Kyocera Document Solutions Patente

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A cleaning apparatus includes a blade, a screw, a toner crushing member, and a casing. The toner crushing member is located in contact with the screw. The toner crushing member is provided in association with the screw and configured to crush toner accumulated between the screw and the blade, by being swung by the screw rotating. The casing houses the screw and the toner crushing member. The screw rotates in the direction reverse to the rotational direction of the photoreceptor drum. The toner crushing member is configured having a first part and a second part, with a base-end side of the first part being secured to the casing, and the second part being folded back along a distal-end side of the first part, such that a distal-end side of the second part swings between the blade and the screw, in association with the rotation of the screw.

A roller support mechanism (80) supports a rotary shaft (72) of a second roller (71) disposed in parallel with a first roller (16B). The roller support mechanism (80) includes a support frame (81), a cover member (82), a bearing member (83), and an urging member (84). The support frame (81) is made of sheet metal and has a support groove (85) extending in a direction away from the first roller (16B) and receiving the rotary shaft (72). The cover member (82) is made of sheet metal and is attached to the support groove (85) to cover a pair of side edge sections (85B) facing each other across the support groove (85). The bearing member (83) is made of resin and has a bearing groove (83A) that rotatably supports the rotary shaft (72). The bearing member (83) is disposed in the support groove (83A), with the cover member (82) interposed therebetween, so as to be movable in a direction toward/away from a bottom (85A) of the support groove (85). The urging member (84) urges the bearing member (83) in a direction away from the bottom (85A) of the support groove (85).

A transfer device (14) includes a plurality of transfer members (24) and a switch section (51). The switch section (51), in a first state, causes the transfer members (24) to be pressed against a plurality of image bearing members (20). The switch section (51), in a second state, causes a transfer member (24Bk) opposed to a first image bearing member (20Bk) to be pressed against the first image bearing member (20Bk), and causes a transfer member (24M-24Y) opposed to a second image bearing member (20M-20Y) to be separated from the second image bearing member (20M-20Y). In the first state, toner images of different colors are transferred from the image bearing members (20) to an intermediate transfer belt (141) and superimposed together. In the second state, a single-color toner image is transferred from the first image bearing member (20Bk) to the intermediate transfer belt (141). The switch section (51) changes a pressing force of the transfer member (24Bk) to the first image bearing member (20Bk) between the first and second states.

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An image forming apparatus includes a housing, a photosensitive drum, a cleaning member, a driving transmission portion, and a movement mechanism. The photosensitive drum is rotatably supported by the housing about a first shaft portion. The driving transmission portion transmits a rotation driving force to the photosensitive drum. The movement mechanism reciprocates the photosensitive drum in an axial direction. The movement mechanism includes a first rotation gear, a second rotation gear, a first intermediate gear, and a second intermediate gear. The first rotation gear integrally rotates with the photosensitive drum. The second rotation gear has teeth different in number from teeth of the first rotation gear and rotates with a predetermined speed difference relative to the first rotation gear. The first and second intermediate gears are a pair of rotation gears rotatable about a second shaft portion parallel to the first shaft portion.

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An image forming apparatus includes an image forming section, a body housing, a protruding housing, a light diffusing portion, a light source, a light guide path, and a control unit. The image forming section performs image formation on a sheet. The body housing is formed by a box body with a top surface, and contains the image forming section. The protruding housing is located on the top surface, and has a top portion protruding upwardly above the top surface. The light diffusing portion is located in or near the top portion of the protruding housing. The light source is located inside the body housing or the protruding housing, and emits light. The light guide path guides light emitted by the light source to the light diffusing portion. The control unit controls illumination of the light source based on the information related to the image formation.

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A fur brush roller (201) electrically absorbs and removes a transferred remaining toner on a surface of an image carrier (121) through bias voltage impression. This fur brush roller (201) includes: a foundation cloth (201A), conductive yarns (201B), and insulation yarns (201C). The insulation yarns (201C) are subjected to crimp-texturizing processing. The conductive yarns (201B) and the insulation yarns (201C) are alternately pile-woven to the foundation cloth (201A).

An event notification system includes a terminal and devices coupled thereto via a network that process jobs provided from the terminal. The device includes a database in which a subscription including an event type and a notification address is registered on the basis of a notification registration request from the terminal. In the device, an event generator generates an event with event data indicating a status change within the device. Given the status change of a job, a value indicating a requestor of the job process is included in the event data. When the event data includes the requester, an event notification manager sends a notification to the notification address in the subscription including the values of the status change and the requester, and sends the notification to the notification address in the subscription including the value of the status change.

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A toner containing a binder resin, a release agent, and pigment fine particles is produced by aggregating fine particles containing the components of the toner to obtain fine particle aggregates and then coalescing the fine particle aggregates. The pigment fine particles have an average primary particle diameter of 50 nm or less, a Cv value of less than 20%, and an average circularity of 0.900 or more.

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