Abstract: A paper feeding device of an inkjet printer includes a motor generating a drive force, a pickup drive shaft rotated by the motor, a pivoting link housing disposed on the pickup drive shaft, a pickup roller connected to the ling housing, and a clutch enlinking the pickup drive shaft and the link housing enabling the link housing to pivot by a predetermined angle by rotation of the pickup drive shaft.

Abstract: A paper ejecting mechanism and an ink-jet printer having the paper ejecting mechanism. The paper ejecting mechanism includes an ejecting roller and a star wheel which eject a sheet of paper printed by a printhead into an output tray, and a paper stand installed under the ejecting roller which supports the paper when the ejecting roller is rotated in an ejecting direction, and drops the paper into the output tray when the ejecting roller is rotated in a reverse direction to the ejecting direction.

Abstract: An electric oven includes a partition member to partition a cooking chamber into two cooking regions. The partition member for use in the electric oven includes an insulating board interposed between upper and lower plates of the partition member, and a shock-absorbing unit to prevent damage to the insulating board. Using the electric oven configured as stated above, it is possible to intercept heat transfer between the partitioned respective cooking regions, thereby preventing heat loss between the respective cooking regions and damage to the interior of the partition member.

Abstract: A dust-separating apparatus for a vacuum cleaner separates dust from air without a filer and without a cyclone by repeatedly colliding air and air-borne dust particles against surfaces as the air passes through the dust-separating apparatus. The dust-separating apparatus includes: an air inlet formed in an upper surface of the dust-separating apparatus; an inlet pipe coupled to the air inlet that guides dust-laden air downwardly into the dust-separating apparatus, the end of which opens just above the bottom surface of the dust-separating apparatus where dust particles collide with the bottom surface. An air outlet is formed in a sidewall of the dust-separating apparatus. One or more guide members formed inside the dust-separating apparatus prevent dust from flowing upwardly and provide surfaces against which air-borne particles can collide. A removable dust collection bin stores collected dust.

Abstract: Provided is an inkjet image forming apparatus and method. The inkjet image forming apparatus comprises an inkjet head comprising a nozzle unit with a plurality of nozzles through which ink is ejected, at least one wiper cleaning the nozzle unit, a mount part on which the wiper is installed, and elastic members elastically biasing the wiper in a direction where the wiper can contact the nozzle unit, wherein the wiper installed on the mount part can be tilted in a longitudinal direction thereof.

Abstract: An inkjet printing head is disclosed. The inkjet printing head comprises a nozzle unit having a length in the main scanning direction corresponds to a paper width, the nozzle unit comprising a plurality of nozzle sections split in a main scanning direction, one or more of the plurality of nozzle sections are arranged forward in a secondary direction, and a first depression depressed behind the one or more forward-arranged nozzle sections.

Abstract: A drive apparatus of an ink jet printer using a single motor in which convey failure does not occur by preventing power from being transferred to the convey roller when paper is fed by the feed roller. In an ink jet printer where a sheet of paper stacked in a paper feed cassette is picked up by a pickup roller, conveyed by a convey roller and a pinch roller, and then printed by a printer head while being line-fed by the feed roller, the drive apparatus includes a first gear train disposed on a feed roller shaft with the feed roller assembled to swing within a predetermined angle on the feed roller shaft in a feed roller shaft rotation direction, a second gear train disposed on a frame of the ink jet printer to be in contact with the first gear train, and a third gear train with a front end gear connected with the rear end gear of the second gear train and a rear end gear coaxially disposed on a convey roller shaft with the convey roller assembled.

Abstract: An inkjet printer includes a resistance element with which a front end of the paper becomes in contact so that a paper on a top of the stack of papers is separated from the stack of papers and picked up from a cassette, an angle conversion unit which changes an inclination angle of the resistance element with respect to the front end of the paper, and a switching gear which is moved by a carriage to a first position to feed the paper and to a second position to drive the angle conversion unit.

Abstract: A printer apparatus and method for sequentially which withdrawing sheets loaded into a cassette and printing images on the sheets is provided. The printer includes: a pickup roller for picking up a sheet from a plurality of sheets in the cassette; a resistance member for contacting a front end of the sheets such that the top sheet is separated based on stiffness and picked up from the cassette; and an angle change unit for changing a tilt angle of the resistance member about the front end of the sheets from a first tilt angle to a second tilt angle in a process of picking up the top sheet, and allowing the tilt angle to return to the first tilt angle when the top sheet has been completely picked up.

