Abstract:
A cleaning device scrapes off and removes toner that has adhered to a surface of a rotating photoreceptor, and includes: a cleaning member formed of an elastic body; a leaf spring member for pressing the cleaning member against the surface of the photoreceptor; and a support portion supporting the leaf spring member. The cleaning member is fixed to one end of the leaf spring member, and the other end of the leaf spring member is fixed to the support portion with a cushioning member formed of an elastic body interposed therebetween. The cushioning member is fixed to the other end of the leaf spring member by an adhesive.
Abstract:
An image forming device including a photoreceptor with a protective layer, a contact charger; and a metal cleaning blade, wherein the cleaning blade includes a first region and a second region facing the photoreceptor, the first region is of a predefined roughness, and J>h×(cos α/sin β)×d, where α is an angle between the first region and a tangent plane of the second region, β is an angle between the first region and a tangent line of the surface of the photoreceptor at a point of contact with the cleaning blade, h is an amount of depletion of the cleaning blade in a direction perpendicular to the surface of the photoreceptor at the point of contact when the surface of the photoreceptor travels a unit of distance, and d is a predicted total travel distance of the surface of the photoreceptor in a defined time period.
Abstract:
A cleaning device includes a cleaner that cleans a body to be cleaned, wherein the cleaner includes: an elastic member in which a contact portion in contact with the body to be cleaned is formed in an uneven shape continuous in a predetermined direction; and a support member that supports the elastic member, and the cleaner is configured so that a contact pressure of the elastic member to the body to be cleaned is constant in the predetermined direction.
Abstract:
An image forming apparatus includes a cleaning member formed by an elastic body, and a member to be cleaned in which toner added with an external additive adheres to a surface, and the toner is to be cleaned by the cleaning member being in contact with the surface, wherein the cleaning member has a protrusion disposed on a cleaning surface extending from a contact part with the member to be cleaned, and facing a side where the toner is to be cleaned, of the member to be cleaned.
Abstract:
An image forming apparatus having: an image supporting member; a developing device configured to supply a developer to the image supporting member to develop a latent image; a transfer member configured to transfer the developed image from the image supporting member to a transfer medium; a blade configured to remove the developer left on the image supporting member after transfer therefrom; a storing member located downstream from the transfer member and upstream from the blade, the storing member configured to temporarily store a part of the developer left after transfer therein; and a control unit. The storing member is controlled by the control unit to release the temporarily stored developer therefrom toward the image supporting member after a lapse of a predetermined time from when an image density of an image to be formed becomes lower than a predetermined value.
Abstract:
A method applicable to an image forming apparatus with a lubricant to be applied to a surface of a photoreceptor for measuring surface roughness of the surface of the photoreceptor after lubricant application, the method including: a first step of measuring a surface profile of the photoreceptor and obtaining first data indicating the surface profile; a second step of generating second data on the basis of the first data, the second data indicating arithmetic mean roughness Ra within a predetermined range; and a third step of calculating a difference value ΔRa between second data before lubricant application and second data after lubricant application obtained by performing the first and second steps both before and after the lubricant is applied to the photoreceptor.
Abstract:
In an image forming apparatus, when some of a plurality of image supporters which are preceded by another image supporter on an upstream side of the carrying direction are referred to as downstream side image supporters, a control section derives a toner supply amount for each of positions in a main-scanning direction for each of downstream side image supporters based on image data for the downstream side image supporters and image data for an upstream side image supporter, and thereafter generates patch image data that represents the derived toner supply amount, and the exposure section further scans each of the downstream side image supporters in the main-scanning direction with an optical beam modulated according to the patch image data generated by the control section.
Abstract:
An image forming apparatus for forming an image on a rotative image carrier and transferring the image onto an object, including: a cleaning unit removing a residual material from the image carrier; and a lubricant applying unit applying lubricant to a circumferential surface of the image carrier, the lubricant applying unit including: a rotative transporter picking up and retaining lubricant, transporting the lubricant to a lubricant application point, and supplying a portion of the lubricant to the image carrier at the lubricant application point; an ejector causing the transporter to eject a portion of the lubricant retained by the transporter; a collector collecting the portion of the lubricant ejected from the transporter; and a controller controlling ejection of the portion of the lubricant so as to maintain the amount of the lubricant retained by the transporter as no greater than a predetermined upper limit.
Abstract:
A cleaning device scrapes off and removes toner that has adhered to a surface of a rotating photoreceptor, and includes: a cleaning member formed of an elastic body; a leaf spring member for pressing the cleaning member against the surface of the photoreceptor; and a support portion supporting the leaf spring member. The cleaning member is fixed to one end of the leaf spring member, and the other end of the leaf spring member is fixed to the support portion with a cushioning member formed of an elastic body interposed therebetween. The cushioning member is fixed to the other end of the leaf spring member by an adhesive.
Abstract:
A charger includes a charging roller and a support portion which rotationally supports the charging roller. The charging roller includes a first region which is opposed to the support portion and a second region which is not opposed to the support portion. The charging roller includes a conductive shaft, an end part cover portion which is in contact with and covers the conductive shaft in a portion corresponding to the first region and is in slide contact with the support portion, and a high-resistance coating which is in contact with and covers the conductive shaft in a portion corresponding to the second region and abuts on a charged object. An inner end portion of the end part cover portion is covered with the high-resistance coating, and a thickness of the high-resistance coating is equal to or greater than a thickness of the end part cover portion.