Kyocera Document Solutions Inc.

Hiroaki Watanabe

Masahito Ishino

Satoshi Ishii

Yoshitaka Imanaka

Ryota Okui

Motoki Suzuki

Hiroka Itani

Yoshiyuki Odaka

Keigo Kimura

An image forming apparatus includes a feeder, a conveyance section, an image forming section, a light emitter, a light receiver, a measuring section, and a permeation depth calculator. The feeder feeds a sheet. The conveyance section conveys the sheet. The image forming section forms an image on the sheet conveyed by the conveyance section using an ink. The light emitter emits near-infrared light to the sheet with the image thereon. The light receiver receives reflected light of the near-infrared light. The reflected light has been reflected by the sheet with the image thereon. The measuring section measures a received light quantity of the reflected light. The permeation depth calculator calculates a permeation depth of the ink permeating the sheet based on the received light quantity.

Image forming apparatus

A first light emitter emits light toward a sheet. A first light receiver receives first reflected light from the sheet. A second light emitter is arranged downstream of the first light emitter in a conveyance direction of the sheet and emits light toward the sheet. A second light receiver receives second reflected light from the sheet. A measuring section measures first and second received light quantities of the first reflected light and the second reflected light. A moisture content calculator calculates a change in a moisture content of the ink in the sheet based on a difference between first and second moisture contents. The first moisture content is based on the first received light quantity and the second moisture content is based on the second received light quantity. A curling amount calculator calculates a curling amount of the sheet based on the change in the moisture content.

The image forming apparatus includes an image carrier, a transferring member and a cleaning device. The cleaning device includes a cleaning member, a case and a toner seal. A refresh mode including a first operation and a second operation is executable when an image forming operation is not performed. The first operation is executed such that the image carrier is rotated in a counter direction and for a predetermined distance or longer. The counter direction is a direction opposite to the rotation direction of the image carrier at the image forming operation. The predetermined distance is a distance from a contact position where the cleaning member comes into contact with the surface of the image carrier to a transferring position where the transferring member transfers the toner image. The second operation is executed such that the transferred body is driven and the transferring member is applied with transferring bias.

An image forming apparatus includes a photoreceptor and an exposure device. The exposure device is configured to expose a surface of the photoreceptor and to form an electrostatic latent image. The exposure device includes a light source, a polygon mirror and a polygon motor. The light source is configured to emit a beam. The polygon mirror is configured to deflect the beam emitted from the light source. The polygon motor is configured to rotate the polygon mirror. The polygon motor is rotated at least temporarily when an aging mode to remove moisture from the surface of the photoreceptor is executed.

Exposure devices, static eliminator, and image forming apparatus comprising the same

An image forming apparatus () includes an image bearing member (), a charging section (), a developing section (), and a cleaning member (). The image bearing member () contains filler particles (). The charging section () is either in contact with or positioned close to the image bearing member () and is configured to electrically charge the image bearing member () by generating a proximity discharge between the charging section () and the image bearing member (). The developing section () supplies toner to the circumferential surface of the charged image bearing member (). The cleaning member () has a degree of hardness equal to or higher than 65&#xb0; and a degree of impact resilience equal to or lower than 30%. The cleaning member () is brought into pressure contact with the circumferential surface of the image bearing member () being rotated, by applying linear pressure equal to or higher than 15 gf/cm.

Image forming apparatus, developer used thereby, and image forming method

An image forming apparatus () includes a photosensitive drum (), a cleaning blade (), and a drive mechanism (). The cleaning blade () is in pressed contact with a circumferential surface of the photosensitive drum (). The drive mechanism () causes one of the photosensitive drum () and the cleaning blade () to reciprocate in a rotational axis direction (D) of the photosensitive drum (). The drive mechanism () for example causes the photosensitive drum () to reciprocate in the rotational axis direction (D). The photosensitive drum () includes a photosensitive layer (). An outermost layer of the photosensitive layer () contains a plurality of particles.

Image forming apparatus that causes one of cleaning member and image bearing member including photosenstive layer to reciprocate and image forming method

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Osaka, Japan

Hiroaki Watanabe