Abstract: A suspension seat, including: a lower side member that forms a vehicle lower side of a suspension; an upper side member that forms a vehicle upper side of the suspension, and that is configured to support a vehicle seat body from the vehicle lower side; a suspension link mechanism that includes a vehicle lower side portion coupled to the lower side member and a vehicle upper side portion coupled to the upper side member, and that undergoes displacement so as to displace the upper side member along a vehicle vertical direction; a linear displacement section that is provided at the suspension link mechanism and is configured to undergo linear displacement in conjunction with displacement of the suspension link mechanism; and a locking mechanism that immobilizes the linear displacement section so as to immobilize displacement of the suspension link mechanism.

Abstract: A suspension seat, including: a lower side member that forms a vehicle lower side of a suspension; an upper side member that forms a vehicle upper side of the suspension, and that is configured to support a vehicle seat body from the vehicle lower side; a suspension link mechanism that includes a vehicle lower side portion coupled to the lower side member and a vehicle upper side portion coupled to the upper side member, and that undergoes displacement so as to displace the upper side member along a vehicle vertical direction; a linear displacement section that is provided at the suspension link mechanism and is configured to undergo linear displacement in conjunction with displacement of the suspension link mechanism; and a locking mechanism that immobilizes the linear displacement section so as to immobilize displacement of the suspension link mechanism.

Abstract: A favorable appearance can be achieved using a simple configuration, even when the configuration is provided with a back shell that moves up and down relative to a back frame. In a vehicle seat 10, the back of a seated person is adapted to be supported by a movable back shell 42 that is supported so as to be capable of moving in an up-down direction relative to a back frame 30. A non-movable back shell 46 that is attached so as to be incapable of displacement relative to the back frame 30 is disposed on a back face side of the movable back shell 42, and the back frame 30 is covered by the non-movable back shell 46.

Abstract: A favorable appearance can be achieved using a simple configuration, even when the configuration is provided with a back shell that moves up and down relative to a back frame. In a vehicle seat 10, the back of a seated person is adapted to be supported by a movable back shell 42 that is supported so as to be capable of moving in an up-down direction relative to a back frame 30. A non-movable back shell 46 that is attached so as to be incapable of displacement relative to the back frame 30 is disposed on a back face side of the movable back shell 42, and the back frame 30 is covered by the non-movable back shell 46.

Abstract: The actuator mechanism of the present embodiment comprises the first cylinder, a rod protruding from the first cylinder to lift a hood and lock balls arranged along the outer periphery of the rod and digging into the rod when the rod is pushed back. The diameter of the lock balls and the lapping amount of the lock balls are within specific ranges.

Abstract: An image forming apparatus includes an image bearing member; a developing device including a carrying member for carrying a one component developer and for developing an electrostatic image formed on the image bearing member with the developer; a rotatable developer supplying device, contacted to the carrying member, for supplying the developer to the carrying member; a developer regulating device for regulating an amount of the developer carried on the carrying member; a developer stirring device for stirring the developer a developer supply device for supplying the developer to the developing device; and a controller for controlling supply of the developer to the developing device from the developer supply device. A lower end of the developer stirring device is disposed at a position which is vertically above an upper end of the developer supplying device and which is vertically above a contact portion between the carrying member and the developer regulating device.

Abstract: The actuator mechanism of the present embodiment comprises the first cylinder, a rod protruding from the first cylinder to lift a hood and lock balls arranged along the outer periphery of the rod and digging into the rod when the rod is pushed back. The diameter of the lock balls and the lapping amount of the lock balls are within specific ranges.

Abstract: An image forming apparatus includes an image bearing member; a developing device including a carrying member for carrying a developer and for developing an electrostatic image formed on the image bearing member with a developer, a developer supplying means, contacted to the carrying member, for supplying the developer to the carrying member, and developer regulating means for regulating an amount of the developer carried on the carrying member; supply means for supplying the developer to the developing device; control means for controling supply of the developer to the developing device from the supply means, wherein the developing device further includes developer stirring means for stirring the developer supplied from the supply means and for supplying the developer to the supplying means, wherein the stirring means has a lower end disposed at a position which is vertically above an upper end of the supplying means and which is vertically above a contact portion between the carrying member and the developer

Abstract: An image-forming apparatus includes an image-bearing member for holding thereon an electrostatic latent image; a charging device for electrostatically charging a surface of the image-bearing member; an exposure unit for forming the electrostatic latent image on the image-bearing member by exposing to light the image-bearing member having been charged by the charging device; and a developing unit which has at least a toner-carrying member for carrying and transporting a negatively-chargeable toner thereon and developing the electrostatic latent image by a contact developing system to form a toner image. In the triboelectric series relationship between the toner and a surface layer of the image-bearing member, the surface layer of the image-bearing member has a charge polarity which is a different polarity with respect to the charge polarity of the toner in the developing unit.

