US Pat. No. 10,212,110

CLOUD SYSTEM AND METHOD OF DISPLAYING, BY CLOUD SYSTEM, CONTENT

HP PRINTING KOREA CO., LT...

1. A system, comprising:an image forming apparatus to:
display a chat room in which an account corresponding to the image forming apparatus and at least one account corresponding to at least one device are participating, the at least one device participating in the chat room including a display device,
generate scan data by scanning a document, and
assign the display device as a destination to which the scan data is to be transmitted through the chat room;
a cloud to:
receive the scan data from the image forming apparatus,
determine, based on a display capability of the display device, whether to convert the scan data to another format that is displayable by the display device according to the display capability of the display device, and
transmit one of the scan data and converted scan data to the display device based on the determination; and
the display device to display the one of the scan data and the converted scan data received from the cloud,
wherein
the cloud comprises a print service server having a representational state transfer application programming interface (REST API) module for an agent application installed in the display device and operable to communicate with the cloud, wherein the print service server is to receive network address information and nickname information of the display device from the display device and register the network address information and nickname information.

US Pat. No. 10,171,017

IMAGE FORMING APPARATUS, MOTOR CONTROL APPARATUS, AND METHOD OF CONTROLLING A MOTOR

HP PRINTING KOREA CO., LT...

1. An image forming apparatus, comprising:an engine portion to perform an image forming job;
a step motor, including a plurality of coils, to start the engine portion;
a driver to provide a predetermined constant current to a selected coil among the plurality of coils of the step motor, the driver including:
a driver circuit,
a coil selector, switchable to each of the plurality of coils, to switch to the selected coil among the plurality of coils, according to a control of the driver circuit, so that the predetermined constant current is supplied to the selected coil, and
a sensing resistor, connected in series with the selected coil and having one end connected to the coil selector and another end connected to ground, to measure a current that flows to the selected coil; and
a drive controller to sense a voltage value of the sensing resistor, to measure a load level of the step motor based on the sensed voltage value of the sensing resistor, to control the driver to provide the predetermined constant current that corresponds to the measured load level, and to determine whether the step motor is normally operated through a comparison of the measured load level with pre-stored load level information during the normal operation, the drive controller including a sensor to sense the voltage value of the sensing resistor, the sensor including a first low pass filter, connected to the one end of the sensing resistor of the driver, to sense an output voltage of the low pass filter as the voltage value of the sensing resistor, and
wherein
the drive controller further includes:
a second low pass filter to sense a constant current control value based on the predetermined constant current provided by the driver to the selected coil,
a first amplifier to amplify the sensed voltage value according to a first predetermined gain value to produce a first output value,
a second amplifier to amplify the sensed constant current control value according to a second predetermined gain value to produce a second output value,
a comparator to output a difference between the first output value and the second output value to obtain the measured load level of the step motor, and
a determinator to determine the predetermined constant current to be supplied to the step motor based on the measured load level.

US Pat. No. 10,162,297

IMAGE FORMING APPARATUS AND METHOD FOR CONTROLLING THE SAME AND COMPUTER-READABLE RECORDING MEDIUM

HP PRINTING KOREA CO., LT...

1. An image forming apparatus, comprising:a plurality of photosensitive drums;
a plurality of exposurers configured to respectively expose areas of surfaces of the plurality of photosensitive drums;
a plurality of developers configured to respectively dispose toner on the exposed areas of the plurality of photosensitive drums;
an intermediate transfer belt configured to receive the toner disposed on each of the exposed areas, to thereby form a pattern on the intermediate transfer belt; and
at least one processor configured to
control the plurality of photosensitive drums or the plurality of exposurers to form a printed pattern on the intermediate transfer belt at a predetermined first concentration in response to a print command being input, and
control the plurality of photosensitive drums or the plurality of exposurers to form a registration pattern on the intermediate transfer belt at a second concentration lower than the first concentration in response to a registration command being input.

US Pat. No. 10,234,802

IMAGE FORMING DEVICE AND METHOD

HP PRINTING KOREA CO., LT...

1. An image forming apparatus, comprising:an image former that forms an image on printing paper; and
an induction heating fusing device that fuses the image onto the printing paper and comprises:
a resonance circuit comprising an inductor that is inductively heated by a current to generate fusing heat;
a driver circuit that applies a current to the resonance circuit; and
a controller configured to drive the driver circuit in an A-mode in which a fusing operation is performed, and to determine whether the apparatus has an error in a B-mode in which magnitude of the current applied to the resonance circuit by the driver circuit is limited to less than a preset level.

US Pat. No. 10,180,647

IMAGE FORMING APPARATUS

HP PRINTING KOREA CO., LT...

1. An image forming apparatus comprising:a plurality of developing units to develop a visible image from an electrostatic latent image through a developer;
a transfer member provided to transfer the visible image developed by the plurality of developing units onto a printing medium and to rotate in a first direction;
a sensing unit including at least one sensor disposed opposite the transfer member, and at least one window disposed between the at least one sensor and the transfer member and corresponding to the at least one sensor, to sense the developer transferred onto the transfer member; and
a shutter device having a shutter movably provided with a displacement in the first direction of rotation of the transfer member,
wherein the shutter is to open and close the at least one window.

US Pat. No. 10,171,703

MOBILE APPARATUS, IMAGE SCAN APPARATUS AND METHOD FOR PERFORMING A SCANNING OPERATION AND GENERATING A SCAN IMAGE

HP PRINTING KOREA CO., LT...

1. A mobile apparatus, comprising:a user interface to allow a user to select an image scan apparatus;
a communication interface to transmit position information and time information of the mobile apparatus to the selected image scan apparatus, transmit a scan command to the selected image scan apparatus, and receive a plurality of pieces of image data having the position information and time information of the mobile apparatus from the selected image scan apparatus via a streaming method; and
a controller to generate a scan image using the plurality of pieces of image data having the position information and time information of the mobile apparatus,
wherein
a size of each of the plurality of pieces of image data is limited by a size of a scan buffer of the image scan apparatus,
for each of the plurality of pieces of image data, the communication interface is to receive an event message from the image scan apparatus while a scanning operation of the image scan apparatus is stopped indicating the scan buffer is full and a respective piece of image data among the plurality of pieces of image data is ready for retrieval, and
the communication interface is to transmit a request to the image scan apparatus to retrieve the respective piece of image data in response to receiving the event message.

