Abstract: An image processing apparatus includes a copying machine and a central processing apparatus provided with a facsimile function. When originals are distributed to a plurality of destinations, a destination list is stored in the central processing apparatus in advance. At this time, as to the destinations to which originals are transmitted through the facsimile, telephone numbers thereof are simultaneously stored. The central processing apparatus controls the copying machine and the facsimile function on the basis of the stored data, so that originals are sent by the facsimile to places to which they should be sent by the facsimile, and also copied originals are sent to places to which they should, respectively.

Abstract: A simple and compact opening and closing apparatus for a film cartridge which has a cylindrical body. The apparatus includes an opening section projecting over the body. The opening section has a film opening and a film cover which opens and closes the film opening. The apparatus also includes a chamber which holds the cartridge and has a loading opening for loading the cartridge into the chamber. A cartridge cover opens and closes the loading opening, and there is provided a lock for the film cover. A driver couples the cartridge cover, and a connector connects the lock with the driver so that the film cover is opened when the cartridge cover is closed. The connector is arranged in a concave area which is formed by the surface of the cylindrical body of the cartridge and the opening section projecting over the body.

Abstract: A movable stage utilizing an electromechanical transducer. An actuator as a drive source thereof is composed of piezoelectric elements, drive member fixed thereto and a movable member friction-coupled with the drive member. When a drive pulse is applied to the piezoelectric element to cause it to show reciprocal displacements at different rates in the thickness direction, the movable member frictionally coupled with the drive member moves in the predetermined direction to move the movable table coupled with the movable member in the predetermined direction. The movable stage comprising the movable table moving in the two axes or three axes can be constituted by providing the actuator in the two axes or three axes crossing with each other.

Abstract: This invention relates to the charging member portion of an image forming apparatus. A plurality of charging members are disclosed that maintain a uniform spacing between a charge-receiving member and the discharging portion of the charging members' electrodes despite surface irregularities and surface waviness on the charge-receiving member. One charging member is in the form of a flexible sheet provided with ventilation holes in a non-contacting portion thereof, permitting the air produced by the rotation of the charge-receiving member to escape through the holes to suppress the lifting of the charging member. Pressure fins can be added to the charging member on the downstream of the ventilation holes for further suppressing any lifting. Another charging member includes a semiconductive member or a electret member on at least the surface of the charging member on the side opposite the charge-receiving member. This permits the charging member to be electrostatically attracted to the charge-receiving member.

Abstract: A zoom lens system includes a plurality of lens units. First to third focal length zones are set according to the focal length. During focusing, in the first focal length zone, the lens units are moved at a first constant ratio, and in the third focal length zone, the lens units are moved at a second constant ratio which is different from the first constant ratio. In the second focal length zone, the movement ratio of the lens units varies according to the focal length.

Abstract: A zoom lens system comprises, from the object side, a first lens unit having a positive refractive power, a second lens unit having a positive refractive power and a third lens unit having a negative refractive power. During zooming, the sizes of the first area of empty space between the first lens unit and the second lens unit and the second area of empty space between the second lens unit and the third lens unit change.

Abstract: A camera includes a feeder for feeding a film having magnetic recording portions, a reader for magnetically scanning magnetic recording portions to generate scan signals, and a judger for judging whether or not a magnetic recording portion has been recorded with magnetic data by comparing scan signals with a threshold value, and a warning device for generating a warning when judgment of the judger is impossible. This apparatus can ensure more accurate judgment as to whether a signal picked up from each recording portion is a magnetic signal.

Abstract: An improved belt-type fixing unit in which an unfixed developer on a sheet is not disordered by a disturbed air flow when the sheet enters a contact section of a fixing belt and a pressure roller which comes in pressure contact with it, i.e., a fixing section. In the belt-type fixing unit, a space just before the entry of the sheet into the fixing section is obtusely formed so as to secure a sufficient space for the disturbed air flow to escape.

Abstract: A copier supervisory control system in which a plurality of copiers are connected to each other over a network is provided. Each of the plurality of copiers has a structure that compares a user identifier inputted by a user with a registered identifier. If the user identifier and the registered identifier are identical, the user is permitted to make copies by the copier. If the two compared identifiers are not identical, the user is prohibited from making copies. More specifically, a first copier receives a user identifier and compares it with its registered identifier. If the user identifier and the registered identifier of the first copier are not identical, the copier inquires of a second copier whether it has a registered identifier identical to the user identifier over the network. Upon receipt of the inquiry, the second copier compares the user identifier with its own identifier, and if the two identifiers are identical, it informs the first copier of the result over the network.

Abstract: A color image forming apparatus which controls a copy operation sequence, when an intervening sheet mode is set, to alternately discharge intervening sheets copied with an original document image and OHP sheets copied with the identical original image so as to pile on each other. Under the copy operation sequence in the intervening sheet mode, the color image forming apparatus is controlled to form a full-color copy image on the OHP sheets and to form a monochrome copy image on the intervening sheets.

