An ink heating device, which is incorporated in an inkjet printing apparatus, includes: a planar heating member bonded in a state where one surface of the planar heating member is thermally bonded to an outer surface of an ink tank storing ink; an elastic member, having a heat insulation property, is provided on the other surface of the planar heating member and presses the planar heating member against the ink tank; and a hardware processor that performs heating control on the planar heating member in a stepwise manner according to a stop time of a main body of the printing apparatus at a time of starting the main body of the printing apparatus.

An illumination control method of LED lamps for ink-jet printers including a recording head in which ink discharge printing ranges are formed in a printing direction and an LED lamp in which light emitting diodes are arranged at a rear side of the recording head with respect to the printing direction. In an ink-jet printer in which the light-emitting diodes are divided into plural areas and the light amount for each area can be individually controlled by a controller, and among the light-emitting diodes, the light amount of the light-emitting diode that first scans a glossy printed surface is set to a light amount that does not cause ink curing. The light amount of the light-emitting diode of the area that first scans is set so the total light amount on the glossy printed surface is less than or equal to the critical exposure amount of the integrated illuminance.

Provided is a light source device in which the housing is not full of heat, and the risk of inhaling dust in the housing or the risk of reduction of life of the fan device becomes reduced. In an aspect, a light source device according to the present disclosure includes a light source; a light source control unit for controlling turning on/off and a quantity of light of the light source; a cooling fan for cooling the light source; and a fan control unit for controlling a number of revolutions of the cooling fan, wherein the fan control unit is configured to: control the number of revolutions of the cooling fan to become a first number of revolutions depending on the quantity of light of the light source when the light source is turned on, and control the number of revolutions of the cooling fan to become a second number of revolutions lower than the first number of revolutions by waiting for a predetermined waiting time when the light source is turned off.

One embodiment can provide a heating system with thermal-visual-servo control. The system can include a heat source configured to emit localized heat to an object, a thermal camera configured to capture thermal images of the object, and a motion-control module coupled to the heat source and configured to control movement and focus of the heat source based on temperature information extracted from the thermal images, thereby facilitating controlled heating of the object.

A printing apparatus for applying ink to a target print medium to form an image by a print unit, comprising a plurality of temperature regulation units juxtaposed in a conveyance direction of the target print medium and each configured to regulate a temperature of the target print medium, a plurality of measurement units each configured to measure the temperature of the target print medium, and a control unit configured to make a temperature regulation capability of each temperature regulation unit variable, wherein each temperature regulation unit regulates temperature in a widthwise direction of the target print medium, each measurement unit measures the temperature in the widthwise direction of the target print medium, and the control unit controls the plurality of temperature regulation units based on the measured temperatures.

There is provided an image recording apparatus including: head configured to discharge a photo-curing liquid to a medium; irradiator configured to irradiate a curing light to cure the photo-curing liquid; distance measurer including first light emitter configured to emit a ranging light to measure a distance to the medium, and first light receiver configured to receive the ranging light; and casing housing the head, the irradiator and the distance measurer, and having a window through which an inside of the casing is visually perceptible. First filter is provided on the window, the first filter having a function of restraining transmission of the curing light more compared to transmission of a visible light. Second filter is provided on the first light receiver, the second filter having a function of restraining transmission of the visible light more compared to transmission of the ranging light.

An image-forming apparatus which can improve the heating stability of the recording material in the heating unit is provided. An image-forming apparatus constitutes an image forming apparatus having: a recording-material heating unit disposed in an upstream side of an image-former; a chassis that covers the recording-material heating unit; a pressurizer that is provided in the chassis and increases an air pressure in the chassis; and a gas inflow opening that is provided in the chassis and supplies air to the pressurizer from outside the chassis.

A recording method includes: recording a first image on a recording medium; reading the first image to determine whether the first image is correctly recorded; and when the first image is determined as not being correctly recorded, recording a second image over the first image. The water-based recording ink includes a water-soluble organic solvent which is at least one selected from the group consisting of a glycol ether and a diol compound having six to eight carbon atoms and two hydroxyl groups, at least one of the two hydroxyl groups not being bonded to a terminal of a carbon chain of the diol compound. A content of substances having a vapor pressure of 0.03 hPa or less at 20° C. in the water-based recording ink is 10 mass % or less and a surface tension of the water-based recording ink is 30 mN/m or less.

An ink jet recording method is a method including a jetting step of jetting a radiation-curable ink jet composition to adhere to a recording medium that shrinks when heated, and a curing step of curing the radiation-curable ink jet composition by irradiating the radiation-curable ink jet composition adhered to the recording medium with radiation, in which the recorded material has a first region and a second region where shrinkage ratios due to the heating in a main surface direction are different when the recorded material is shrunk by being heated and brought into close contact with a packaged object, the shrinkage ratio of the first region in the main surface direction is greater than the shrinkage ratio of the second region in the main surface direction, and the radiation-curable ink jet composition adheres to the recording medium such that a film thickness of a cured film formed in the first region is less than a film thickness of a cured film formed in the second region.

A printed material includes a base material, an image layer, and an adhesive layer. The image layer includes an image of a first shape. The adhesive layer has a second shape. The image layer and the adhesive layer are on opposite sides of the base material.