Image forming apparatus

Image forming apparatus, cartridge and image forming apparatus system

Process cartridge and image forming apparatus

Rotational force transmitting part

Image forming apparatus with movable cartridge pressing member

Image forming apparatus

Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit

Magnetic Interlock for a Replaceable Unit of an Image Forming Device

IMAGE FORMING APPARATUS

Image forming apparatus having support frame from which cartridges are detachable

Process cartridge having force receiving portion and image forming apparatus including process cartridge

Image forming apparatus an opening/closing member, a cartridge support member, and a lock that is released when cartridge support member moves to an outer position

Charging member, process cartridge and electrophotographic apparatus

Image forming apparatus

Image forming device having holder unit that holds developing units and spacer member to maintain developing units at particular position

Member mounting structure and image forming apparatus

Cartridge, and electrophotographic image forming apparatus which uses cartridge

Image forming apparatus including a casing and a process cartridge detachably attachable to the casing

Image forming device facilitating removal of jammed sheet

Image forming apparatus with pressing portion and guide

Process cartridge, developing device and image forming apparatus

Image forming apparatus

Image forming device, process cartridge engaged with the same and method for firmly positioning process cartridge in image forming device

Process cartridge and image forming apparatus

Image forming apparatus

Image forming apparatus

Configuration of an image forming device for accessing an image forming unit

Image forming apparatus

Electrophotographic image forming apparatus and supporting member

Image forming apparatus and photosensitive unit

Image forming apparatus

Image forming apparatus having paper dust cleaning unit movably provided on photosensitive member unit

Rotational force transmitting part

Image forming apparatus

Process cartridge electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit

Photosensitive member cartridge and process cartridge provided with positioning shaft for improved positioning accuracy

Image forming apparatus including guide grooves and a photoreceptor cartridge including guide axles

Electrophotographic image forming apparatus

Process cartridge and image forming apparatus

Image forming apparatus having support frame from which cartridges are detachable

Image forming device having holder positioning arrangement

Tandem photosensitive-member unit having grip part

Image forming apparatus having photosensitive drum moving mechanism

Color electrophotographic image forming apparatus having a cartridge supporting member

Electrophotographic image forming apparatus

Image forming apparatus with removable cartridge supporting member

Electrophotographic image forming apparatus

Image forming apparatus having mechanism for allowing photosensitive drum and developing roller to contact during insertion of cartridge-mounted drawer

Image forming apparatus with cartridge supporting member and members for preventing movement of cartridge supporting member

Image forming apparatus with cartridge supporting member and preventing member for preventing movement of cartridge supporting member

Image-forming apparatus

Image forming device provided with side walls having empty region

Image forming apparatus and cartridge

Process cartridge, photosensitive drum unit, developing unit and electrophotographic image forming apparatus

Image forming apparatus

Image forming apparatus having detachably mounted process cartridge and fixed exposure device

Image forming apparatus

Image forming apparatus

Image forming apparatus

Process cartridge having a drum cartridge and a developing cartridge configured to be movably attached to the drum cartridge

Image forming device

Image forming device

Image forming apparatus with movable member for supporting cartridges

Electro-photographic type image forming device and photosensitive unit provided in the same

Electrophotographic image forming apparatus having rotation-regulated process cartridge

Packaging arrangement for image formation apparatus accommodating process cartridge

Packaging arrangement for image formation apparatus accommodating process cartridge

Image forming apparatus

Image forming apparatus

Image forming apparatus

Image forming apparatus

Electrophotographic image forming apparatus with movable tray for mounting cartridges

Developing cartridge and image forming apparatus having the same

Process cartridge including a photosensitive drum for an electrophotographic image forming apparatus

Electrophotographic image forming apparatus

Image forming apparatus have a cover and a pressing mechanism for pressing a developing cartridge when closing the cover

