121 results about "Latent image" patented technology

The invention relates to the technical field of optical waveguide preparation, and discloses an optical waveguide mother set splicing-free preparation method based on a DMD dynamic mask, and the method comprises the steps: obtaining the layout data of an optical waveguide mother set as initial design information, and generating a mask pattern sequence which comprises a plurality of partition mask patterns; establishing a pixel mapping relationship between the on-off state of the micro-mirror unit and the partition mask pattern; driving the transparent substrate to execute partition positioning movement on the platform, and controlling the current exposure area of the photosensitive material layer to be aligned with the projection area of the partition mask pattern; on the basis of the pixel mapping relation and the partition positioning movement result, activating the mask pattern, and carrying out non-interval continuous exposure to form a full-page latent image pattern; the whole latent image pattern is subjected to developing treatment, the embossment structure of the optical waveguide master mask is treated and transferred into the transparent substrate, a waveguide core layer pattern is formed, the effects of non-interval continuous exposure and no segmented splicing are achieved, the preparation period of the surface embossment optical waveguide master mask is shortened, and the processing efficiency and the batch preparation yield are improved.

The invention discloses a water quality turbidity intelligent monitoring method and system based on vision, and relates to the technical field of water environment monitoring and intelligent perception, an industrial camera and an event camera perform coaxial acquisition, and an electric control polaroid and an adjustable incident angle realize angle-polarization dual scanning and construct a polarization prior tensor. Adaptive standardization is carried out on the dazzle removal reference frame, a forward operator is established by combining polarization geometry and particle size mapping, and a latent image is obtained through physical consistency inversion of split iteration. The method comprises the following steps: extracting multi-scale features from RGB / HSV / Lab three branches and a cavity pyramid by using time domain polarization transformation and reliability selection, carrying out cross-space fusion based on particle size spectrum estimation and spatial gating, outputting a turbidity value, and synchronously giving a particle size spectrum, depolarization confidence and flicker intensity. And the internet-of-things execution subsystem performs hierarchical linkage according to threshold values and performs online self-calibration.

The present application relates to the field of image forming apparatus, and particularly relates to a control method of image forming apparatus and related equipment. The image forming apparatus comprises: a plurality of image carriers, a primary transfer component, an intermediate transfer body, a first driving component and a control unit; each image carrier is used for carrying an electrostatic latent image and forming a toner image through toner development; the intermediate transfer body is configured to abut or separate from the image carrier to receive the toner image on the image carrier; the primary transfer component is used for abutting the intermediate transfer body on the image carrier to transfer the toner image on the image carrier to the intermediate transfer body; the first driving component is used for driving the primary transfer component to move, so that the intermediate transfer body switches between the state of abutting and separating from the image carrier; and the control unit controls the primary transfer component to drive the intermediate transfer body to abut the image carrier when the power supply of the developing component to the corresponding developing component of the image carrier is turned on.

The image forming system includes: an image holding body that rotates; a charging unit that rotates while being in contact with the image holding body and charges the surface of the image holding body by applying a charging bias voltage; a pressing member that presses the charging portion against the image holding body so as to create a bite width; a developing unit that develops a latent image formed on the surface of the image holding body with a toner; and at least one processor that performs a process in which an absolute value of a surface potential of the image holding body charged by the charging portion is lower than an absolute value of a developing potential of the developing portion; the absolute value of the potential of the charging part is raised in a rectangular wave manner only during a set time during which the charging part instantly discharges before and after the nip width of the image holding body and does not discharge at the center of the nip width, and the absolute value of the potential of the charging part is raised in a rectangular wave manner only during a set time during which the charging part does not discharge at the center of the nip width. The absolute value of the surface potential of the image holding body is higher than the absolute value of the developing potential.

Toner for development of electrostatic latent images has a toner particle including a toner core particle and a shell layer that coats it. The toner core particle includes, at least, a binder resin and a colorant. The toner core particle contains as the binder resin a particular polyester resin having a repeating unit derived from 1,2-propanediol. The shell layer contains a alcoholic hydroxy group containing resin having one or more types of repeating unit having an alcoholic hydroxy group. The proportion of an alcoholic hydroxy group containing monomer in the alcoholic hydroxy group containing resin is 1 mass % or more. The coverage ratio of the surface of the toner core particle with the shell layer is 75% or more.

