Canon Kabushiki Kaisha

Olympus Corporation

Olympus Medical Systems Corporation

Saraya Co., Ltd.

Ryo Inoue

Kenichiro Waki

Hiroyuki Suzuki

Masahiro Itoh

Ryo Nakamura

Yasunori Chigono

Masahiro Inoue

Yoshiyuki Sato

Manami Haraguchi

Yoshihiro Shigemura

Takeo Yamamoto

Tomoaki Miyazawa

Yuri Mori

Mitsuhiro Ota

Hirokazu Usami

Takayoshi Iwanami

Kojiro Kotani

Shintaro Ishida

Emi Hagiwara

Atsushi Kinoshima

Suguru Nishio

An endoscope reprocessor includes: a medicinal solution storage portion configured to store a medicinal solution; a sampling tube including a first end portion opened inside the medicinal solution storage portion, and a second end portion opened outside the medicinal solution storage portion; a first chamber, inside which the second end portion of the sampling tube is opened; a second chamber where an opening portion and a communication port communicated with the first chamber are formed; a constricted portion configured to connect the first chamber and the communication port; a first advancing/retreating portion configured to advance and retreat between a first position to block the constricted portion and a second position to open the constricted portion inside the first chamber.

Endoscope reprocessor

A toner containing toner base particles and an external additive, wherein regions with different tribocharging polarities with respect to a magnetic carrier are present in a domain-matrix structure on the surface of the toner base particles. The island region B has a predetermined height, the external additive has a reverse polarity to the region B in terms of tribocharging polarity to the magnetic carrier, the external additive contains a first external additive having a number-average primary particle size of 80-150 nm and a second external additive having a number-average primary particle size of 10-60 nm, and an average coverage Cb (%) with the first external additive in the region B is 27-100% and a coverage Ca (%) with the first external additive in the sea region A is 12% or less.

Toner and method for producing the same, and two-component type developer

An image forming apparatus includes movable first and second image bearing members, latent image forming units that form electrostatic latent images and latent index patterns, a movable belt member contacting the image bearing members, toner image transfer members that transfer toner images, obtained by depositing toner on the latent images, onto the belt member, latent pattern detectors that detect the latent index patterns, an adjusting portion that adjusts relative positions between the latent index patterns on the basis of detection results of the detectors, and a setting portion that sets a latent pattern transfer voltage, during image formation, on the basis of a detection result of one of the latent pattern detectors on condition that a plurality of test voltages are applied to one of the latent pattern transfer member during non-image formation.

Electrostatic image forming apparatus utilizing index patterns for toner image alignment

A fluid container unit including: a container coupling for coupling a supply/discharge port of a first container with a supply/discharge port of a second container; a single nozzle member having a nozzle tube; a connection cap having a first end for holding a base portion of the nozzle member and a second end for covering one side of the container coupling by fitting around an outer periphery thereof; an intermediate adaptor having a pair of pusher elements facing the first and the second supply/discharge ports, respectively; and a supply/discharge port opening mechanism for moving the intermediate adaptor toward the container coupling and opening the supply/discharge ports by the pusher elements. The pusher elements are movably held in a direction along a longitudinal axis of the nozzle tube in the connection cap.

Fluid container unit and method for injecting different kinds of fluids into fluid usage equipment

A developing device includes a developer carrying member; a first feeding path in which a developer is to be supplied and fed to the developer carrying member at a position in which the first feeding path opposes the developer carrying member; a second feeding path, communicating with the first feeding path, for forming a circulation path with the first feeding path; a discharge opening for permitting discharge of an excessive developer in the developing device; a first supply opening, located downstream of the first feeding path opposing the developer carrying member with respect to a developer feeding direction and located upstream of the discharge opening with respect to the developer feeding direction, for permitting supply of a first developer containing at least toner; and a second supply opening, located upstream of the first feeding path with respect to the developer feeding direction and located downstream of the discharge opening with respect to the developer feeding direction, for permitting supply of a second developer which has a toner ratio lower than that of the first developer or is consisting only of a carrier.

Image forming apparatus featuring supply of developers having different toner ratios

A charging apparatus includes a corona charger which includes a discharging wire and a grid electrode that are configured to charge a member to be charged, a cleaning device configured to clean an inner surface of the grid electrode, and a discharging device configured to electrically discharge the grid electrode before the cleaning device cleans the grid electrode.

