Abstract:
An image forming device includes a paper supply apparatus including an adjustable knock-up plate to store a plurality of papers and having a lifter, a pick-up roller and feed roller to pick up each of the plurality of papers and feed each of the plurality of papers into the image forming device respectively, a motor to drive a plurality of units in the image forming device including the knock-up plate, and a brake unit to selectively transmit and disconnect power to the lifter. The lifting operation of the knock-up plate, to smoothly supply papers to the image forming device, is performed by receiving power from an existing arbitrary motor installed within the image forming device, and not from an exclusive motor that is solely used to drive and lift the knock-up plate.
Abstract:
An image forming apparatus discharging a printed medium at a stable speed. A image developer affixes an image to a printing medium to form a printed medium and a transporting roller moves the printed medium toward a discharge roller. A one-way clutch driving the transport roller permits the discharge roller to assert control over the printed medium while the printed medium is in contact with the transport roller. The discharge roller is controllable to accelerate and decelerate the printed medium so that printed media are orderly stacked. The one way clutch permits the discharge roller and the transport roller to be spaced apart less than a length of the printed medium.
Abstract:
In one aspect, a method of fabricating a semiconductor device is provided. The method includes forming at least one capping layer over epitaxial source/drain regions of a PMOS device, forming a stress memorization (SM) layer over the PMOS device including the at least one capping layer and over an adjacent NMOS device, and treating the SM layer formed over the NMOS and PMOS devices to induce tensile stress in a channel region of the NMOS device.
Abstract:
A duplex-printable image forming apparatus which is capable of increasing a speed of duplex printing. The image forming apparatus includes: a developing unit which forms a visible image, which is formed of a developer, on a printing medium; a fixing unit which fixes the visible image formed on the printing medium onto the printing medium; a discharging roller unit which can be regularly/reversely rotated such that the printing medium passed through the fixing unit is conveyed to the developing unit along a duplex printing path or is discharged out of the apparatus; and an intermediate conveying unit which is interposed between the fixing unit and the discharging roller unit and selectively holds the printing medium.
Abstract:
A duplex-printable image forming apparatus which is capable of increasing a speed of duplex printing. The image forming apparatus includes: a developing unit which forms a visible image, which is formed of a developer, on a printing medium; a fixing unit which fixes the visible image formed on the printing medium onto the printing medium; a discharging roller unit which can be regularly/reversely rotated such that the printing medium passed through the fixing unit is conveyed to the developing unit along a duplex printing path or is discharged out of the apparatus; and an intermediate conveying unit which is interposed between the fixing unit and the discharging roller unit and selectively holds the printing medium.
Abstract:
A paper supply apparatus to supply paper to printing devices such as printers or copiers. The paper supply apparatus includes a knock-up plate on which papers are stacked, a pick-up roller that feeds the papers into the printing device by picking up the papers stacked on the knock-up plate, a lifter that lifts the knock-up plate so that the papers stacked on the knock-up plate continuously contact with the pick-up roller, a motor for driving apparatuses in the printing device, a spring clutch that connects the motor to the lifter to transmit power, and a brake lever that selectively transmits power according to height variations of the pick-up roller via the spring clutch. In the paper supply apparatus, since the knock-up plate can be lifted using the power of the motor that is used for driving other apparatuses of the printing device, an exclusive motor for supplying paper is unnecessary, thereby reducing the number of parts and power consumption.
Abstract:
An apparatus for adjusting a fixing pressure of an image forming apparatus is provided. The apparatus for adjusting the fixing pressure includes a pair of pressing members to rotatably support an axis of a first roller from both ends and to rotate about a hinge shaft to cause the first roller to press against a second roller, a pair of hinge cams to move the hinge shaft of the pair of pressing members in either of two directions, a driving unit to rotate the pair of hinge cams, and a control unit to control the driving unit to adjust the position of the hinge shaft.
Abstract:
An image forming apparatus discharging a printed medium at a stable speed. A image developer affixes an image to a printing medium to form a printed medium and a transporting roller moves the printed medium toward a discharge roller. A one-way clutch driving the transport roller permits the discharge roller to assert control over the printed medium while the printed medium is in contact with the transport roller. The discharge roller is controllable to accelerate and decelerate the printed medium so that printed media are orderly stacked. The one way clutch permits the discharge roller and the transport roller to be spaced apart less than a length of the printed medium.
Abstract:
An apparatus for adjusting a fixing pressure of an image forming apparatus is provided. The apparatus for adjusting the fixing pressure includes a pair of pressing members to rotatably support an axis of a first roller from both ends and to rotate about a hinge shaft to cause the first roller to press against a second roller, a pair of hinge cams to move the hinge shaft of the pair of pressing members in either of two directions, a driving unit to rotate the pair of hinge cams, and a control unit to control the driving unit to adjust the position of the hinge shaft.
Abstract:
A scanning apparatus including a scanner main body provided with a document sheet stand; a scan unit being movably installed in the scanner main body for scanning an image of a document sheet placed on the document sheet stand; a driving unit to drive the scan unit; a locking unit to lock/unlock a motion of the scan unit; and a control section to control a driving of the locking unit in response to a scan signal. The scan unit is automatically locked/unlocked by the locking unit.