This prevents water vapor inside the device from condensing on the photosensitive drum, thereby reducing the negative impact on print quality. [Solution] The image forming device 1 has a process cartridge 67 that can be attached to the main body housing 3, an exposure unit that exposes the photosensitive drum 61 to form an electrostatic latent image, a fixing unit 8 that has a heater 81A and fixes the developer image to a sheet, and a control unit 100 that controls the process cartridge 67, exposure unit, and fixing unit 8 and performs printing, and the control unit 100 executes count value acquisition control that acquires a count value C that changes depending on the number of sheets printed by fixing the developer image to a sheet by the fixing unit 8, and preparatory rotation control that rotates the photosensitive drum 61 and developing roller 71 without forming an electrostatic latent image on the photosensitive drum 61 when the process cartridge 67 is attached to the main body housing 3, and switches between executing the preparatory rotation control for a first period or a second period that is longer than the first period based on the count value C.

A display technology capable of displaying special images is provided. A display body (1) includes: a light-shielding layer (12) having a plurality of slits (SL) arranged at intervals in the width direction; and an image recording layer (22) spaced apart from a main surface of the light-shielding layer (12) and opposite it, and recording a latent image that is made visible by being partially hidden by the light-shielding layer (12).

A process cartridge includes a first unit including an image bearing member configured to carry an electrostatic latent image, and a second unit including a developer bearing member configured to develop the electrostatic latent image carried on the image bearing member into a toner image, the second unit being capable of being mounted on the first unit in a mounting direction. The first unit includes a moving member that moves the second unit mounted on the first unit at a mounting position to a detachment position. The second unit includes a storage unit that stores information about the second unit. The moving member is disposed on a first side of the process cartridge in a longitudinal direction of the image bearing member. An electrode of the storage unit is disposed on a second side of the process cartridge in the longitudinal direction.

An image forming apparatus includes an image carrying member, a charging device, an exposure device, a developing device, a toner container, a toner concentration sensor, a toner charge amount detection portion, and a control portion. The developing device includes a developer carrying member carrying a two-component developer and develops an electrostatic latent image into a toner image. The toner concentration sensor detects a toner concentration in the developing device. The toner charge amount detection portion detects a toner charge amount in the developing device. Based on a result of detection by the toner concentration sensor, the control portion controls replenishment of the developing device with the toner from the toner container. Based on the toner charge amount detected by the toner charge amount detection portion, the control portion executes first target value changing control of changing a target value of the toner concentration.

The present invention provides an image forming apparatus that can suppress image defects such as image fogging by suppressing contact charging between fluorine particles and toner due to the embedding of fluorine particles in the drum recesses, and contact charging between the toner and the drum recesses. [Solution] The image forming apparatus comprises an image carrier having a conductive substrate and a photosensitive layer laminated on the surface of the conductive substrate, a charging device, an exposure device, and a developing device. The developing device contains a non-magnetic one-component developer consisting only of toner and supplies the toner to the image carrier on which an electrostatic latent image has been formed. The toner comprises toner matrix particles and fluororesin particles with a number-average primary particle diameter of 100 nm to 300 nm that are externally added to the surface of the toner matrix particles. The amount of fluororesin particles added per 100 parts by mass of toner matrix particles is 1.2 parts by mass or less, and the number-average primary particle diameter r of the fluororesin particles and the arithmetic mean roughness Ra of the surface of the photosensitive layer satisfy r > Ra.

To provide an image forming apparatus capable of effectively removing deposits attached to a charged member. [Solution] The device comprises a photoreceptor having a charge injection layer containing conductive particles, a charging member in contact with the surface of the photoreceptor, a developing unit that develops an electrostatic latent image as a toner image, a transfer unit, and a control unit that controls the voltage applied to the charging member, and is capable of executing an image forming mode for transferring a toner image to a transfer member and a cleaning mode executed at a different timing from the image forming mode. In the cleaning mode, the control unit (i) periodically switches the voltage applied to the charging member within a range less than a discharge threshold relative to the surface potential of the photoreceptor before passing through the charging member, and (ii) sets the period of the voltage waveform pattern such that 0.05 ≤ Vpp_d / Vpp_t ≤ 0.865, where Vpp_t is the amplitude of the voltage and Vpp_d is the amplitude of the surface potential of the photoreceptor after passing through the charging member.

