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7620353 |
Image forming apparatus and control method for driving the same
An image forming apparatus and control method, the image forming apparatus including: a first image bearing body and a second image bearing body aligned to form predetermined color images; a...
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7616916 |
Image forming device
An image forming unit 100 has a main body 1 and an opening unit 22 that can be opened and closed with respect to the main body 1 . An installation unit 99 is provided to install the...
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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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7610009 |
Image recording apparatus
An image recording apparatus includes: a transfer roller that transfers an image formed on a photoconductor drum onto continuous paper pressed against the photoconductor drum; and guide rollers...
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7610004 |
Apparatus for detecting amount of toner deposit and controlling density of image, method of forming misalignment correction pattern, and apparatus for detecting and correcting misalignment of image
An image forming apparatus includes a reference-pattern detecting transfer-body, a reference-pattern detecting unit, and a condition changing unit. The reference-pattern detecting transfer-body...
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7609998 |
Transfer unit and image forming apparatus
A transfer belt is driven by a plurality of supporting rollers. A unit frame supports the supporting rollers in a rotatable manner. At least one of the supporting rollers includes a cylindrical...
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7609997 |
Transfer belt unit mounting/dismounting device and method
There is provided a transfer belt unit mounting/dismounting device constituted by a decreased number of component parts capable of using the guide rails not only to guide the insertion of the...
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7606521 |
Desktop color image forming apparatus and method of making the same
The present invention relates to an electrophotographic color image forming apparatus using a tandem-drum development, an indirect image-transfer method, and a vertical sheet supply path. An...
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7606507 |
Image forming apparatus
An image forming apparatus includes: a primary transfer section which transfers a toner image formed in an image forming section onto an intermediate transfer belt; a back-up roller arranged on an...
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7603047 |
Image forming apparatus capable of forming high-quality image
A printer detects density of a toner pattern on an intermediate transfer belt, operates a differential value for the detection value, and compares the differential value with a threshold value. If...
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7599651 |
Image forming apparatus including grooved cam and link mechanism engaging with grooves of the grooved cam
An image forming apparatus has: an intermediate transfer member to which a toner image developed on a photosensitive material is transferred while the intermediate transfer member rotates plural...
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7599646 |
Image forming apparatus with an endless belt for receiving toner images and a controller for controlling surface speed of an image bearing member or the moving speed of the endless belt in accordance with surface conditions of the endless belt
An image forming apparatus includes an image forming section for forming a plurality of toner images on a plurality of image bearing members respectively by an electrographic system; an endless...
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7593676 |
Image-forming apparatus with improved intermediate transfer body
An image-forming apparatus including: an image holding member; a charging device that charges the image holding member; an electrostatic latent image-forming device that exposes a surface of the...
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7593675 |
Color image forming apparatus having a discharging unit to discharge an electrical charge of a toner image transferred on an intermediate transfer member
A color image forming apparatus includes: a plurality of image carriers each on which a toner image having a color different from each other is formed; an intermediate transfer member to which each...
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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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7590375 |
Image-forming apparatus having movable tensioner and electrode member that reduce toner scatter
An image-forming apparatus includes an image-carrying belt that is rotated while carrying toner images on an outer circumferential surface thereof; a movable tensioner applying tension to the...
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7587159 |
Image forming method and apparatus including a relationship between secondary roller diameter and recording medium ingress position
Provided is an image forming method that comprises a charging step, an exposing step, a developing step, an intermediate transfer step and a secondary transfer step, wherein the diameter R (mm) of...
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7587158 |
Second transfer area for an image forming device and methods of use
The present application is directed to second transfer areas and methods of transfer toner images from an intermediate member to a media sheet. The second transfer area comprises a second transfer...
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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...
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7580663 |
Image forming apparatus comprising a move member which moves to the surface of the photosensitive drums
A transfer roller drive unit sets an all-separate mode after setting a full-color mode, sets a monochrome mode after setting the all-separate mode, and sets a full-color mode after setting the...
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7580662 |
Image forming apparatus with sensing member that senses reflection of light rays from an intermediate transfer belt
An image forming apparatus includes an intermediate transfer belt having a coated layer as a surface layer that carries an developer image on the surface layer, a light-emitting member that emits...
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7572348 |
Method and device for printing objects
Method for printing objects, whereby these objects ( 15 ) are provided with a multi-layered print, characterized in that to this aim, on one hand, two or more layers of printing medium ( 10 - 11 -...
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7570908 |
Image forming device and image forming device control method
A technique capable of preventing deterioration of image quality resulting from a band-shaped toner image created on a photosensitive surface in order to prevent so-called carrier attraction is...
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7570907 |
Image forming apparatus and image forming method
If a velocity calculated by a velocity calculating unit deviates from a normal range, a target velocity is used as a feedback amount, an actuation amount corresponding to a deviation Ve=0 between...
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7567775 |
Image forming apparatus having a retracting and a moving mechanisms and image forming method thereof
An image forming apparatus includes a transparent image forming unit having a transparent image carrier; plural color image forming units arranged on a downstream side in a process direction of the...
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7565100 |
Electrophotographic apparatus and intermediate transfer member partitioned by multiple slits
An image forming apparatus including an image carrier on which a toner image is formed, a charging unit that charges a surface of the image carrier, a latent image processing unit that forms a...