US Pat. No. 10,180,654

CUSTOMER REPLACEMENT UNIT MEMORY CONTACT UNIT PRESSURED ACCORDING TO MOVEMENT OF TRAY IN AN IMAGE FORMING APPARATUS

HP PRINTING KOREA CO., LT...

1. An image forming apparatus, comprising:a main body;
a tray, slidably coupled to the main body, to receive a toner cartridge and be pushed into the main body by a push-in operation and pulled out from the main body by a pull-out operation;
a lever, hinge-coupled to the tray, to rotate in a first direction and a second direction opposite to the first direction according to the push-in operation of the tray and the pull-out operation of the tray, respectively;
a support frame to elastically support a customer replacement unit memory (CRUM) contact unit; and
a link member, hinge-coupled to the lever, to move in a direction of the push-in operation of the tray and in a direction of the pull-out operation of the tray according to the rotation of the lever to apply and release pressure on the CRUM contact unit supported by the support frame.

US Pat. No. 10,168,659

DEVELOPING UNIT TRANSFERRING DEVICE, IMAGE FORMING APPARATUS EMPLOYING THE DEVELOPING UNIT TRANSFERRING DEVICE, AND DEVELOPING UNIT SEPARATING METHOD OF THE IMAGE FORMING APPARATUS

HP PRINTING KOREA CO., LT...

1. An image forming apparatus comprising:a body;
a tray to receive a plurality of developing units mountable thereon, the plurality of developing units including a frontmost developing unit mountable at a first location adjacent to a front of the tray and a rearmost developing unit mountable at a second location adjacent to a rear of the tray, and the tray being movable to a first tray position at which the tray is inside the body and a second tray position at which at least a portion of the tray is outside the body; and
a position adjustment unit, disposed on at least one side of the tray and movable with respect to the tray, to rotatably support the plurality of developing units,
wherein, when the position adjustment unit is moved upward with respect to the tray as the tray is moved rearward to the second tray position, the plurality of developing units are rotated through contact with the position adjustment unit during the upward movement of the position adjustment unit, at a time the plurality of developing units are outside the body.

US Pat. No. 10,171,688

MANAGEMENT SERVER TO RECEIVE SCANNED IMAGES AND ALIGN THE SCANNED IMAGES BASED ON PAGE NUMBERS INCLUDED IN THE SCANNED IMAGES

HP PRINTING KOREA CO., LT...

1. A non-transitory computer-readable recording medium in which a program code for executing a control method implemented by a processor of a management server connectable to a plurality of image scanning apparatuses is recorded, the control method comprising:receiving a plurality of scanned images having page information including a page number of the plurality of scanned images, from each of the plurality of image scanning apparatuses that scan each of a plurality of divided manuscripts that are divided from a manuscript;
obtaining, at the processor, the page number of each of the plurality of received scanned images based on character recognition performed on the plurality of received scanned images;
sequentially aligning, at the processor, the plurality of received scanned images based on the page number in the plurality of received scanned images;
storing, at the processor, the plurality of aligned scanned images in one file in a storage; and
determining, at the processor, whether the plurality of received scanned images are a scanning image corresponding to a new job or a scanning image corresponding to an existing job based on job identification information corresponding to the manuscript for identifying each of a plurality of scanning jobs, the job identification information being included in each of the plurality of scanned images received from each of the plurality of image scanning apparatuses.

US Pat. No. 10,264,145

PRINTING DATA BY AN IMAGE FORMING APPARATUS USING A SAME OR DIFFERENT NETWORK AS A PRINTING DATA STORAGE DEVICE

HP Printing Korea Co., Lt...

1. A method of operating a server, the method comprising:receiving, through a first network, metadata corresponding to printing data from a printing data storage device that stores the printing data;
receiving, through the first network, and storing a part of the printing data after the metadata corresponding to the printing data is received from the printing data storage device that stores the printing data;
receiving, from an image forming apparatus through the first network, a request to transmit printing job information;
determining a transmission route of the printing data based on whether the printing data storage device and the image forming apparatus are capable of communicating with each other through a second network;
generating the printing job information comprising the metadata and the transmission route; and
transmitting the printing job information to the image forming apparatus through the first network.

US Pat. No. 10,209,662

SCANNER APPARATUS, IMAGE FORMING APPARATUS EMPLOYING THE SAME, AND SKEW CORRECTION METHOD

HP PRINTING KOREA CO., LT...

1. A scanner apparatus, comprising:a document feeding path in which a reading device to read an image from a document is provided;
a first registration roller to feed the document along the document feeding path, and located at an upstream side of the reading device based on a feeding direction of the document;
a second registration roller aligned with the first registration roller in a width direction of the document, and disposed spaced apart from the first registration roller in the width direction;
a registration motor to drive the first registration roller independently of the second registration roller; and
a main motor to drive the second registration roller independently of the first registration roller.

US Pat. No. 10,201,985

DRYER FOR INKJET IMAGE FORMING APPARATUS AND IMAGE FORMING SYSTEM HAVING THE SAME

HP PRINTING KOREA CO., LT...

1. A dryer for an inkjet image forming apparatus, comprising:a heating device detachably installed in the inkjet image forming apparatus, the heating device to:
receive a print medium, onto which an inkjet image is formed by the inkjet image forming apparatus, and
dry the received print medium by applying heat from a first direction to dry a first surface of the print medium and by applying heat from a second direction to dry a second surface of the print medium that is opposite to the first surface;
a flattening device to apply heat to the print medium to flatten the print medium that is dried by the heating device; and
a decurling device to curl the print medium that is flattened by the flattening device, in a decurling direction opposite to a direction of a curl of the print medium that occurs in a process of passing through the flattening device.

