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7620346 Electrophotographic image forming device enabling to easily mount belt unit at regular position  
A belt unit is provided with pressure-receiving parts, and a photosensitive unit is provided with pressing parts that applies pressing force to the pressure-receiving parts when the photosensitive...
7619790 Image forming system, image forming apparatus, and control method thereof  
Correction for eliminating deformations of an image to be output from an image apparatus is executed while suppressing the processing load on the host computer side. A host computer acquires...
7616907 Printer cartridge  
A printer cartridge comprising a photosensitive body being in contact with a charging roller and a developing roller, the printer cartridge including a first member interposed between the charging...
7616905 Image forming apparatus, cartridge of image forming apparatus, cartridge mounting method  
A cartridge storing a recording agent includes an opening through which the stored recording agent is discharged, and a cover member closing the opening. Further, a non-contact IC tag that stores...
7613415 Process cartridge with component geometry suitable for recycle of same  
A process cartridge is disclosed which is detachably mounted on an apparatus for forming an image using toner, and which has a process cartridge housing. The process cartridge housing includes: a...
7613414 Developing cartridge, process carriage, and image forming apparatus  
A developing cartridge that includes: a developing roller having a developing roller gear and a driving force transmitting unit; and an electrode member for applying a bias to a developing roller...
7609996 Image forming apparatus having a locking member locking an image forming unit attached thereto  
An image forming apparatus includes an image forming unit which has an image bearing member and which is detachably attachable to the image forming apparatus, a guide section for guiding an...
7609995 Device for helping toner cartridge recharging for printers  
Device for helping toner cartridge recharging for printers is presented. The device includes a supporting cable, perpendicularly engaged to a supporting structure having in one of its ends a...
7603060 Image forming device and power transmission mechanism  
An image forming device includes a device main body, a drum unit, a stud which is fixed to a frame of the device main body, and a drum drive transmitting gear which is supported by the stud such...
7603057 Photosensitive unit and developer cartridge  
A photosensitive unit is described. A photosensitive unit may include a developer cartridge including a developing agent carrier and a casing for supporting the developer carrier; a photosensitive...
7599644 Process cartridge and image forming apparatus that eliminates charge from the surface of a photosensitive member upstream of a sealing member contact portion  
An image forming apparatus suppresses the deposition of transfer-residual toner on a sealing sheet and also suppresses the dropping of deposited toner therefrom, at a high temperature and in a high...
7599640 Developer cartridge, process unit, and image forming device  
A developer cartridge is attachable to and detachable from an image forming unit. The developer cartridge includes a developer carrier, an input gear rotatable about a rotating axis, the input gear...
7593667 Image forming apparatus with detachable process unit  
An image forming apparatus including: a process unit having a developer container for containing a developer; an apparatus main body having an opening and a unit accommodation section into which...
7593663 Image forming apparatus  
An image forming apparatus includes: a photosensitive element; a charger for electrically charging the photosensitive element; an exposure device for scanning laser light across the photosensitive...
7592109 Thick electrophotographic imaging member undercoat layers  
Binders containing metal oxide nanoparticles and a co-resin of acrylic polyol resin and blocked polyisocyanate resin, and electrophotographic imaging member undercoat layer containing the binders.
7590371 Image carrying cartridge, process cartridge, and image-forming device  
An image carrying cartridge includes a shaft, an image carrying member, a first casing, and a second casing. The image carrying member is formed with a shaft insertion-hole through which the shaft...
7590370 Image forming apparatus having openings and a cover  
An image forming apparatus includes a development cartridge, a placement tray, an apparatus body, and a cover member. The development cartridge contains developer to be applied onto a recording...
7580815 Information processing apparatus and its control method  
When the convey behavior of a flexible medium conveyed in a conveying path is analyzed by simulation, a design support apparatus of this invention executes 1) processing for approximating a nip on...
7577377 Developing device, process cartridge and image forming apparatus including the same  
In a developing device of the present invention, the ratio of the volume of a two-ingredient type developer to the capacity of a space storing the developer is selected to range from 40% to 75%. A...
7570900 Process cartridge receiving from an image forming apparatus into which it is mounted a downstream-moving force during mounting and such image forming apparatus  
A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive member, a cartridge...
7567768 Method and apparatus for reassembling a toner cartridge  
Techniques for remanufacturing a toner cartridge include providing the toner cartridge comprising an end plate secured to an end of the toner cartridge, removing the end plate from the toner...
7565094 Process cartridge, photosensitive member cartridge, developer cartridge and developer cartridge for use in image forming apparatus  
A photosensitive member cartridge, including a photosensitive member, is provided with a lock device and a protection wall for the lock device. A developer cartridge includes a developer containing...
7565093 Image-forming device having cartridge-accommodating section  
A first cartridge and a second cartridge are detachably mounted in a housing of the image-forming device. The first cartridge is formed thicker than the second cartridge in a thickness direction...
7565092 Photosensitive member cartridge, developer cartridge and process cartridge with at least one engaging portion  
A developer cartridge that is attachable to and detachable from a photosensitive body cartridge that includes a photosensitive member is provided. The developer cartridge includes a frame that...
7561827 Developing cartridge having a handle that contacts an exposure unit when installed in an image forming apparatus  
An image forming apparatus includes a housing, an image carrier unit configured to move along a first direction between a first position and a second position in the housing and to hold image...
