Samsung Electronics Co., Ltd.

Dong-woo Ha

Sung-wook Kang

Jin-ho Park

Youn-gun Jung

Karp-sik Youn

Heon-soo Park

Dong-wook Kim

Ki-hwan Kwon

Jung-dae Heo

Seok-man Hong

Young-gun Jung

A suction nozzle, and a vacuum cleaner, and a robot cleaner includes a housing having a suction port formed on a bottom surface thereof and a suction flow path formed on an inside thereof to communicate with the suction port, and a vibration cleaning unit arranged on the suction flow path to pass therethrough air including pollutants that flows in through the suction port, wherein the vibration cleaning unit includes a vibration source, a vibration transfer frame configured to accommodate the vibration source, and a vibration bar configured to receive vibration transferred from the vibration transfer frame to resonate.

Suction nozzle and vacuum cleaner and robot cleaner having the same

A printing head cleaning apparatus usable with an image forming apparatus includes a spraying unit to spray a quantity of cleaning solution using a sprayer and a cleaning shuttle to carry the spraying unit. The spraying unit includes a cleaning solution tank to store the cleaning solution sprayed by the sprayer, a spraying cam to operate the sprayer to selectively spray a quantity of the cleaning solution, and a cam driving member to cause the spraying cam to rotate according to movement of the cleaning shuttle.

Printing head cleaning apparatus, image forming apparatus having the same and method to clean printing head

An image forming apparatus and a method of driving the image forming apparatus. The image forming apparatus includes, an ink cartridge including a plurality of print heads arranged in a width direction of a paper sheet crossing a direction along which the printing medium is transferred, a wiping unit moving in the transfer direction to wipe nozzle surfaces of the plurality of print heads, and a controller independently driving the plurality of print heads which have been wiped by the wiping unit, so that color nozzles of the plurality of print heads spray predetermined amounts of inks.

Image forming apparatus and method of driving the same

An inkjet image forming apparatus includes an inkjet head including a nozzle portion having a length in a main scanning direction that is at least equal to a width of a printing medium, a conveying unit to convey the printing medium, a driving motor to drive the conveying unit, and a cap member to cap and uncap the nozzle portion, and the conveying unit and the cap member are driven by the driving motor.

Inkjet image forming apparatus including cap member

An inkjet image forming apparatus includes an inkjet head having a nozzle unit having a length in a main scanning direction corresponding to a width of a printing medium, a capping unit to move to a capping position to cap the nozzle unit and an uncapping position for a printing. The capping unit includes a cap member having a spitting hole and covering the nozzle unit, an absorbing member to absorb an ink passing through the spitting hole, and a support member disposed at a position where the cap member and the absorbing member are installed, the support member receiving the ink spitted.

Inkjet image forming apparatus having a capping unit

An inkjet image forming apparatus including an inkjet head including a nozzle portion having a length in a main scanning direction that is at least the same as a width of a paper to be fed therein, a platen to move between a printing position facing the nozzle portion and to support a rear surface of paper and a maintenance position that is apart from the printing position in a sub-scanning direction, and including a receiving portion to receive waste ink, a waste ink container, and a pumping unit to operate by linking with a moving operation of the platen to pump the waste ink from the receiving portion to the waste ink container.

Inkjet image forming apparatus

A registration device usable with an image forming apparatus includes a registration roller, a registration lever to rotate between an alignment position to block and align a leading edge of a paper sheet supplied to the registration roller and an opening position to allow the paper sheet to be fed beyond the registration lever, and a resilient member to resiliently urge the registration lever to rotate into the alignment position. The resilient member has a center portion and first and second arms extending from the center portion. An end of the first arm is coupled to the registration lever and the resilient member is pivotable about an end of the second arm.

Registration device and image forming apparatus having the same

A one-molding frame of an image forming apparatus includes a feeding part to feed sheets of paper one by one, a printing unit with a printing module provided along a paper feeding passage to form an image on the paper fed from the feeding module, and an ejecting unit with an ejecting module to eject and stack the paper after the printing unit forms the image on the paper. The printing module includes an array type inkjet head with a nozzle unit having a length corresponding to a width of the paper, and the printing unit includes at least one aligning mark to align the inkjet head. The one-molding frame improves an alignment precision between the one-molding frame and the inkjet head and a head gap precision between the inkjet head and the paper. Further, a manufacturing cost of the image forming apparatus can be reduced by employing the one-molding frame.

One-molding frame of image forming apparatus

An inkjet image forming apparatus includes a cap member, a wiper, a nozzle unit, and a platen. The cap member and the wiper face the nozzle unit and are located at a position lower than an upper surface of the platen that constitutes a paper delivery path. The platen is moveable to a printing position constituting a paper delivery path and a maintenance position that leaves the printing position such that the wiper and the cap member can access the nozzle unit.

Inkjet image forming apparatus and method of maintaining nozzle unit thereof

A scanner includes a document feed plate on which one or more documents to be read are stacked, an image sensor disposed adjacent to the document feed plate to read a lower surface of the one or more documents, a plurality of document output rollers arranged vertically adjacent to each other to change a direction along which the read one or more documents proceed along a reverse C-shaped path and to output the read one or more documents through a document outlet, and a document output plate located above the document feed plate on which the output one or more documents are stacked. The plurality of document output rollers rotate in the same direction, and each of the document output rollers has a shaft that is a rotational center and a plurality of roller bodies arranged to be separated from one another along a lengthwise direction of the shaft. Additionally, the roller bodies of a first document output roller are arranged not to contact the roller bodies of a second document output roller that is adjacent to the first document output roller, and a distance between the shafts of the first and second document output rollers is less than a sum of a radius of the roller bodies of the first document output roller and a radius of the roller bodies of the second document output roller.

Scanner and image forming apparatus having the same

A scanning apparatus and a method of preventing damage of gear may include a driving roller to transfer a document sheet while being in contact with a scanning glass of a reading unit and configured to be spaced-apart from the scanning glass so that a jammed sheet can be removed, a driving gear joined to the driving roller, a power transmitting gear to be selectively engaged with the driving gear so as to supply a rotational force of a driving motor to the driving roller, a first sensor installed at a front side of the driving roller to detect a document sheet, a controlling portion to control a scanning process, wherein the controlling portion controls the power transmitting portion to be spaced-apart from the driving gear when the first sensor cannot detect the document sheet.

Scanning apparatus and method of preventing damage of gears of the same

An inkjet printer is provided including a printing head which includes a nozzle unit with a length that corresponds to a width of paper to eject ink on the paper at a fixed position for printing an image. A capping unit ascends and descends between capping and uncapping positions. A guiding element is located below the printing head to support the paper and has an aperture through which the capping unit may access the nozzle unit. A moving guide moves between a first position to open the aperture such that the capping unit may be moved to the capping position and a second position to block the aperture.

Inkjet printer including shifting guide

An inkjet image forming apparatus is provided. The image forming apparatus includes an inkjet printhead that prints an image by ejecting ink on paper and has an ink refill hole through which the inkjet printhead is refillable with ink. A cover is disposed over the ink refill hole. A door covers part of a housing when closed and exposes the covered part of the housing when opened so that the inkjet printhead is accessible. A sensor detects whether the door is open or closed and outputs a door open signal or a door closed signal based on the detection results. An electrical actuator is coupled to the cover and lifts up or down the cover in response to the door open signal or the door closed signal.

Growing community of inventors

Suwon-si, South Korea

Dong-woo Ha