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9042760 Heating device  
According to one embodiment, there is provided a heating device that includes a heating source, a non-contact thermistor, a contact thermistor and a control unit. The control unit is configured to...
9042751 High voltage power supply and image forming apparatus  
A high voltage power supply includes a developer carrier, an image carrier, a developing control unit, a load detection unit, a variation detection unit, and a voltage correction unit. The...
9031428 Image forming apparatus capable of determining a toner adhesion quantity  
An image forming apparatus includes a image forming unit; an image bearing member having a surface to bear a toner image and a test pattern; the surface having a first time-surface positioned...
9031492 Image forming apparatus and curl correcting method  
An image forming apparatus includes: a curl correction device which corrects curl generated in a recording medium having passed through a fixing device; a temperature/humidity sensor unit which is...
9024477 High voltage power source device and image forming device  
A high voltage power source device includes piezoelectric transformers, each of the piezoelectric transformers being formed with a primary electrode and a secondary electrode on piezoelectric...
9025977 Image forming apparatus  
An image forming apparatus capable of continuous image formation on multiple pages includes an image bearer to bear an image, a latent image forming unit to form a latent image on the image...
9020400 Image forming apparatus for forming a measurement image  
An image forming apparatus includes a measurement unit configured to irradiate a measurement image with light, and measure the light reflected from the measurement image, a white reference plate...
9014601 Image forming apparatus  
A color image forming apparatus includes a first temperature detection unit configured to detect a temperature of an exposure device, a second temperature detection unit configured to detect a...
9001377 Image forming apparatus and method of controlling the image forming apparatus  
An image forming apparatus performs density correction. An image forming section forms a density detection image on a belt. A light source irradiates the image with light. A light receiving...
8995853 Transfer device and image forming apparatus including transfer device  
A transfer device includes an intermediate transfer belt, a driving roller, an environment sensor, a resistance detecting sensor, and a speed ratio adjusting section. The toner images are...
8971737 Image forming apparatus  
An image forming apparatus includes an image bearing member, a first conductive member, a bias application device, and a control portion, and performs image formation on a surface of the image...
8965255 Image forming apparatus with color slippage correction  
Image forming apparatus corrects for color slippage in toner image of a plurality of colors that have been sequentially transferred onto moving transfer target from the plurality of respective...
8958730 Image forming apparatus  
To accomplish this, an image forming apparatus of the present invention determines whether the temperature of an exposure unit is changing at a predetermined gradient or more, detects...
8948629 Image forming apparatus and image forming method  
An image forming apparatus includes image carrier carrying latent image, developer carrier supplying developer on the image carrier, transfer part transferring the developer on the image carrier,...
8942581 Image forming apparatus  
An image forming apparatus is configured to perform a collecting operation for moving the attached matter held on a holding roller onto the photosensitive drum and collecting the attached matter...
8942576 Image forming apparatus and image forming method  
An image forming apparatus for forming an image based on an electrophotographic process applied to image data that represents the image includes a device configured to perform a periodic movement...
8942582 Image forming apparatus  
An image forming apparatus includes a photoconductor; an intermediate transfer belt to which a toner image formed on the photoconductor is transferred, the intermediate transfer belt holding the...
8934794 Image forming apparatus, stirring unit and process cartridge  
A developer stirring unit is rotated and driven without driving an electrophotographic photosensitive drum according to output information of a temperature detection unit of an image forming...
8929756 Developing device, image forming apparatus, and method for changing duty ratio  
A developing device includes a developing roller, a magnetic roller, a capacitor, a transformer, a switching section, a control section, a temperature detecting section, and a storage section....
8923711 Image forming apparatus configured to control a transfer bias  
An image forming apparatus including: a photosensitive member; a charging member; a developer carrier; a transfer member; a charging control unit that applies a charging bias having the same...
8923712 Image forming apparatus  
An image forming apparatus includes a toner image holding member, a transfer unit, and a supply unit. The toner image holding member holds a toner image. The transfer unit transfers the toner...
8922799 Image forming apparatus  
Provided is an image forming device that has a duplex printing function, and suspends execution of a printing operation to allow internal temperature to decrease when the internal temperature...
8909080 Image forming apparatus having transfer voltage setting portion  
An image forming apparatus includes a control unit having a first function and a second function. The first function controls a downstream transfer current to be less than an upstream transfer...
8891993 Image forming apparatus capable of reducing a toner consumption amount by performing toner supply control  
In an image forming apparatus, to provide a lubrication effect for an abutment portion of a transfer belt and a belt cleaning blade, when a control toner image is supplied, the control toner image...
8891985 Bias power supply device and image forming apparatus  
A bias power supply device includes: a temperature detecting unit; a control signal generation unit generating and outputting an output frequency setting signal for setting a frequency of an...
8886065 Image forming apparatus  
A reference value of an electric current flowing through each charging member is determined and recorded in a memory unit at a predetermined time by a reference value recording unit. A voltage...
