Abstract: A medium cutting device cutting a continuous medium carried along a carrying path in a carrying direction includes a sandwiching part that is provided capable of sandwiching a medium; and a cutting blade that includes an edge extending in a width direction (X) of the medium, which is perpendicular to the carrying direction, wherein the medium is cut by the edge while the medium is sandwiched and held by the sandwiching part. Wherein the edge is in a shape depicting an involute curve in which path lengths (PL) of the medium, which are determined from the sandwiching part to the edge in the carrying direction, are substantially constant over the edge in the width direction.
Abstract: A charging device includes a charging member and a cleaning member. The charging member electrically charges a surface of a charging target member and is rotatable while being in contact with the surface of the charging target member. The cleaning member is in contact with a surface of the charging member and removes a foreign object attached to the surface of the charging member. Surface free energy of the surface of the charging member is 5.00 dynes per centimeter or more. A dynamic friction coefficient of the surface of the charging member and a surface of the cleaning member falls within a range from 0.48 to 0.88 both inclusive. The surface free energy and the dynamic friction coefficient satisfy a relation represented by the following expression (1). E??63?+69??(1) “E” is the surface free energy in dynes per centimeter, and “u” is the dynamic friction coefficient.
Abstract: An image forming apparatus includes: a storage section (118) that stores apparatus setting information including a plurality of setting values corresponding to a plurality of setting items in the image forming apparatus; a backup setting generation section (115) that generates a BSF including a setting value extracted from the apparatus setting information and first identification information assigned to the image forming apparatus in a network; a backup setting control section (114) that sends the generated BSF to another printer (110) and receives the BSF from the another printer (110); and a backup setting update section (117) that specifies a setting value that is able to be set in the image forming apparatus and updates a setting value included in the apparatus setting information to the specified setting value.
Abstract: An exposure device according to an embodiment may include: a holding member provided with a reference surface; an optical system being in contact with the reference surface and slidable in a first direction parallel to the reference surface; and a board including a light emitting element and being fixed to the holding member such that the optical system is sandwiched between the reference surface and the board.
Abstract: An image forming method includes: placing developer on a medium in accordance with image data to form a developer image; and fixing the developer image to the medium while conveying the medium along a conveying direction. The image forming method further includes: determining, as a blocked region, a region of the developer image where no developer is placed and whose upstream side in the conveying direction is blocked by a developer region where the developer is placed; and forming at least one groove extending in the conveying direction in an upstream region of the developer image that is located upstream of the blocked region in the conveying direction and included in the developer region.
Abstract: An information processing apparatus according an embodiment includes: a storing unit capable of storing one or more setting information each of which is set for executing image formation processing, wherein each setting information is associated with and stored with first apparatus information indicating a first configuration of the image formation apparatus for the corresponding setting information, the storing unit further being capable of storing second apparatus information indicating a second configuration of the image formation apparatus, which is a latest configuration of the image formation apparatus; and a processing unit that, when receiving an instruction to select one of the one or more setting information as actual setting, compares the first apparatus information associated with the selected setting information and the second apparatus information, and determines, based on the comparison result, to accept or reject to reflect the selected setting information to the actual setting.
Abstract: A developer container includes: a body in which a plurality of developer chambers that store developer are arranged, each developer chamber having an opening; and a plurality of covers that seal the openings of the plurality of developer chambers, the plurality of covers being separately provided to correspond to the openings of the plurality of developer chambers.
Abstract: An image processing apparatus includes an image processing part that creates bitmap data based on print data input from outside, a density correction part that performs pre-determined density correction such that a density of a print image, which is formed on a print medium, is maintained within a regulated range, and a determination part that determines whether or not it is necessary to re-create the bitmap data based on the print data according to a comparison result between a first density value which is created at a timing when the bitmap data is created and a second density value which is created at a timing when the density correction is performed by the density correction part. Wherein the image processing part re-creates the bitmap data based on the print data when the determination part determines that it is necessary to re-create the bitmap data, and does not re-create the bitmap data when the determination part determines that it is not necessary to re-create the bitmap data.
Abstract: An information acquisition method includes steps of selecting, transmitting, and determining. The selecting step is a step of selecting one function demanding an input of a destination. The transmitting step is a step of transmitting information indicating one or more destinations from a mobile terminal to a multifunction device. The determining step is a step of determining at least one destination corresponding to the one function.
Abstract: A toner container used in an image forming apparatus including an exposure unit with a light emitting diode light source includes a container body, and a cyan toner stored in the container body. A lightness L*, a hue a*, and a hue b* of the cyan toner in a powder state satisfy 26.94?L*?34.84, ?5.13?a*?3.83, and ?47.47?b*??36.78.
