Abstract: In a developing device, a developing roller has a circumferential surface and an axial end portion. A thickness-regulating blade includes a pressing part protruding to contact the circumferential surface. A first sealing member is provided between a housing and the axial end portion, and includes a first layer; and a second layer. The first layer has a first layer surface disposed to contact the circumferential surface. The second layer supports the first layer and has a protruding part protruding inward of the first layer in an axial direction of the developing roller and having a second layer surface opposing the circumferential surface. The housing has a wall part disposed between the pressing part and the protruding part in the rotating direction of the developing roller. The wall part has an opposing surface opposing the circumferential surface. A lubricant is applied to the first layer surface and the second layer surface.

Abstract: A developing device includes a casing configured to accommodate developer, a developing roller, a seal member, at least portion of which is disposed between the developing roller and the casing, and which includes a fabric member including a plurality of first fibers extending in a first direction, and a heat radiation member configured to contact end surfaces of the first fibers of the seal member and radiate heat of the seal member.

Abstract: In a developing device, a developing roller has a circumferential surface and an axial end portion. A thickness-regulating blade includes a pressing part protruding to contact the circumferential surface. A first sealing member is provided between a housing and the axial end portion, and includes a first layer; and a second layer. The first layer has a first layer surface disposed to contact the circumferential surface. The second layer supports the first layer and has a protruding part protruding inward of the first layer in an axial direction of the developing roller and having a second layer surface opposing the circumferential surface. The housing has a wall part disposed between the pressing part and the protruding part in the rotating direction of the developing roller. The wall part has an opposing surface opposing the circumferential surface. A lubricant is applied to the first layer surface and the second layer surface.

Abstract: A developer supply device including a developer carrying body, extending in a width direction, configured to carry developer and a casing including an wall, extending in the width direction, disposed between a first room on which the developer carrying body is disposed and a second room configured to store the developer is provided. The first room and the second room communicate each other through an opening formed above the wall. The wall includes end portions having a first height and a central portion. The central portion is disposed between the end portions and has a second height which is higher than the first height.

Abstract: A developing device including a housing, a developing roller rotatably provided to the housing, a layer thickness regulation blade contacting the developing roller, and a seal member arranged between the housing and each end of the developing roller, wherein the layer thickness regulation blade includes a blade main body extending along an axial direction of the developing roller, and a blade rubber part protruding from a surface of the blade main body facing the developing roller and contacting the developing roller, wherein an end surface of the blade rubber part in the axial direction is in contact with an inner end surface of the seal member in the axial direction, and wherein a suppression part configured to suppress a strength of flow of the developer is provided at a corner part between the blade rubber part and the seal member.

Abstract: A developing device including a housing, a developing roller, a seal member arranged between the housing and each end of the developing roller, and a layer thickness regulation blade including a blade main body, and a blade rubber part protruding from a surface of the blade main body and contacting the developing roller, wherein an end surface of the blade rubber part in an axial direction of the developing roller is in contact with an inner surface of the seal member in the axial direction, and wherein the blade rubber part has an inclined surface at each end thereof in the axial direction, the inclined surface extending toward an upstream side in a rotating direction of the developing roller while extending toward an outer side in the axial direction so as to extend to the seal member.

Abstract: A developing device includes a casing configured to accommodate developer, a developing roller, a seal member, at least a portion of which is disposed between the developing roller and the casing, the seal member including a fabric member having plural fibers extending in a first direction and plural second fibers extending in a second direction, wherein the plural first fibers and the plural second fibers are intersecting each other, and each of the fibers of the fabric member include a circumferential surface which has a first heat radiation amount per unit area, and an end surface having a second heat radiation amount per unit area larger than the first heat radiation amount, and a heat radiation member disposed at an end portion of the seal member in an axial direction of the developing roller and is configured to contact the end surfaces of the fibers.

Abstract: A developing device including a housing, a developing roller rotatably provided to the housing, a layer thickness regulation blade contacting the developing roller, and a seal member arranged between the housing and each end of the developing roller, wherein the layer thickness regulation blade includes a blade main body extending along an axial direction of the developing roller, and a blade rubber part protruding from a surface of the blade main body facing the developing roller and contacting the developing roller, wherein an end surface of the blade rubber part in the axial direction is in contact with an inner end surface of the seal member in the axial direction, and wherein a suppression part configured to suppress a strength of flow of the developer is provided at a corner part between the blade rubber part and the seal member.

Abstract: A developing device including a housing, a developing roller, a seal member arranged between the housing and each end of the developing roller, and a layer thickness regulation blade including a blade main body, and a blade rubber part protruding from a surface of the blade main body and contacting the developing roller, wherein an end surface of the blade rubber part in an axial direction of the developing roller is in contact with an inner surface of the seal member in the axial direction, and wherein the blade rubber part has an inclined surface at each end thereof in the axial direction, the inclined surface extending toward an upstream side in a rotating direction of the developing roller while extending toward an outer side in the axial direction so as to extend to the seal member.