Abstract: A paper feeding device of an inkjet printer includes a motor generating a drive force, a pickup drive shaft rotated by the motor, a pivoting link housing disposed on the pickup drive shaft, a pickup roller connected to the ling housing, and a clutch enlinking the pickup drive shaft and the link housing enabling the link housing to pivot by a predetermined angle by rotation of the pickup drive shaft.

Abstract: A drive apparatus of an ink jet printer using a single motor in which convey failure does not occur by preventing power from being transferred to the convey roller when paper is fed by the feed roller. In an ink jet printer where a sheet of paper stacked in a paper feed cassette is picked up by a pickup roller, conveyed by a convey roller and a pinch roller, and then printed by a printer head while being line-fed by the feed roller, the drive apparatus includes a first gear train disposed on a feed roller shaft with the feed roller assembled to swing within a predetermined angle on the feed roller shaft in a feed roller shaft rotation direction, a second gear train disposed on a frame of the ink jet printer to be in contact with the first gear train, and a third gear train with a front end gear connected with the rear end gear of the second gear train and a rear end gear coaxially disposed on a convey roller shaft with the convey roller assembled.

Abstract: A paper ejecting mechanism and an ink-jet printer having the paper ejecting mechanism. The paper ejecting mechanism includes an ejecting roller and a star wheel which eject a sheet of paper printed by a printhead into an output tray, and a paper stand installed under the ejecting roller which supports the paper when the ejecting roller is rotated in an ejecting direction, and drops the paper into the output tray when the ejecting roller is rotated in a reverse direction to the ejecting direction.

Abstract: A combined flat bed scanner/printer machine having: a moving body; a scan module connected to the moving body to read a document; and a recording head connected to the moving body adjacent to the scan module, to print on a paper. The moving body is moved by a moving body transfer unit made up of a belt to which the moving body is secured, a guide rod to guide the moving body, and a motor to move the belt.

Abstract: A paper cartridge of a printer including a cartridge body to load papers to be picked up, and a friction plate to provide a predetermined friction force to a front end of the papers picked up at the cartridge body. The friction plate is sloped at a predetermined angle in the body so that the friction plate can be moved by being pushed by the front end of the paper.

Abstract: A pre-scanning apparatus and process using a shuttle scanning system by inserting a document into a sheet carrier of transparent material; pre-scanning the sheet carrier holding the document; and feeding the sheet carrier back. In addition, a pre-scanning method for a shuttle scanning system includes the steps of forwarding a document in response to an applied scanning signal and pre-scanning the document by a low resolution; discharging the document via a feed roller after pre-scanning; re-inserting the discharged document into a paper feeding part; and transferring and scanning the document re-inserted into the paper feeding part.

Abstract: A method and a device for sensing the quantity of remaining ink of an ink-jet printer, the device including a memory for storing printing data from a computer, a jetting device for outputting a printed output corresponding to the printing data in the memory through an inkjetting motion, a scanning device for scanning in wider scanning width than an inkjetting width by movement in the same course, forward or returning direction, as the jetting device, the jetting device and the scanning device using the same driving unit, a picture memory for storing picture or scanning data identified through the scanning device, and a CPU for sensing the quantity of remaining ink by comparing the printing data in the print data memory with the scanning data in the picture memory.

Abstract: A flat bed scanner apparatus for scanning sheets with a stacked-sheet feeder and a flat bed cover separated from one another. The flat bed scanner apparatus includes a flat bed and a flat bed cover to be used for scanning an individual sheet, a stacked-sheet feeder separate from the flat bed cover for feeding a plurality of sheets seriatim, and a scanning module installed inside the flat bed scanner apparatus, for selectively scanning a sheet on the flat bed and a sheet from the stacked-sheet feeder by varying an optical path of light illuminating the sheets.

Abstract: A device for uncurling thermal sensitive recording paper includes a paper container having first and second arcuate portions that are rotatably connected to form a cylindrical body. The paper container accommodates installation of a roll of the thermal sensitive recording paper. A projection is formed on a first end of the first arcuate portion for engaging and applying a predetermined pressure upon the thermal sensitive recording paper. A groove is formed between the projection and a first end of the second arcuate portion to provide a path through which the thermal sensitive recording paper travels. A locking member is positioned at the first end of the first arcuate portion and provides a slot to accommodate the connection between the first and second arcuate portions. A pole extends outwardly from the first end of the second arcuate portion and is inserted into the slot to establish the connection between the first and second arcuate portions.