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7627263 |
Image forming apparatus including a cleaning web for removing residual toner
The image forming apparatus of this invention includes an image bearing member which bears a toner image; a toner image forming device which forms a plurality of the toner images on the image...
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7627261 |
Image forming apparatus and image forming method having control of cleaning depending on number of transferred images
An image forming apparatus that forms an image using a plurality photoconductor bodies includes a cleanerless transfer belt configured to convey paper to the plurality of photoconductor bodies and...
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7620339 |
Image forming apparatus including first and second cleaning members
An image forming apparatus includes a first image forming station including an image bearing member, developing means for developing an electrostatic image formed on the image bearing member with...
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7616914 |
Color image forming apparatus
There is described a color image forming apparatus, which makes it possible to prevent the intermediate transfer belt from slacking. The apparatus includes a plurality of image bearing members; an...
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7609993 |
Image forming apparatus that prevents developer from spilling
An image forming apparatus, includes: a developer moving element that moves developer in order to transfer the developer onto a medium by rotating with the developer being borne on the developer...
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7609992 |
Image forming apparatus with a pollution control unit
An image forming apparatus that can prevent a transfer belt from being polluted by used developer on a belt cleaning member is disclosed. The apparatus includes at least one photoconductor on which...
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7609990 |
Image forming apparatus that prevents toner from being jetted when cleaner blade or sealing member is separated from image carrier
A first rotary image carrier is adapted to support a toner image obtained by developing an electrostatic latent image formed thereon. A second rotary image carrier is adapted to support, on a toner...
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7606510 |
Image forming device including a cleaning device
A laser printer is provided which includes a conveying belt, which is configured for circulating movement and which indirectly supports developer over a recording medium. Furthermore, a cleaning...
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7596337 |
Cleaner unit and image forming apparatus including the same
A cleaner unit includes a cleaner roller, a cleaner shaft, a blade, a toner container, and a toner squeeze pump. The cleaner roller collects toner adhered to a surface of a belt to a surface of the...
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7596335 |
Field assisted cleaning system for a transfer belt and an image forming apparatus
An image forming device is provided with a photoreceptor, a belt, a back member, a front member, and a voltage change device. The belt faces the photoreceptor. The back member is disposed on a back...
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7593665 |
Image forming apparatus with cleaning unit
There is described an image forming apparatus equipped with a cleaning unit to clean a belt-type transfer member. The cleaning unit includes: a conductive opposing roller that contacts an inner...
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7593664 |
Image-forming device and belt unit having belt tension-adjusting mechanism
A color laser printer includes a plurality of photosensitive drums and a paper-conveying belt disposed in confrontation with the photosensitive drums. The paper-conveying belt conveys a sheet of...
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7590368 |
Image forming apparatus and method of cleaning intermediate transfer belt
An image forming apparatus includes an intermediate transfer belt that has an elastic layer to which a toner image on an image carrier developed using a liquid developer is primarily transferred, a...
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7561819 |
Belt cleaning device having cleaning blade for image forming apparatus
A pressure release cam and a boomerang cam are provided. The pressure release cam is interlocked with a belt cleaner when the latter is turned, whereas the boomerang cam is interlocked with the...
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7558522 |
Image forming apparatus having toner cleaner and toner cleaning method
An image forming apparatus according to one embodiment of the invention includes an image carrier and a cleaning device for cleaning a developer left on a surface of the image carrier. Further, the...
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7558497 |
Image forming apparatus and image forming method
An image forming apparatus increases a primary-transfer pressure contact force at the times of primarily transferring black color to a first sheet and yellow and black colors to a second sheet or...
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7555236 |
Image forming method and apparatus for effectively performing a cleaning operation of a transfer member
An image forming apparatus includes an image bearing member configured to bear an image on a surface thereof, a transfer unit configured to transfer the image formed on the surface of the image...
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7551871 |
Power supply device and image forming apparatus using the same
A power supply device includes a plurality of DC voltage generating circuits that share a voltage control circuit controlling a voltage to be supplied to a voltage stabilizing capacitor. The...
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7548709 |
Transfer unit, transfer method, and image forming apparatus
A transfer unit includes: an intermediate transfer belt that (i) holds a toner image that has been transferred from a photoreceptor drum and (ii) moves a surface holding the toner image; and a...
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7542695 |
Image forming apparatus with cleaning device that does not cause excessive cutting and cleaning method
In an image forming apparatus including a cleaning device having a cleaning blade arranged so as to make contact with and separate from a cleaned surface, an occurrence of excessive cutting when...
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7532846 |
Treating transport mechanism in a printing press
Treating a transport mechanism ( 5 ) for transporting print material ( 2 ) in a printing press ( 1 ) that uses toner in which oil-bearing substances ( 27 ) adhere to the transport mechanism ( 5 )....
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7526221 |
Image forming apparatus having mechanism for changing pressing force between cleaning member and belt
An image forming apparatus includes a belt, a cleaning member, a backup member, a pressing-force changing mechanism, and a control unit. The cleaning member is disposed in confrontation with the...
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7519309 |
Image forming device
A photosensitive drum 18 is provided to carry electrostatic latent images. Developers 23 K through 23 Y supply toner to the electrostatic latent images formed on the photosensitive drum 18 ....
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7496306 |
Cleaning method for transfer device of image forming apparatus
A constant current output is applied to a backup roller or a secondary transfer member, and a cleaning bias is controlled according to a measurement obtained by monitoring a voltage generated at...
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7480471 |
Belt drive device and image forming apparatus having the same
A belt drive device includes: a plurality of rollers; an endless belt placed on the rollers to be movable; a roller shaft shifting member disposed on at lease one end portion of a shaft of at least...