8886063 Image forming apparatus and method of controlling developing unit thereof  
An image forming apparatus is provided. The image forming apparatus includes a developing unit which contains a mixture of toner and carrier, a toner sensor which is disposed in the developing...
8879934 Image forming apparatus  
An image forming apparatus, including: a fixing device configured to fix a toner image onto a sheet by heating the sheet having the toner image formed thereon; a wire-shaped guide configured to...
8859940 Image heating apparatus  
The image heating apparatus includes first and heat generation member, a connection state switching section switching the first and second heat generation members between a serial connection state...
8855513 Image forming apparatus  
An image forming apparatus includes: a transfer portion that transfers a toner image from a first image forming element to a second image forming element when transfer voltage is applied; and a...
8849149 Image forming apparatus that measures temperatures at first and second locations and that changes the exposure condition for exposure at a third location based on the measured temperatures, and corresponding image forming method  
An image forming apparatus includes temperature sensors that measure temperatures at different locations in the longitudinal direction of a photosensitive drum. The image forming apparatus also...
8837995 Image apparatus with color registration adjustment, control method therefor, and storage medium storing control program therefor  
An image forming apparatus comprising image forming units, an image bearing member for bearing images, a table indicative of a correspondence relationship between temperature and an amount of a...
8836967 Image forming apparatus and computer readable medium having computer program product for measuring amount of mismatch stored thereon  
An image forming device includes an image forming section, a CPU and memory storing executable instructions that, when executed by the CPU, cause the image forming device to provide functions...
8837967 Device for determining and adjusting transfer voltage in an imaging apparatus and a method thereof  
A device and method for determining and applying a transfer voltage in an imaging apparatus is provided. A servo voltage is determined based in part upon a change in an environmental condition. A...
8831452 Image forming apparatus with transfer voltage detection  
An image forming apparatus includes a photosensitive member; charging device for electrically charging the photosensitive member; an exposure device for exposing to light the photosensitive member...
8831464 Image forming apparatus  
An image forming apparatus includes a housing, a detection unit provided in the housing to detect temperature or humidity, an image forming section provided in the housing and including a detected...
8831448 Fixing device, image forming apparatus, and fixing condition control method  
A fixing device includes a temperature rise characteristic acquisition unit that acquires a temperature rise characteristic of a recording medium based on temperature change information of the...
8824904 Fixing device and image forming apparatus  
A fixing device includes a temperature measuring unit, configured to measure the temperature in regions that extend partially along the outer surface of a heating rotating body, which includes a...
8804150 Image forming apparatus with plurality of optical scanning devices  
An image forming apparatus includes a plurality of optical scanning devices, a job receiver, a job executor, an image discriminator, a temperature condition judger and a temperature adjuster. When...
8804149 Image forming apparatus with plurality of optical scanning devices  
An image forming apparatus includes a plurality of optical scanning devices, a mode receiver, a temperature condition judger and a temperature adjuster. In the case of forming an image using one...
8798488 Image forming apparatus including guide and attracting members  
An image forming apparatus includes an attracting member and a guide member. The attracting member extends along a transport path. A print medium carries a developer image thereon and is...
8787806 Image forming apparatus  
An image forming apparatus includes a transfer device to transfer a toner image formed on an image bearing member onto a recording medium, a sheet separation device to separate the recording...
8781346 Image forming apparatus and method  
Certain embodiments provide an image forming apparatus including: an image carrier; a latent image forming unit; a developing unit; a fixing unit; a toner cartridge; a battery in the toner...
8781347 Image forming apparatus and method of driving the same  
An image forming apparatus and a method of driving the same are provided in which, if a driving environment is determined to be a low temperature environment, a driving load of an image forming...
8774658 Image forming apparatus including control unit that executes energy control by controlling biases  
An image forming apparatus includes: a first photosensitive drum for a monochrome printing mode; second and third photosensitive drums for a color printing mode; a moving unit moving a medium from...
8760674 Multiple setting user interface with visual icons for customized usability  
A printing apparatus/method includes at least one processor, at least one printing engine, and at least one graphic user interface all operatively (directly or indirectly) connected to each other....
8755707 Image forming device having function for controlling temperature of heating member  
An image forming device has a heating member, a thermal detecting unit, and a control unit. The heating member is positioned at an ambient temperature and heated by a heat source. The heating...
8750732 Moisture sensor, moisture detector, and image forming apparatus  
A moisture sensor for detecting moisture content of an object includes a light source to emit light having an infrared wavelength that is absorbed by water; an optical system to receive the light...
8744292 Image forming apparatus and method for stopping driving image carrier  
An image forming apparatus includes an image carrier to carry a toner image; a driving unit to drive the image carrier to rotate; a transfer unit to transfer the toner image at a transfer...
8737898 Fixing device provided with temperature sensor  
There is provided a fixing device for thermally fixing a developing agent image to a sheet. The fixing device includes a tubular flexible member, a heater, a nip member, a reflection plate, a...