Abstract: In a scanning optical device which polarization-scans a plurality of fluxes of light by one rotary polygon mirror to form a multi-color image by irradiating beams on a plurality of photosensitive drums, respective, the fluxes of light being incident on the rotary polygon mirror have different angles with respect to a reference plane defined by a normal line of a reflecting surface of the rotary polygon mirror and a rotating direction of the rotary polygon mirror, and a flux of light polarization-scanned at the largest angle between the flux of light and the reference plane is irradiated on a photosensitive drum on which a color image having the highest brightness is formed. With this configuration, a scanning optical device in which a defective image caused by an optical face tangle error can be improved without improving the precision of parts and an image forming apparatus including the scanning optical device are provided.

Abstract: An image forming apparatus includes a plurality of image forming portions, each of which has a photosensitive member and a developing device for developing an electrostatic image on the photosensitive member, and an exposure unit disposed beneath the image forming portions for exposing the plurality of photosensitive members. The exposure unit has a frame member that accommodates an optical member. The frame member includes an upper frame portion opposed to the image forming portions. The upper frame portion has a plurality of recessed portions corresponding to the image forming portions respectively.

Abstract: An optical scanning apparatus includes a rotatable polygonal mirror for deflecting first and second laser beams, which are incident on the polygonal mirror at diff(rent positions with respect to a rotational direction of the polygonal mirror; a first optical member for transmitting the first laser beam; a second optical member for transmitting the second laser beam; a laser beam blocking member, disposed between the first optical member and the second optical member, for blocking the first laser beam reflected by the first optical member to prevent the first laser beam reflected by the first optical member from being incident on the second optical member.

Abstract: An extensible apertured nonwoven web, and a method for making such an apertured nonwoven web. In one embodiment the method comprises the steps of providing an apertured nonwoven web, incrementally stretching it in a direction substantially parallel to the cross machine direction, and applying tension in the machine direction such that the web width after applying tension is less than the web width after incremental stretching.

Abstract: The image forming apparatus has an image forming device including a plurality of image forming units each having an image beating member and attachable to and detachable from the image forming apparatus, and an intermediate transferring member disposed above the plurality of image forming units and bearing toner images transferred from the image bearing members of the image forming units, an opening portion, formed by rotating the intermediate transferring member upward, for attaching and detaching the image forming units, and a guide portion for guiding each of the image forming units to be attached and detached from the opening portion, wherein the guide portion for at least the image forming unit installed on the side of a rotating portion of the intermediate transferring member, is inclined in a direction opposite to the rotating portion. With this configuration, it is possible to prevent influence of an open/close cover when attaching and detaching a process cartridge.

Abstract: A disposable pull-on garment is disclosed. The pull-on garment has a waist opening and two leg openings and extends in a longitudinal direction and a transverse direction. The pull-on garment comprises an absorbent main body and a ring-like elastic belt. The absorbent main body comprises a liquid pervious topsheet, a liquid impervious backsheet, and an absorbent core disposed therebetween. The absorbent main body has left and right longitudinally extending side edges, front and back transversely extending end edges, longitudinally opposing front and back waist panels, and a crotch panel between the waist panels. The ring-like elastic belt comprises a front belt portion and a back belt portion. Each of the ring-like belt comprises a belt layer and a belt elastic material joined to the belt layer.

Abstract: The invention comprises a laser beam source that emits a laser beam; a reflecting means that has a plurality of reflecting members and reflects the laser beam emitted from said laser beam source; a deflecting and scanning means that deflects and scans with the laser beam reflected by said reflecting means; and an adjusting means that moves at least part of said reflecting members, and adjusts the size of the laser beam entering the deflecting and scanning means.

Abstract: The present invention relates to an optical apparatus comprising: a first image bearing member; a second image bearing member; a first reflection member for reflecting deflection-scanned first laser beam toward said first image bearing member; a second reflection member for reflecting deflection-scanned second laser beam toward said second image bearing member; and curving support means for curving, in a reflection direction, a reflection surface which reflects the laser beam of said first reflection means. Said curving support means includes a support portion which supports a surface on the side of a direction in which said first reflection member curves, a contact portion of said support portion with respect to said first reflection member is of a shape having a curvature.