Charging apparatus having cleaning device

An image forming apparatus which can perform a multiple exposure with a plurality of laser lights driven by the PWM signal without deteriorating the image quality of a line image and a character image. Scanning start points are controlled to be different between a first light beam and a second light beam, among a plurality of light beams emit from a light source, exposing the identical pixel position.

Image forming apparatus

An image forming apparatus includes a movable image bearing member; charging means for electrically charging the image bearing member; voltage applying means for applying to the charging means an oscillating voltage including an oscillating component and a constant component in one cycle; discharging means for selectively discharging an electrically charged surface of the image bearing member to form an electrostatic latent image; and changing means for changing an application time of the constant component during the one cycle depending on a spatial frequency, with respect to a movement direction of the image bearing member, of the electrostatic latent image to be formed.

Image forming apparatus with a control unit that controls a charging bias voltage

An image forming apparatus includes an image bearing member, and first and second chargers. Each of the chargers includes a magnetic member for generating magnetism, has a holding member for holding magnetic particles by a magnetic force, and charges the image bearing member by bringing the magnetic particles in contact therewith. The magnetic member of each of the chargers has a magnetic pole facing the image bearing member. The second charger is located at the tail end in the image bearing member rotational direction, but before a position at which an image is formed on the image bearing member. In the image bearing member rotation direction, and relative to a position at which the image bearing member comes closest to the holding member, the first charger's magnetic member has a peak magnetic force positioned downstream, and the second charger's magnetic member has a peak magnetic force positioned upstream.

Image forming apparatus and charging unit therefor

According to the present invention, in an image-forming apparatus having at least two chargers for charging a rotating image carrier, in accordance with change in bias applied to a second charger disposed on the downstream side in a rotational direction of the image carrier, the bias applied to a first charger disposed on the upstream side is changed. Thereby, the electric power required for the charging is reduced.

Image-forming apparatus including first and second charging members with a target potential charging feature

A charging apparatus includes plural charging devices including a first charging device and a second charging device, in which an absolute value of a current flowing from the second charging device to a member to be charged is 25% or less of an absolute value of a sum of currents respectively flowing from the plural charging devices to the member to be charged, thereby achieving uniform charging of the member to be charged.

Charging apparatus with plural charging means

To provide a charging apparatus including: a first charging unit for charging a body to be charged, the first charging unit including a magnetic brush that contacts the body to be charged; and a second charging unit that is provided on a downstream side of the first charging unit with respect to a moving direction of the body to be charged, the second charging unit including a magnetic brush that contacts the body to be charged, in which a contact width, with which the magnetic brush of the first charging unit contacts the body to be charged, is wider than a contact width with which the magnetic brush of the second charging unit contacts the body to be charged.

Charging apparatus and image forming apparatus

An image forming apparatus includes an image bearing member, a charging member, disposed so as to be contactable with the image bearing member, for charging the image bearing member with a peripheral velocity difference between the charging member and the image bearing member, and a controller for variably controlling the peripheral velocity difference at the time when an area which becomes an image forming area of the image bearing member is charged by the charge member.

Image forming apparatus including an image bearing member and a charging member featuring a controlled peripheral velocity difference therebetween during charging

An image forming apparatus capable of making potential control executable immediately after starting copying and shortening a first copying time includes a photosensitive drum ( ), a charging magnetic brush charger ( ) for charging the photosensitive drum ( ) and a main electricity eliminating light irradiating apparatus ( ) for irradiating light to eliminate a light memory in the photosensitive drum . The main electricity eliminating light irradiating apparatus ( ) irradiates the photosensitive drum ( ) with an exposure amount larger than a minimum exposure amount for eliminating a light memory in at least a part of an irradiation process.

An image forming apparatus includes a charging device applies a voltage to charge an image bearing member. The charging device is provided with a charging means to which a voltage is applicable to charge said image bearing member, said charging means being provided with a magnetic particle carrying member for carrying and conveying a magnetic particle layer contacting with said image bearing member during the charging operation; a container contains magnetic particles therein; and a replacing device replaces the magnetic particles carried on the magnetic particle carrying member with the magnetic particles contained in the container. A developer develops a latent image produced on the image bearing member by the charging device using a toner to produce a toner image. A transferring device transfers the toner image from the image bearing member simultaneously with developing of the latent image without using a cleaner member after transferring by said transferring device and before charging by said charging device.

Growing community of inventors

Kawasaki, Japan

Ryo Inoue