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7480470 |
Image forming apparatus including a removing member for removing toner from a toner collecting member
The image forming apparatus has an image bearing member, a detecting member, a toner image forming apparatus, a transfer member and a collecting member for collecting toner of a toner image for...
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7474865 |
Image forming apparatus and method for separating contaminant from blade for cleaning transfer belt surface
An image forming apparatus includes a transfer belt stretched around driving and blade opposing rollers. The blade opposing roller is biased in a bias direction away from the driving roller by a...
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7471914 |
Cleaning unit for cleaning a conveyor belt
A cleaning unit is provided for cleaning of a transport belt for transport of recording media in a electrographic printer or copying device. An abration element is positioned to avoid toner located...
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7463855 |
Color image forming apparatus and image forming method
A color image forming apparatus includes an image forming section that is configured to adopt an intermediate transfer system for three colors of cyan, magenta and yellow, and a direct transfer...
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7460811 |
Image forming apparatus
An image forming apparatus includes: an image bearing member which is rotated while bearing a toner image; an intermediate transfer belt onto which the toner image is primary-transferred from the...
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7454153 |
Cleaning of contamination in a printer as a function of a register error
Cleaning of contamination in a printer, especially contamination by the use of a fixing aid, in which the contamination is determined by evaluating the register of a print of the printing machine....
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7447455 |
Color image forming apparatus and mono color printing method thereof
Disclosed are a color image forming apparatus for mono color printing and a method thereof. The apparatus includes photoconductors, a charger, a development unit for forming a developer image on...
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7444098 |
Image forming apparatus with cleaning unit
There is described an image forming apparatus equipped with a cleaning unit to clean a belt-type transfer member. The cleaning unit includes: a conductive opposing roller that contacts an inner...
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7440711 |
Image-forming apparatus having cleaning roller to remove toner from transfer roller that facilitates transferring toner image from image-bearing member to recording material
An image-forming apparatus includes an image-bearing member supporting a toner image; a transfer roller that rotates in contact with the image-bearing member so as to transfer the toner image to a...
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7433626 |
Image forming apparatus featuring different voltages for collecting and transferring toner from a cleaning member
An image forming apparatus includes a rotatable image bearing member for bearing a toner image, a toner image forming member for forming the toner image, a transfer member for transferring the...
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7418218 |
Conductive backer brush for electrostatic brush cleaning of a belt without a ground layer
A transfer cleaning station for an electrostatic marking system is provided. In this station, the upper surface of a movable transfer belt is cleaned by a rotating electrostatic cleaning brush...
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7412187 |
Apparatus and method for cleaning the transfer roller of image forming apparatus
An apparatus and method for cleaning a transfer roller of a wet-type image forming apparatus are provided. The method includes applying a measured voltage to the transfer roller; measuring a...
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7412176 |
Method of processing an error of an image forming apparatus
A method of processing an error of an image forming apparatus judges an error occurrence of the image forming apparatus, and if the error occurs, it stops the operation of a conveyer unit. After...
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7406289 |
Image forming apparatus using a cleaning device and cleaning method thereof
Disclosed is a cleaning device, a cleaning method and an image forming apparatus applied with the cleaning device and the cleaning method. The cleaning device includes a first cleaning member for...
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7398043 |
Image forming apparatus free of defect due to substances bleeding from transferring member
An image forming apparatus includes an image bearing member for carrying a toner image; a toner image developing device for forming a toner image on the image bearing member; a transfer roller for...
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7398032 |
Image forming apparatus featuring first and second cleaners operable on the basis of an interval of an image forming process during a continuous image forming process
An image forming apparatus includes an image bearing member on which an electrostatic image is formed; a development device which develops the electrostatic image formed on the image bearing...
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7395022 |
Image forming apparatus with toner recovery system
An image forming apparatus has an image carrier on which an electrostatic latent image is formed, a developing unit that develops the electrostatic latent image using a toner to form a toner image,...
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7395005 |
Image forming apparatus with cleaning blade and residual toner storage compartment
An image forming apparatus, comprising an image carrier to carry toner image formed based on image data, a cleaning blade to remove residual toner on the image carrier by being in contact with the...
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7395004 |
Image forming apparatus featuring first and second toner removing sequence selected on the basis of a toner amount per unit area
An image forming apparatus includes an executing portion, which executes a first removing sequence and a second removing sequence when removing a toner image borne on an intermediate transfer...
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7392008 |
Electrophotographic image forming method and apparatus
An image forming apparatus including an image bearing member; a charger for charging the image bearing member; a light irradiating device for irradiating the charged image bearing member to form an...
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7392007 |
Intermediate transfer system and method for cleaning intermediate transfer belt
A cleaning blade for removing residual toner left on the surface of an intermediate transfer belt after the second transfer is supported integrally with movement of a tension roller. In the case...
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7391988 |
Image forming apparatus and belt device
An image forming apparatus includes: a plurality of rollers including at least one drive roller to be rotatively driven; a belt passed around the plurality of rollers; and a press member which is...
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7383001 |
Image forming method and apparatus capable of effectively positioning a cleaning unit
An image forming apparatus and corresponding method, the apparatus including at least one image bearing member configured to bear an image, an intermediate transfer member configured to transfer...
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7379691 |
Carrier remover device, a wet-type image forming apparatus having the same, and a method for removing carrier in wet-type image forming apparatus
A carrier removing device of a wet-type image forming apparatus, according to an embodiment of the present invention, comprises an intermediate transfer medium and a vaporizing unit. The...
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7379686 |
Image forming apparatus featuring first and second developer agent removing members
An image forming apparatus including an image bearing member which bears developing-agent images; a first removing member which removes a developing agent from the image bearing member, wherein the...
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