US Pat. No. 10,189,667

POST-PROCESSING APPARATUS AND IMAGE FORMING APPARATUS INCLUDING SAME

HP PRINTING KOREA CO., LT...

1. A post-processing apparatus couplable to an image forming apparatus comprising:a paper discharging roller to
convey, from a conveying path, a first paper discharged from the image forming apparatus to a standby path connected to the conveying path,
convey the first paper from the standby path and a second paper sequentially discharged from the image forming apparatus from the conveying path, to an intermediate loading part, in a state in which a leading end of the first paper toward the intermediate loading part protrudes more than a leading end of the second paper toward the intermediate loading part;
a main paddle part to convey the first paper and the second paper conveyed to the intermediate loading part to a compiling region;
a reverse roller arranged at a lower side of the main paddle part to convey, along with the main paddle part, the first paper and the second paper to the compiling region; and
a binding part to process the first paper and the second paper conveyed to the compiling region.

US Pat. No. 10,313,538

IMAGE FORMING APPARATUS AND SCANNING METHOD BY IMAGE FORMING APPARATUS FOR COMBINING SEPARATELY SCANNED DOCUMENTS

HP Printing Korea Co., Lt...

1. An image forming apparatus, comprising:an input panel to:
receive a command to perform a scanning operation, and
receive a selection of a scanning option;
a communication chip to transmit the command to perform the scanning operation, the selected scanning option, and state information of the image forming apparatus to another image forming apparatus;
a scanner to:
based on the command to perform the scanning operation, scan a first document according to the scanning option and the state information of the image forming apparatus, and
generate first scanned data; and
at least one processor to:
receive, from said another image forming apparatus, second scanned data corresponding to a second document, and
combine the first scanned data and the second scanned data,
wherein, based on the command to perform the scanning operation, the second document is scanned by said another image forming apparatus according to the scanning option and the state information transmitted by the communication chip.

US Pat. No. 10,289,879

METHOD AND APPARATUS TO WRITE TAG USING NEAR FIELD COMMUNICATION

HP Printing Korea Co., Lt...

1. A method of writing a near field communication (NFC) tag using a mobile terminal, the method comprising:extracting, by the mobile terminal from information transmitted by an image forming apparatus when establishing a wireless connection with the image forming apparatus, a value of the information corresponding to a field of a data structure of the NFC tag, the establishing of the wireless connection being separate from NFC tagging;
generating tag information including the extracted value by arranging the extracted value according to the data structure; and
writing the tag information to the NFC tag through NFC tagging,
wherein information about the data structure of the NFC tag is previously stored in the mobile terminal.

US Pat. No. 10,291,797

IMAGE SCANNING APPARATUS TO DETERMINE WHETHER A SECOND SCAN IMAGE IS A DUPLICATE IMAGE OF A FIRST SCAN IMAGE AND CONTROLLING METHOD THEREOF

HP PRINTING KOREA CO., LT...

1. An image scanning apparatus, comprising:a display;
a scanner to generate a first scan image and to selectively generate a second scan image;
a cover to cover the scanner; and
a processor:
to determine whether the cover is in a closed state or an open state before the first scan image and the second scan image are generated,
when the cover is determined to be in the open state, to compare the generated first scan image with the second scan image generated by the scanner and determine whether the generated second scan image is a duplicate image of the generated first scan image,
when the cover is determined to be in the closed state, to determine whether an open and close operation of the cover has occurred after the first scan image is generated while the cover is in the closed state and before the second scan image is generated,
in response to determining that the open and close operation has occurred, determine that the generated second scan image is not the duplicate image of the generated first scan image without comparing the generated first scan image with the generated second scan image, the second scan image being generated by the scanner after determining that the open and close operation has occurred, and
in response to determining that the generated second scan image is the duplicate image of the generated first scan image, when the cover is determined to be in the open state, control the display to display a notification message.

US Pat. No. 10,250,774

CONTENT TRANSMITTING METHOD AND APPARATUS THEREFOR

HP Printing Korea Co., Lt...

1. An electronic apparatus comprising:a transceiver;
a display;
a memory; and
at least one processor to:
receive a user input for selecting a user interface (UI) element displayed on a screen of the display,
generate a code, comprising identification information of the electronic apparatus, based on the user input of selecting the UI element,
receive receiver information transmitted from an external device that received the code,
control the display to display the receiver information on a first area of the screen of the display, and
control the transceiver to transmit content to an external source based on the receiver information.

US Pat. No. 10,175,648

PAPER SENSOR TO SENSE PAPER PASSING THROUGH FUSER

HP PRINTING KOREA CO., LT...

1. An image forming apparatus comprising:a main body;
a fan to discharge air from inside the main body to outside of the main body; and
a paper sensor arranged between the fan and a conveyance path of paper that has passed through a fuser of the image forming apparatus, and to sense the paper passing through the fuser, the paper sensor including:
a sensor including a body portion having:
a first surface facing the conveyance path to block a flow of the air inside the main body moving from the conveyance path toward light sensing area of the paper sensor open toward the fan,
a second surface facing toward the fan and away from the conveyance path, and
a light emitting portion and a light receiving portion arranged on the second surface to be spaced apart from each other and to face each other, the light sensing area provided between the light emitting portion and the light receiving portion.

US Pat. No. 10,162,301

IMAGE FORMING APPARATUS

HP PRINTING KOREA CO., LT...

1. An image forming apparatus comprising:a main body;
a developing device including
a photosensitive unit having a photoreceptor, and
a developing unit having a developing roller to contact and separate from the photoreceptor;
a light scanning unit including
a light source to generate light to form an electrostatic latent image on the photoreceptor by applying the light onto the photoreceptor, and
a window through which the light generated by the light source is transmitted;
a shutter unit to open and close the window;
a plurality of pressing units to
press the developing unit to cause the developing roller separated from the photoreceptor to contact the photoreceptor, and
cause the shutter unit to open and close the window,each pressing unit of the plurality of pressing units disposed to be spaced apart along in a longitudinal direction of the developing unit; andan operating unit connected to the plurality of pressing units, the operating unit movable between
an operating position to generate a pressing force by the plurality of pressing units to press the developing unit, and
a standby position to release the pressing force.

