Abstract: Corrected values C1, M1, and Y1 corrected in a quasi-grayscale processing section of an image forming device by an error diffusion technique performed for each channel are evaluated in threshold value sections provided for individual channels, so as to determine whether or not they are greater than threshold values. If an overlapping CMY dot formation detector section detects that the density is higher than the threshold value in all of the three channels, a minimum density channel identifying section instructs a first quantized value substitution section and varies the outputs from the threshold value sections, so that the output in the channel with the lowest density has a value that does not represent dot formation. As a result, overlapping dot formation for the three channels is interrupted.

Abstract: An object of the invention is to provide a display device of an image forming apparatus capable of displaying information that the user wants to obtain in a visually easy-to-recognize manner. In a compound image forming apparatus provided with: one of original reading means for reading image information from an original, image receiving means for receiving image information from a terminal connected to a network and a line image receiving means for receiving image information from a telephone line; image forming means for forming an image based on the image information obtained by the means; and a display portion for displaying the condition of the apparatus, a display condition control portion is provided that changes the display condition of the display portion to a visually easy-to-recognize condition when the condition of the compound image forming apparatus is changed.

Abstract: A throttle-opening detecting apparatus has a case mounted on a handle bar of a vehicle, a throttle grip mounted on a leading end side of the handle bar from the case so as to be rotatable with respect to the handle bar, a detect member incorporated in the case and rotatable in linking with the throttle grip, a throttle-opening sensor for detecting the rotation angle of the detect member, and a rotative direction changing unit for rotating the detect member in a direction substantially perpendicular to the rotative direction of the throttle grip, so as to provide a throttle-opening detecting apparatus which can decrease the thickness-direction dimension of the case to thereby reduce the size of the throttle-opening detecting apparatus.

Abstract: A throttle-opening detecting apparatus has a case mounted on a handle bar of a vehicle, a throttle grip mounted on a leading end side of the handle bar so as to be rotatable with respect to the handle bar, a throttle-opening sensor incorporated in the case for detecting a rotation angle of the throttle grip and, a friction plate applying a frictional force in an opposite direction with respect to the rotation of the throttle grip to the throttle grip while the throttle grip is rotated so as to provide a throttle-opening detecting apparatus which not only can omit the throttle wire but also can obtain the rotation load of the throttle grip similar to the conventional throttle-opening detecting apparatus to thereby permit execution of the operation of the throttle grip without giving the driver a strange feeling.

Abstract: A throttle-opening sensor has a detect shaft rotatable about an axis in conjunction with a throttle grip, a pair of rotation terminals respectively disposed on different positions in the same circle with the rotation axis, the pair of rotation terminals being rotatable together with the detect shaft, contact pieces disposed on each of the rotation terminals at predetermined intervals in a rotation-radius direction of the rotation terminal, a printed circuit including conducting pattern portions printed along sliding loci of the contact pieces and, a resistance portion printed in a sliding range of the contact piece of the conducting pattern portion, and generating a resistance against a current flowing in the conducting pattern portion, wherein at least two detection signals variable in mutually opposite directions according to the rotation angles of the throttle grip are generated due to that the contact pieces respectively allow the conducting pattern portions to conduct therebetween.

Abstract: An object of the present invention is to avoid such a problem that white dropouts and the Moire phenomenon occur in a filter-processed image. A filter unit employed in an image processing apparatus provided within a copying machine first selects as a pixel of interest any one of a plurality of reversed density pixels which constitute an image to be processed. Next, the filter unit uses density of this interest pixel before being corrected, density of pixels located at peripheral portions of this interest pixel, and a predetermined filter coefficient so as to calculate a weighted average value for each of the density. Finally, the filter unit compares the density of this interest pixel before being corrected with the weighted average values to output as a corrected density of this interest pixel, such a value approximated to a density equivalent to a black level.

Abstract: An object of the invention is to provide a display device of an image forming apparatus capable of displaying information that the user wants to obtain in a visually easy-to-recognize manner. In a complex image forming apparatus provided with: one of original reading means for reading image information from an original, image receiving means for receiving image information from a terminal connected to a network and a line image receiving means for receiving image information from a telephone line; image forming means for forming an image based on the image information obtained by the means; and a display portion for displaying the condition of the apparatus, a display condition control portion is provided that changes the display condition of the display portion to a visually easy-to-recognize condition when the condition of the complex image forming apparatus is changed.

Abstract: An oxide-containing organosilicon polymer containing 1 to 45% by weight of metal oxide particles, an oxide-containing silicon-carbide-based inorganic fiber obtained by using the above organosilicon polymer as a raw material and having excellent oxidation resistance, in particular excellent oxidation resistance in a high temperature oxidizing atmosphere containing moisture, a crystalline silicon-carbide-based inorganic fiber having a calcined structure of SiC and production processes of these.

Abstract: An image forming apparatus which can detect a defect in a nozzle and an optical system, and inform an execution of maintenance. The apparatus comprises a scanner which reads an image; a print head which prints an image; a test pattern image data ROM stored a test pattern; and an image processing unit which diagnoses a defect in the print head and the scanner by processing data of the test pattern which is read by the scanner.