An electrophotographic device comprises an electrophotographic photosensitive element and a contact developing unit, which includes toner and a developing roller and is configured to bring the toner-carrying developing roller into contact with the electrophotographic photosensitive element to develop an electrostatic latent image formed on the surface of the electrophotographic photosensitive element. The electrophotographic photosensitive element comprises a surface layer containing a binder resin and an electron transport medium. The surface layer contains a polyester resin as the binder resin. The polyester resin comprises a structural unit represented by formula (P-1) and a structural unit represented by formula (P-2). The developing roller comprises a surface layer containing a compound represented by formula (1).

The invention provides a text-to-image method, device and equipment, a medium and a product, and relates to the technical field of image generation. The method comprises the following steps: taking a noise-added potential image, and pre-extracting image features, text data and training conditions; training the initial teacher model according to the noise-added potential image, the pre-extracted image features and training conditions to obtain a target teacher model; training the initial student model according to the text data, the noise-added potential image and the training condition to obtain a target student model; the user description text is taken, model initialization is carried out on the target student model, and an initialized target student model is obtained; and inputting the user description text into the initialized target student model to obtain a target image. The text-driven generation process of the student model is directly calibrated through accurate visual features perceived by the teacher model, the real consistency of the generated image and text description in details, structures and semantics is remarkably improved, and finally the accuracy of image generation is improved.

The invention relates to a seamless splicing grating, in particular to a method for manufacturing a seamless splicing grating based on a dynamic straight-edge diaphragm, which comprises the following steps of: aligning the edge of the dynamic straight-edge diaphragm with a splicing seam position mark on one side of a substrate, performing simple harmonic motion on the dynamic straight-edge diaphragm along the direction vertical to the splicing seam, realizing dynamic scanning and completing first interference exposure; the edge of the dynamic straight-edge diaphragm is aligned with the abutted seam position mark on the other side of the substrate, stripe locking is carried out by utilizing the grating latent image reserved by the first exposure, so that the dynamic straight-edge diaphragm carries out simple harmonic motion in the direction perpendicular to the abutted seam, dynamic scanning is realized, and second interference exposure is completed; carrying out unified development on the exposed substrate to obtain a photoresist grating mask without splicing seams, and transferring a grating structure on the mask to a dielectric substrate; according to the technical scheme, the defects that in the prior art, due to abutted seam modulation, the laser damage resistance is poor, and the machining difficulty is large can be effectively overcome.

Embodiments described herein relate to a method of developing a chemically amplified resist (CAR) that is provided over an underlayer that includes carbon and fluorine, where the CAR has been selectively exposed with a lithography process to form a latent image. In an embodiment, the method includes incorporating a metal into the CAR after the lithography process, and developing the CAR to form an opening in the CAR.

The utility model provides a kind of photosensitive unit and processing box, photosensitive unit includes waste powder bin shell, photosensitive drum and charging part, charging part is used to charge the surface of photosensitive drum, the surface of photosensitive drum is used to form latent electrostatic image, photosensitive drum and charging part are rotatably arranged in waste powder bin shell;Waste powder bin shell includes waste powder bin main body, first fixed part and second fixed part;First fixed part is used to fix cleaning doctor, cleaning doctor is used to clean waste powder remaining on photosensitive drum, second fixed part is used to fix support frame formed separately with waste powder bin shell, support frame is used to support waste powder cleaning part contacted with charging part, waste powder cleaning part is used to clean waste powder remaining on charging part;The cleaning doctor and support frame are not simultaneously mounted to waste powder bin main body, and the production cost of processing box can be reduced.

A method and an apparatus for generating and displaying a latent image, a storage medium, and an electronic device are provided. The method includes acquiring a behavior text vector representing a behavior state of a device and an attribute text vector representing a display attribute of the device, acquiring an image text vector and an image feature element of a basic image, combining vector values of the behavior text vector, the attribute text vector, and the image text vector to obtain a relevant vector combination, the relevant vector combination being a combination including a value of the behavior text vector, a value of the attribute text vector, and a value of the image text vector, inputting all the relevant vector combinations into a pre-trained semantic script generation model for processing to generate a semantic script text for describing latent image generation requirements, inputting the semantic script text and the image feature element into a pre-trained conditional image generation model for processing to generate a latent image corresponding to the behavior state of the device, and displaying the corresponding latent image based on the behavior state of the device.

