摘要:
An electrophotographic facsimile apparatus is provided with a main body, a recording mechanism substantially arranged in the main body, for printing received image information onto a recording paper fed through a recording paper path by using electrophotography, and an upper structure is disposed on the main body. The electrophotographic facsimile apparatus further includes an image recording head disposed in the upper structure for reading image information of a document to be transmitted, and an operation unit for inputting operation information. The recording paper path is formed between the main body and the upper structure, and inclines obliquely downward along a direction in which the recording paper is fed. The upper structure has an inclined upper surface parallel with the recording paper path. The operation unit is disposed on the inclined upper surface of the upper structure.
摘要:
In a printer such as a laser beam printer utilized to print an image on a recording medium, an image transferring mechanism such as a photoconductive drum is disposed under the feed path of the recording medium so as to transfer an image such as a toner image onto the undersurface of the recording medium. The recording medium, on which the image is thus transferred is discharged and stacked with the image carrying side down in the proper order.
摘要:
An electrophotographic apparatus is provided with an original separation mechanism which is disposed on a lower side of the inlet port of a feeding path. The original separation mechanism is pressed to an original pick-up roller, and is provided for separating one original, which contacts the original pick-up roller, from at least one following original. The original separation mechanism includes a unit body, and a friction member attached to the upper surface of a unit body, extending toward a downstream side of the feeding direction of the original so as to intersect the feed path at a predetermined angle, and having an upper surface with a prescribed friction coefficient. The original separation mechanism further includes a pair of supporting members attached to both sides of the unit body with respect to the friction member, and each formed of a spring material having an upper surface which extends so as to intersect the upper surface of the lower original guide member at a predetermined angle. Each of the supporting members intersects the friction member at the distal end thereof.
摘要:
An electrophotographic apparatus is provided with a photoconductive drum including an outer peripheral surface on which a latent image corresponding to an image to be transferred is formed, and a developing device for developing the latent image by a toner. The electrophotographic apparatus further includes a housing for rotatably supporting the photoconductive drum therein and having an opening on one side, a cover member for releasably closing the opening of the housing, and a transfer charger which is attached to one surface of the cover member opposing to the photoconductive drum, and which is provided for transferring the developed image onto a sheet-like member. A pre-roller is attached to an upstream end of a housing which houses the transfer charger. The pre-roller and the photoconductive drum are positioned relative to each other so that a gap of predetermined dimension is defined therebetween.
摘要:
An electrophotographic apparatus is provided with a control device for controlling the heating temperature of the fixing unit in accordance with the detected result by use of a condition detection mechanism. The control device controls the fixing unit: (a) to set the heating temperature thereof to a fixing possible temperature when the condition detection device detects that the imaging operation of the imaging device is initiated or has been continuing, (b) to set the heating temperature to a stand-by temperature lower than the fixing possible temperature when the condition detection device detects that a stand-by condition, in which the imaging operation is interrupted, continues for a first predetermined time, and (c) to set the heating temperature to a save-energy temperature, lower that the stand-by temperature, when the condition detection device detects that the stand-by condition has been continuing for a second predetermined time.
摘要:
A sheet guide mechanism is provided with a guide path along which a sheet-like member is guided and which is defined between one and the other guide surfaces. A stationary guide member has a first surface defining the one guide surface, and a movable guide member having a second surface defines the other guide surface, which is shiftable relative to the stationary guide member. Protrusions are formed on one of the first and second surfaces, protruding toward the other of the first and second surfaces by a predetermined distance. A shiftable member is shiftable relative to the stationary guide member between a guide position and a remote position. A spring is provided between the shiftable member and the movable guide member allowing the elastic contact between the protrusions and the other of the first and second surfaces, when the shiftable member is located in the guide position.
摘要:
An image recording apparatus employing a fixing unit for fixing a toner image on a recording sheet by pressing and, or heating by means of a pair of fixing rollers disposed opposite to each other. At least one of the fixing rollers is arranged to be releasable manually or automatically when a clamshell is opened.
摘要:
Disclosed herein is a method for concentrating gold contained in a leach residue obtained in a copper hydrometallurgical process for recovering copper from a copper sulfide mineral to efficiently separate and recover gold from the leach residue. According to the method, a gold-bearing copper sulfide mineral is subjected to pressure leaching with sulfuric acid at a temperature higher than 102° C. and 112° C. or lower to obtain a leach residue, and the leach residue is subjected to flotation to separate it into a float fraction and a sink fraction. The float fraction obtained by flotation is desulfurized by heating at a temperature of 250 to 800° C. under an inert atmosphere to obtain a desulfurized product. The desulfurized product is subjected to oxidative roasting by heating at a temperature of 600 to 800° C. under an atmosphere of flowing oxygen or air to obtain an oxidatively-roasted product. The oxidatively-roasted product is dissolved in a sulfuric acid solution to obtain a copper solution, and a gold-bearing residue is separated and recovered from the copper solution.
摘要:
A cascade scanning optical system which includes: a first laser scanning optical system having a first polygon mirror, provided with a plurality of first reflecting surfaces, for deflecting a first scanning laser beam to scan a part of a scanning surface to generate a first scanning line; a second laser scanning optical system having a second polygon mirror, provided with a plurality of second reflecting surfaces, for deflecting a second scanning laser beam to scan another part of the scanning surface to generate a second scanning line, wherein the first and second laser scanning optical systems are arranged so as to align the first scanning line with the second scanning line at a point of contact therebetween in a main scanning direction to form a single scanning line; means for measuring a degree of tilt of each of the plurality of first reflecting surfaces and the plurality of second reflecting surfaces; and means for determining combinations of the plurality of first reflecting surfaces with the plurality of second reflecting surfaces in accordance with results of measurements of the measuring means so that the single scanning line is formed by any one of the combinations while minimizing a phase difference between a first phase formed by degrees of tilt of the plurality of first reflecting surfaces and a second phase formed by degrees of tilt of the plurality of the second reflecting surfaces.
摘要:
An image recording apparatus wherein a recording medium is fed in a predetermined feed path. The apparatus is provided with a pair of edge holders opposedly arranged about the feed path for holding edge portions of the recording medium. One of the edge holders is provided with an edge holding space extending along the feed path and having a substantially S-shaped sectional configuration.