摘要:
An image forming apparatus including an image carrier, a charger, an electrostatic latent image forming member, a developing member, a transferor, and a cleaning device. The electrostatic latent image forming member forms an electrostatic latent image on a surface of the image carrier charged by the charger. The developing member develops the electrostatic latent image formed on the surface of the image carrier with toner particles to form a toner image. The transferor transfers the toner image formed on the surface of the image carrier onto a recording medium. The cleaning device includes a fine particle supplier and an electrostatic cleaning mechanism. The fine particle supplier supplies fine particles onto the surface of the image carrier while an image forming operation is not performed. The electrostatic cleaning mechanism electrostatically removes a foreign substance adhered to the supplied fine particles from the surface of the image carrier.
摘要:
A cleaning device removes residual toner particles from a cleaning target, such as a photoconductor, which has a moving surface. The cleaning device includes a cleaning brush, a power circuit, and a cleaning member. The cleaning brush includes a brush rotation shaft, and the power circuit applies a first voltage of a first polarity to the brush rotation shaft. The cleaning member applies a second voltage of the first polarity to the cleaning brush. If the first polarity is negative, the cleaning member electrostatically removes toner particles having a positive polarity from the cleaning target. Then, the cleaning brush is triboelectrically charged to a second polarity, which is opposite to the first polarity, by contacting the cleaning target. Accordingly, the cleaning brush also removes residual toner particles having a negative polarity. Thus, the cleaning device removes both positively and negatively charged toner particles to clean the cleaning target.
摘要:
A cleaning apparatus for removing charged particles includes a cleaning brush and a recovery unit. The cleaning brush removes the charged particles from an object by attracting the charged particles having positive and negative polarity. The recovery unit for recovering the charged particles from the cleaning brush includes a recovery member, a first charge applicator, a second charge applicator, and a voltage control unit. The recovery member is supplied with a voltage to attract the charged particles. The recovery member has a core and a surface layer. The first charge applicator applies a voltage to the surface layer of the recovery member. The second charge applicator applies a voltage to the core of the recovery member. The voltage control unit controls a polarity of the voltage to be applied by the first and second charge applicators depending on a polarity of the charged particles to be recovered.
摘要:
A cleaning device includes a cleaning member, a collection member, an electrical field generator, and a separation member. The cleaning member has a surface capable of moving while contacting a surface of a cleaning target to remove toner on the surface of the cleaning target. The collection member has a surface capable of moving while contacting the surface of the cleaning member to collect the toner on the surface of the cleaning member. The electrical field generator generates an electrical field to move the toner from the cleaning member to the collection member. The separation member contacts the surface of the collection member to separate the toner on the surface of the collection member. The collection member has a centerline average surface roughness of not more than 0.1 μm and shows a surface hardness rank of B or higher in a steel-wool scratch test.
摘要:
A cleaning apparatus for removing charged particles includes a cleaning brush and a recovery unit. The cleaning brush removes the charged particles from an object by attracting the charged particles having positive and negative polarity. The recovery unit for recovering the charged particles from the cleaning brush includes a recovery member, a first charge applicator, a second charge applicator, and a voltage control unit. The recovery member is supplied with a voltage to attract the charged particles. The recovery member has a core and a surface layer. The first charge applicator applies a voltage to the surface layer of the recovery member. The second charge applicator applies a voltage to the core of the recovery member. The voltage control unit controls a polarity of the voltage to be applied by the first and second charge applicators depending on a polarity of the charged particles to be recovered.
摘要:
A cleaning device includes a cleaning member, a collection member, an electrical field generator, and a separation member. The cleaning member has a surface capable of moving while contacting a surface of a cleaning target to remove toner on the surface of the cleaning target. The collection member has a surface capable of moving while contacting the surface of the cleaning member to collect the toner on the surface of the cleaning member. The electrical field generator generates an electrical field to move the toner from the cleaning member to the collection member. The separation member contacts the surface of the collection member to separate the toner on the surface of the collection member. The collection member has a centerline average surface roughness of not more than 0.1 μm and shows a surface hardness rank of B or higher in a steel-wool scratch test.
摘要:
A cleaning brush configured to remove toner from a surface of a member of an image forming apparatus; wherein the cleaning brush includes a plurality of fibers having an inside part formed from a conductive material and a surface part formed by an insulating material.
摘要:
A cleaning device including a cleaning brush to which a voltage is applied to remove residual toner particles from a cleaning target having a moving surface. The cleaning brush is configured to be triboelectrically charged to a polarity opposite to that of the voltage applied to the cleaning brush by contacting the cleaning target.
摘要:
A cleaning device including a polarity control unit to control a charge polarity of residual toner particles, a cleaning member, a surface of which is movable, to electrostatically remove the residual toner particles, provided on a downstream side from the polarity control unit relative to a surface moving direction of an image bearing member, a toner collecting unit to collect the residual toner particles on the cleaning member, and a neutralizing member to neutralize the image bearing member, provided on a downstream side from the polarity control unit and an upstream side from the cleaning member relative to the surface moving direction of the image bearing member.
摘要:
A cleaning device including a polarity control unit to control a charge polarity of residual toner particles, a cleaning member, a surface of which is movable, to electrostatically remove the residual toner particles, provided on a downstream side from the polarity control unit relative to a surface moving direction of an image bearing member, a toner collecting unit to collect the residual toner particles on the cleaning member, and a neutralizing member to neutralize the image bearing member, provided on a downstream side from the polarity control unit and an upstream side from the cleaning member relative to the surface moving direction of the image bearing member.