Abstract: The present invention relates to an image forming apparatus comprising: an exposing means and a developing means. The developing means comprises a plurality of developing devices, a rotating member rotatable while supporting the plurality of the developing devices, and a driving means for the rotation drive of the rotating member for selectively moving the plurality of the developing devices to the developing position such that the driving means transmits driving force to the rotating member via a gear at a drive transmitting position. An angle ?e(°) formed by a straight line linking the rotation center of the rotating member and the drive transmitting position and the tangent of the image bearing member at an exposing position in the image bearing member moving direction satisfies the following relationship with the premise that an pressure angle of the gear is ?(°) and the image bearing member rotating direction is positive: ????e??.

Abstract: An image forming apparatus includes a plurality of image forming portions, each of which has a photosensitive member and a developing device for developing an electrostatic image on the photosensitive member, and an exposure unit disposed beneath the image forming portions for exposing the plurality of photosensitive members. The exposure unit has a frame member that accommodates an optical member. The frame member includes an upper frame portion opposed to the image forming portions. The upper frame portion has a plurality of recessed portions corresponding to the image forming portions respectively.

Abstract: A disposable pull-on garment comprising an absorbent main body and a ring-like elastic belt is disclosed. The pull-on garment has a waist opening and leg openings and extends in a longitudinal direction and a transverse direction. The absorbent main body comprises a liquid pervious topsheet, a liquid impervious backsheet and an absorbent core disposed therebetween. The ring-like elastic belt is surrounded by a transverse waist border and a transverse abdomen border. The ring-like elastic belt comprises a belt layer and a belt elastic material joined to the belt layer. The belt elastic material is provided with the belt layer such that the leg opening angle formed by the transverse abdomen border of the side panel and the longitudinal side edge of the absorbent main body is greater when the disposable pull-on garment is in a contracted configuration than when the disposable pull-on garment is in an uncontracted configuration.

Abstract: A disposable pull-on garment comprising an absorbent main body and a ring-like elastic belt is disclosed. The pull-on garment has a waist opening and leg openings and extends in a longitudinal direction and a transverse direction. The pull-on garment comprises an absorbent main body and a ring-like elastic belt. The absorbent main body comprises a liquid pervious topsheet, a liquid impervious backsheet and an absorbent core disposed therebetween. The absorbent main body has longitudinal side edges, transverse end edges, a front waist panel, a back waist panel and a crotch panel. The front waist panel and the back waist panel are not joined directly. The ring-like elastic belt is surrounded by a transverse waist border and a transverse abdomen border. The ring-like elastic belt has a central panel and side panels. The central panel is joined to the front waist panel and the back waist panel of the absorbent main body to form one waist opening and two leg openings.

Abstract: An optical scanning apparatus includes a rotatable polygonal mirror for deflecting first and second laser beams, which are incident on the polygonal mirror at diff(rent positions with respect to a rotational direction of the polygonal mirror; a first optical member for transmitting the first laser beam; a second optical member for transmitting the second laser beam; a laser beam blocking member, disposed between the first optical member and the second optical member, for blocking the first laser beam reflected by the first optical member to prevent the first laser beam reflected by the first optical member from being incident on the second optical member.

Abstract: An image forming apparatus includes a deflection unit for deflection scanning a first and a second laser beam, a first photosensitive member being exposed by the first laser beam deflection, and a second photosensitive member being disposed at a location more distant from the deflection unit than the first photosensitive member, the second photosensitive member being exposed by the second laser beam. A first reflection member reflects the first laser beam deflection scanned by the deflection unit in a direction away from the first photosensitive member. A second reflection member reflects the first laser beam reflected by the first reflection member toward the first photosensitive member. The first reflection member is disposed nearer to the first photosensitive member than the second laser beam projected from the deflection unit, whereas the second reflection member is disposed remoter from the first photosensitive member than the second laser beam projected from the deflection unit.

