Abstract: (PROBLEM) To provide a seamless conveyor belt comprising knit fabric. (SOLUTION MEANS) A seamless conveyor belt employing monofilament made up of continuous fiber at filament constituting core yarn; being made up of weft-knit or warp-knit in which there is mutual intertwining of filament; flexural stress and heat causing monofilament at core yarn to undergo plastic deformation at locations of entanglement; being a seamless knit belt (1a) comprising a knit pattern (8) which is weft-knit or warp-knit; being a knit pattern (8) in which pitch (Ps) of stitch loops in a width direction (18) is smaller than pitch (Pg) of stitch loops in a conveying direction (17) of the seamless knit belt; mutually contacting loops (9) and filament undergoing deformation; entangled regions of filament being maintained; fraying at side ends of the knit belt (1a) during conveyance by the conveyor belt being prevented; spacing of pitch (Ps) of stitch loops in the width direction (18) being small; and strength being improved.

Abstract: An electrophotographic image-forming device which permits reduction in the size of the device to be made possible, and which permits prevention of toner leakage through use of a sealing member having projections and recesses, said sealing member serving as an end seal member. The image-forming device has a sealing member which serves as an end seal member for a toner carrier. The end seal member for preventing leakage of toner from the toner carrier is formed from the sealing member which has step(s) comprising band(s) formed by recessed region(s) and projecting region(s) as indicated in FIG. 1. The end seal member is capable of bending such that recessed region(s) come in contact with the toner carrier, inhibiting entry of toner thereinto, and the end seal member also has a toner scraping action and a toner movement action.

Abstract: A conveyor belt comprising knit fabric of high practicality, and an apparatus which uses such a conveyor belt. The conveyor belt includes weft knit fabric. Suction of air from below belt(s) is used to convey sheet-like and/or small thing(s) which are object(s) to be conveyed that are placed. The strength of filament(s) of knit fabric at side end(s) is adequately maintained. Loops exhibit mutual intertwining of filament(s) Pitch Ps of loops in width direction is formed so as to be smaller than pitch Pg of loops in conveying direction. Adjacent loops are mutually flattened and filament(s) of loop(s) are entangled, mutual intertwining of filament(s) causes knit fabric to have suppressed percentage elongation and increased strength in conveying direction, fraying of filament(s) at side end(s) of belt(s) is prevented, and strength is adequately increased.

Abstract: A seal member is described that is configured to prevent leakage of micro-powder from a rotating body such as a developing roller. The seal member of the rotating body of an image forming device using toner of the micro-powder includes base fabric consisting of knitting or fabric, loop-shaped pile yarn or cut-shaped pile yarn, which is supported on a surface of the base fabric by the entanglement or support of ground yarn of the base fabric, and a coating layer which has penetrated from a back surface of the base fabric to which a coating agent is applied to the side of pile yarn. A height of the coating agent which has penetrated from the back surface of the base fabric is the same as or less than a thickness of the base fabric which is configured by the height of the ground yarn which supports the pile yarn.

Abstract: A conveyor belt comprising knit fabric of high practicality, and an apparatus which uses such a conveyor belt. The conveyor belt includes weft knit fabric. Suction of air from below belt(s) is used to convey sheet-like and/or small thing(s) which are object(s) to be conveyed that are placed. The strength of filament(s) of knit fabric at side end(s) is adequately maintained. Loops exhibit mutual intertwining of filament(s) Pitch Ps of loops in width direction is formed so as to be smaller than pitch Pg of loops in conveying direction. Adjacent loops are mutually flattened and filament(s) of loop(s) are entangled, mutual intertwining of filament(s) causes knit fabric to have suppressed percentage elongation and increased strength in conveying direction, fraying of filament(s) at side end(s) of belt(s) is prevented, and strength is adequately increased.

Abstract: A conveyor belt comprises woven fabric having a mesh structure which imparts the belt with air permeability permitting suction of air therethrough. In one embodiment, the woven fabric is such that a portion made in plain weave in a low-density weave pattern of prescribed width in which at least one warp yarn and at least one weft yarn are woven together alternates with a portion made in satin weave in a high-density weave pattern of prescribed width in which five to twelve warp yarns and the same at least one warp yarn as in the low-density weave pattern are woven together. This alternation of low-density weave pattern(s) and high-density weave pattern(s) may create stripe(s) disposed in the conveying direction of the belt. Portion(s) made in satin weave may be disposed at one or both side end(s) of the belt.