Image forming apparatus

DEVELOPING CARTRIDGE AND IMAGE FORMING APPARATUS HAVING THE SAME

Electrophotographic image forming apparatus, process cartridge and developing cartridge

Image forming device with drawer

Image forming apparatus having a holding member for holding a cartridge

Image forming device having retaining member retaining toner cartridges

Process cartridge and image forming apparatus

Tandem photosensitive-member unit having grip part

Electrophotographic color image forming apparatus and cartridge

Image forming apparatus

Image forming apparatus

Color electrophotographic image forming apparatus

Color electrophotographic image forming apparatus

Color electrophotographic image forming apparatus having a cartridge supporting member

Image forming apparatus having a plurality of cartridges and a single writing unit

Image forming device having spacer member for retaining developing roller at position spaced away from corresponding photosensitive drum

Image forming device having holder unit with side plates between which photosenstive drums and toner cases are positioned

Image forming device having cleaning member for cleaning belt

Image forming device having regulating member configured to prohibit movement of photosensitive body in lock state

Color electrophotographic image forming apparatus

Image forming device with holding unit engagement mechanism

Image forming device having process unit that can be pulled out thereof

Image forming device including process unit provided with handle

Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus

Photosensitive member cartridge

IMAGE FORMING DEVICE HAVING RETAINING MEMBER THAT CAN BE PULLED OUT THEREFROM

Apparatus transportable in a cartridge-mounted state for electrophotography image forming

Image forming apparatus having member for moving developer carrier in and out of contact with photosensitive element included in drum unit

Electrophotographic image forming apparatus with removed-developer accommodating chamber for receiving developer cleaned from electrophotographic photosensitive drums

Electrophotographic color image forming apparatus

Process cartridge and image forming apparatus

Process cartridge and electrophotographic image forming apparatus

Tandem photosensitive-member unit having grip part

Image forming apparatus having process cartridge guide portions

Process cartridge and electrophotographic image forming apparatus

Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit

Image forming apparatus having a removable photosensitive member unit

CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS WHICH USES CARTRIDGE

Image forming apparatus with movable cartridge supporting member

Image forming apparatus, image forming method, and supporting mechanism

Image forming apparatus having a main assembly, a cartridge detachably mountable to the main assembly, and a fixing unit detachably mountable to the main assembly

Image forming apparatus

Developing cartridge, process cartridge, and electrophotographic image forming apparatus

Image forming device and detachably loaded process unit

Photosensitive member cartridge

Image forming apparatus

Image forming apparatus including detachable supporting member

Tandem photosensitive-member unit for image-forming device

Color electrophotographic image forming apparatus with member supporting a plurality of cartridges

Color electrophotographic image forming apparatus

Electrophotographic image forming apparatus

Electrophotographic image forming apparatus

Color electrophotographic image forming apparatus

Color electrophotographic image forming apparatus

Color electrophotographic image forming apparatus

Developing cartridge, process cartridge, and electrophotographic image forming apparatus

Image forming apparatus and image forming structure

Image forming device with holding unit engagement mechanism

Electrophotographic image forming apparatus having removable cartridge with coupling member

Electrophotographic image forming apparatus

Tandem photosensitive-member unit having grip part

Color electrophotographic image forming apparatus

Process cartridge and developing cartridge

Tandem photosensitive-member unit having grip part

Photosensitive unit and image forming apparatus

Image forming apparatus and photosensitive unit

Image forming device, image forming method and storage medium

Electrophotographic image forming apparatus and supporting member

Color electrophotographic image forming apparatus having movable cartridge supporting member

Image forming apparatus

Image forming apparatus

Image forming apparatus

Electrophotographic image forming apparatus and cartridge support member

Electrophotographic image forming apparatus

Electrophotographic image forming apparatus

Color electrophotographic image forming apparatus

Electrophotographic image forming apparatus

Color electrophotographic image forming apparatus having a cartridge supporting member

Electrophotographic image forming apparatus

Electrophotographic image forming apparatus with openings for cartridge insertion and removal

