Abstract: An inkjet printer includes an ink cartridge including an ink container storing ink and fixed to a body of a printer, a printhead assembly including a plurality of nozzle plates, each including a plurality of nozzles ejecting ink supplied from the ink container, disposed on the bottom of the ink cartridge, and extending in a direction perpendicular to a paper moving direction, a platen disposed a predetermined distance below the printhead assembly, the platen supporting a sheet of paper moving in the paper moving direction, and having a plurality of slits extending in a direction perpendicular to the paper moving direction such that they correspond to the nozzle plates, and a wiping apparatus within the platen, the wiping apparatus protruding through the slits, moving in the direction perpendicular to the paper moving direction, and wiping the nozzle plates.

Abstract: An ink jet printer having an improved print head cleaning apparatus includes an ink cartridge provided with a print head on a lower portion thereof and performs a linear reciprocating movement in a predetermined direction by means of a carriage. A housing is disposed below a lower side of the carriage. A wiper is provided in the housing and cleans the print head in contact with the print head. A wiper variable position unit moves the wiper to change a contact position between the print head and the wiper.

Abstract: A capping device and method for a print head for an inkjet printer are disclosed. The capping device has a head cap to seal the print head during the printing standby mode. The head cap has a through hole to allow a sealed portion formed between the head cap and the print head to fluidly communicate outside of the head cap. The through hole is respectively disposed at an inner wall and outer wall of the head cap. Due to the through hole, an air path is formed in the head cap to allow a sealed portion between the print head and the head cap to fluidly communicate with the outside. Even if the air in the sealed portion is heated and expanded, the pressure therein does not increase.

Abstract: An image forming apparatus provided with a dust collecting part includes an ink cartridge having a wide array type ink jet head that is capable of ejecting ink over an entire lateral line that is perpendicular to a conveying direction of a recording medium at a time, and a main body case that supports the ink cartridge, a duct located under the wide array type ink jet head to extend in a longitudinal direction of the wide array type ink jet head; and a dust collecting part including a charging part disposed in the duct to charge impurities and electrodes disposed in the duct to adsorb the charged impurities The image forming apparatus includes a dust-collecting part that adsorbs the impurities over an entire region of the wide array type ink jet head, thereby effectively removing the impurities generated in large quantities and increasing a life span and a reliability of image forming apparatuses, since the dust collecting part is securely maintained during operation.

Abstract: An inkjet image forming apparatus includes an array inkjet head, a cap member, and a pressure regulator. The array inkjet head has a nozzle unit and a plurality of nozzle plates disposed on the nozzle unit and the cap member has a plurality of inside caps to enclose the corresponding nozzle plates. The pressure regulator regulates the pressure of inner spaces of the inside caps.

Abstract: An inkjet image forming apparatus includes a printhead including a nozzle unit having a length corresponding to a width of a sheet of paper, and a drying device to simultaneously dry ink ejected onto the paper by sucking air from around the paper and to discharge the paper using the sucking force.

Abstract: An image forming apparatus provided with a dust collecting part includes an ink cartridge having a wide array type ink jet head that is capable of ejecting ink over an entire lateral line that is perpendicular to a conveying direction of a recording medium at a time, and a main body case that supports the ink cartridge, a duct located under the wide array type ink jet head to extend in a longitudinal direction of the wide array type ink jet head; and a dust collecting part including a charging part disposed in the duct to charge impurities and electrodes disposed in the duct to adsorb the charged impurities The image forming apparatus includes a dust-collecting part that adsorbs the impurities over an entire region of the wide array type ink jet head, thereby effectively removing the impurities generated in large quantities and increasing a life span and a reliability of image forming apparatuses, since the dust collecting part is securely maintained during operation.

Abstract: A print head position adjusting apparatus of an ink jet printer includes at least one stitching adjustment unit disposed at the carrier to adjust an orientation of a print head, and at least one resilient pressing unit resiliently pressing the print head toward the stitching adjustment unit. The stitching adjustment unit includes a supporting knob movably disposed at a wall of the carrier to press a surface of the print head facing the wall of the carrier, and an adjusting knob moving in association with the supporting knob to push or release the supporting knob toward or from the surface of the print head. Accordingly, the print head position adjusting apparatus is capable of adjusting the orientations of the print head mounted in the carrier with a relatively simplified structure, thereby preventing a stitching problem that is caused by the misalignment of the print head.

Abstract: An ink cartridge exchanging apparatus used with an image forming device. The ink cartridge exchanging apparatus having an opening formed at a housing, and an ink cartridge ejecting unit containing at least one ink cartridge and movably disposed with respect to the carriage and the opening to be ejected outside the housing through the opening when exchanging or repairing the ink cartridge.

Abstract: Disclosed is an ink jet printer having an improved print head cleaning apparatus. The ink jet printer comprises an ink cartridge provided with a print head on a lower portion thereof and performing a linear reciprocating movement in a predetermined direction by means of a carriage, a housing provided on a lower side of the carriage, a wiper provided in the housing and cleaning the print head in contact with the print head, and a wiper variable position unit moving the wiper so as to change a contact position between the print head and the wiper.