Abstract: A sliding coupling mounted between a pair of separately rotational members, including a pair of coiled springs, which realizes no rotational delay at time of reversing a rotational direction of one of the rotational members. Each coiled spring has a projecting part extending radially outwardly from one end thereof. The pair of coiled springs are fictionally mounted on an outer surface of one of the rotational members with the circular parts and the projecting parts of the coiled springs being overlapped with each other so that the winding directions of the coiled springs are opposite to each other. The other rotational member has an engaging groove with which the projecting parts of the coiled springs are engaged without a space between each projecting part and a surface forming the engaging groove of the rotational member in each rotational direction.

Abstract: A method for producing a liquid developer comprising steps of:adding a colored resin to a nonpolar dispersion medium;elevating the temperature of said nonpolar dispersion medium above the melting point of said resin;producing a resin emulsion by mixing said heated nonpolar dispersion medium containing said resin therein; andcooling said resin emulsion so as to obtain colored resin microparticles.

Abstract: A toner discharging member is in contact with a developing sleeve at a position downstream to a developing region at which the developing sleeve (developer carrying member) confronts an electrostatic latent image carrier, extra toner returning to a toner supply region after the development is brought into contact with the discharging member and moves between the discharging member and the developing sleeve, a discharging bias voltage is applied to the toner discharging member, and the discharging bias voltage thus applied is controlled based on a toner charged state, an adhesion state of toner onto the electrostatic latent image carrier, a current flowing through a toner discharging member and others.

Abstract: A method of image data processing for an image including halftone areas and single-contrast areas includes the steps of expressing a virtual unit of the image by a respective unit of data, each data unit selected from a plurality of data values, wherein each virtual image unit relating to a halftone area is expressed by a value within a first range of the plurality of data values and each virtual image unit relating to a single-contrast area is expressed by a value within a second range of the plurality of data values; separating the data units into halftone data units and single-contrast data units; processing the halftone data units with a halftone processing unit; and processing the single-contrast data units with a single-contrast processing unit.

Abstract: Malfunction is prevented in a camera which allows setting of print number at the time of photographing. In the camera, whether the film is a reversal film or not is determined. When the loaded film is a negative film, a print number is initially set to 1. If the loaded film is a reversal film, the print number is initially set to 0. However, when a select switch is ON, the set number is 1, similar to the case of a negative film. The setting is for a counter CPRT storing the print number data.

Abstract: A copying machine equipped with a PC counter for counting cumulative rotation time of a photoconductive drum, a development counter for counting cumulative drive time of a developing unit, a sensor for detecting deposition amount of toner onto the photoconductive drum, a sensor for detecting toner concentration in the developer, and a humidity sensor. Based on output values from the counters and sensors, a control section of the copying machine estimates the degree of consumption of a consumable article by using fuzzy inference method or neural network, and thereby decides whether the consumable article have reached an end of life.

Abstract: The invention relates to:(1) negatively chargeable toner particles with inorganic fine particles externally added thereto, the inorganic fine particles having a specified number-mean particle size and a specified chargeability, and(2) toner particles with silica fine particles and titania fine particles added to the toner particles in specified quantities and respectively having a specified number-mean particle size and a specified degree of hydrophobicity and, in combination therewith, inorganic particles having a specified number-mean particle size added to the toner particles.The toner of the present invention has good environmental stability, non-sticking characteristic, and good storage stability, and is capable of forming good images without aggregation noise and free of fogging after repetition of copy. The toner is suitable for full-color image formation in particular.

Abstract: The negatively chargeable toner of the present invention includes a boron compound expressed by the chemical structural formula (A): ##STR1## wherein R.sub.1 and R.sub.3 respectively represent substituted or non-substituted aryl group, R.sub.2 and R.sub.4 respectively represent hydrogen atom, alkyl group, substituted or non-substituted aryl group, X represents a cation, and n is an integer of either 1 or 2; to improve charge rise characteristics and charging stability.

Abstract: An improved bayonet mount for removably attaching the photo-taking lens barrel to a camera body in an interchangeable lens camera system, which bayonet mount includes a body-side mount surface and a lens-side mount surface which have a plurality of stop members severally provided on each interior surface thereof and electrical contact elements severally provided on each interior side thereof. In the bayonet mount, one pair of the correspondent pairs of stop members which mutually engage when the lens barrel is attached to the camera body are disposed at positions which overlap the electrical contact elements in a radial direction on the mount surfaces.

Abstract: An image forming apparatus having an insulated member disposed adjacent to a photosensitive member, a scanner exposing an image on the photosensitive member in a direction perpendicular to the direction of movement of the insulated member while voltage is applied between the photosensitive member and the insulated member so as to provide a charge on the insulated member surface corresponding to the optical exposure image. The exposure position exposed by the scanner is changed in the direction of movement of the image-bearing member for each scan.