Canon Kabushiki Kaisha

Kenichi Tagami

Tomio Noguchi

Masafumi Maeda

Noriyuki Ito

Yusuke Nakashima

Shinji Kubo

Kenji Matsuzaka

Keisuke Fujita

Ryosuke Oda

A sheet discharging apparatus includes a discharging portion, a stacking portion, a moving member configured to move to a first position, a second position, and a third position, a detection portion, and a control portion. In a case where the detection portion detects that the moving member has reached the second position, the control portion controls the discharging portion in a first mode or a second mode. In the second mode, the control portion restricts the discharge of a sheet after a predetermined number of sheets has been discharged to the stacking portion. The control portion is configured to determine the predetermined number of sheets, depending on a type of the sheet discharged by the discharging portion, a length of the sheet in a sheet conveyance direction, and temperature and/or humidity.

Sheet discharging apparatus and image forming apparatus

A fixing apparatus includes a first rotary member, a nip forming member, a second rotary member, a heating element, a temperature detection element, a holder configured to hold the temperature detection element, and an urging member configured to urge the holder toward the nip forming member to bring the holder into contact with the nip forming member. The holder includes a base member configured to receive an urging force from the urging member, and a head member to which the temperature detection element is attached, the head member being configured to be in contact with the base member and tiltable with respect to the base member. The head member is configured to be urged toward the nip forming member by the urging force and to tilt following a portion of the nip forming member opposing the head member.

Temperature detection apparatus having a base member that moves in a thickness direction of a heater, fixing apparatus, and image forming apparatus

A fixing apparatus includes a heater including a heating member, a heater holder configured to hold the heater, a detection element configured to detect a temperature of the heater and disposed at a position that faces the heater in a third direction, a first holding member configured to hold the detection element, an urging member configured to urge the first holding member, a flexible member extending in the first direction and configured to support the first holding member on a first end portion of the flexible member in the first direction, and a second holding member configured to hold a second end portion of the flexible member in the first direction. The flexible member is flexible such that the first holding member and the second holding member are movable relative to each other in the third direction.

Temperature detection device, fixing apparatus, and image forming apparatus

An image forming apparatus includes a storage container in which toner is stored, a replenishment port configured to allow replenishment of toner from the replenishment container outside the image forming apparatus to the storage container therethrough, a replenishment restriction portion, a drive source configured to supply a driving force, and a drive transmission portion configured to take a first operation state, in which the drive transmission portion transmits the driving force of the drive source to the replenishment restriction portion to switch the replenishment restriction portion between a restricting state and an allowing state, and a second operation state, in which the drive transmission portion transmits the driving force of the drive source to a toner conveyance portion to cause the toner conveyance portion to convey toner.

Image forming apparatus having a mechanism to restrict or allow toner replenishment

An image forming apparatus includes a storage container in which toner is stored, a replenishment port configured to allow replenishment of toner from a replenishment container outside the image forming apparatus to the storage container therethrough, a replenishment restriction portion, and a drive source configured to supply a driving force A drive transmission portion is configured to take a first operation state, in which the drive transmission portion transmits the driving force of the drive source to the replenishment restriction portion to switch the replenishment restriction portion between a restricting state and an allowing state, and a second operation state, in which the drive transmission portion transmits the driving force of the drive source to a toner conveyance portion to cause the toner conveyance portion to convey toner.

Image forming apparatus having a detachable toner replenishment container

An image forming apparatus includes a contact-separation mechanism that causes a photosensitive drum and a developer-bearing member to come into contact with each other or to separate from each other and a restricting member that restricts movement of a cartridge with the cartridge installed in a main body of the image forming apparatus. In the image forming apparatus, the contact-separation mechanism causes the photosensitive drum and the developer-bearing member to separate from each other while the restricting member restricts the movement of the cartridge with the cartridge installed in the main body. The restriction of the movement of the cartridge by the restricting member is released in conjunction with operation of bringing the photosensitive drum and the developer-bearing member into contact with each other by the contact-separation mechanism.

Image forming apparatus with restricting member that restricts movement of cartridge

A fixing apparatus fixes an image formed on a recording material and includes a guiding member for guiding movement of the recording material, provided in a recording material passing opening of the apparatus, a rib projecting from a recording-material passing surface of the guiding member, for being contacted by the recording material, a shutter provided at a position opposing the guiding member and movable between a position for opening the passing opening and a position closing the passing opening, and a projection provided at a position of the shutter opposing a portion of the guiding member not having the rib with respect to a direction perpendicular to a recording material feeding direction. When the shutter takes the closing position, the clearance between the rib and the shutter is larger than the clearance between the guiding member and the projection.

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Tokyo, Japan

Kenichi Tagami