摘要:
A cleaner for cleaning a surface of a rotating material, including an elastic blade arranged to counter the rotating material while a tip of the elastic blade is contacted with the surface of the rotating material to clean the surface of the rotating material, wherein the elastic blade has a first surface facing the rotating material, and a second surface opposite to the first surface thereof, and wherein the elastic blade has a recessed portion, which has a bottom surface and a wall, in a rear portion of the second surface; and a support plate configured to support the elastic blade, wherein the support plate has a first surface facing the rotating material, a second surface opposite to the first surface and a tip surface, wherein the elastic blade is connected with the support plate in such a manner that the bottom surface and the wall of the recessed portion of the blade are contacted with the first surface and the tip surface of the support plate, respectively.
摘要:
A cleaning device and process cartridge including the same for an image formation apparatus, which prevents cleaning failures due to toner slipping past a blade, based on an equation for the force of toner particle rotation and the restraining force. Toner on an image carrier is removed by a blade. The relation between the blade and the image carrier satisfies the equation f(θ)=μ2−μ1×(Ntp/Nbt+cosθ)>0. Here μ1 is the friction coefficient between toner and image carrier, μ2 is the friction coefficient between toner and blade, Ntp is the adhesive force between toner and image carrier, Nbt is the force received by the toner from the blade, and θ is the angle formed by the blade and image carrier (the cleaning angle).
摘要:
A cleaning device including an elastic blade whose tip is contacted with a surface of a rotating member in such a manner as to counter the rotated member to remove particles of a toner on the rotated member; and a holder configured to support the elastic blade, wherein a nip formed by longitudinal end portions of the tip of the blade and the surface of the rotated member has a first nip width in a rotation direction of the rotated member, and a nip formed by a central portion of the blade and the surface of the rotated member has a second nip width, and wherein the first nip width is less than the second nip width.
摘要:
An image forming apparatus of the present invention includes a cleaning brush positioned upstream of a blade nip in the direction of movement of the surface of a photoconductive drum. To prevent toner from accumulating at the blade nip, the surface of the photoconductive drum is moved in the direction opposite to the regular direction for image formation, conveying toner accumulated in a wedge-shaped space upstream of the blade nip 2n to a position where the cleaning brush removes it. With this configuration, the image forming apparatus can stably clear spherical toner particles left on the drum over a long period of time.
摘要:
In a cleaning device cleans off toners from a surface of an image carrier and a collection roller. The toners have a roundness of 0.96 degrees to 1.00 degrees. The cleaning device includes a brush roller that cleans toners from the image carrier, the collection roller that cleans toners from the brush roller, and a cleaning unit that cleans toner from the collection roller. The cleaning unit includes a blade that abuts a surface of the collection roller; a vibrating unit that vibrates the blade; and an oscillating unit that oscillates the vibrating unit. The cleaning unit cleans off toners by a vibration of a portion of the blade in which portion the blade member contacts with the collection roller.
摘要:
An image forming apparatus of the present invention includes a cleaning brush positioned upstream of a blade nip in the direction of movement of the surface of a photoconductive drum. To prevent toner from accumulating at the blade nip, the surface of the photoconductive drum is moved in the direction opposite to the regular direction for image formation, conveying toner accumulated in a wedge-shaped space upstream of the blade nip 2n to a position where the cleaning brush removes it. With this configuration, the image forming apparatus can stably clear spherical toner particles left on the drum over a long period of time.
摘要:
A cleaning device including an elastic blade whose tip is contacted with a surface of a rotating member in such a manner as to counter the rotated member to remove particles of a toner on the rotated member; and a holder configured to support the elastic blade, wherein a nip formed by longitudinal end portions of the tip of the blade and the surface of the rotated member has a first nip width in a rotation direction of the rotated member, and a nip formed by a central portion of the blade and the surface of the rotated member has a second nip width, and wherein the first nip width is less than the second nip width.
摘要:
A cleaner for cleaning a surface of a rotating material, including an elastic blade arranged to counter the rotating material while a tip of the elastic blade is contacted with the surface of the rotating material to clean the surface of the rotating material, wherein the elastic blade has a first surface facing the rotating material, and a second surface opposite to the first surface thereof, and wherein the elastic blade has a recessed portion, which has a bottom surface and a wall, in a rear portion of the second surface; and a support plate configured to support the elastic blade, wherein the support plate has a first surface facing the rotating material, a second surface opposite to the first surface and a tip surface, wherein the elastic blade is connected with the support plate in such a manner that the bottom surface and the wall of the recessed portion of the blade are contacted with the first surface and the tip surface of the support plate, respectively.
摘要:
A cleaning device and process cartridge comprising same for an image formation apparatus, which prevents cleaning failures due to toner slipping past a blade, based on an equation for the force of toner particle rotation and the restraining force. Toner on an image carrier is removed by a blade. The relation between the blade and the image carrier satisfies the equation f(θ)=μ2−μ1×(Ntp/Nbt+cos θ)>0. Here μ1 is the friction coefficient between toner and image carrier, μ2 is the friction coefficient between toner and blade, Ntp is the adhesive force between toner and image carrier, Nbt is the force received by the toner from the blade, and θ is the angle formed by the blade and image carrier (the cleaning angle).
摘要:
A cleaning device cleans off a toner from a surface of a member rotating in a first direction. The cleaning device includes a blade made of an elastic material including a tip portion with a slanting portion that is pressed against the surface in a second direction counter to the first direction. A supporter supports the blade. An angle between the slanting portion and a longitudinal direction of the blade is obtuse. The slanting portion is pressed against the surface at a surface pressure of 2.0 MPa or more.