Abstract: An absorbent article having extensibility at waist panel is disclosed. The absorbent article includes a liquid pervious topsheet, an absorbent core disposed underneath the topsheet, and a chassis layer. A first or second waist panel includes a portion of the chassis layer. The chassis layer includes a plurality of spaced discontinuities regularly disposed in at least a portion of the first or second waist panel. The discontinuities are open to provide the chassis layer with extensibility in the transverse direction when the first or second waist panel is subjected to tension. The absorbent article also includes an extensibility controlling means to control the extensibility of the chassis layer.

Abstract: An absorbent article comprising a stretchable fastening member is disclosed. The absorbent article comprises a chassis and a stretchable fastening member. The chassis extends longitudinally and laterally and comprises a liquid pervious topsheet, a liquid impervious backsheet and an absorbent core disposed therebetween. The stretchable fastening member comprises a fixed portion permanently joined to the chassis, a distal portion provided with a fastening material and a stretchable panel positioned between the fixed portion and the distal portion. The stretchable fastening member is joined to the chassis such that the distal portion is positioned laterally outwardly from the fixed portion in the flat-out configuration of the stretchable fastening member. The stretchable panel of the stretchable fastening member comprises a first stretchable zone and a second stretchable zone disposed in the lateral direction.

Abstract: An image forming apparatus includes a deflection unit for deflection scanning a first and a second laser beam, a first photosensitive member being exposed by the first laser beam deflection, and a second photosensitive member being disposed at a location more distant from the deflection unit than the first photosensitive member, the second photosensitive member being exposed by the second laser beam. A first reflection member reflects the first laser beam deflection scanned by the deflection unit in a direction away from the first photosensitive member. A second reflection member reflects the first laser beam reflected by the first reflection member toward the first photosensitive member. The first reflection member is disposed nearer to the first photosensitive member than the second laser beam projected from the deflection unit, whereas the second reflection member is disposed remoter from the first photosensitive member than the second laser beam projected from the deflection unit.

Abstract: An extensible apertured nonwoven web, and a method for making such an apertured nonwoven web. In one embodiment the method comprises the steps of providing an apertured nonwoven web, incrementally stretching it in a direction substantially parallel to the cross machine direction, and applying tension in the machine direction such that the web width after applying tension is less than the web width after incremental stretching.

Abstract: An absorbent article adapted to be worn about the lower torso of a wearer. The article includes a liquid-impervious, flexible backsheet adapted to face outwardly relative to the body a wearer, a liquid-pervious topsheet adapted to face the body of the wearer, and an absorbent core positioned between the backsheet and the topsheet. The topsheet is preferably elastically extensible and includes a plurality of slits or cuts that extend through the topsheet material and that enlarge to define a plurality of openings in the topsheet when it is subjected to tensile forces as it is worn. The openings permit solid and semi-solid bodily exudates to pass through the topsheet to the absorbent core as the diaper is worn. Upon removal of the diaper from the body of the wearer the tensile forces within the topsheet are relaxed, thereby causing the openings in the topsheet to close and substantially conceal from view the bodily exudates that have passed through the topsheet.

Abstract: An absorbent article adapted to be worn about the lower torso of a wearer. The article includes a liquid-impervious, flexible backsheet adapted to face outwardly relative to the body a wearer, a liquid-pervious topsheet adapted to face the body of the wearer, and an absorbent core positioned between the backsheet and the topsheet. The topsheet is elastically extensible and includes a plurality of slits or cuts that extend through the topsheet material and that enlarge to define a plurality of openings in the topsheet when it is subjected to tensile forces as it is worn. The openings permit solid and semi-solid bodily exudates to pass through the topsheet to the absorbent core as the diaper is worn. Upon removal of the diaper from the body of the wearer the tensile forces within the topsheet are relaxed, thereby causing the openings in the topsheet to close and substantially conceal from view the bodily exudates that had passed through the topsheet.