US Pat. No. 10,440,206

FAX FUNCTION DIAGNOSIS METHOD, AND APPARATUS FOR PERFORMING THE METHOD

HP Printing Korea Co., Lt...

1. A fax function diagnosis method comprising:receiving a diagnosis request to diagnose a fax function of an image forming apparatus, the diagnosis request being received in an email;
diagnosing the fax function of the image forming apparatus by transmitting or receiving a test page; and
performing an operation based on a result of the diagnosing,
wherein a title of the email includes a diagnosis item and a fax number subject to diagnosis.

US Pat. No. 10,437,191

IMAGE FORMING APPARATUS

HP PRINTING KOREA CO., LT...

1. An image forming apparatus comprising:an apparatus body;
a printing media cassette to receive printing media, the printing media cassette movably coupled to the apparatus body; and
a lever movably disposed in the apparatus body, the lever to contact the printing media cassette to pull the printing media cassette into the apparatus body and to separate from the printing media cassette when the printing media cassette is fully closed.

US Pat. No. 10,250,460

MULTIFUNCTIONAL PLATFORM SYSTEM WITH DEVICE MANAGEMENT MECHANISM AND METHOD OF OPERATION THEREOF

HP PRINTING KOREA CO., LT...

1. A platform management system, comprising:an agent host device, including:
a controller to implement a device smart agent of the agent host device to:
receive a management request to maintain and/or manage at least one device, the management request being other than a request for the at least one device to perform a primary device function of the at least one device,
calculate a projected resource usage for the agent host device, the projected resource usage reflecting a consumption of power and/or memory for an anticipated execution of the management request,
determine a performance degradation of a primary device function of the agent host device based on the projected resource usage,
determine a request type of the management request and generate an inter-device communication based on the request type of the management request, when the performance degradation is less than a performance degradation threshold value, and
generate a platform management response to notify a platform management unit that execution of the management request will degrade performance of the primary device function of the agent host device, when the performance degradation is not less than the performance degradation threshold value; and
a communication unit, comprising at least one electronic component, coupled to the controller, to transmit the inter-device communication from the device smart agent for receipt by a non-agent device or an agent enabled device and to transmit the platform management response to the platform management unit.

US Pat. No. 10,234,813

IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING THE SAME

HP PRINTING KOREA CO., LT...

1. An image forming apparatus, comprising:a tray feeder to feed a printing medium placed on a tray of the image forming apparatus, to an image former of the image forming apparatus, the tray moveable to be in a first position and a second position;
a cassette feeder to feed a printing medium placed in a cassette of the image forming apparatus, to the image former;
a power train to transmit power generated from a driving motor; and
a power switching unit to switch the power transmitted from the power train to:
the tray feeder when the tray is in the first position, to feed a printing medium placed on the tray to the image former, and
the cassette feeder when the tray is in the second position, to feed a printing medium placed in the cassette.
US Pat. No. 10,216,113

ROLLER FOR IMAGE FORMING APPARATUS

HP PRINTING KOREA CO., LT...

1. A roller for an image forming apparatus comprising:a shaft;
an elastic layer covering an outer circumference of the shaft; and
a coating layer formed on the elastic layer, the coating layer including acryl polyol and ?-caprolactone polyol in a mixture cross-linked by isocyanate.

US Pat. No. 10,496,037

CUSTOMER REPLACEMENT UNIT MEMORY CONTACT UNIT PRESSURED ACCORDING TO MOVEMENT OF TRAY IN AN IMAGE FORMING APPARATUS

HP PRINTING KOREA CO., LT...

1. An image forming apparatus, comprising:a main body;
a tray, slidably coupled to the main body, to receive a toner cartridge;
a lever, hinge-coupled to the tray, to rotate in a first direction when the tray is pushed into the main body and to rotate in a second direction opposite to the first direction when the tray is pulled out from the main body; and
a link member, hinge-coupled to the lever, to move in a third direction when the lever is rotated in the first direction so that pressure is applied to a customer replacement unit memory (CRUM) contact unit and to move in a fourth direction opposite to the third direction when the lever is rotated in the second direction so that the pressure is released from the CRUM contact unit.

US Pat. No. 10,484,567

IMAGE ACQUIRING APPARATUS AND METHOD AND IMAGE FORMING APPARATUS

HP PRINTING KOREA CO., LT...

1. An image acquiring method by an image acquiring apparatus, the method comprising:in response to an instruction to acquire a single-side image formed on a first surface of a document,
acquiring, by a first image sensor, the single-side image and acquiring, by a second image sensor as a penetrated image sensor, a penetrated image of same single-side image shown through a second surface of the document, while the document is being fed; and
image processing, by a processor, the single-side image, based on the acquired penetrated image of the same single-side image shown through the second surface of the document,
wherein,
the acquiring of the penetrated image includes determining whether the penetrated image is a text image or a picture image, and
the image processing of the single-side image includes sharpening the single-side image when the penetrated image is the text image.

US Pat. No. 10,289,351

METHOD AND IMAGE FORMING APPARATUS USING NEAR FIELD COMMUNICATION

HP Printing Korea Co., Lt...

23. A mobile terminal comprising:a near field communication (NFC) circuit to receive information from an image forming apparatus via an NFC tagging, the information comprising at least one of an application identifier or application installation information;
a memory to store a program; and
at least one processor, by executing the program, to:
determine whether a mobile printing application based on the information is installed on the mobile terminal, the mobile printing application for controlling a print function, and
control, when it is determined that the mobile printing application is not installed on the mobile terminal, to provide a guide for installation of the mobile printing application based on the information.

US Pat. No. 10,218,871

LIGHT SCANNING UNIT AND IMAGE FORMING APPARATUS HAVING THE SAME

HP PRINTING KOREA CO., LT...

