A drum cartridge is mountable in and dismountable from an image forming apparatus without including a developing device. The drum cartridge includes an image bearing member, a charging member, and a cleaning member. The cleaning member includes an elastic layer contacting the charging member. The elastic layer includes a foam member and is made of a material having Asker-C hardness of 5-30 degrees.

In one example in accordance with the present disclosure, a fluid application device is described. The device includes an application roller to deposit a fluid containing metallic particles on a surface. A squeegee roller of the device forms a first nip with the roller and a cleaner roller forms a second nip with the application roller. A first resistive coating is disposed on a surface of the application roller.

A cleaning device includes a cleaning roller, a bearing member, a guiding member and an energizing member. The cleaning roller includes a second gear meshed with a first gear of an image carrier. The cleaning roller is rotationally driven in an opposite direction to the image carrier by driving force transmitted from the first gear to the second gear. The bearing member supports a core metal of the cleaning roller. The guiding member has a placement face on which the bearing member is placed. The placement face is inclined with regard to a straight line passing through a rotation center of the first gear and a rotation center of the second gear so that a distance between the straight line and the placement face becomes larger, the closer to the first gear. The energizing member energizes the bearing member so as to press the cleaning roller to the image carrier.

To provide a developer regulating member which can generate a uniform frictional charge even on a developer having a small size. A developer regulating member for regulating the thickness of the layer of a developer carried on the surface of a developer carrier, having: a regulating portion contacting with the developer, wherein the regulating portion includes a thermoplastic acrylic resin, and the thermoplastic acrylic resin has a first endothermic peak having a peak top at +50 C. or more and a second endothermic peak having a peak top at +20 C. or less on the differentiation curve of a DSC curve obtained when the temperature is raised from 100 C. to 150 C. at a rate of temperature rise of 20.0 C./min using differential scanning calorimetry (DSC).

A cleaning member includes a shaft, and a foamed elastic layer that is disposed on an outer surface of the shaft and in which a relationship between a stress Pw generated by 70% compression deformation and a stress Ps generated by 10% compression deformation satisfies Pw/Ps6.

In one example, a seal for a developer roller in a liquid electrophotographic printer includes an arcuate body curved along a body arc. The body has an inboard face that defines an annular sealing surface along the body arc to contact a face on one end of the developer roller and a guide surface across the body arc at a first end of the annular sealing surface. The guide surface is oriented along a chord of the body arc and intersects the body arc at an obtuse interior angle, to guide any ink encountering the guide surface outward toward the circular outer surface of the developer roller.

A cleaning device cleans a surface of a toner carrier carrying a toner, and the cleaning device includes: a first blade in contact with the surface of the toner carrier; a second blade made of a material harder than a material of the first blade and in contact with the surface of the toner carrier; and a lubricant applicator that applies a lubricant to the surface of the toner carrier, wherein the first blade, the second blade and the lubricant applicator are arranged in this order from an upstream side in a moving direction of the toner carrier based on a transfer position of the toner.

To provide a developer regulating member which can generate a uniform frictional charge even on a developer having a small size. A developer regulating member for regulating the thickness of the layer of a developer carried on the surface of a developer carrier, having: a regulating portion contacting with the developer, wherein the regulating portion includes a thermoplastic acrylic resin, and the thermoplastic acrylic resin has a first endothermic peak having a peak top at +50 C. or more and a second endothermic peak having a peak top at +20 C. or less on the differentiation curve of a DSC curve obtained when the temperature is raised from 100 C. to 150 C. at a rate of temperature rise of 20.0 C./min using differential scanning calorimetry (DSC).

A cleaning device, for cleaning an image holding body that rotates while holding a toner image on an outer circumferential surface of the image holding body, includes: a scraping member that scrapes toner sticking to the outer circumferential surface of the image holding body in a rotating state by a distal end of the scraping member being in contact with, in the outer circumferential surface, in a region in which the image holding body moves upward from below; a trapping member in which toner scraped from the outer circumferential surface to fall is trapped; and at least one raising member that raises up toner trapped in the trapping member, toward the distal end of the scraping member.

A foreign substance collection apparatus includes: a frame body; a photosensitive drum; a cleaning roller which collects foreign substances from a surface of the photosensitive drum; a collecting roller which further collects the foreign substances having been collected by the cleaning roller from the cleaning roller; and a scraping member which scrapes off the foreign substances from the collecting roller. A foreign substance collecting portion included in the frame body has, in a posture during use: a first inner bottom surface which is positioned below the scraping member in a gravity direction; an outer bottom surface which is positioned further below the first inner bottom surface; and a connecting surface which intersects the first inner bottom surface and the outer bottom surface and which connects the first inner bottom surface and the outer bottom surface with each other.