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7561839 |
Image forming apparatus and image forming method
An image forming apparatus according to the present invention includes a first toner-image forming unit that forms a first monochrome toner image, a first intermediate transfer drum onto which the...
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7560209 |
Electrophotographic image forming apparatus and image forming unit
An electrophotographic image forming apparatus, comprises an electrophotographic photoreceptor; an image forming section for forming a toner image on a surface of the electrophotographic...
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7558517 |
Image forming apparatus featuring alleviation of toner image deformation resulting from a rotational speed change of an image bearing member
An image forming apparatus is constituted by an image bearing member rotatable while bearing a toner image; and a transfer member for transferring the toner image onto a transfer medium, the...
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7558508 |
Image forming apparatus having belt wound around roller with specific roughness
An image forming apparatus includes: a plurality of rollers; and an endless belt wound around said rollers, said rollers including: a driving roller which drives said belt wound around said rollers...
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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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7551881 |
Image forming apparatus with feature for decreasing the influence of electric discharge in image transfer member
An image forming apparatus includes a movable belt; a first image carrying member for carrying a toner image; a first transfer member for electrostatically transferring a toner image onto the belt...
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7551880 |
Image forming apparatus featuring a cleaning device including a conductive support member provided so as to intersect a line segment connected between rotational centers of a charge member of a first image forming unit and a developing member of a second image forming unit
A support member for supporting a cleaning blade of an upstream side is arranged between a charging roller of an image forming unit of the upstream side and a developing sleeve of an image forming...
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7551876 |
Image forming apparatus featuring accurate positioning of an intermediate transfer roller relative to a main body of the apparatus
An image forming apparatus includes an image bearing member which bears a toner image; an intermediate transfer member on which the toner image on the image bearing member is primary transferred;...
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7548716 |
Color gamut and enhanced transfer using hybrid architecture design
A color printing machine with a hybrid development architecture is provided including a photoreceptor, a first and second set of development housings, a biased transfer belt, and a fuser. The first...
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7548704 |
Image forming apparatus effectively conducting a process control
An image forming apparatus includes at least one image bearing member, an intermediate transfer member, a secondary transfer member, and at least one optical sensor. In the image forming apparatus,...
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7546075 |
Image forming apparatus featuring a multilayer member with a roughened layer surface to irregularly reflect incident light and method for making the multilayer member
A belt includes a surface layer and an underlayer. An interface between the surface layer and the underlayer is roughened to irregularly reflect incident light.
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7546074 |
Image forming apparatus
An image forming apparatus includes at least one image forming unit, a primary transfer belt, and a secondary transferer. The image forming unit includes an image carrier and a primary transfer...
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7546073 |
Image forming apparatus having an intermediate transfer member wrapped around and driven by a photoconductor drum
There is provided an image forming apparatus including: a photoconductor drum; an intermediate transfer belt that is wrapped around and stretched between the photoconductor drum and a plurality of...
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7542707 |
Image forming apparatus
An image forming apparatus including: colored toner image forming devices each developing an electrostatic image with colored toner to form a colored toner image; a transparent toner image forming...
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7542690 |
Color image forming apparatus, and program and method of controlling a color image forming apparatus
In a color image forming apparatus, a color mode is switched from a full color mode to a single color mode as follows. When the length of an image of a last page in the full color mode is less than...
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7536144 |
Endless belt and image forming apparatus
An endless belt including a belt main body in which a ten-point average roughness (Rz) of an inner peripheral surface thereof is in a range of 2.0 μm or higher and 10.0 μm or lower and an average...
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7519319 |
Image forming device having a sheet delay transfer mode
An image forming device includes an intermediate transfer member to which a toner image formed on an image bearing member is primarily transferred and which is able to simultaneously support a...
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7519303 |
Image forming apparatus with color shift correction
An image forming apparatus includes an intermediate transfer belt that moves while keeping contact with a photosensitive element at a transfer position, a control pattern forming unit that forms a...
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7505712 |
Image forming apparatus
The image forming apparatus according to the present invention has: a transfer unit including an intermediate transfer medium that circularly moves; plural image forming sections provided in...
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7502584 |
Image forming apparatus sensing displacement of an intermediate image transfer body
An image forming apparatus of the present invention includes a plurality of belt position sensors adapted to sense the position of an intermediate image transfer belt in a direction perpendicular...
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7502583 |
Transfer device and image forming apparatus for enhancement of an image stored on a recording medium
A transfer device includes an endless belt, an external roller, and an internal roller. The external roller is arranged outside of the loop of the endless belt and the inner roller is arranged...
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7499669 |
Transfer unit and image forming apparatus
Latent images of different colors are superimposed on an intermediate transfer belt of an endless type from image carriers, to form a full color toner image. A tension roller maintains a tension of...
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7499668 |
Image forming apparatus including belt member with non-image forming area
An image forming apparatus includes: an image carrier an outer face on which a plurality of color images are formed; a plurality of roll portions; a belt member including an inner side, an outer...
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7499667 |
Endless belt drive controlling apparatus including angular displacement error calculation and associated image forming apparatus
An endless belt drive controlling apparatus includes an endless belt and its drive unit, a first detector that detects a belt mark, a second detector that detects a detected angular displacement...
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