Abstract: An information processing system includes a processor configured to: output a set value of a shift time on the basis of a history of processes performed by an apparatus and a target value of a ratio of a specific process performed by the apparatus, the apparatus having multiple modes having different times elapsing until execution of a process is ready, the history including the count of processes performed in each of at least two modes among the modes, the shift time being a time until the apparatus is shifted to a mode, among the modes, in which a time until execution of a process is ready is longer than in another mode.

Abstract: A manufacturing method of an electrostatic charge image developing toner includes a first aggregation step of aggregating polyester resin particles in a dispersion containing the polyester resin particles to form first aggregated particles, a second aggregation step of mixing the dispersion containing the first aggregated particles with a dispersion containing amorphous polyester resin particles, and while agitating the mixed dispersions, adhering the amorphous polyester resin particles on a surface of the first aggregated particles to form second aggregated particles, and a coalescence step of heating the dispersion containing the second aggregated particles for coalescing the second aggregated particles to form toner particles, in which the second aggregation step satisfies the following expression (1), expression (2), and expression (3), 35 ? Tc ? ( Tgs - 5 ) , expression ? ( 1 ) 10 ? Ts ? Tc , expression ? ( 2 ) 0.6 ? ( P - P ? 0 ) ? 3.

Abstract: An image reading apparatus includes: a shading roller that has a columnar shape extending in a longitudinal direction and is rotatable about a rotation axis extending in the longitudinal direction, the shading roller including, on an outer peripheral surface, a white reference arc surface which is white, has an arc-shaped cross section in a lateral direction, and extends in the longitudinal direction, and a white reference flat surface which is white, is a flat surface, and extends in the longitudinal direction; an image sensor array that is provided to oppose the shading roller across a transport path of a document, and includes a plurality of image sensors arranged in a main scanning direction and receiving reflected light of light emitted from a light source toward the document or the shading roller; and a processor, wherein the processor calculates difference data indicating a difference between arc surface read data, which indicates pixel values output from the image sensors, respectively, and obtained a

Abstract: An information processing system includes a processor configured to: if urgent situation information is acquired from a synchronization destination when a standard synchronization to synchronize information between the information processing system and the synchronization destination is performed by communicating with the synchronization destination at predetermined time intervals, transmit, to a second information processing system that performs the standard synchronization, an execution instruction that causes to be performed an urgent synchronization that, before a next standard synchronization is performed, communicates with the synchronization destination and synchronizes information with the synchronization destination.

Abstract: An image reading apparatus includes: a shading roller that has a columnar shape extending in a longitudinal direction and is rotatable about a rotation axis extending in the longitudinal direction, the shading roller including, on an outer peripheral surface, a first white reference arc surface which is white, has an arc-shaped cross section in a lateral direction, and extends in the longitudinal direction, and a groove portion which is located at a position preceding the first white reference arc surface in a rotation direction of the shading roller and extends in the longitudinal direction; an image sensor array that is provided above the shading roller to oppose the shading roller across a transport path of a document, and includes a plurality of image sensors arranged in a main scanning direction and receiving reflected light of light emitted from a light source toward the document or the shading roller; and a processor, wherein the processor acquires shading data based on first arc surface read data indi

Abstract: A fixing device includes: a conveyor that conveys a recording medium in which a toner image is fixed onto a first face by heating and pressurizing and a toner image unfixed is held on a second face; a heating member that heats the toner image held on the second face of the recording medium conveyed by the conveyor in a contact state; a pressing member that pressurizes the recording medium against the heating member to fix the toner image held on the second face of the recording medium and contacts the toner image fixed onto the first face of the recording medium; and an irregular portion that is provided on a surface of the pressing member, has a plurality of protrusions and recesses, and has a difference in height between the recesses and the protrusions equal to or greater than a height of a toner layer in a solid toner image fixed onto the first face of the recording medium.

Abstract: A tubular fixing member includes a first layer and a second layer that is disposed in contact with an outer circumferential side of the first layer. In a case where thermal conductivities of the first layer in an axial direction, a circumferential direction, and a thickness direction are denoted by ?1x, ?1y, and ?1z, respectively, and thermal conductivities of the second layer in the axial direction, the circumferential direction, and the thickness direction are denoted by ?2x, ?2y, and ?2z, respectively, the following requirements (1), (2), and (3) are satisfied.