Abstract: A developing apparatus includes a developing container for containing a developer therein. A developing carrying member, provided in an opening portion of the developing container, for developing an electrostatic image on an image bearing member, the developer carrying member having a rubber layer and a surface layer on the rubber layer. A seal member is provided in the opening portion for preventing leakage of the developer from an end portion of the opening portion. The seal member provided in the opening portion for preventing leakage of the developer from an end portion of the opening portion, wherein the seal member is in contact with the surface layer except for an end edge thereof.

Abstract: A developing apparatus in which a developer is prevented from attaching to a developer electrifying member. The developing apparatus has a developer carrying body, a regulating member, and a developer carrying member, wherein during a period when developing action is not conducted by the developer carrying body and residual developer is being cleaned, there is a first period during which a first electric field is formed in a direction in which the developer normally charged moves from the developer carrying body to the developer charging member and after the first period there is a second period during which a second electric field is formed in a direction in which the developer normally charged moves from the developer charging member to the developer carrying body.

Abstract: An image forming apparatus and a process cartridge have a wide optimum range of the toner charging amount and produce an excellent gradient and have an image bearing body and a developer carrying body. The electrostatic capacity of the image bearing body per cm2 is not less than 150 pF and not greater than 600 pF.

Abstract: In a developing apparatus having the configuration of charging toner on the developing roller with the toner charging roller, toner charging roller contacts to the developing roller. Since toner adheres onto the toner charging roller by applying the voltage higher than a starting voltage in the developing apparatus, electrifying property of the toner charging roller drops. This causes low image quality since stable charges cannot be given to the toner on the developing roller. Therefore, they are provided, a developing apparatus and an image forming apparatus that can always offer good image quality by preventing adhesion of a developing material to a developer-charging member and always giving stable charges to a developer bearing body and developer.

Abstract: A developing device and a developing method are provided which are capable of steadily supplying sufficiently charged toner to an image bearing member over a long period and always giving a high image quality.

Abstract: An image-forming apparatus comprising an image-bearing member for holding thereon an electrostatic latent image; a charging means for charging the surface of the image-bearing member electrostatically; an exposure unit for forming the electrostatic latent image on the image-bearing member by exposing to light the image-bearing member having been charged by the charging means; and a developing unit which has at least a toner-carrying member for carrying and transporting a toner thereon and developing the electrostatic latent image by a contact developing system to form a toner image. In the triboelectric series relationship between the toner and a surface layer of the image-bearing member, the surface layer of the image-bearing member has a charge polarity which is a different polarity with respect to the charge polarity of the toner in the developing unit.

Abstract: A developing device and a developing method are provided which are capable of steadily supplying sufficiently charged toner to an image bearing member over a long period and always giving a high image quality.

Abstract: The present invention provides a developing apparatus that has a developing container for containing a developer therein, a developer carrying member provided in an opening portion of the developing container, the developer carrying member developing an electrostatic image on an image bearing member, and seal member provided in the opening portion for preventing leakage of the developer from an end portion of the opening portion, the seal member contacting with the end portion of the developer carrying member except for an end edge thereof.

Abstract: A simultaneous developing/cleaning device includes a developer carrying member for carrying a layer of developer, the developer carrying member forming a developing zone where the layer of the developer is contacted to the developer carrying member and to an image bearing member carrying a latent image; and a charge application member for applying electric charge to the developer carried on the developer carrying member by electric discharge, the charge application member being provided upstream of the developing zone with respect to a moving direction of the developer carrying member.

Abstract: An object of the present invention is to provide a developing apparatus in which a developer is prevented from attaching to a developer electrifying member. Another object of the present invention is to provide a developing apparatus that has a developer carrying body, a regulating member, and a developer carrying member, wherein in a period when an developing action is not conducted by the developer carrying body, a period that after a first electric field is formed in a direction in which the developer normally charged moves from the developer carrying body to the developer charging member, a second electric field is formed in a direction in which the developer normally charged moves from the developer charging member to the developer carrying body is provided.

Abstract: An object of the present invention is to provide an image forming apparatus and a process cartridge in which an optimum range of toner charging amount is wide and excellent gradient can be obtained, and which has an image bearing body and a developer carrying body, wherein an electrostatic capacity of the image bearing body per cm2 is not less than 150 pF and not greater than 600 pF.