Abstract: An image forming apparatus includes: an image carrier; a lubricant applicator that applies a lubricant to the image carrier; a hardware processor; and a density unevenness measurer that is provided in the image forming apparatus or outside the image forming apparatus, and measures a first density unevenness for at least one of the density unevenness measurement image formed by the image former in the application unevenness detection mode or a density unevenness measurement image obtained by primary or subsequent transfer of the density unevenness measurement image, wherein the hardware processor detects the application unevenness of the lubricant applied by the lubricant applicator based on the first density unevenness measured by the density unevenness measurer.

Abstract: An image forming apparatus includes: an image carrier; a lubricant applicator that applies a lubricant to the image carrier; a hardware processor; and a density unevenness measurer that is provided in the image forming apparatus or outside the image forming apparatus, and measures a first density unevenness for at least one of the density unevenness measurement image formed by the image former in the application unevenness detection mode or a density unevenness measurement image obtained by primary or subsequent transfer of the density unevenness measurement image, wherein the hardware processor detects the application unevenness of the lubricant applied by the lubricant applicator based on the first density unevenness measured by the density unevenness measurer.

Abstract: An image forming device that forms a toner image on a photosensitive drum 413, including a lubrication device 200 that applies lubricant to the photosensitive drum 413 and an operation panel 20. The image forming device acquires spring mounting times 108d that indicate lubrication performance of the lubrication device 200, compares the spring mounting times 108d to a threshold value, and when the spring mounting times 108d exceed the threshold value, displays guidance on the operation panel 20 prompting an operation to restore lubrication performance of the lubrication device 200.

Abstract: An image forming apparatus includes a latent image carrier whose rotational speed changes depending on a printing speed of an image onto a sheet, an applicator that applies a lubricant to a surface of the latent image carrier, and a hardware processor that causes a surface of the applicator to move such that a difference between a first moving speed and a second moving speed is within a certain range, the first moving speed being a speed at which the surface of the latent image carrier moves, the second moving speed being a speed at which the surface of the applicator moves.

Abstract: An image forming apparatus includes: a photoreceptor; a charging member that charges the photoreceptor; a charging power supply that outputs an AC bias as a charging bias to be applied to the charging member during image formation, and outputs a DC bias as the charging bias during a non-image forming operation, the AC bias being obtained by superimposing an alternating current voltage and a direct current voltage, the image formation forming a latent image, the DC bias being a direct current voltage, the non-image forming operation rotating and driving the photoreceptor; a processor that performs predetermined processing on the photoreceptor; and a controller that controls the charging power supply and the processor such that a value of a potential difference of the photoreceptor before and after being charged by the DC bias is a value equal to or less than a setting value during the non-image forming operation.

Abstract: An image forming apparatus includes a latent image carrier whose rotational speed changes depending on a printing speed of an image onto a sheet, an applicator that applies a lubricant to a surface of the latent image carrier, and a hardware processor that causes a surface of the applicator to move such that a difference between a first moving speed and a second moving speed is within a certain range, the first moving speed being a speed at which the surface of the latent image carrier moves, the second moving speed being a speed at which the surface of the applicator moves.

Abstract: An image forming apparatus includes: a photoreceptor; a charging member that charges the photoreceptor; a charging power supply that outputs an AC bias as a charging bias to be applied to the charging member during image formation, and outputs a DC bias as the charging bias during a non-image forming operation, the AC bias being obtained by superimposing an alternating current voltage and a direct current voltage, the image formation forming a latent image, the DC bias being a direct current voltage, the non-image forming operation rotating and driving the photoreceptor; a processor that performs predetermined processing on the photoreceptor; and a controller that controls the charging power supply and the processor such that a value of a potential difference of the photoreceptor before and after being charged by the DC bias is a value equal to or less than a setting value during the non-image forming operation.

Abstract: An image formation apparatus includes: an image carrier; a developing device which develops an electrostatic latent image formed on the image carrier as a toner image; a transfer device which transfers the toner image to a medium; a cleaning device which recovers toner remaining on the image carrier after the toner image is transferred; and a lubricant application adjustment mechanism which applies a lubricant on the image carrier and recovers toner present on the image carrier upstream of the cleaning device; and a controller which controls the lubricant application adjustment mechanism. The controller causes the lubricant application adjustment mechanism to recover more toner when the toner image formed on the image carrier has a larger image area ratio.

Abstract: An image formation apparatus includes: an image carrier; a developing device which develops an electrostatic latent image formed on the image carrier as a toner image; a transfer device which transfers the toner image to a medium; a cleaning device which recovers toner remaining on the image carrier after the toner image is transferred; and a lubricant application adjustment mechanism which applies a lubricant on the image carrier and recovers toner present on the image carrier upstream of the cleaning device; and a controller which controls the lubricant application adjustment mechanism. The controller causes the lubricant application adjustment mechanism to recover more toner when the toner image formed on the image carrier has a larger image area ratio.

Abstract: A three-dimensional fabricated object manufacturing apparatus (1) provided with a fabrication block (20), an information code-forming block (30) and a position code-forming block (40). The fabrication block (20) sequentially stacks fabrication material layer by layer. The information code-forming block (30) forms an information code in which information for identifying the three-dimensional fabricated object is encoded inside the three-dimensional fabricated object that is fabricated by the fabrication block (20). The position code-forming block (40) forms a position code in which information representing the information code formation position in the three-dimensional fabricated object is encoded inside or on the surface of the three-dimensional fabricated object.