1. A light scanning unit, comprising:a housing;
a plurality of light sources;
an optical deflector including a rotational member having an axis of rotation about which the rotational member is to rotate, and disposed to deflect light incident obliquely from the plurality of light sources;
a plurality of reflective members disposed to reflect the light deflected by the optical deflector to a plurality of surfaces, which are to be scanned and correspond to the plurality of light sources, and disposed such that scan lines on surfaces disposed on opposite sides of the axis of rotation of the optical deflector among the plurality of surfaces to be scanned are bent in a same direction, the plurality of reflective members including:
a first reflective member to reflect light from the optical deflector,
a second reflective member to reflect light from the optical deflector,
a third reflective member to reflect the light reflected from the first reflective member to a first surface among the plurality of surfaces, and
a fourth reflective member to reflect the light reflected from the second reflective member to a second surface among the plurality of surfaces;
a first optical imaging device provided on a light path between the third reflective member and the first surface; and
a second optical imaging device provided on a light path between the fourth reflective member and the second surface, the second optical imaging device being more distant from an inner side of the housing than the first optical imaging device, and the inner side of the housing being between the plurality of reflective members and the plurality of surfaces.

US Pat. No. 10,409,214

PRESSURIZING UNIT TO APPLY FORCE TO DEVELOPING UNIT OF DEVELOPMENT CARTRIDGE

HP PRINTING KOREA CO., LT...

1. A development cartridge for an image forming apparatus, the development cartridge comprising:a photosensitive unit including a photosensitive drum;
a developing unit including a developing roller, the developing unit being rotatable with respect to a hinge shaft provided in the photosensitive unit to a development position where a development nip is formed by contact between the developing roller and the photosensitive drum and rotatable with respect to the hinge shaft to a release position where the development nip is released; and
a pressurizing unit rotatable in a first direction away from the photosensitive drum to a first position to apply a first elastic force to the developing unit to maintain the developing unit in the development position, and rotatable in a second direction toward the photosensitive drum to a second position to apply a second elastic force to the developing unit to maintain the developing unit in the release position,
wherein
one end of the pressurizing unit is mounted on a rotation shaft provided in the photosensitive unit to rotate about the rotation shaft, and another end of the pressurizing unit is to contact the developing unit to apply the first elastic force and the second elastic force, and
an axis of the hinge shaft and an axis of the rotation shaft are parallel to one another.

US Pat. No. 10,306,087

HINGE APPARATUS FOR COVER OF IMAGE FORMING APPARATUS

HP PRINTING KOREA CO., LT...

1. A hinge couplable to a glass cover of an image forming apparatus, the hinge comprising:a hinge housing to be insertable into and withdrawable from an opening in a body of the image forming apparatus,
the hinge housing including a housing chamber and a pressure device movable by pressing and depressing within the housing chamber; and
a hinge cam to couple to the glass cover and pivotably coupled to the hinge housing to support pivoting of the glass cover while the hinge cam slidably contacts the pressure device to press and depress the pressure device within the housing chamber to control the pivoting.

US Pat. No. 10,289,062

DEVELOPING CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS USING SAME

HP PRINTING KOREA CO., LT...

1. A development cartridge attachable/detachable to/from a main body of an image forming apparatus, the development cartridge comprising:a photosensitive drum to form an electrostatic latent image on the photosensitive drum;
a developer roller to develop the electrostatic latent image by supplying a developer to the photosensitive drum, the developer roller including a rotatable shaft;
a housing to support the photosensitive drum and the developer roller;
a developer roller gear provided on the rotatable shaft of the developer roller to connect to a driving gear of a driving coupler located coaxially with the driving gear in the main body when the development cartridge is attached to the main body; and
a driven coupler provided at an end of the photosensitive drum to couple based on shaft coupling to the driving coupler located coaxially with the driving gear in the main body when the development cartridge is attached to the main body.

US Pat. No. 10,509,340

IMAGE FORMING APPARATUS AND METHOD FOR COLOR REGISTRATION CORRECTION

HP PRINTING KOREA CO., LT...

1. An image forming apparatus comprising:an image former including a plurality of photosensitive drums to print, on a printing paper, a plurality of lines that are oriented perpendicular to a main scanning direction of the image former to be arranged at predetermined intervals along the main scanning direction,
each line of the plurality of lines including a plurality of colored sub-lines oriented perpendicular to the main scanning direction to be formed along a sub-scanning direction of the image former by corresponding photosensitive drums, and
at least two sub-lines among the plurality of sub-lines printed using a different respective one of the plurality of photosensitive drums;
a scanner to scan the printing paper, on which the plurality of lines is printed, to obtain a scanned image of the plurality of lines; and
at least one processor to perform color registration correction using the scanned image.

US Pat. No. 10,466,621

DEVELOPING CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS EMPLOYING SAME

HP PRINTING KOREA CO., LT...

1. A developing cartridge comprising:a photosensitive unit including a photosensitive drum;
a developing unit including a developing roller, the developing unit coupled to the photosensitive unit to be movable to:
a release position at which the developing roller is spaced apart from the photosensitive drum, and
a developing position at which the developing roller contacts the photosensitive drum to form a developing nip;
an elastic member to provide an elastic force in a direction to maintain the developing unit at the developing position;
a movable member including a gear portion, the movable member movable to:
a first position to cause the developing unit to move to the release position, and
a second position to cause the developing unit to move to the developing position;
a driving gear rotatable in a first direction and a second direction; and
a switching member connected to the driving gear, the switching member to switch between:
a third position at which the switching member engages the gear portion to transmit power from the driving gear to the movable member from the second position to the first position, as the driving gear rotates in the first direction, and
a fourth position at which the switching member disengages the gear portion to allow the movable member to move from the first position to the second position, as the driving gear rotates in the second direction.

US Pat. No. 10,466,626

SHEET SUPPLYING APPARATUS, SHEET PROCESSING APPARATUS EMPLOYING THE SAME, AND IMAGE FORMING APPARATUS

HP PRINTING KOREA CO., LT...