Abstract: An electrostatic charge image developing carrier, contains: a magnetic particle; and a coating resin layer coating the magnetic particle and containing inorganic particles, in which an area ratio of the inorganic particles that is a ratio of a total area of the inorganic particles to an area of the coating resin layer in a cut surface of the coating resin layer along a thickness direction of the coating resin layer is 10% or more and 50% or less.

Abstract: An electrostatic image developing toner set includes a brilliant toner having brilliant toner particles that include a binder resin and a brilliant pigment, and a color toner having color toner particles that include a binder resin and a colorant other than the brilliant pigment. The binder resin included in the brilliant toner particles and the binder resin included in the color toner particles are incompatible with each other.

Abstract: An information processing apparatus includes: a processor configured to: in deleting documents associated with talks in a chat room, extract a deletion target document using attributes of the talks associated with the documents.

Abstract: An endless belt contains a resin and a surface modifier. The endless belt has, at an outer circumferential surface thereof, a sea-island structure including a sea portion containing the resin and island portions containing the surface modifier. The area of the island portions is equal to or less than 5% of the total area of the outer circumferential surface.

Abstract: A light-emitting device includes a first base member; a laser unit provided on the first base member; a capacitive element that is provided on the first base member and supplies a driving electric current to the laser unit; a wiring board that is constituted by a second base member having lower thermal conductivity than the first base member and on which the first base member is mounted; and a driving unit that is mounted on the wiring board and drives the laser unit.

Abstract: An information processing system includes one or more processors configured to: receive authentication information for an authentication service for a user who uses a real apparatus; and cause a function corresponding to an authentication system defined by the received authentication information to be able to be used on the real apparatus.

Abstract: A porous cellulose structure includes at least one of a cellulose or a cellulose derivative as a main component, in which a specific surface area is 1 m2/g or more and 150 m2/g or less, and a void ratio is 10% or more and 50% or less.

Abstract: An image forming apparatus includes: an image carrier unit that is attachable to and removable from an apparatus body and that includes an image carrier; a development roller that passes toner to the image carrier when located in a position near the image carrier; an operation portion that moves, when operated, between a block position in which the operation portion blocks detachment of the image carrier unit from the apparatus body and an allowance position in which the operation portion allows detachment of the image carrier unit from the apparatus body, the development roller moving toward the image carrier in association with a movement of the operation portion to the block position, and the development roller moving away from the image carrier in association with a movement of the operation portion to the allowance position; and a positioning portion that positions the image carrier unit relative to the apparatus body in an attachment-removal direction of the image carrier unit when the operation portion

Abstract: An information processing system includes a processor configured to: register plural pieces of correlation information indicating correlation between a tray and paper information about paper and registration information in which at least one of the plural pieces of correlation information and identification information are correlated with each other; and execute a print process when identification information included in received print data matches identification information in the registration information, the print process being executed using the paper information based on the registration information with the matching identification information.

Abstract: A charging member includes a support member, an elastic layer provided on the support member, an outer layer provided on the elastic layer, and a protective layer provided as an outermost layer on the outer layer. The protective layer contains silica and has a silicon element concentration of 10 atomic % or more, and the outer peripheral surface has a contact angle with water of 35 degrees or less.

Abstract: A medium supply system includes: a supply unit that supplies air to a plurality of stacked recording media while changing a supply direction from an edge side of the recording media to float and separate the recording media; an imaging unit that captures images of the plurality of recording media to which the air is supplied by the supply unit from the edge side; and at least one processor, wherein the processor determines separation of the recording media using an image suitable for determining the separation of the recording media among the images captured by the imaging unit.

Abstract: Pigment-containing polyester resin particles contains a polyester resin and a pigment, in which the pigment is not exposed on a surface of the pigment-containing polyester resin particles and is not inscribed in a contour of the pigment-containing polyester resin particles.

Abstract: A buffer material includes a body portion that has two wall portions forming an accommodation space for accommodating an accommodation target object to be accommodated inside a box, an opening and closing portion that is provided on one wall portion of the two wall portions of the body portion, and is movable between a closed state where the accommodation space is closed and an open state where the accommodation space is open, and an opening restriction portion that restricts the opening and closing portion in the open state from moving to the closed state of the opening and closing portion.