Canon Kabushiki Kaisha

Takahiro Ikeda

Masaaki Sato

Tatsuya Suzuki

Shuichi Tetsuno

Yuta Isobe

Shinji Katagiri

Tsuguhiro Yoshida

Takayuki Tanaka

Shunsuke Mizukoshi

Takashi Kase

Kouki Yano

Yusuke Usui

Shinjiro Toba

Yosuke Kashiide

Yuji Kawaguchi

Jun Miura

Kohei Matsuda

Satoshi Nishiya

Takaaki Shinkawa

Masaru Shimura

Eiichi Hamana

Takumi Furukawa

Norihito Naito

Tomonori Matsunaga

Satoru Motohashi

Masahito Kato

Ryosuke Kanai

A driving control apparatus controls an actuator that relatively moves a vibrator and a contact body contacting the vibrator, the vibrator being made to generate vibration by applying a first signal and a second signal having a phase difference. The driving control apparatus includes at least one processor or circuit configured to execute a plurality of tasks including a first determining task configured to determine the phase difference, and a second determining task configured to determine a voltage amplitude of power supplied to the actuator so that the voltage amplitude decreases as an absolute value of the phase difference decreases.

Driving control apparatus, driving control system, lens apparatus, driving control method, and memory medium

An electronic apparatus of the present invention includes: an acquisition unit configured to acquire an image captured on any one of a plurality of conditions in a predetermined period; a display control unit configured to implement control so that a plurality of images acquired by the acquisition unit are classified into groups correspondingly to the plurality of conditions and displayed; and a selection unit configured to implement control so that an operation target image is selected in accordance with user operation from the plurality of images that are classified and displayed by the display control unit.

Electronic apparatus and control method for electronic apparatus

An intermediate transfer belt includes a base layer that has ionic conductivity and is a thickest layer out of multiple layers making up the intermediate transfer belt with respect to the thickness direction of the intermediate transfer belt, and an inner layer having electronic conductivity and a lower electrical resistance than the base layer.

Imaging forming apparatus with enhanced primary transferability where primary transfer is performed with electric current flowing in circumferential direction of intermediate transfer belt

An intermediate transfer belt includes at least two layers which are a base layer and an inner surface layer having electric resistance lower than electric resistance of the base layer, and an end portion of the inner surface layer is positioned on an outside of an end portion of a development opening portion in a width direction as a direction orthogonal to a circumferential direction of the intermediate transfer belt.

Image forming apparatus

An image forming apparatus includes a detection unit (control unit) configured to detect operation information of the image forming apparatus and a controller (control unit) configured to apply an AC voltage to a charging roller by a charging power source during a non-image-forming operation of the image forming apparatus. The controller is configured to control the duration for which the AC voltage is applied on the basis of the operation information detected by the detection unit.

Image forming apparatus for removing adhered matter from a charging unit

A charged positive toner having a positive polarity that attaches to a charge roller is moved from the charge roller to a photosensitive drum, and the positive toner is transferred to an intermediate transfer belt at a primary transfer portion at which a primary-transfer power supply forms an electric potential having a negative polarity. The primary-transfer power supply forms an electric potential having the positive polarity at the primary transfer portion, and the positive toner transferred to the intermediate transfer belt is moved together with the intermediate transfer belt and is collected by the charge roller in contact with a downstream photosensitive drum.

A charge roller includes, in a surface thereof, recesses that have sizes that are equivalent to or larger than a volume average particle diameter of a toner accommodated in a developing unit and that are capable of collecting the toner retransferred to a photosensitive drum.

In a case where a collection mode in which an exposure unit forms a first potential on a photosensitive member and a developing unit collects discharging toner discharged from the developing unit to a position where the first potential is formed is executed, a potential forming unit forms, on an intermediate transfer member, a potential same as a normal charging polarity of toner and an absolute value greater than an absolute value of the first potential, and a charging power supply applies, to a charging member, a voltage having a polarity same as the normal charging polarity and an absolute value greater than an absolute value of the first potential.

Image forming apparatus that prevents toner charged with polarity opposite normal charging polarity from being collected

An image forming apparatus operable in a mode of forming an image using only a part of image forming stations. In the mode, a developing device contacts an image bearing member in a part of the image forming stations, and the developing device is spaced from the image bearing member in the rest of the image forming stations. The contact pressure between the image bearing member and a transferring device is made smaller in the rest than in the part. The image forming operation in the mode is executed while the image bearing members of the part and the rest are rotated. A controller is configured such that when the operation in the mode is continuously executed for a time period longer than a predetermined period, the contact pressure in the rest is made larger than the above-mentioned smaller contact pressure.

An exposing unit forms a latent-image electric potential on each photosensitive drum. A detecting toner image of each color is transferred to an intermediate transfer belt using a first potential difference between a latent-image electric potential and the potential of an intermediate transfer belt at each primary transfer portion. When the polarity of voltage to be applied from a transfer power source to a secondary transfer roller is to be switched to an opposite polarity while the detecting toner image of each color is passing through each primary transfer portion, the absolute value of a second potential difference between the potential of the intermediate transfer belt and the background electrical potential of each photosensitive drum is made equal to or greater than the absolute value of the first potential difference by a control unit.

Image forming apparatus where primary transfer is performed with electric current flowing in circumferential direction of intermediate transfer belt

Provided is a remanufacturing method of a developer accommodating unit including a flexible container provided with an opening and configured to accommodate developer, and a frame member configured to accommodate the flexible container. The remanufacturing method includes refilling the developer into the flexible container.

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Oyama, Japan

Takahiro Ikeda