Patent application number | Description | Published |
20090317158 | FIXING DEVICE AND IMAGE FORMATION APPARATUS - A fixing device forms a fixing nip by pressing a first roller, which is inside a rotation path of a rotating belt, with a second roller via the belt, and thermally fixes an unfixed image formed on a sheet S by passing the sheet S through the fixing nip while heating the belt by electromagnetic induction. The fixing device comprises an excitation coil positioned outside said path, and a fixed plate that (i) is inside said path, substantially facing the excitation coil via the belt, (ii) contacts an inner surface of the belt, and (iii) keeps the belt on said path. A base member of the belt is a conductive heat generation layer containing no magnetic shunt alloy. The fixed plate includes a conductive layer and a magnetic shunt alloy layer that is closer to the belt than the conductive layer. | 12-24-2009 |
20100150624 | FIXING DEVICE AND IMAGE FORMING APPARATUS PROVIDED WITH THE FIXING DEVICE - First belt | 06-17-2010 |
20110229818 | IMAGE FORMING APPARATUS AND METHOD - An image forming apparatus includes a developing device that uses a developer carrier to advance to an image carrier a developer including a toner and a carrier and supplies the toner to the image carrier by applying a developing bias between the developer carrier and the image carrier. In the image forming apparatus, the following operation is performed before the developer in the developing device is taken out. The toner is supplied to the image carrier by applying the developing bias between the developer carrier and the image carrier, the developing bias increased in a direction to supply the toner to the image carrier. The toner supplied onto the image carrier is not transferred to a transfer receiving material but is advanced into a toner recovery device for recovery. The recovered toner is prevented from being returned to the developing device. | 09-22-2011 |
20120148319 | FIXING DEVICE AND IMAGE FORMATION APPARATUS - A fixing device forms a fixing nip by pressing a first roller, which is inside a rotation path of a rotating belt, with a second roller via the belt, and thermally fixes an unfixed image formed on a sheet S by passing the sheet S through the fixing nip while heating the belt by electromagnetic induction. The fixing device includes an excitation coil positioned outside said path, and a fixed plate that (i) is inside the path, substantially facing the excitation coil via the belt, (ii) contacts an inner surface of the belt, and (iii) keeps the belt on the path. A base member of the belt is a conductive heat generation layer containing no magnetic shunt alloy. The fixed plate includes a conductive layer and a magnetic shunt alloy layer that is closer to the belt than the conductive layer. | 06-14-2012 |
Patent application number | Description | Published |
20120177521 | SCROLL COMPRESSOR - A back pressure chamber ( | 07-12-2012 |
20120258005 | SINGLE-SCREW COMPRESSOR - A single-screw compressor includes a screw rotor, a cylinder wall in which the screw rotor is rotatably accommodated, a driving mechanism which variably drives the screw rotor according to a load, and a slide valve which is provided in a slide groove formed in the cylinder wall. The slide valve faces an outer circumferential surface of the screw rotor to be movable in an axial direction, and to adjust a discharge start position by being moved in the axial direction according to the operating capacity. A discharge side end surface of the slide valve extends in a direction corresponding to a screw land of the screw rotor to which the discharge side end surface faces when the slide valve is moved to a position corresponding to a part load operation state. | 10-11-2012 |
20130011291 | SINGLE-SCREW COMPRESSOR - A screw compressor includes a screw rotor, a gate rotor, a drive mechanism to rotate the screw rotor, a cylinder, a discharge port and an adjustment mechanism. The screw rotor has an outer periphery with a helical groove engaged with radially arranged gates of the gate rotor. First and second axial ends of the screw rotor form suction and discharge sides, respectively. The cylinder accommodates the screw rotor to define a compression chamber in the helical groove. Fluid in the coin cession chamber flows through the discharge port toward the discharge side of the screw rotor. The adjustment mechanism is configured to adjust a compression ratio of the compression chamber within a predetermined. range. The adjustment mechanism adjusts the compression ratio to a minimum compression ratio immediately before or when operation of the adjustment mechanism is stopped. | 01-10-2013 |