Developing cartridge that includes member to be pressed by image-bearing-member cartridge

Image forming apparatus

Image-forming device having detachable process cartridge

Image forming apparatus having a removable photosensitive member unit

Image forming apparatus and process cartridge

Drum cartridge including detachable spacer member and electrophotographic image forming apparatus

Image forming cartridge mounting structure for image forming apparatus

Process cartridge and electrophotographic image forming apparatus

Image forming apparatus including frame structure for supporting image forming unit

Process cartridge, electrophotographic image forming apparatus and electrographic photosensitive drum unit

Process cartridge and electrophotographic photosensitive drum unit

Image forming device having a structure capable of facilitating positioning of an image forming unit provided in the image forming device

Image forming device

Image forming apparatus with structure for suppressing rising of developer agitating roller at start of rotation

Process cartridge and electrophotographic image forming apparatus

Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus

Tandem type photosensitive unit and image forming apparatus

Tandem type photosensitive unit and image forming apparatus

Image forming apparatus having a translation member for separating a photosensitive member from a developing member

Image forming apparatus

Process cartridge and image forming apparatus

Image forming apparatus and process cartridge

Image forming apparatus having an intermediate transfer belt disposed above a plurality of photoconductors

Recording medium conveying device, image forming apparatus and cartridge

Image forming apparatus with detachable cartridge

Image-forming device with scanner unit

Image forming apparatus having a process cartridge removable from a main body of the apparatus having improved usability

Image forming apparatus having lowered image forming position and recessed sheet stacking portion

Photosensitive member cartridge

Electrophotographic image forming apparatus and process cartridge

Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus

Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus

Developing device removably mountable in an image forming apparatus, and image forming apparatus having the same

Image forming apparatus having a plurality of photoconductive elements, a plurality of optical writing devices and a stay

Image forming apparatus and process cartridge

Electrophotographic image forming apparatus

Image forming apparatus

Image forming apparatus having a driving gear unit and a support guide

Tandem photosensitive-member unit having grip part

Image forming apparatus including a mechanism for reliably mounting a process unit

Electrophotographic image forming apparatus with movable tray for supporting a cartridge

Cartridge and electrophotographic image forming apparatus

Rotational force transmitting parts

Image forming apparatus with cartridge loading device

Image forming device and detachably loaded process unit

Photosensitive medium supporting apparatus, developing cartridge and image forming apparatus having the same and method to assemble and disassemble a developing cartridge

Image formation apparatus and photoreceptor cartridge

Developing cartridge, image forming apparatus, and method of mounting/separating developing cartridge on/from image forming apparatus

Developing device and image forming apparatus

Process cartridge and image forming apparatus

Image forming apparatus having lowered image forming position and recessed sheet stacking portion

Process cartridge having a drum, a developing roller, and first and second frames, and electrophotographic image forming apparatus on which such process cartridge is mountable

Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit

Image forming device

Cartridge and electrophotographic image forming apparatus

Image forming apparatus having a locking member locking an image forming unit attached thereto

IMAGE FORMING APPARATUS AND METHOD THEREOF

Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus

Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus

Image forming apparatus including a plurality of image forming units disposed so as to be removable without damaging an intermediate transferring member

Image formation apparatus and photoreceptor cartridge

Image forming apparatus with a plurality of drum cartridges and a plurality of developer cartridges

Photosensitive unit and developer cartridge

Photosensitive unit and image forming apparatus

Variable force biasing mechanism and electrical connection

Image forming apparatus in which developing unit is easily detachable to photosensitive member unit

Image forming apparatus having a removable photosensitive member unit

Image forming apparatus

Image formation apparatus with positioning section that positions exposure device

Electrophotographic image forming apparatus having a drawing member positionable at mount and drawn positions for mounting plural process cartridges

Electrophotographic image forming apparatus including a tray for carrying a process cartridge