1. A sheet supplying apparatus, comprising:a loading table to accommodate one or more sheets of a printing medium;
a pickup member to pick up a sheet from the loading table;
an alignment member pivotable to an alignment location for blocking and aligning a fore-end of a sheet on the loading table, and to a transport-allowing location for allowing a sheet picked up by the pickup member to be transported;
a pivoting shaft to which the alignment member is coupled;
a cam gear comprising a gear portion, a tooth-omitted portion, and a cam portion to switch the alignment member between the alignment location and the transport-allowing location at first and second rotating positions of the cam gear such that the alignment member pivots away from the cam gear when the alignment member is switched to the alignment location and pivots toward the cam gear when the alignment member is switched to the transport-allowing location;
a lever, coupled to the pivoting shaft, to selectively contact the cam portion, wherein:
when the cam gear is rotated to the first rotating position, the cam portion interacts with the lever to position the alignment member at the alignment location, and
when the cam gear is rotated to the second rotating position, the cam portion is to be spaced apart from the lever to switch the alignment member to the transport-allowing location;
a main gear;
a swing arm pivotable about a same axis as a rotation axis of the main gear; and
first and second swing gears supported by the swing arm to interlock with the main gear, to selectively interlock with the gear portion according to a rotating direction of the main gear, and to rotate the cam gear to the first and second rotating positions.

US Pat. No. 10,469,713

IMAGE FORMING APPARATUS AND CONTROL METHOD OF THEREOF

HP PRINTING KOREA CO., LT...

14. A control method of an image forming apparatus, comprising:generating a scanned image by scanning a medium on which an image is formed;
generating color information of a color of the medium using a determined area of the scanned image;
determining whether the color of the medium is within or outside a white color range based on a settable color range and/or a settable brightness range; and
performing a first or a second gamma-correction of a color of an entire area of the scanned image based on the color of the medium, in response to the determining whether the color of the medium is within or outside the white color range, to print the gamma-corrected scanned image,
wherein
provided the color of the medium is outside the white color range according to the determining, perform the first gamma-correction of the color of the entire area of the scanned image according to pre-stored first gamma data, and
provided the color of the medium is within the white color range according to the determining, perform the second gamma-correction of the color of the entire area of the scanned image according to second gamma data which is generated by applying the generated color information of the color of the medium to the first gamma data.

US Pat. No. 10,437,164

TONER FOR DEVELOPING ELECTROSTATIC IMAGE

HP PRINTING KOREA CO., LT...

1. A toner for developing an electrostatic image, the toner comprising:a particle of the toner including:
a releasing agent having a solubility parameter (SP(Wax)) [(J/cm3)0.5];
a binder resin having a solubility parameter (SP(Binder)) [(J/cm3)0.5], to satisfy
|SP(Binder)?SP(Wax)|>5; and
a coloring agent,
wherein the releasing agent is arranged in the particle of the toner to satisfy conditions of:
(W(L)/T(L))?0.1, and
15 where,
Nstain refers to a number of stained releasing agent domains when the particle of the toner is stained with ruthenium tetraoxide (RuO4) and a cross section of the particle of the toner is observed,
W(L) refers to a longest length of lengths of the stained releasing agent domains, and
T(L) refers to a longest length of the cross section of the particle of the toner.

US Pat. No. 10,394,570

METHOD OF GENERATING BOOT IMAGE FOR FAST BOOTING AND IMAGE FORMING APPARATUS FOR PERFORMING THE METHOD, AND METHOD OF PERFORMING FAST BOOTING AND IMAGE FORMING APPARATUS FOR PERFORMING THE METHOD

HP PRINTING KOREA CO., LT...

1. A method of generating a boot image for fast booting an image forming apparatus, the method comprising:in response to a first power-on of the image forming apparatus, initializing a bootloader to begin booting of the image forming apparatus;
detecting a hardware setting change in the image forming apparatus;
in response to detecting the hardware setting change, displaying boot modes on a display of a user interface coupled to the image forming apparatus, the user interface to receive an input selecting one of the displayed boot modes, the displayed boot modes including a boot image generating mode and a normal boot mode; and
in response to the input selecting the boot image generating mode:
initializing, using at least one processor, an operating system and at least one application installed in the image forming apparatus,
terminating processes that are not used to execute the operating system and the at least one application, from among processes that are performed when the initializing of the operating system and the at least one application is completed,
suspending remaining processes performed in the image forming apparatus, and
generating the boot image for fast booting while the remaining processes are suspended, the generated boot image for fast booting including information regarding a system state of the image forming apparatus;
in response to a second power-on of the image forming apparatus, from a power-off condition of the image forming apparatus and subsequent to the first power-on of the image forming apparatus, performing fast booting by:
initializing the bootloader,
determining whether the generated boot image for fast booting has an error,
in response to determining the generated boot image for fast booting does not have the error, loading the generated boot image for fast booting and restoring the image forming apparatus to the system state included in the generated boot image for fast booting before re-initializing the at least one application, and
in response to determining the generated boot image for fast booting has the error:
displaying fixing modes on the display of the user interface, the user interface to receive an input selecting one of the displayed fixing modes, the displayed fixing modes including the boot image generating mode, a backup boot image replacing mode, and a normal booting switching mode, and
fixing the error according to the input selecting one of the displayed fixing modes by:
generating another boot image for fast booting when the user interface receives the input selecting the boot image generating mode from among the displayed fixing modes,
retrieving a backup copy of the boot image for fast booting when the user interface receives the input selecting the backup boot image replacing mode from among the displayed fixing modes, and
performing a normal booting when the user interface receives the input selecting the normal booting switching mode from among the displayed fixing modes.

US Pat. No. 10,324,402

BELT TYPE FIXING APPARATUS AND IMAGE FORMING APPARATUS HAVING THE SAME

HP PRINTING KOREA CO., LT...

