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7620347 |
Developing device and image forming apparatus having a gear holder
An image forming apparatus includes a developing cartridge having a developing roller driven by developing roller drive gear, a supply roller driven by a supply roller drive gear, an input gear, a...
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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...
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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...
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7610000 |
Developing device driver and an image forming apparatus using the same
A developing device driver according to the present invention includes a developing roller gear connected to each developing roller to develop an electrostatic latent image formed on a...
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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...
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7594720 |
Recording apparatus
A recording apparatus, in which a recording medium is fed from one side of the recording apparatus, and the recording medium that has been recorded is ejected from the one side of the recording...
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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...
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7570901 |
Roller spacing apparatus and image forming device having the same
A roller spacing apparatus and an image forming device including the same. The roller spacing apparatus includes a first roller member that is rotatable, a second roller member that is rotatable in...
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7567772 |
Color printer apparatus
By using an embodiment of the invention, an image forming apparatus capable of reducing time required until an image output of a single color frequently used for image formation is outputted and...
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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...
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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...
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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...
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7561817 |
Toner cartridges, development cartridges, and image forming apparatus including such cartridges
An image forming apparatus includes: an electrostatic latent image bearing member; a toner cartridge; a developing member; a transfer member; a development cartridge; a development contact; and...
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7555251 |
Image forming apparatus and toner cartridge
An image forming apparatus includes: an image carrier on which an electrostatic latent image is formed; a toner cartridge detachably mountable to the image forming apparatus, including a toner...
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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...
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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...
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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...
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7539440 |
Magnetic monocomponent developer and image forming method
The present invention provides a magnetic monocomponent developer which can obtain a stable conveying performance for a long period and an image forming method which uses the developer. In a...
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7536132 |
Developing recovery container
A developer collecting container detachably mountable to a rotatable member which is provided in an image forming apparatus to rotate a developing device, the developer collecting container which...
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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...
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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...
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7529505 |
Restricting unit for restricting a supporter of developers in an image forming apparatus
An image forming apparatus comprises: a housing; a supporter located in the housing, a plurality of developing apparatus attachable to and detachable from the supporter; and a restricting unit that...
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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...
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7529492 |
Developing cartridge and image forming apparatus
A developing cartridge is detachably attached to an electrophotograpy-type image forming apparatus which forms an image on a recording sheet by transferring toner onto the recording sheet. The...
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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...
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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...
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7522865 |
Toner development unit
A toner development unit for an image forming apparatus including a roller and an electrode adjacent thereto, the electrode having an arcuate extent adjacent to a portion of a surface of the roller...
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7522860 |
Developer cartridge for image-forming device
A developer cartridge is detachably mountable in an image-forming device having a driving rotator. The developer cartridge includes a developing roller and a driven rotator. The driven rotator is...
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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...
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7519312 |
Developing unit and image forming device
A developing unit is disclosed which is configured to supply toner to a photosensitive drum in the body of an image forming device, and can be detachably mounted to the body of the image forming...
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7512363 |
Providing electrical potential to a rotatable developer carrier in an image forming apparatus
Developing cartridges for use in image forming apparatuses having an image carrier, include: (a) a case; (b) a developer carrier supported by the case (for holding developer thereon); and (c) a...
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7512347 |
Image-forming device capable of determining information on a detachably mounted developer cartridge and developer cartridge for use therein
When a new developer cartridge is initially mounted in an image-forming device, a toothed part of a sensor gear disposed in the cartridge is brought into meshing engagement with an agitator drive...
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7509069 |
Electrophotographic image forming apparatus for printing photographic image and method for printing photographic image using the same
An electrophotographic image forming apparatus for printing a photographic image and a photographic image printing method by using the same are provided. The electrophotographic image forming...
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7505717 |
Image forming apparatus
An image forming apparatus is provided with a body; a developing unit formed inside the body; a toner accommodation unit mounted inside the body and provided with at least two or more cartridges;...
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7505716 |
Process cartridge having lockable parts, for an image forming apparatus
A process cartridge of an image forming apparatus including a development cartridge including, a development cartridge housing with a toner inlet port therein, and a toner inlet port cover movably...
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7505710 |
Image forming apparatus featuring pull-out developing and sheet feeding devices
An image forming apparatus has a developing device and a feeding device. At least a part of the feeding device is supported so that it can be horizontally pulled out by a pulling-out member. The...
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7505699 |
Electrophotographic image forming apparatus
An image forming apparatus includes an image bearing member on which an electrostatic latent image is capable of being formed; a developer accommodating container for accommodating a developer for...
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7502580 |
Two component development system using ion or electron charged toner
A development system for an electrophotographic machine in which uncharged toner is stored in a housing having an opening. A rotatable dispensing roll is mounted in the housing opening. An overhung...
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7493061 |
Process cartridge including at least one replaceable member and image forming apparatus
A process cartridge is provided with a frame body made up of at least first and second frame bodies that are movable relative to each other to form a space, a frame body positioning member...
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7486910 |
Cartridge detachably mounted to an image forming apparatus including a lock member engagable with a wall of the image forming apparatus
A process cartridge detachably mounted to an image forming apparatus is provided with a lock mechanism in a shutter member of opening and closing a toner discharge port, and once the process...
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7483658 |
Image forming method and apparatus capable of enhancing toner mobility
An image forming apparatus includes an image carrying member, a charging device for charging the image carrying member, an exposure device for writing a latent image on the image carrying member, a...
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7477857 |
Developing unit, image forming device, and developing bias control method
An image forming device includes a developing unit, which is removably inserted in the image forming device, and the developing unit includes an accumulating chamber, a developing member, and a...
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7473508 |
Toner, developer and image forming apparatus
A toner composition including toner particles including at least a binder resin; and a colorant, wherein the toner composition satisfies at least one of the following relationships (1) and (2):
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7463854 |
Developing apparatus, processing cartridge, and image forming apparatus
A sheet-shaped regulation member is supported by a supporting unit with an elastic force occurring by bending a sheet-shaped regulation member in the longitudinal direction thereof, and a force...
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7463847 |
Image-forming apparatus having developing units in removable holding unit
An image-forming apparatus includes: a main body; at least one photosensitive member; an exposing unit; a plurality of developing units; a transferring unit; and a first holding unit. The...
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7457560 |
Developing device
A developing device is provided with a case main body, a developing roller coupled with the case main body, an axis direction seal member coupled with the case main body, and a side seal member...
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7454145 |
Packaging detection and removal for an image forming device
Upon initialization of an image-forming device, a sensor generates a signal to indicate the presence of packaging material at a location within the image-forming device. The image-forming device...
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7447467 |
Image-forming device with holding unit having multiple positions
An image-forming device includes: a main body; at least one photosensitive member; a plurality of developing units; a transferring unit; a first holding unit; and a guiding unit. The photosensitive...
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7444103 |
Image-forming device and developing unit used therein
In an image-forming device including an image-carrying member, a developer-carrying member, and a casing having an inner space in which developer is accommodated and the developer-carrying member...
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7444087 |
Image forming apparatus and developer cartridge with power supply shielding mechanism
A CPU causes a power control unit and a bias application circuit at all times to apply a developing bias to a developing roller thereby to execute a printing operation. When the CPU determines the...
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