Electrophotographic image forming apparatus with image bearing member contacting and being spaced from transfer member transferring a toner image from the member thereonto

Image carrier toner unit and image forming apparatus

Image forming apparatus with frontal discharge of print medium

Image forming device

Image forming apparatus, image forming method, and supporting mechanism

Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus

Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus

Image forming apparatus, process unit and developing cartridge

Pressing mechanism for a developing cartridge

Cartridge, image forming apparatus, and method for mounting and dismounting the cartridge in and from a main body of the image forming apparatus

Image forming apparatus and image transferring unit for use in the same

Image forming apparatus with image forming cartridges arranged one above another

Tandem photosensitive-member unit for image-forming device

Tandem photosensitive-member unit having grip part

Image forming apparatus

Image forming device and detachably loaded process unit

Image forming method and apparatus for effectively positioning an image forming member

Structure for installing developing unit and electrophotographic image forming apparatus with the same

Process cartridge and electrophotographic image forming apparatus

Process cartridge receiving from an image forming apparatus into which it is mounted a downstream-moving force during mounting and such image forming apparatus

Image forming device with holding unit engagement mechanism

Image-forming apparatus including a cartridge loading section in communication with a cartridge opening

Tandem type image-forming apparatus

Variable force biasing mechanism and electrical connection

Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus

Recording medium conveying device, image forming apparatus and cartridge

Image formation apparatus and photoreceptor cartridge

Process cartridge and electrophotographic image forming apparatus

Image forming method and apparatus including dismountable cartridges

Electrophotographic image forming apparatus

Tandem type color image forming device having a plurality of process cartridges arrayed in running direction of intermediate image transfer member

Image forming apparatus

Process cartridge and electrophotographic image forming apparatus

Image forming apparatus

Image-forming device having cartridge-accommodating section

Image forming apparatus

Image-forming device and angularly shifted belt unit

Image forming apparatus having a securing member to secure an image forming unit to a housing body

Image forming apparatus, drawable cartridge, and recording medium accommodating cartridge

Process cartridge having cartridge electrical contact connected to a cartridge memory element and connectable to a main assembly electrical contact and image forming apparatus to which such cartridge is mountable

Electrophotosensitive drum having non-circular twisted projection with electroconductive member thereon, process cartridge having such drum, and electrophotographic image forming apparatus to which the cartridge is detachably mountable

Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus

Image-forming device with scanner unit

Image forming apparatus comprising a plurality of image forming stations and plurality of developer accommodating vessels

Image forming apparatus and image transferring unit for use in the same

Image forming apparatus whose image bearing member and developing device are provided in a cartridge dismountably mounted to the apparatus

Image forming apparatus and cartridge with holding device

Image forming apparatus

Attaching and detaching a process cartridge of an image forming device

Electrophotographic image forming apparatus

Image forming apparatus having transfer roller guided by guide device fixed on image carrier support structure and process cartridge having the guide device

Image forming apparatus including image transfer belt conveying a recording medium upward

Image forming apparatus and scanning unit

Image forming apparatus and scanning unit

Electrophotographic photosensitive drum, process cartridge, and electrophotographic image forming apparatus

Image forming apparatus having lowered image forming position and recessed sheet stacking portion

Process cartridge and electrographic image forming apparatus

Image forming apparatus and method of mounting and demounting process cartridge

Variable force biasing mechanism and electrical connection

Process cartridge and image forming apparatus

Image forming apparatus

Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus

Image forming apparatus, process cartridge and exposure scanning unit

Process cartridge for image forming apparatus

Process cartridge and electrophotographic image forming apparatus

Electrophotographic image forming apparatus having process cartridge with electrical contacts

Image forming apparatus

Image forming unit and image forming apparatus

Image forming device

Tandem type color image forming device having a plurality of process cartridges arrayed in running direction of intermediate image transfer member

Image-forming device having a removable process cartridge

Toner cartridge having positioning features