Canon Kabushiki Kaisha

Daisuke Takamura

Jun Agata

Tomooku Koyama

Wataru Uchida

Yohei Suzuki

Ken Murooka

Yoshihiro Ito

Akira Yoshimura

Masatoshi Yamashita

Yasuhiko Fuse

Taisuke Minagawa

Masatoshi Yoshida

Fumihiko Yamaya

Yoshiyuki Maekawa

An image forming apparatus includes: a fixing portion for fixing an image formed on a recording material; and a guide member for guiding the recording material. The guide member is provided at an entrance to the fixing portion and at an end portion with respect to a direction perpendicular to a feeding direction of the recording material The guide member is moved when the guide member is pushed by the recording material.

Image forming apparatus

An image forming apparatus includes a fixing portion for fixing an image formed on a recording material, and a guide member for guiding the recording material, wherein the guide member is provided at an entrance to the fixing portion and at an end portion with respect to a direction perpendicular to a feeding direction of the recording material. The fixing portion includes a cylindrical belt and a roller contacting an outer surface of the belt for forming a fixing nip through which the recording material is to be passed, wherein the roller has a shape such that a diameter thereof is increased with a distance thereof toward the end portion with respect to the direction perpendicular to the feeding direction, and the guide member is moved when the guide member is pushed by the recording material.

It is desired to reduce deformation of reflecting surfaces of a rotatable polygon mirror that is formed by using resin molding. The rotatable polygon mirror that is formed by resin molding is provided with recesses.

Light deflector, optical scanning device, and image forming apparatus

An image forming apparatus includes: a fixing portion for fixing an image formed on a recording material; and a guide member for guiding the recording material. The guide member is provided at an entrance to the fixing portion and at an end portion with respect to a direction perpendicular to a feeding direction of the recording material. The guide member is moved when the guide member is pushed by the recording material.

Image forming apparatus with guide member movable with repect to direction perpendiclar to recording material surface

Image forming apparatus with plurality of ribs on guide to fixing nip

In a scanning optical apparatus provided with: a deflector including a rotating polygon mirror which deflects incident light; and an optical box which fixes the deflectors in a positioned state, the deflector uses any one of deflectors of a plurality of types having respectively different shapes of a fitting portion, which is fitted into a fit receiving portion provided in the optical box, and the optical box is provided with fit receiving portions of different shapes corresponding to the respective fitting portions of the deflectors of a plurality of types.

Scanning optical apparatus

An image forming apparatus has an image forming portion, a fixing portion for fixing the unfixed image at a fixing nip, a first and second guide members configured to guide the recording material to the fixing nip. The first guide member is provided at a position opposed to a surface of the recording material on which the unfixed image is formed and at a center of the fixing portion with respect to a longitudinal direction of the fixing portion, and the second guide member is provided at a position opposed to the surface of the recording material on which the unfixed image is formed and at an end of the fixing portion with respect to the longitudinal direction of the fixing portion, the second guide member being movable relative to the first guide member with respect to a direction perpendicular to a feeding direction of the recoding material.

Image forming apparatus with lower and upper guide members

An image forming apparatus includes: a transfer portion for transferring an image onto a sheet at a transfer nip; a fixing portion for fixing the image on the sheet at a fixing nip; a sheet feeding guide, provided between the transfer portion and the fixing portion, having a sheet guide surface; a sheet detecting portion provided between the transfer portion and the fixing portion; and a controller for controlling a sheet feeding speed of at least one of the transfer portion and the fixing portion depending on an output of the sheet detecting portion so that a feeding attitude of the sheet sandwiched at both of the transfer nip and the fixing nip is maintained in a predetermined feeding attitude. The sheet guide surface of the sheet feeding guide has a most recessed region in a region between the transfer portion and the sheet detecting portion.

An image forming apparatus includes a drive source configured to drive a member for forming an image on a recording material, a frame of the image forming apparatus including a planar portion on which the drive source is mounted, wherein a plurality of through holes is formed on the entire planar portion of the frame, and a sheet member configured to cover at least a portion of the plurality of through holes.

Image forming apparatus having a member for forming an image

An electrophotographic image forming apparatus includes a main assembly and a cartridge including a process device actable on an electrophotographic photosensitive member. The process cartridge is detachably mountable relative to the main assembly, with the cartridge including a first unit and a second unit pivotably connected with the first unit. An opening is provided in the main assembly of the apparatus for permitting mounting and demounting of the cartridge. An openable member is provided in the main assembly of the apparatus for openably closing the opening. An exposure device is provided on the openable member for exposing the electrophotographic photosensitive member. A first positioning portion is provided in the main assembly. The exposure device is provided with a second positioning portion for positioning between the exposure device and the second unit of the cartridge by engagement with the cartridge by closing the openable member.

Electrophotographic image forming apparatus

An image forming apparatus includes a cover member which is openable and closable with respect to main assembly of the image forming apparatus; and an image reading portion, movable to first and second positions, for reading an image of an original. The cover member is movable to first and second open positions with respect to the main assembly. The image reading portion is initially rested at the first position as the cover member is moved from a closed position to the first open positions, and then is movable from the first position to the second position in interrelation with movement of the cover member from the first open position toward the second open position.

A color image forming apparatus to which cartridges are detachably mountable includes a cartridge supporting member movable between a set position and an outside position; a driving source; a driving member provided opposite to the driving source through the cartridge supporting member, a first driving force transmission member for transmitting a driving force of the driving source; a second driving force transmission member provided oppositely to the first driving force transmission member through the cartridge supporting member; and a third driving force transmission member provided to the cartridge supporting member. The third driving force transmission member is, in a state in which the cartridge supporting member is located at the set position, connected to the first and second driving force transmission members to transmit the driving force of the driving source to the driving member.

Growing community of inventors

Fujinomiya, Japan

Daisuke Takamura