Abstract: An object of the invention is to provide a display device of an image forming apparatus capable of displaying information that the user wants to obtain in a visually easy-to-recognize manner. In a complex image forming apparatus provided with: one of original reading means for reading image information from an original, image receiving means for receiving image information from a terminal connected to a network and a line image receiving means for receiving image information from a telephone line; image forming means for forming an image based on the image information obtained by the means; and a display portion for displaying the condition of the apparatus, a display condition control portion is provided that changes the display condition of the display portion to a visually easy-to-recognize condition when the condition of the complex image forming apparatus is changed.

Abstract: The object of the invention is to identify accurately which of the plurality of image types each pixel in a document image is included by a small circuit structure. When spacial filtering process is performed to the image signals of a photograph region and a letter region shown by use of a filter with a filter coefficient having a sum of −1 as shown, the image signals shown will be intensified, and by binary coding the same with a threshold “0”, an edge detection result could be gained, with no edge portion detected in the photograph region. Therefore, in the identification circuit of the image processing device, the identification on whether or not the observation pixel is included in the photograph region could be easily and accurately be performed based on whether or not the edge portion exists in the local block.

Abstract: A document scanning unit is disposed so that a scanning direction of a document on a table glass by a lamp unit is equal to a longitudinal direction of a photoreceptor drum provided in a mechanism unit. A face-down tray is mounted above the document scanning unit, and a face-up tray is positioned on a side of the apparatus opposite to the face-down tray with respect to the mechanism unit. The discharge-opening switching section switches the discharge openings so that a recording sheet is discharged to the face-down tray in a printer mode, or to the face-up tray in a copy mode. This structure enables a reduction in the size of an image forming apparatus by decreasing the width of the apparatus without increasing the height thereof. Moreover, with this structure, it is possible to perform the discharge of sheets according to operation modes, namely the printer mode and the copy mode.

Abstract: A document feeder includes: a document detecting device arranged on the top of the copier body, for detecting a document inserted from the outside; a feed roller arranged adjacent to the document detecting device, on the top of the copier body, for feeding an inserted document into a space between the original table and the original cover, in response to the detection of a document by the document detecting device; and an original cover lifting device arranged on the top of the copier body, for lifting the original cover to create a gap between the original table and the original cover, in response to the detection of a document by the document detecting device. Alternatively, the feed roller further has a rotary cam on its shaft, so that the cam rotates to lift the original cover up as the feed roller rotates in the document feeding direction.

Abstract: An information processing system includes a modem communicating with a remote console through a telephone line, an information processing apparatus communicating with the remote console through the modem, a service processor, a power supply continuously supplying power to the modem and the service processor, a power supply supplying power to the information processing apparatus according to commands from the service processor, and a switch connecting the modem to the service processor or the information processing apparatus in accordance with a switching signal from the service processor. The service processor controls the switch to connect the modem to the service processor when the information processing apparatus power supply is in the off state.

Abstract: A feed roller for feeding a document is disposed between a control panel and an original table on the top of a copier body. A document stocker provided rotatably relative to an original cover on the original table is rotated so as to cover the control panel, whereby the original cover is raised from the original table to create some clearance. In this situation, a document is inserted through the document stocker from a document inserting port. The document thus inserted is detected by the operation of a detecting lever, which activates the feed roller to convey the inserted document to the original table. As the rear part of the document thus conveyed is detected by the operation of the detecting lever, the feed roller is deactivated. In this condition, copying operation is carried out so that an image of the document conveyed onto the original table is formed.

Abstract: Disclosed are water soluble core wherein a particulate refractory material is combined with a binding agent comprising Na.sub.2 CO.sub.3, Na.sub.2 O . NSiO.sub.2 where n is 0.5 to 4, and SiO.sub.2 as ingredients and a process for producing the water soluble core. The process comprises mixing the particulate refractory material with a water glass, casting the mixture of the particulate refractory material and the water glass, hardening the casting by CO.sub.2 gas, and calcining the casting at between 100.degree. C. and a temperature less than that of an endothermic peak of the water glass in differential thermal analysis. Also, a process for die casting a metal is disclosed using the water soluble core which process comprises pre-heating the water soluble core from a temperature of 300.degree. C. below a melting point of the metal to a temperature of the endothermic peak.

Abstract: A fiber-reinforced metal composite (aluminum-matrix composite) consisting essentially of reinforcing fibers and an aluminum alloy containing 6 to 11 wt. % of nickel of a metal matrix.

Abstract: A fiber-reinforced metal composite consisting essentially of continuous reinforcing fibers disposed in an aluminum alloy matrix containing about 0.005 wt % of cobalt.

Abstract: In a method of feeding a molten metal in metal molds through a casting sleeve to cast a predetermined article, a hollow thin-plate body is provided to at least an inner wall surface portion of the casting sleeve near the molds.