Abstract: A developing device includes a casing configured to accommodate developer, a developing roller, a seal member, at least a portion of which is disposed between the developing roller and the casing, the seal member including a fabric member having plural fibers extending in a first direction and plural second fibers extending in a second direction, wherein the plural first fibers and the plural second fibers are intersecting each other, and each of the fibers of the fabric member include a circumferential surface which has a first heat radiation amount per unit area, and an end surface having a second heat radiation amount per unit area larger than the first heat radiation amount, and a heat radiation member disposed at an end portion of the seal member in an axial direction of the developing roller and is configured to contact the end surfaces of the fibers.

Abstract: A developing device includes a casing configured to accommodate developer, a developing roller, a seal member, at least portion of which is disposed between the developing roller and the casing, and which includes a fabric member including a plurality of first fibers extending in a first direction, and a heat radiation member configured to contact end surfaces of the first fibers of the seal member and radiate heat of the seal member.

Abstract: A developer supply device is provided, which includes a developer retrieving member disposed to face a developer holding surface of a developer holding member across a predetermined distance in a position downstream relative to a developer supply position where the developer holding member faces an intended device to be supplied with development agent in a direction perpendicular to a main scanning direction parallel to an axial direction of the developer holding member. The developer retrieving member is driven to rotate around an axis parallel to the main scanning direction and configured to retrieve the development agent from the developer holding surface under a retrieving electric field that is generated when a retrieving voltage is applied between the developer retrieving member and the developer holding member.

Abstract: A developer supply device is provided, which includes a casing including a developer storage section at a bottom portion therein and an opening formed at an end thereof away from the developer storage section, development agent chargeable with a predetermined polarity, stored in the developer storage section, and a transfer board that is disposed in the casing and configured to transfer the development agent stored in the developer storage section when a multi-phase alternating-current voltage is applied to transfer electrodes of the transfer board. The development agent includes a mother particle having, around an outer surface thereof, an electrically insulating layer without a polar group having a charge polarity identical to the predetermined polarity, and an external additive, absorbed to around the mother particle in an easily desorbable manner, which is an electrically insulating fine particle having a charge polarity identical to the predetermined polarity.

Abstract: A developer supply device including a developer carrying body, extending in a width direction, configured to carry developer and a casing including an wall, extending in the width direction, disposed between a first room on which the developer carrying body is disposed and a second room configured to store the developer is provided. The first room and the second room communicate each other through an opening formed above the wall. The wall includes end portions having a first height and a central portion. The central portion is disposed between the end portions and has a second height which is higher than the first height.

Abstract: An electronic image is received by a system to process the image for the presence of a face. The image is repeatedly electronically scanned using a plurality of windows for the presence of facial poses. A plurality of directional poses is detected during the scanning process. Reliabilities for each type of detected poses are calculated. The reliabilities are based on the amount of times the directional poses are detected during the scanning process and directions of the directional poses.

Abstract: A developer supply apparatus is provided which supplies a toner to a supply object, the developer supply apparatus including a developer storage body which stores a powdery developer, and a transfer body which transfers the developer along the developer transfer path with traveling wave electric fields. The developer includes a toner having a predetermined charging characteristic and an electric neutralizer having an opposite charging characteristic, which is opposite to the predetermined charging characteristic.

Abstract: A developer supply device is provided, which includes a developer retrieving member having a plurality of fibers extending from an outer circumferential surface of the developer retrieving member, the developer retrieving member being disposed in such a position that the fibers contact a developer carrying surface of a developer carrying body in a developer retrieving position downstream relative to a developer supply position in a moving direction of the developer carrying surface, the developer retrieving member being configured to rotate and retrieve the development agent from the developer carrying surface in the developer retrieving position by the fibers moving in contact with the developer carrying surface in response to the rotation of the developer retrieving member.

Abstract: A developer supply device is provided, which includes a casing including a developer storage section at a bottom portion therein and an opening formed at an end thereof away from the developer storage section, development agent chargeable with a predetermined polarity, stored in the developer storage section, and a transfer board that is disposed in the casing and configured to transfer the development agent stored in the developer storage section when a multi-phase alternating-current voltage is applied to transfer electrodes of the transfer board. The development agent includes a mother particle having, around an outer surface thereof, an electrically insulating layer without a polar group having a charge polarity identical to the predetermined polarity, and an external additive, absorbed to around the mother particle in an easily desorbable manner, which is an electrically insulating fine particle having a charge polarity identical to the predetermined polarity.

Abstract: An object of the present teachings is to provide a method for producing a negative charging toner having a fine surface charge state. For this object the present teachings provide a method for producing a negative charging toner comprising a polyester resin as a main component is provided. The method comprises steps of producing base particles by emulsifying the polyester resin; causing a positively charged compound to be carried on the surfaces of the base particles and producing toner base particles by bringing the base particles carrying the positively charged compound into contact with negative charge control resin microparticles such that the negative charge control resin microparticles are fixed to the surfaces of the base particles.

Abstract: A developer supply device is provided, which includes a developer retrieving member disposed to face a developer holding surface of a developer holding member across a predetermined distance in a position downstream relative to a developer supply position where the developer holding member faces an intended device to be supplied with development agent in a direction perpendicular to a main scanning direction parallel to an axial direction of the developer holding member. The developer retrieving member is driven to rotate around an axis parallel to the main scanning direction and configured to retrieve the development agent from the developer holding surface under a retrieving electric field that is generated when a retrieving voltage is applied between the developer retrieving member and the developer holding member.