1. A belt type fixing apparatus, comprising:a fixing belt;
a fixing roller disposed to face the fixing belt;
a nip forming member disposed inside the fixing belt and to press the fixing belt to the fixing roller to form a fixing nip;
first and second regulating surfaces, facing toward one another in an axial direction of the fixing belt and disposed at opposite ends of the nip forming member, to restrict an axial movement of the fixing belt; and
first and second guide surfaces, disposed inside the fixing belt and facing in an outward radial direction of the fixing belt toward an inner surface of the fixing belt, to guide rotation of the fixing belt,
wherein
the first regulating surface includes at least one first regulating step portion not in contact with one end of the fixing belt and the second regulating surface includes at least one second regulating step portion not in contact with another end of the fixing belt,
the first guide surface includes at least one first guide step portion not in contact with the inner surface of the fixing belt and the second guide surface includes at least one second guide step portion not in contact with the inner surface of the fixing belt, and
the at least one first regulating step portion and the at least one first guide step portion alternate with respect to one another in a circumferential direction of the fixing belt.

US Pat. No. 10,298,786

METHOD FOR PERFORMING JOB BY USING WIDGET, AND IMAGE FORMING APPARATUS FOR PERFORMING THE SAME

HP PRINTING KOREA CO., LT...

1. A method comprising:displaying a widget, in a first state, on a display of an image forming apparatus, the widget including a first button to start a job in the image forming apparatus and a preview area adjacent to the first button to display in real time progress of the job being performed by the image forming apparatus;
receiving a selection of the first button to start the job;
in response to receiving the selection of the first button to start the job:
providing a control signal to start the image forming apparatus to perform the job,
receiving information regarding a progress of the job being performed by the image forming apparatus,
changing the widget to a second state by changing the first button to a second button that displays the progress of the job by displaying a completion rate of the lob on the second button while the job is being performed by the image forming apparatus, and
displaying, in the preview area included in the widget, a preview screen which includes an image of a document corresponding to the job that reflects in real time progress of the job being performed by the image forming apparatus with respect to the document; and
in response to the job being completed by the image forming apparatus, changing the widget to another state by changing the second button back to the first button,
wherein the job includes at least one of a copy operation, a printing operation, or a scanning operation of the image forming apparatus.

US Pat. No. 10,298,809

DEVICE FOR SUPPORTING CLOUD PRINT SERVICE AND METHOD OF PROVIDING CLOUD PRINT SERVICE

HP PRINTING KOREA CO., LT...

1. A device to support a print service, the device comprising memory to store executable instructions and at least one processor to execute the instructions to:implement, in the memory,
a system area accessible with an access authority to access the system area and inaccessible by a user not having the access authority to the system area, and in the system area, print data associated with the print service is to be generated, and
an application area accessible by the user not having the access authority to the system area, and in the application area, the print data is to be acquired from the system area and transmittable from the application area to at least one external server associated with the print service;
in response to a request, control a process to acquire in the application area the print data generated in the system area;
provide a user interface to receive authentication information associated with performing a user authentication to transmit the print data acquired in the application area to the at least one external server, when the print data generated in the system area is acquired in the application area; and
transmit the print data acquired in the application area to the at least one external server, in response to a successful authentication of the user based on the received authentication information.

US Pat. No. 10,564,568

ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS AND METHOD FOR DETECTING RELEASE OF DEVELOPMENT NIP

HP PRINTING KOREA CO., LT...

1. An image forming apparatus comprising:a photoconductor;
a charging member to charge the photoconductor;
an exposure unit to expose the photoconductor to light and form an electrostatic latent image on the photoconductor;
a developing roller to provide toner to the electrostatic latent image and develop the electrostatic latent image;
a development nip operator to move the developing roller to
a first location where the developing roller contacts the photoconductor and forms a development nip and
a second location where the developing roller is moved away from the photoconductor and the development nip is released;
a light blocking member to be moved, in conjunction with the development nip operator, to
a passing location where the light is passed when the development nip is formed, and
a blocking location where the light is blocked when the development nip is released; and
a controller to detect whether the development nip is released based on
a first surface potential of the photoconductor charged by the charging member in a state in which the development nip is formed, and
a second surface potential of the photoconductor after the photoconductor charged by the charging member is exposed to the light by the exposure unit in a state in which the development nip operator is controlled to release the development nip.

US Pat. No. 10,474,406

METHOD OF PRINTING CONTENT SHARED BETWEEN APPLICATIONS AND COMPUTING APPARATUS TO PERFORM THE METHOD

HP PRINTING KOREA CO., LT...

1. A method of printing through a share function of an operating system (OS), the method comprising:by at least one processor to execute computer-executable instructions stored in at east one memory to cause:
when executing a source application to use a content in a displayed window, in response to a share action to execute the share function of the OS, activating, by the share function of the OS, a companion window to the window of the source application to display a selectable link corresponding to a printing application, according to a determination that a type of the content corresponds to a type of shareable content registered in association with the source application and to a type of shareable content registered in association with the printing application; and
in response to a selection of the link through the companion window, executing the printing application in the companion window to,
display a print setting through the companion window, according to the type of shared content to complete the print setting to control generation of printing data, when the print setting is completed through the companion window,
discover, through the companion window, an image forming apparatus capable of printing the content according to the print setting, and
in response to a print command through the companion window, generate, according to the completed print setting, the printing data transmittable to a discovered image forming apparatus independent of an image forming apparatus driver associable by the OS with the image forming apparatus, to print the shared content by the image forming apparatus,
wherein the activated companion window includes a user interface (UI) to display, in the activated companion window, a preview of the shared content and the print setting of the image forming apparatus for the shared content, and
the print setting of the image forming apparatus includes different types of printing-options according to the type of the content of the shared content.

US Pat. No. 10,452,011

FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME

HP PRINTING KOREA CO., LT...

1. A fixing device through which a recording medium, on which an electrical toner image is recordable, passes through, comprising:a fixing belt that is rotatable in a movement direction of the recording medium and includes an inner circumferential surface and an outer circumferential surface;
a pressure roller to pressure-contact the outer circumferential surface of the fixing belt and to form a fixing nip portion between the pressure roller and the fixing belt to pass through the recording medium through the fixing nip portion in the movement direction of the fixing belt; and
a contact member located inside the fixing belt and including a contact portion to contact the inner circumferential surface of the fixing belt,
wherein the contact portion includes a surface that faces the pressure roller, the surface including,
a plurality of protrusions that protrude from the surface toward the pressure roller, and
at least one lubricant supporting protrusion that protrudes from the surface toward the pressure roller and disposed in the movement direction of the fixing belt to support distribution of a lubricant between the surface and the inner circumferential surface of the fixing belt.

