second fan configured to blow air toward the support surface, and a facing portion facing a portion of the first fan and a portion of the second fan. The facing portion includes an opening that opens in the Z direction. The opening is located between the first fan and the second fan in the X direction when viewed in the Z direction. When a spacing in the X direction at a first position in the +Y direction is defined as the first spacing and a spacing in the X direction at a second position upstream of the first position in the +Y direction is defined as the second spacing, the second spacing is larger than the first spacing.