Abstract: The manufacturing apparatus (1) for three-dimensional moldings is provided with a molding block (20), a tag-supplying block (30) and a control unit (12). The molding block (20) is a molding device for molding a three-dimensional object by successively layering molding material layer by layer. The tag-supplying block (30) is a tag-supplying device for supplying a wireless communication tag to a specified position. The control unit (12) causes the tag-supplying block (30) to supply the wireless communication tag to the specified position of the molding material during layering of the molding material by the molding block (20) so that the wireless communication tag is embedded inside the three-dimensional molding that is obtained by layering the molding material.

Abstract: Having specified written information on a first card newly placed at a base A which is a first workspace and the position where the first card is placed, a PC (100A) which is a control device at base A stores, in a memory, the written information and the position where the first card is placed as card information. A PC (100B) connected to this PC instructs a printing device (200B) to print a second card based on the specified written information. The PC (100B) presents the position where the second card is to be placed at a base B which is a second workspace based on the specified position where the first card is placed.

Abstract: Having specified written information on a first card newly placed at a base A which is a first workspace and the position where the first card is placed, a PC (100A) which is a control device at base A stores, in a memory, the written information and the position where the first card is placed as card information. A PC (100B) connected to this PC instructs a printing device (200B) to print a second card based on the specified written information. The PC (100B) presents the position where the second card is to be placed at a base B which is a second workspace based on the specified position where the first card is placed.

Abstract: An image forming apparatus, wherein the packing density at a closest point where the first peripheral surface and the second peripheral surface are the closest to each other is within a range from 0.3 to 0.4; wherein a maximum magnetic flux density of a principal magnetic pole for generating the magnetic field for development is located in an upstream side from the closest point with respect to the specified direction and at a point where the packing density is equal to or greater than 0.2; and wherein a magnetic flux density of the principal magnetic pole at a point where the packing density is 0.2 in a downstream side from the closest point with respect to the specified direction is equal to or less than ½ of a magnetic flux density of the principal magnetic pole at a point where the packing density is 0.2 in the upstream side.

Abstract: An image forming apparatus for forming a toner image on a print medium with a developer composed of toner and carriers, wherein when the first distance is longer than the second distance, an average gap between the first peripheral surface and a member that faces to the first peripheral surface in an area with a length of the first distance extending upstream from the closest point with respect to the specified direction is smaller than an average gap between the first peripheral surface and a member that faces to the first peripheral surface in an area with a length of the first distance extending downstream from the closest point with respect to the specified direction.

Abstract: A two-component developing device using a developer containing toner and magnetic carrier particles. The developing device comprises a housing, a developing roller, a magnetic field generator mounted inside the developing roller, and a developer restricting member, and further comprises a developer guide member providing a developer guide path for guiding the developer to the developer amount restricting clearance, providing a developer circulation path for circulating the developer to an upstream end of the guide member, and providing a communication path for bringing the developer guide path into communication with the developer circulation path, an upstream end of the guide member being positioned above the position of a peak of magnetic flux density of the magnetic pole of the magnetic field generator which is closest to a low-magnetic force area downstream of the low-magnetic force area or positioned upstream of such a position and downstream of the low-magnetic force area.

Abstract: An image forming apparatus for forming a toner image on a print medium with a developer composed of toner and carriers, wherein when the first distance is longer than the second distance, an average gap between the first peripheral surface and a member that faces to the first peripheral surface in an area with a length of the first distance extending upstream from the closest point with respect to the specified direction is smaller than an average gap between the first peripheral surface and a member that faces to the first peripheral surface in an area with a length of the first distance extending downstream from the closest point with respect to the specified direction.

Abstract: An image forming apparatus, wherein the packing density at a closest point where the first peripheral surface and the second peripheral surface are the closest to each other is within a range from 0.3 to 0.4; wherein a maximum magnetic flux density of a principal magnetic pole for generating the magnetic field for development is located in an upstream side from the closest point with respect to the specified direction and at a point where the packing density is equal to or greater than 0.2; and wherein a magnetic flux density of the principal magnetic pole at a point where the packing density is 0.2 in a downstream side from the closest point with respect to the specified direction is equal to or less than ½ of a magnetic flux density of the principal magnetic pole at a point where the packing density is 0.2 in the upstream side.

Abstract: A two-component developing device using a developer containing toner and magnetic carrier particles. The developing device comprises a housing, a developing roller, a magnetic field generator mounted inside the developing roller, and a developer restricting member, and further comprises a developer guide member providing a developer guide path for guiding the developer to the developer amount restricting clearance, providing a developer circulation path for circulating the developer to an upstream end of the guide member, and providing a communication path for bringing the developer guide path into communication with the developer circulation path, an upstream end of the guide member being positioned above the position of a peak of magnetic flux density of the magnetic pole of the magnetic field generator which is closest to a low-magnetic force area downstream of the low-magnetic force area or positioned upstream of such a position and downstream of the low-magnetic force area.

Abstract: An image forming device is provided that is capable of easily preventing occurrence of stripe-like image noise that may be caused by intimate contact between a contact electrifying member and an image carrier even when an image forming operation is stopped for a while. In the image forming device having an electrifying roller in contact with a photoconductor, AC voltage is applied to the electrifying roller before the image carrier and the electrifying roller start rotating.