Abstract: An optical print head of the present invention includes a light emitting element array having of a plurality of light emitting elements. A rod lens array has a plurality of rod lenses for focusing light output from the rod lenses on an image carrier in the form of beam spots. The rod lenses each have a conjugate length greater than a distance between the light emitting element array, which forms a x1 image, and the image carrier. The head of the present invention reduces the diameter of a beam spot and positions a beam waist close to the image carrier to thereby increase resolution. An image forming apparatus using the above head is also disclosed.

Abstract: An image forming apparatus includes a light emitting array composed of a plurality of light emitting elements that emits light fluxes. An imaging element array may be provided so as to perform imaging with the light fluxes on a prescribed plane. A three dimensional exposure intensity distribution of the light flux is obtained per each light emitting element. A prescribed attribute is obtained from each of the exposure intensity distributions. A plurality of comparison values for the entire exposure valid region may be obtained from different units which consist of two or more successive attributes. Prescribed light emitting quantities enabling all of the comparison values to fall within a prescribed range may be determined and set to respective light emitting elements.

Abstract: A developer supplying apparatus includes a developer container containing therein a developer provided with a toner and a carrier, a developer bearing member for magnetically bearing and carrying the developer in the developer container to develop an electrostatic latent image formed on an image bearing member, a detector for detecting information corresponding to the density of the toner, and a supplying device for supplying the toner and the carrier to the developer container in conformity with the output of the detector. The intensity of an electric field for shifting the carrier from the developer bearing member to the image bearing member is greater than the intensity of an electric field formed between the non-image portion of the electrostatic latent image formed on the image bearing member and the developer bearing member.

Abstract: The present invention relates to a developer density controlling apparatus in which image density detecting means a target density on the basis of a detected image corrects and, if difference between a toner density detected by developer density detecting means and the target density is equal to or greater than a predetermined value, the image density detecting means do not correct the target density.

Abstract: The present invention relates to an optical writing device and an image forming apparatus and method in which the optical writing device is provided. In the optical writing device of the invention, a light source array has an array of light sources emitting a plurality of light beams. A focusing lens array has a row of focusing lens elements focusing the light beams from the light source array onto a surface of a photosensitive medium, the focusing lens elements being arrayed in an array direction, each focusing lens element having a visual field radius X in the array direction and a diameter D in the array direction. The focusing lens array is configured to satisfy the condition: m>2.0 where m is an overlap ratio of each of the focusing lens elements defined by the equation m=X/D.

Abstract: When the structure is arranged such that one of the repulsion poles is used as a developer layer thickness regulation pole, screw pitch-shaped density unevenness occurred at the rear end of a solid black image.

Abstract: A hollow cylindrical food product includes a plurality of cylindrical food layers oriented concentrically one within the other and including at least a radially innermost food layer that is cylindrical and a radially outermost cylindrical food layer. Each of the food layers is formed from a rectangular food sheet that has opposite first and second edges, with such rectangular food sheet being formed into a cylindrical shape with such opposite edges in abutment.

Abstract: A method and apparatus for making a hollow cylindrical food which is formed of a plurality of concentrically wound rectangular sheets with leading and tailing edges abutting against each other. The apparatus includes a device which shapes food paste into rectangular sheets. In addition, a conveying device is provided to transfer the rectangular sheets to a transverse bar. The transverse bar is rotatable and movable vertically from the conveying device. The bar is used to wind the sheets, successively, so that the winding of one sheets is started are the preceding sheet has been completely wound.

Abstract: A process for producing materials for fish paste products which comprises the step 1 of milling a frozen ground fish meat to thereby give a frozen ground fish meat in the form of fine particles, thawing a frozen ground fish meat under milling to thereby give a thawed ground fish meat in the form of fine particles, or thawing a frozen ground fish meat and then cutting it to thereby give a thawed ground fish meat, and the step 2 of mixing under stirring the ground fish meat obtained in the step 1 with the use of a stirring means.

Abstract: An optical scanning lens and an optical scanning and imaging system for use in an optical scanning apparatus for scanning a surface of an optical recording medium, such as a photosensitive material, for writing data thereupon, is constructed to produce a minimum beam spot diameter, in a sub-scanning direction, within a desired range, while also reducing variation in a scanning line pitch and reducing variation in beam spot diameter according to an image height for every point along a scanning surface by determining and compensating for a non-uniform distribution of refractive indices in an optical scanning lens used in the optical scanning imaging system, before designing and manufacturing the optical scanning lens.