7561826 Method and apparatus for image forming capable of effectively supporting a process cartridge  
A support device for use in an image forming apparatus includes a process cartridge and an apparatus main body. The process cartridge further includes an image carrier, at least one sub unit, and a...
7558504 Image forming apparatus  
An image forming apparatus includes a developing part having a developing process roller and a position restricting protrusion; a main body having an installation part to install the developing...
7555243 Charging member, process cartridge including the same, and image forming apparatus including the same  
A charging member, which can be provided in a process cartridge and/or in an image forming apparatus, includes a conductive supporting member, an electrical resistance control layer formed on an...
7555237 Positioning mechanism for positioning a developing apparatus and related developing apparatus  
A positioning mechanism for positioning a developing apparatus is disclosed. The positioning mechanism includes a base. A guide slot is formed on the base for guiding the developing apparatus to...
7551877 Image forming apparatus  
An image forming apparatus is described. The image forming apparatus may include a main body casing, a reference shaft, a photosensitive unit, developing units and a pressing member. The...
7551860 Image forming apparatus including a recognition structure for recognizing the compatibility of an image forming process unit  
An image forming apparatus for recognizing compatibility of an image forming process unit to be removably mounted at a given position within a main body of the apparatus, includes an engaging...
7546064 Process cartridge with image carrier supporting structure for use in an image forming apparatus  
A process cartridge and an image carrier supporter for use in an image forming apparatus. The image carrier supporter temporarily fixes an image carrier inside a process cartridge of an image...
7546063 Image carrying member cartridge and image forming apparatus  
An image carrying member cartridge includes an image carrying member; a charging device disposed along an axial direction of the image carrying member for charging the image carrying member; a...
7542701 Process cartridge and an image forming apparatus having the same  
A process cartridge and an image forming apparatus including the same, the process cartridge comprising a side plate; a developing roller rotatably supported at the side plate; a photoconductive...
7542700 Image forming process module having a detachable waste developer storage tank and image forming apparatus having the same  
An image forming process module is provided having an integrated photoreceptor unit and development unit, and an image forming apparatus having the same. The image forming process module includes a...
7536130 Cartridge detachable from image forming device  
A toner cartridge for use in a printer includes a developing roller and an electrode. The toner cartridge is mountable in the printer by moving in a mounting direction and removable from the...
7532844 Process cartridge, image forming apparatus and method of assembling process cartridges  
Provided is a process cartridge including: a first developer accommodating section and a second developer accommodating section provided by splitting a developer accommodating space; a developer...
7532841 Protective cover, process cartridge employing same, image forming apparatus, and method of installing process cartridge  
A protective cover that includes: a cover body detachably mounted on a process cartridge to protect at least an outwardly exposed part of an electro-photographic photoreceptor; a guide part that is...
7532840 Process cartridge and image forming apparatus  
A brush holder for use in a process cartridge is integrally formed with a brush attachment portion, an extended end portion, a central extended portion, a downward extended portion, an electrode...
7532839 Process cartridge with a frame that supports an image holding member and an image forming apparatus  
A process cartridge includes an image holding member that is capable of holding a developing agent image thereon, a shaft that supports the image holding member, a bearing portion that receives the...
7532828 Image forming apparatus and developer remaining amount detecting method  
An image forming apparatus, which uses a developing device including: a developer carrying member; a developer containing portion; an agitating member agitating a developer; a developer amount...
7529503 Toner, developing device and developing method using the same  
The present invention provides a toner having: a toner mother particle; a first external additive including a first inorganic fine particle having a primary particle size distribution of 200 to 750...
7529502 Process cartridge in image-forming device  
A cartridge that can be detachably mounted in an image-forming device includes: a first wall; a second wall opposing the first wall with a gap formed therebetween, the first wall and the second...
7526232 Image forming apparatus and drive unit of image forming unit  
A swinging gear is constructed to be swingable in accordance with the rotational direction of a main gear. A first gear train is arranged to drive a black developing unit by meshing with the...
7526228 Developer cartridge, image carrier unit, and image forming apparatus  
The present invention provides a developer cartridge detachably attachable to a casing of an image carrier unit, includes a developing roller and a first rotation body that rotates the developing...
7526227 Image forming apparatus and cartridge  
An image forming apparatus includes a belt unit, a plurality of photosensitive drums, a cartridge, a casing, a cartridge holding unit and a first guide unit. The looped belt has a first surface...
7526225 Developing apparatus and assembly method of developing apparatus  
The blade back seal, which integrally comprises the side portions extending in the vertical direction at the longitudinal end portions of the leaf spring member and the connecting portion for...
7522859 Developer cartridge with an extension portion  
A developer cartridge including a frame, a developer supplying section, a developer housing section, and an extension portion is provided. The frame includes a first side wall and a second side...
7522858 Photosensitive-member unit and image forming apparatus  
A pressing member applies a pressing force to a trailing end in a direction which intersects a predetermined reference direction, allowing the pressing force to have both a first component in the...
7522853 Method and unit of controlling applied voltages for uniformly charging a photoreceptor  
A method of controlling AC voltages applied to a charging member to bring a photoreceptor to a state of uniform charging, with reduced time required for setting AC voltage value. The method...