A recording method includes applying an ink composition onto a recording medium, primarily drying the recording medium during the application of the ink composition, transporting the recording medium applied the ink composition to a secondary drying device, and secondarily drying the recording medium with the secondary drying device. The variation in surface temperature of the recording medium from the primary drying temperature (T1) to the lowest temperature and the variation in surface temperature of the recording medium from T1 to the highest temperature, in the period from completion of the application of the ink composition to completion of the secondary drying are 40% or more and 370% or less, respectively, relative to T1. The surface temperature of the recording medium is increased to the secondary drying temperature at an average rate of 7 C./s or less after the completion of the application of the ink composition.

A drying assembly comprises a plurality of electromagnetic energy sources arranged to dry printing fluid deposited onto a surface of a substrate, by evaporation of a solvent fluid therefrom. The drying assembly further comprises a conveyor system configured to move the substrate in a conveying direction, and a focusing system configured to focus electromagnetic energy from the plurality of electromagnetic energy sources to form a non-uniform heating pattern on the surface of the substrate. The non-uniform heating pattern comprises a plurality of spatially separated higher and lower intensity regions distributed along the conveying direction.

An inkjet recording apparatus includes an image forming section, a heater, a calculation section, storage, and a determination section. The image forming section ejects ink onto a sheet in which first to M-th regions are defined (M is an integer of at least 2). The heater includes first to M-th heat sources and heats an n-th region of the sheet using an n-th heat source (n is an integer of at least 1 and no greater than M). The calculation section calculates an ink ejection rate of ink to be ejected onto the n-th region. The storage stores therein heating information indicating whether it is necessary to heat the n-th region. The determination section determines whether or not to cause the n-th heat source to generate heat.

A drying device includes a roller, and the drying device is for drying a recording medium conveyed by rotation of the roller. The drying device includes a first heating source and second heating source included inside the roller; first and second temperature detectors for respectively detecting a temperature of a first region on a surface of the roller and a temperature of a second region on the surface of the roller; and a heating controller that controls heating and termination of the heating by the first heating source and/or the second heating source, wherein, upon detecting that a temperature of one region of the first region and the second region is higher than or equal to a predetermined temperature, the heating controller terminates heating by one heating source corresponding to the other region.

Systems and methods for adjustable interlacing of drying rollers in a print system. One system is an apparatus that includes first rollers that conduct heat from a heat source, and dry a web of print media as the web travels over a front side of the first rollers in a first direction. A last roller of the first rollers turns the web in a second direction. The apparatus also includes second rollers disposed a distance above the first rollers and that transport the web in the second direction. The apparatus further includes a movement mechanism that reduces the distance between the second rollers and the first rollers to cause the second rollers to occupy spaces between the first rollers so that the web traveling in the second direction contacts a back side of the first rollers to further dry the web.

A digital printing machine includes a first cylinder for transporting sheets, a second cylinder for transferring the sheets directly to the first cylinder, a third cylinder for transferring the sheets directly to the second cylinder, and at least one inkjet print head directed towards the first cylinder for printing on the sheets disposed thereon. At least one first sensor measures the temperature of the first cylinder, a second sensor measures the temperature of the sheets while being transported by the second cylinder or by the third cylinder, and at least one temperature control device controls the temperature of the sheets prior to their transfer to the first cylinder. A control element adapts the temperature of the sheets to the temperature of the first cylinder. The first sensor, the second sensor and the temperature control device are connected to the control element.

A drying device includes a plurality of heaters and a conveyance path. The plurality of heaters is disposed side by side in a direction of conveyance of a medium to contact and heat the medium to which liquid is applied. The medium is conveyed on the conveyance path while contacting the plurality of heaters. The conveyance path includes a first path and a second path. On the first path, the medium is conveyed while contacting the plurality of heaters. On the second path, the medium is conveyed while contacting again at least one of the plurality of heaters having contacted on the first path.

An inkjet printer includes a first ink head to eject a first ink, and a second ink head to eject a second ink. A generator generates dot groups including at least a first dot group and a second dot group including ink dots of the second ink. The dot groups include all the ink dots of the second ink. A first printing controller forms, on a recording medium, a first printing layer of the first ink and the first dot group. A second printing controller forms a second printing layer of the second dot group, above or below the first printing layer.

An ink jet recording apparatus includes first and second belts stretched by a plurality of rollers, including first, second and third rollers, and forming a nip, a heater disposed inside the first belt. The first roller is disposed upstreammost among the plurality of rollers in a conveyance direction, the second roller is disposed downstream of an irradiation area of the first belt heated by the heater and the third roller is disposed between from the second roller to the first roller in a rotational direction of the first belt. A first temperature sensor detects a temperature of the irradiation area in an inner circumferential surface. A second temperature sensor detects a temperature of the first belt between from the second roller to the third roller in the rotational direction.

A drying device includes a conveying unit to convey a medium to which liquid is discharged from a discharging head, a hot air blowing unit, a passage forming unit, and an adjusting unit. The hot air blowing unit includes a blowing unit, and a heating unit. The passage forming unit forms, between the hot air blowing unit and a region on a conveyance path of the conveying unit, a circulation path through which air blown from the hot air blowing unit is to be circulated. The adjusting unit adjusts an amount of air outside the circulation path that is supplied to the blowing unit. The circulation path includes an introduction portion, and an exhaust portion. The adjusting unit includes a movable member that changes an exhaust portion opening amount.