Abstract: A toner includes binder resin 101 and a coloring agent 102. The coloring agent 102 is configured so that hue of a hue measurement print image printed on a print medium with the toner satisfies ?8.6?a*(Y)??7.9 and 93.4?b*(Y)?95.4, where a*(Y) and b*(Y) represent an a* value and a b* value of the hue measurement print image and light resistance F of a light resistance measurement print image printed on a print medium with the toner, after an irradiation test in which the light resistance measurement print image is irradiated with light having 0.36 W/m2 spectral irradiance at a wavelength of 340 nm for 663 hours, is higher than or equal to 70%. The toner is configured so that its melt viscosity at 120° C. is higher than or equal to 1400 Pa·s and lower than or equal to 1600 Pa·s.
Abstract: A developer container includes a body, an agitating bar, and an agitating film. The body includes a bottom plate; a first side wall; a second side wall facing the first side wall; a developer chamber defined by the bottom plate, the first side wall, and the second side wall, the developer chamber storing developer; and an opening formed in the bottom plate to allow the developer chamber to communicate with an outside of the developer chamber and allow the developer to be supplied from the developer chamber to the outside of the developer chamber. The agitating bar is configured to rotate to agitate the developer stored in the developer chamber. The agitating film is attached to the agitating bar and configured to, when rotation of the agitating bar stops, stop in a state where the agitating film abuts the first side wall and the second side wall.
Abstract: An image forming apparatus includes a toner image supporting section and a medium transfer section. The toner image supporting section includes first and second toner image supporting member that support first and second toner images at first and second linear speeds, respectively. The medium transfer section transfers, onto a medium, the first and second toner images respectively supported by the first and second toner image supporting members, to thereby cause the first and second toner images to be superimposed on each other. The following conditional expression (1) is satisfied when the medium transfer section transfers the first and second toner images onto the medium, (Vd1?Vt1)/(Vt1>(Vd2?Vt2)/Vt2??(1) where Vd1 is the first linear speed, Vt1 is a first conveyance speed of the medium, Vd2 is the second linear speed, and Vt2 is a second conveyance speed of the medium.
Abstract: An image forming apparatus includes: a memory that stores a setting for a first process in association with an identifier; a receiver that receives the identifier, image data, and a request for a second process from a host apparatus capable of requesting the second process but incapable of requesting the first process; and a processor that performs the first process on a basis of the image data according to the setting stored in association with the identifier.
Abstract: An image formation apparatus according to an embodiment may include: a sensor unit provided at a movable part being movable in a main scanning direction; a driver configured to move a medium in a sub-scanning direction; a controller that controls the sensor unit, the movable part, and the driver, wherein the controller controls the sensor unit to detect the medium while controlling the movable part to move in the main scanning direction without driving the driver, and controls the sensor unit to detect the medium while controlling the movable part to move in the main scanning direction with controlling the driver to move the medium in the sub-scanning direction.
Abstract: A recording apparatus according to an embodiment may include: a control unit that controls a medium conveyance unit to unwind the wound medium and convey the medium, a recording unit to record an image of recording agent on the medium, and a drying unit to dry the image of the recording agent in a first drying zone and a second drying zone downstream from the first drying zone. Upon causing the recording unit to record a second image after having caused the recording unit to record a first image, the control unit causes the drying unit to dry the recording agent of the first image in the first drying zone, and convey the medium in a direction opposite to the conveyance direction to a predetermined position downstream from the recording unit, and thereafter causes the recording unit to apply the recording agent of the second image to the medium.
Abstract: A sheet medium conveying device conveys a sheet medium in which position detection marks are provided at regular intervals in a medium conveying direction in which the sheet medium is conveyed. The sheet medium conveying device includes a controller that controls conveyance of the sheet medium. The controller selects one of a first standby position and a second standby position located downstream of the first standby position in the medium conveying direction, and conveys the sheet medium to the selected standby position and puts the sheet medium on standby.
Abstract: A heating device includes: a power unit as a primary device which supplies an alternating-current output voltage; and a secondary device including a heater which generates heat by using the alternating-current output voltage. The power unit includes: a rectifier which rectifies an alternating-current input voltage; an inverter which converts a direct-current voltage generated from an output of the rectifier to the alternating-current output voltage; a first detector which detects the alternating-current input voltage; a second detector which detects the alternating-current output voltage; and an inverter controller which receives information indicating a set voltage of an output of the inverter, and controls the inverter such that the alternating-current output voltage approaches the set voltage based on a first detection value outputted from the first detector and on a second detection value outputted from the second detector.
Abstract: A fixing device includes: a belt; a heating element that heats the belt; and a pressure member that faces the belt and forms a nip portion between the pressure member and the belt. A dielectric relaxation rate of the belt 10 seconds after applying a corona discharge at 7000V to the belt is greater than or equal to 9.5% and less than or equal to 28.9%.