Abstract: An optical scanning apparatus includes an optical scanning lens composed of a single lens which is arranged and adapted to correct for placement errors of optical elements. The shapes of both surfaces of the optical scanning lens are non-arc in a deflective surface and at least one surface thereof has a special toric surface. The scanning lens is meniscus having a concave shape in a sub-scanning direction and is biconvex in a main scanning direction.

Abstract: A developing apparatus includes a developer bearing member, a first magnetic pole and a second magnetic pole of a same polarity as that of the first magnetic pole, and a regulating member. A regulating portion of the regulating member is provided within a range from a point of the maximum magnetic flux density of the second magnetic pole and an angular point corresponding to a half of the half value width of the second magnetic pole at the downstream side in the rotating direction of the developer bearing member.

Abstract: An image forming apparatus includes an image bearing member for bearing an electrostatic latent image; a first developing device for developing the electrostatic latent image on the image bearing member; a second developing device, faced to the image bearing member and having a movable developer carrying member for carrying toner and carrier, for effecting development after a first developed image provided by the first developing device passes through a position where the developer carrying member is faced to the image bearing member; and a preventing device for forming an alternating electric field between the developer carrying member and the image bearing member, while the second developing device is at reset to prevent the carrier of the second developing device from rubbing the first developed image.

Abstract: A sheet carrying apparatus capable of carrying sheets at a stable speed at which a transfer belt will not be waved or wrinkled and an image forming apparatus for providing high-quality images. In opposition to a drive roll for driving the transfer belt, an opposing member magnetically attracted to the drive roll is arranged.

Abstract: Disclosure is made of a process for producing materials for fish paste products which comprises the step 1 of milling a frozen ground fish meat to thereby give a frozen ground fish meat in the form of fine particles having a diameter of 1 mm or less, thawing a frozen ground fish meat under milling to thereby give a thawed ground fish meat in the form of fine particles, or thawing a frozen ground fish meat and then cutting it to thereby give a thawed ground fish meat, and the step 2 of mixing under stirring the ground fish meat obtained in the step 1 with the use of a stirring means, provided that a cake mixer is employed as the stirring means, when a frozen ground fish meat is thawed to give thawed ground fish meat in the step 1. Use of this process makes it possible to efficiently provide materials ensuring the production of fish paste products with good qualities, e.g. improved gel strength.

Abstract: The present invention provides a recording head for electrostatic recording having a plurality of lower electrodes and a plurality of upper electrodes constituting a matrix with an insulating layer interposed therebetween and a space for ion generation where corona discharge is caused by applying a voltage between the lower and upper electrodes characterized in that a plurality of short partial recording heads are formed by integrally firing the lower electrodes, insulating layer and upper electrodes and are joined to provide a recording head of a desired length.

Abstract: An image heating apparatus includes a heater which heats an image on a recording material, which extends in a direction perpendicular to a moving direction of the recording material; a first temperature detecting member for detecting the temperature of the heater; power controlling device for controlling the power supplied to the heater, so that the temperature detected by the temperature detecting member remains constant; a second temperature detecting member which is positioned at a location apart, in the longitudinal direction of the heater, from where the first temperature detecting member is positioned; and an interrupting device for interrupting the imaging heating process in accordance with the temperature detected by the second temperature detecting member.

Abstract: In an image forming apparatus, three or more (four in this case) cylindrical photosensitive members 1 to 4 on which latent images are formed and developed through use of toner to thereby produce toner images, are arranged so as to share a tangential line in common, and a cylindrical intermediate transfer member 51 is provided. Alternatively, a first unit containing one or more image carriers is positioned next to a first transfer member and a second unit containing one or more image carriers is positioned next to a second transfer member such that there is reflectional symmetry between the first and second units and the transfer members.

Abstract: An apparatus for making a hollow cylindrical food which is formed of a plurality of concentrically wound rectangular sheets with leading and tailing edges abutting against each other. The apparatus includes a device which shapes food paste into rectangular sheets. In addition, a conveying device is provided to transfer the rectangular sheets to a transverse bar. The transverse bar is rotatable and movable vertically from the conveying device. The bar is used to wind the sheets, successively, so that the winding of one sheets is started are the preceding sheet has been completely wound.

Abstract: Imaging forming apparatus includes an image bearing member, an image formation unit for forming an image on the image bearing member, and a detection unit for detecting a voltage-current characteristic between the image bearing member and the charging member. The image formation unit has a charging member contactable to the image bearing member to charge the image bearing member. An image formation condition for the image bearing member is determined on the basis of a plurality of detection operations of the detection unit.