US Pat. No. 10,419,626

METHOD AND APPARATUS TO INPUT WORKFLOW STEPS AND PARAMETERS

HP PRINTING KOREA CO., LT...

1. An image forming apparatus comprising:a non-transitory computer readable recording medium to store information objects indicative of a plurality of operations to be executed by the image forming apparatus;
a controller to,
provide a web server to generate a graphical user interface (GUI) webpage usable to generate a profile of an application based upon the information objects, the GUI webpage usable through selectable displayed objects representative of a set of operations, among the plurality of operations, to be executed in an order by setting at least one connection relation among selected displayed objects and setting, in the order, setup information of operations in the set of operations, respectively, to define in the profile the order in which the set of operations including the setup information in the order are to be executed and to cause a change to setup information of the image forming apparatus corresponding to the plurality of operations; and
cause a hardware communication interface to,
serve the GUI webpage from the web server to a host computer in response to a request, and
receive, from the host computer, the profile of the application generated through the GUI,
wherein the controller is store the profile based upon which the application is executable according to information of selected displayed objects representative of a set of operations and selected setup information of operations corresponding to the selected displayed objects, respectively, in an order in which the selected setup information is to change the setup information corresponding to the plurality of operations, respectively, when the set of operations are to be executed in the order.

US Pat. No. 10,389,891

SCANNING APPARATUS, MOBILE APPARATUS, AND SCAN JOB PERFORMING METHOD THEREOF

HP PRINTING KOREA CO., LT...

1. A scan job performing method of a scanning apparatus supporting a scan-to-mobile function, the method comprising:receiving a user input to perform the scan-to-mobile function in the scanning apparatus;
discovering a plurality of devices that support the scan-to-mobile function by performing wireless multicasting, in response to the user input to perform the scan-to-mobile function, the plurality of devices including a mobile apparatus;
receiving information regarding each of the plurality of devices and storing the information regarding the plurality of devices in the scanning apparatus, the information regarding the mobile apparatus being received from the mobile apparatus and including text (TXT) records information including an IP address, port information, and a telephone number of the mobile apparatus;
parsing the received TXT records information to acquire the IP address, the port information, and the telephone number of the mobile apparatus;
generating a list of the plurality of devices that are determined as supporting the scan-to-mobile function discovered based on the multicasting, and displaying the list of the plurality of devices, the displayed list of the plurality of devices including the mobile apparatus identified by the telephone number of the mobile apparatus;
receiving a user input selecting the mobile apparatus from the displayed list;
wirelessly connecting the scanning apparatus to the mobile apparatus using the TXT records information received from the mobile apparatus, in response to receiving the user input selecting the mobile apparatus;
generating a scan image by the scanning apparatus;
transmitting the scan image from the scanning apparatus to the mobile apparatus; and
deleting the information of the mobile apparatus from the stored information regarding each of the plurality of devices stored in the scanning apparatus, if a transmission of the scan image from the scanning apparatus to the mobile apparatus is completed,
wherein the deleting the information of the mobile apparatus comprises:
deleting the information of the mobile apparatus automatically without a user input to instruct the scanning apparatus to delete the information of the mobile apparatus, when detecting that an elapsed time beginning from a point in time corresponding to when transmission of the scan image from the scanning apparatus to the mobile apparatus is completed is greater than a predetermined period of time.

US Pat. No. 10,353,341

IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING FUSER

HP PRINTING KOREA CO., LT...

1. An image forming apparatus comprising:a fuser to fuse a print sheet having a surface on which toner is developed, the fuser including a heating element; and
a controller to control a number of waveforms of an alternating current (AC) power to be supplied to the heating element within a control cycle to control the fuser to fuse the print sheet at a target temperature and to vary the control cycle according to a temperature of the fuser.

US Pat. No. 10,520,845

CHARGING MEMBER FOR ELECTROPHOTOGRAPHIC IMAGING APPARATUS

HP PRINTING KOREA CO., LT...

1. A charging member coupleable to an electrophotographic imaging apparatus, the charging member comprising:an electrically-conductive support body;
an electrically-conductive elastomer layer stacked on a surface of the electrically-conductive support body; and
an electrically-conductive resin layer stacked as an outermost layer on the electrically-conductive elastomer layer, the electrically-conductive resin layer including
a binder resin, and
particles comprising a type of particles selected from resin particles and inorganic particles,
wherein a relative dielectric constant (?r1) of the binder resin is greater than or about equal to a relative dielectric constant (?r2) of the type of particles.

US Pat. No. 10,459,393

IMAGE-FORMING APPARATUS

HP PRINTING KOREA CO., LT...

1. An image forming apparatus comprising:an apparatus body;
a printing media cassette to receive printing media, the printing media cassette being movably coupled to the apparatus body;
a first lever provided at the printing media cassette;
a second lever provided in the apparatus body, the second lever including,
a first actuating arm that includes a groove to be coupled to the first lever, and when the printing media cassette is closed, the second lever being turned and the groove separated from the first lever, and
a second actuating arm rotatable about same axis as the first actuating arm and to be contacted and pushed by the first lever when the printing media cassette is opened.

US Pat. No. 10,225,437

IMAGE SCANNING APPARATUS AND METHOD OF CONTROLLING SCAN

HP PRINTING KOREA CO., LT...

1. An image scanning apparatus comprising:an image sensor to scan an image to produce an analog signal;
a converter to convert the analog signal into a digital signal;
at least one processor to:
control the converter to convert the analog signal into the digital signal using a plurality of control signals communicable between the converter and the at least one processor, and
perform image-processing of the digital signal; and
a reset circuit to:
generate a reset signal to reset the converter based on at least one control signal of the plurality of control signals being communicated between the converter and the at least one processor, and
provide the reset signal to the converter, to reset the converter.