This invention provides an electrophotographic apparatus that features a toner containing strontium titanate as an external additive and a highly durable electrophotographic photoreceptor, resulting in excellent transfer performance even in low-temperature, low-humidity environments. [Solution] An electrophotographic apparatus is provided, comprising: an electrophotographic photoreceptor having a surface layer containing resin X as a binder resin; charging means for charging the surface of the electrophotographic photoreceptor; exposure means for irradiating the charged surface of the electrophotographic photoreceptor with light to form an electrostatic latent image; developing means for supplying toner to the electrostatic latent image to form a toner image; and transfer means for transferring the toner image to a transfer medium, wherein the toner contains strontium titanate as an external additive, and the resin X contains a specific structural unit.

To provide a method for easily visualizing a latent image without requiring a discrimination tool such as a parallel line filter and a lenticular lens.SOLUTION: By a terminal including at least a display unit, an image processing unit, and any one of a storage unit and an imaging unit, from image data of a latent image pattern including a plurality of latent image elements in which a latent image is visualized by being periodically sampled, A latent image visualization method for visualizing a latent image hidden in a latent image pattern includes a step of displaying image data of the latent image pattern captured by an imaging unit or image data of the latent image pattern stored in advance in a storage unit on a display unit, and a step of reducing the image data of the latent image pattern by an image processing unit, thereby visualizing the latent image on the display unit.SELECTED DRAWING: Figure 6

The present application provides an image forming apparatus, an image forming method and a medium for solving the problem that the prior art fails to properly maintain the service life of a printer. The image forming apparatus of the present application comprises: a plurality of photosensitive bodies; a driving device for driving the plurality of photosensitive bodies to rotate; an exposure device for forming an electrostatic latent image by image exposure on at least one of the plurality of photosensitive bodies; a plurality of developing devices for performing development on a plurality of latent images formed on the plurality of photosensitive bodies by different color toners, so that the plurality of photosensitive bodies carry toner images; an intermediate transfer body, which is in contact with the plurality of imaging components at the same time, for transferring the toner images; and a controller configured to determine a target photosensitive body on which exposure is not performed according to an image forming job to be processed, and make the target photosensitive body rotate at a second speed lower than a preset first speed by the driving device. The present application can achieve the technical effect of preventing the expected service life of the image forming apparatus from being reduced.

To prevent a suction port from being blocked by toner accumulated in a toner receiver. [Solution] A developing device 18 includes a housing 60 that contains developer containing at least toner, a developer carrier 61 that carries the developer and supplies the toner to a latent image on an image carrier 16, a suction port 70 that sucks in toner that has scattered outside the housing 60 below the developer carrier 61, and a toner receiver 69 that receives toner that has scattered outside the housing 60 or toner that has fallen outside the housing 60 below the developer carrier 61, and the suction port 70 is positioned so that the angle α formed by the line segment C connecting the tip 69a of the toner receiver 69 protruding from the housing 60 to the lowest part 70a of the suction port 70 and the horizontal line extending horizontally from the tip 69a of the toner receiver 69 toward the housing 60 is greater than the angle of repose θ of the toner.

A developing device is provided including: a developer carrier that carries a developer and develops a latent image on a latent image bearer; and a casing. The casing includes: a developer container; a gap former that forms an inflow gap; a first conveyance path including a first conveyer that conveys the developer collected from the developer carrier; and a second conveyance path including a second conveyer that conveys the developer in a direction opposite to a developer conveying direction of the first conveyer. The inflow gap includes a first region where the developer is spiked by a magnetic pole of the developer carrier, and a second region in which a gap between the gap former and the developer carrier is larger than that in the first region. The first conveyer includes a delivery facilitator that facilitates delivery of the developer to the second conveyance path.

Disclosed is a development apparatus that includes a first roller to be supplied with developer accommodated in a first chamber, a first magnet, a second roller to which the developer is delivered from the first roller through a magnetic field generated by the first magnet, which is arranged to face the first roller, the second roller bearing and conveying the developer to collect the developer in a second chamber after the electrostatic latent image is developed, and a second magnet, in a case where ten-point average roughness of an outer circumferential surface of the first roller is Rz1 and ten-point average roughness of an outer circumferential surface of the second roller is Rz2, 0.35×Rz1≤Rz2 and 7 μm≤Rz1≤15 μm.