Abstract: A sealing member for preventing leakage of powder from a rotating body, can prevent escape of powder under low load and with little yarn, which has excellent wear resistance. In the context of a sealing member (1) for preventing leakage of powder (6), a sealing member (1) made up of at least three or more types of woven yarn and formed from woven fabric comprising warp yarn (3a) and weft yarn (3c), the warp yarn (3a) in this sealing member (1) comprising at least two or more types of different yarn diameters (3g) and densities. This is a sealing member (1) for preventing leakage of powder (6) comprising formation of the sealing member (1) from fabric woven in a pattern (2b) of banded and striped appearance (4) having steps (5) due to the difference in diameters and difference in densities of these warp yarns (3a).

Abstract: Disclosed is a seal member for micro-powder, wherein the sealing properties of toner which is micro-powder for a developing roller or the like, such as an electro-photographic image processor or copying machine have been improved.

Abstract: A rotary body sealing material device. The device prevents leakage of powder, by effectively sealing en end of a rotary body with a simple structure. An end seal which prevents toner leakage by contacting an outer circumference of a developing roller, has a contact portion made of a sealing material of yarns including porous hollow fibers. The seal, made of hollow fiber, exhibits reduced repulsive elasticity during compression, and high hermeticity is attained in the yarns by applying only a relatively light load to such an extent that deformation is not formed in a pressure-applying supporting plate and the to-be-pressed developing roller, thereby maintaining seal integrity.

Abstract: An object of the invention is to prevent leakage of powder, etc. by effectively sealing en end of a rotary body with a simple structure. An end seal which prevents toner leakage by contacting an outer circumference of a developing roller, has a contact portion made of a sealing material of yarns including porous hollow fibers. Being made of hollow fiber, the seal exhibits reduced repulsive elasticity during compression, and high hermeticity is attained in the yarns by applying only a relatively light load to such an extent that deformation in a pressure-applying supporting plate and the to-be-pressed developing roller is not caused, thereby maintaining sealability. The seal is freely deformable so as for a stepped portion to be sealed effectively. By mixing non-hollow fibers, the seal can be partially provided with elasticity. By mixing electrically conductive fibers, the seal can be used in a region where static protection is necessitated.

Abstract: A powder particle lumping recording apparatus low in cost and high in printing quality is disclosed. Toner 12 having a magnetic property contained in a toner container 21 is conveyed by a developing roller 11 constituting a magnet roller, and jumped under the effect of the electric field controlled by a control electrode formed on an FPC 22. The toner 12 is accelerated by the acceleration voltage for the conductive roller 15, attaches on a recording material inserted between the control electrode 13 and the conductive roller 15, and thus forms an image. The conductive roller 15 contains a magnet 16 therein. With the approach of the magnet 16 to the control electrode 13 by rotation of the conductive roller 15, the toner 12 can be attracted off. The toner 12 attached on the surface of the conductive roller 15 is mechanically removed by a cleaning blade 17 and accumulated in a housing 18. The conductive roller 15, the cleaning blade 17 and the housing 18 make up an easily-demountable cleaning unit 19.

Abstract: To attach or detach a process cartridge to or from a support member of an LED printer, an upper housing is angularly displaced and opened around a supporting position relative to a lower housing. As the upper housing is gradually opening relatively to the lower housing, the support member is angularly displaced around a connection position with the lower housing to be separated from the upper housing. Then, a used process cartridge can be detached from the support member and another new process cartridge can be attached thereto, thereby allowing such maintenance operation to be easily performed.

Abstract: The invention relates to a method and apparatus for forming a toner layer adapted for electrophotographic developing apparatuses for developing using magnetic toner. Toner carried on a toner carrier and flowing toward the developing position is regulated in thickness by a toner layer thickness regulating member contacting the surface of the toner carrier. Lines of magnetic force are applied to the toner layer having a regulated thickness so as to stir the toner conveyed toward the developing position, thereby forming a uniform toner layer at the downstream side. The toner layer thickness regulating member can be a thin plate member of a nonmagnetic material having elasticity, or a rigid blade having a pivotal proximal end. The toner is stirred in a repulsive magnetic field forming region formed between a magnetic blade and the toner carrier.

Abstract: A plasticizer composition comprises phthalates of C.sub.9 alcohols obtained by an oxo reaction and a hydrogenation of C.sub.8 olefins which have 3 to 20 wt. % especially 7 to 20 wt. % of olefins having one isobutane skeleton and less than 3 wt. % of olefins having quaternary carbon and more than 90 wt. % of a total of n-octenes, monomethylheptenes and dimethylhexenes and more than 0.8 especially 1.1 to 2.0 of a ratio of a total of n-octenes and monomethylheptenes to dimethylhexenes.