Abstract: An inkjet printer includes an ink cartridge including an ink container storing ink and fixed to a body of a printer, a printhead assembly including a plurality of nozzle plates, each including a plurality of nozzles ejecting ink supplied from the ink container, disposed on the bottom of the ink cartridge, and extending in a direction perpendicular to a paper moving direction, a platen disposed a predetermined distance below the printhead assembly, the platen supporting a sheet of paper moving in the paper moving direction, and having a plurality of slits extending in a direction perpendicular to the paper moving direction such that they correspond to the nozzle plates, and a wiping apparatus within the platen, the wiping apparatus protruding through the slits, moving in the direction perpendicular to the paper moving direction, and wiping the nozzle plates.

Abstract: A capping device and method for a print head for an inkjet printer are disclosed. The capping device has a head cap to seal the print head during the printing standby mode. The head cap has a through hole to allow a sealed portion formed between the head cap and the print head to fluidly communicate outside of the head cap. The through hole is respectively disposed at an inner wall and outer wall of the head cap. Due to the through hole, an air path is formed in the head cap to allow a sealed portion between the print head and the head cap to fluidly communicate with the outside. Even if the air in the sealed portion is heated and expanded, the pressure therein does not increase.

Abstract: An ink cartridge exchanging apparatus used with an image forming device. The ink cartridge exchanging apparatus having an opening formed at a housing, and an ink cartridge ejecting unit containing at least one ink cartridge and movably disposed with respect to the carriage and the opening to be ejected outside the housing through the opening when exchanging or repairing the ink cartridge.

Abstract: A maintenance apparatus of an inkjet printer includes a control unit to control a drive motor for a wiping member convey unit to be in contact with a stopper two or more times in order to prevent a wiping member and a wiper disposed therein from being erroneously positioned due to an abnormal repulsive force occurring in the wiping member convey unit when the wiping member convey unit comes in contact with the stopper, due to outer impact and changes in load of the motor. The wiper-positioning method includes a first contact operation of driving the motor for the wiping member convey device to come in contact with the stopper, and a re-contact operation of controlling the motor for the wiping member convey unit to be in contact with the stopper one or more times again.

Abstract: An apparatus for cleaning a print head in an ink jet printer, in which the print head is disposed under a carriage, includes a movable plate reciprocally sliding under the carriage, a wiper supported by the movable plate to clean the print head in a state that the wiper is overlapped with the print head by a desired height when the wiper is reciprocally moved, a pivot bar pivotally mounted on the movable plate and having one end supporting the wiper, and a driving mechanism adjusting the height of the wiper by driving the pivot bar to pivot such that the overlapping of the wiper relative to the print head is constantly maintained.

Abstract: A maintenance apparatus of an inkjet printer includes a control unit to control a drive motor for a wiping member convey unit to be in contact with a stopper two or more times in order to prevent a wiping member and a wiper disposed therein from being erroneously positioned due to an abnormal repulsive force occurring in the wiping member convey unit when the wiping member convey unit comes in contact with the stopper, due to outer impact and changes in load of the motor. The wiper-positioning method includes a first contact operation of driving the motor for the wiping member convey device to come in contact with the stopper, and a re-contact operation of controlling the motor for the wiping member convey unit to be in contact with the stopper one or more times again.

Abstract: A print head position adjusting apparatus of an ink jet printer includes at least one stitching adjustment unit disposed at the carrier to adjust an orientation of a print head, and at least one resilient pressing unit resiliently pressing the print head toward the stitching adjustment unit. The stitching adjustment unit includes a supporting knob movably disposed at a wall of the carrier to press a surface of the print head facing the wall of the carrier, and an adjusting knob moving in association with the supporting knob to push or release the supporting knob toward or from the surface of the print head. Accordingly, the print head position adjusting apparatus is capable of adjusting the orientations of the print head mounted in the carrier with a relatively simplified structure, thereby preventing a stitching problem that is caused by the misalignment of the print head.

Abstract: An apparatus for adjusting a position of a printing head in an inkjet printer includes an adjusting device disposed in a head carrier to adjust an arrangement or orientation of the printing head mounted in the head carrier. The adjusting device includes a positioning member disposed in the head carrier to position and mount the printing head at a predetermined position, and a positioning member adjuster adjusting a position of the positioning member to control the arrangement or orientation of the printing head. Accordingly, the apparatus for adjusting the position of the printing head can prevent a switching problem that ink is unevenly ejected on printing paper, by controlling the positioning member adjuster to adjust the position of the positioning member contacting a fixing surface of the printing head to be parallel to the carrier shaft.

Abstract: An apparatus for cleaning a print head in an ink jet printer, in which the print head is disposed under a carriage, includes a movable plate reciprocally sliding under the carriage, a wiper supported by the movable plate to clean the print head in a state that the wiper is overlapped with the print head by a desired height when the wiper is reciprocally moved, a pivot bar pivotally mounted on the movable plate and having one end supporting the wiper, and a driving mechanism adjusting the height of the wiper by driving the pivot bar to pivot such that the overlapping of the wiper relative to the print head is constantly maintained.

Abstract: An apparatus for adjusting a position of a printing head in an inkjet printer includes an adjusting device disposed in a head carrier to adjust an arrangement or orientation of the printing head mounted in the head carrier. The adjusting device includes a positioning member disposed in the head carrier to position and mount the printing head at a predetermined position, and a positioning member adjuster adjusting a position of the positioning member to control the arrangement or orientation of the printing head. Accordingly, the apparatus for adjusting the position of the printing head can prevent a switching problem that ink is unevenly ejected on printing paper, by controlling the positioning member adjuster to adjust the position of the positioning member contacting a fixing surface of the printing head to be parallel to the carrier shaft.