摘要:
Toner is supplied from a toner container to a developing part that causes the toner to adhere to a latent image formed on a latent image carrying member and develops the latent image, a pre-toner-supply operation of supplying a predetermined amount of toner to the developing part is carried out, a fog detecting image is formed and fog is detected in the fog detecting image, a toner supply amount to be supplied to the developing part is determined based on the fog detected in the detecting and an operational status of the developing part since the toner was supplied to the developing part the last time, and the toner supply amount of the toner determined in the determining is supplied to the developing part.
摘要:
A developing device is provided which includes: a developing roller in contact with or facing an image hearer; a supply roller to supply toner to the developing roller; a casing; a first conveyer disposed within the casing and above the supply roller to supply toner stored in the developing device to the supply roller, while forming a first conveyance path; a second conveyer disposed within the casing with an upper end thereof positioned below that of the first conveyer, while forming a second conveyance path forming a toner circulation path together with the first conveyance path; a partition wall separating the first conveyance path and the second conveyance path in a longitudinal direction within a range excluding both longitudinal end portions; and a toner supply port, at a ceiling of the casing above the second conveyance path, through which toner is supplied to an inside of the developing device.
摘要:
A seal is provided to contact a rotating body installed in an image forming apparatus. Pencil hardness of the sealing element is about 2H or more and a water drop contact angle thereof is about 90 degrees or more.
摘要:
A seal is provided to contact a rotating body installed in an image forming apparatus. Pencil hardness of the sealing element is about 2H or more and a water drop contact angle thereof is about 90 degrees or more.
摘要:
Toner is supplied from a toner container to a developing part that causes the toner to adhere to a latent image formed on a latent image carrying member and develops the latent image, a pre-toner-supply operation of supplying a predetermined amount of toner to the developing part is carried out, a fog detecting image is formed and fog is detected in the fog detecting image, a toner supply amount to be supplied to the developing part is determined based on the fog detected in the detecting and an operational status of the developing part since the toner was supplied to the developing part the last time, and the toner supply amount of the toner determined in the determining is supplied to the developing part.
摘要:
A toner supplying method for supplying toner from a toner container to a developing part that causes toner to adhere to a latent image formed on a latent image carrying member and develops the latent image, includes detecting a toner amount in the developing part as being equal to or less than a predetermined toner amount value; forming a fog detecting image in a case where the toner amount in the developing part is equal to or less than the predetermined toner amount value, and detecting fog; and determining based on the detected fog whether to execute a toner ejecting process of ejecting the toner remaining in the developing part toward the latent image carrying member before supplying the toner to the developing part from the toner container.
摘要:
A developing unit includes: a developer carrier; a toner supplying member having a porous surface layer; a toner storage storing therein toner; a stirring member that is rotated to stir the toner; a toner amount detecting unit that detects an amount of the toner; a toner supplying unit that supplies new toner to the toner storage based on a detection result; and a toner removing member that removes the toner carried in the porous surface layer, wherein the toner removing member is arranged in a separable and contactable manner from and with the porous surface layer, and the developing unit has a stirring mode in which the toner removing member is brought into contact with the porous surface layer, and the toner supplying member is rotated while the stirring member is rotated to stir the toner.
摘要:
A developer accommodating device includes a rotator including a rotation shaft, a collar that rotates together with the rotation shaft, and a bearing rotatably supporting the rotation shaft via the collar. The rotation shaft includes a resin material, and collar including a metal material. The collar includes a collar main portion to be in sliding contact with the bearing, and a flange portion closer to a center of the rotator in an axial direction of the rotator than the collar main portion. The collar main portion has a first outer diameter, and the flange portion has a second outer diameter greater than the first outer diameter of the collar main portion.
摘要:
A sealing structure includes a housing to accommodate powder, a powder roller having a surface to bear and convey the powder, and an entrance seal disposed between the powder roller and the housing to allow powder remaining on a circumferential surface of the powder roller to enter the housing. A pair of left and right edge seals is provided in a circumferential direction of the powder roller to overlap with outer circumferential surfaces of both ends of the entrance seal, respectively. Both ends of the entrance seal include powder damming sections extended from both ends thereof along the pair of left and right edge seals, respectively. A pair of inner edges of the respective powder damming sections is each sandwiched between a corresponding one of the pair of left and right edge seals and the powder roller while substantially symmetrically inclining from the rotation direction of the powder roller.
摘要:
A developer container includes: a container body that stores a developer and includes a filling port for the developer; and a container terminal that is attachable to and detachable from the container body. The container body is provided with an identifier that engages with the container terminal and is caused to change own form that can be identified from an outside, by an external force that is applied to detach the container terminal from the container body. The container body is provided with a flow preparation part that separates an inside and outside of the container body before changing the form of the identifier and that allows the air to flow between the inside and outside of the container body after changing the form of the identifier.