The present application provides an image forming apparatus and a light emitting element head. The image forming apparatus has: a toner image forming unit which forms a toner image using a first light emitting element column, a second light emitting element column, and an optical element for imaging light output of the light emitting element and exposing a photosensitive body to form a latent electrostatic image; a transfer unit which transfers the toner image to a recording medium; a fixing unit which fixes the toner image transferred to the recording medium to form an image; a switching unit which switches light emission of the first light emitting element column and the second light emitting element column at a switching position, the switching position being provided at any position in an overlapping position where the first light emitting element column and the second light emitting element column overlap; an acquisition unit which acquires information about a density difference at the switching position of the image formed on the recording medium; and a correction unit which corrects the density difference based on the information about the density difference.

This invention provides a toner for electrostatic latent image development that offers excellent heat resistance, low-temperature fixing properties, and electrostatic stability. [Solution] The toner for electrostatic latent image development comprises toner particles including toner core particles and a shell layer covering the toner core particles. The toner core particles include at least a binder resin and a colorant. The toner core particles include a specific polyester resin having repeating units derived from 1,2-propanediol as the binder resin. The shell layer includes an alcoholic hydroxyl group-containing resin containing one or more repeating units having alcoholic hydroxyl groups. The proportion of alcoholic hydroxyl group-containing monomers in the alcoholic hydroxyl group-containing resin is 1% by mass or more. The coverage rate of the shell layer on the surface of the toner core particles is 75% or more.

An image forming apparatus incudes a photosensitive member, a scanning optical unit and a control portion. The scanning optical unit is provided with a light source including a plurality of light emitting points and emitting laser lights form the plurality of light emitting points, respectively and a deflector deflecting each of the laser lights emitted from the plurality of light emitting points into a scanning direction. The scanning optical unit scans the photosensitive member with the plurality of laser lights deflected by the deflector and forms an electrostatic latent image on the photosensitive member. The control portion controls the scanning optical unit. Based on information regarding a light emitting point pitch as an interval between the plurality of light emitting points, the control portion identifies the light emitting point pitch.

To provide an electrostatic latent image developer carrier which features little charge fluctuations while printing for a long time, and is capable of suppressing toner scattering, carrier adhesion while printing solid images, and the like.SOLUTION: An electrostatic latent image developer carrier is provided, comprising a magnetic core particle and a coating layer containing a resin and at least partially covering a surface of the core particle. Defining t as an average thickness of the coating layer and s as a standard deviation of the thickness of the coating layer, a ratio s / t is 0.05-0.6.SELECTED DRAWING: Figure 1

Provided is an image forming apparatus that forms a toner image by developing an electrostatic latent image which is formed by charging and exposing an image bearing member, and transfers the toner image onto a transferred member. The image forming apparatus can perform developer collection to return a toner image on the image bearing member to developing unit. The image forming apparatus sets a first area in accordance with the toner density and a second area in which density is higher than the first area, along a rotating shaft direction in a collected area which is a target of developer collection, and performs control so that a second back contrast in the second area is higher than a first back contrast in the first area in a case of the developer collection.

A system and method is provided for enhancing an image using a machine learning model. The method includes: obtaining image data; and generating enhanced image data representing an enhanced image based on performing inference for the machine learning model. The machine learning model has an inference encoder configured to generate latent image feature data based on the image data and at least one decoder configured to receive the latent image feature data from the inference encoder. Knowledge is imparted into the inference encoder from one or more teacher encoders as a result of a knowledge transfer training process. The knowledge transfer training process includes: training each of the one or more teacher encoders as a part of a teacher network configured to perform an image reconstruction task based on learned knowledge obtained by the teacher encoder, and transferring the learned knowledge of the teacher encoder to the inference encoder.

The present invention provides a toner for developing electrostatic latent images and a method for manufacturing the toner for developing electrostatic latent images. The toner contains a binder resin which contains an amorphous polyester resin A, and a colorant. The amorphous polyester resin A is a polycondensate of an alcohol component, a carboxylic acid component, and polyethylene terephthalate. The colorant contains a naphthol AS-based pigment. The manufacturing method includes a step for melt-kneading at least the binder resin and the colorant, and a step for pulverizing a kneaded substance resulting from the previous step. The toner for developing electrostatic latent images according to the present invention is suitable for developing latent images and the like formed in electrophotography, electrostatic recording, electrostatic printing, or the like.