Abstract: 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.

Abstract: An inkjet printer having a suction function and a method of operating the inkjet printer includes a suction instrument that applies a suction force toward a platen so as to closely attach a printing medium to the platen during a printing operation and to suck spitted ink in a printing standby state.

Abstract: An array type multi-pass inkjet printer head and an operating method thereof. The array type inkjet printer includes an image dividing unit to divide an image to be printed into a plurality of images, a printing unit having a head and to print one of the plurality of divided images on a printing medium using the head, the head being formed in a lateral direction and having a plurality of nozzles disposed in a longitudinal direction thereof, a feedback unit to reversely move the printing medium to a preceding end of the printing unit after the one of the plurality of divided images is printed by the printing unit, and a control unit to control the printing unit to print a divided image next to the printed one image on the reversely printing medium.

Abstract: An array type print head cleaning apparatus, and a method of using same, including a cleaning carriage formed to linearly reciprocate, a cleaning unit disposed to reciprocate between a first position and a second position in the cleaning carriage in a direction transverse to a moving direction of the cleaning carriage, and a cleaning unit moving mechanism disposed in the cleaning carriage to cause the cleaning unit to reciprocate between the first position and the second position.

Abstract: 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.

Abstract: An inkjet image forming apparatus capable of circulating ink provided from an ink cartridge includes at least one pump disposed at an ink cartridge that is detachably disposed to a main body frame, at least one pump driving unit to drive the at least one pump, and a driving motor to drive the at least one pump driving unit if rotating in a first direction. The driving motor drives another part of the image forming apparatus if rotating in a second direction.

Abstract: An image forming apparatus includes a feeding part which feeds a printing paper, an array head cartridge which has a plurality of head chips to jet ink onto the paper, and a paper supplying drum which transfers the paper fed from the feeding part to the array head cartridge, the head chips being provided in plural rows on a lower surface of the array head cartridge, the lower surface of the array head cartridge having a plurality of inclined surfaces toward the paper supplying drum, and the respective inclined surfaces being provided to have the same distances with respect to the paper supplying drum.

Abstract: An array type multi-pass inkjet printer head and an operating method thereof. The array type inkjet printer includes an image dividing unit to divide an image to be printed into a plurality of images, a printing unit having a head and to print one of the plurality of divided images on a printing medium using the head, the head being formed in a lateral direction and having a plurality of nozzles disposed in a longitudinal direction thereof, a feedback unit to reversely move the printing medium to a preceding end of the printing unit after the one of the plurality of divided images is printed by the printing unit, and a control unit to control the printing unit to print a divided image next to the printed one image on the reversely moved printing medium.

Abstract: Disclosed herein is a linear compressor. In the present invention, a leaf spring is used for an exhale spring to support an exhale valve. As the leaf spring supports the exhale valve by being bended in a predetermined direction, the exhale valve can be stably opened and closed in the predetermined direction. As a space for the exhale spring becomes reduced in an inner exhale cover, a size of an exhale part is reduced, thus making it possible to produce the compact linear compressor. As the leaf spring is comprised of a plurality of overlapped plates, when the exhale valve is opened and closed, the leaf spring is bended, and friction is generated among the plurality of plates. Therefore, a vibration of the exhale valve is decremented by its friction, thus reducing a friction noise.