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| Number | Title | Issue Date |
| 8068760 | Sheet feeder and image forming apparatus A sheet feeder which feeds a sheet in a sheet storage case includes a sheet storage case in which a sheet is stored, a dehumidifier which dehumidifies air, an air tank in which air dehumidified by the dehumidifier is stored, shutters and which bring the air tank and... | 11/29/2011 |
| 8045879 | Methods for controlling environmental conditions in an electrophotographic apparatus and a corresponding electrophotographic apparatus Disclosed are a method of controlling moisture in an electrophotographic apparatus having a fuser assembly, and corresponding electrophotographic apparatus. The method includes measuring a cavity temperature of an inner portion of the electophotographic apparatus, m... | 10/25/2011 |
| 7672608 | Image forming apparatus An image forming apparatus, including an image forming section which conducts image formation on a sheet based on an image data, a tray which accommodates the sheets to be supplied to the image forming section, a humidity detecting unit which detects humidity inside... | 03/02/2010 |
| 7664422 | Image forming system and sheet humidifying apparatus An image forming system, comprises an image forming section to form an image on a sheet; a fixing section to fix the image formed on the sheet; a sheet conveying passage to convey the fixed sheet; a humidifying roller arranged on the sheet passage and to humidify th... | 02/16/2010 |
| 7657202 | Image forming apparatus and image forming system An image forming apparatus, including an image forming section which forms image on a recording sheet based on image data, plural trays which accommodate the sheets to be supplied to the image forming section, a humidity detecting unit which detects humidity inside ... | 02/02/2010 |
| 7389065 | Image-forming apparatus with vibrating part An image-forming apparatus includes a transfer part that transfers a toner image to a sheet; a fixing part that heats a sheet to which a toner image is transferred by the transfer part to a temperature at which the toner on the sheet melts, and ejects the sheet; a v... | 06/17/2008 |
| 7376368 | Water content determination apparatus, image forming apparatus, control method, and program An image forming apparatus has a water content determination apparatus that can precisely determining a water content in a medium regardless of an environment where the image forming apparatus is installed. The water content determination apparatus has a detection d... | 05/20/2008 |
| 7356277 | Apparatus for cooling an electrophotographic image forming apparatus The present invention provides an image forming apparatus which prevents the rusting of metallic components and paper jams and improves the cooling capability of a heat pipe by ensuring that water droplets do not become adhered to the heat pipe, thereby reducing the... | 04/08/2008 |
| 7336918 | Image forming device having a drum separation device A separation device 16, which is located downstream from a transfer roller in the sheet transport direction, applies a separation voltage to a plurality of separation needles 17 disposed in an alignment orthogonal to the direction of transport of the s... | 02/26/2008 |
| 7233767 | Heating apparatus, sheet feeding apparatus and image forming apparatus A sheet feeding apparatus is provided with a sheet stacking device for stacking sheets thereon, a sheet feeding device for feeding the sheets stacked on the sheet stacking device, and a heating device for heating the sheets stacked on the sheet stacking device. The ... | 06/19/2007 |
| 7177561 | Method and apparatus for regulating dew formation inside an image forming apparatus A method for regulating dew formation on a photosensitive drum in an image forming apparatus comprises detecting the surface temperature of the photosensitive drum, detecting the internal temperature of the image forming apparatus and detecting the internal humidity... | 02/13/2007 |
| 7145675 | Humidity-based printer system control A printer system comprises a communication interface and printer components. The communication interface receives a humidity value from a toner cartridge. The printer components control printing operation based on the humidity value. To control printing operation, t... | 12/05/2006 |
| 7095976 | Heating apparatus, sheet feeding apparatus and image forming apparatus A sheet feeding apparatus is provided with a sheet stacking device for stacking sheets thereon, a sheet feeding device for feeding the sheets stacked on the sheet stacking device, and a heating device for heating the sheets stacked on the sheet stacking device. The ... | 08/22/2006 |
| 7079784 | Wet type electrophotographic image forming apparatus and method for controlling oxidation catalyst device thereof A wet type electrophotographic image forming apparatus includes a photosensitive medium, a light exposure device, a developing device, a transfer device, a fuser device, an oxidation catalyst device, a temperature sensor, a power supply device and a control device. ... | 07/18/2006 |
| 7031633 | Printing apparatus and method with improved control of humidity and temperature A method and apparatus for controlling conditions in a printer that includes a print engine that is operative upon an article to print marks upon the article. Sensors are provided for detecting relative humidity and temperature within a moving air stream in the prin... | 04/18/2006 |
| 7027751 | Electrophotographic image forming apparatus having residual toner collection An electrophotographic image forming apparatus of the present invention includes a photoconductive drum provided with a photoconductive layer on its surface. A charger uniformly charges the surface of the drum while an exposing unit exposes the charged surface of th... | 04/11/2006 |
| 6980751 | Developer humidifier An apparatus for developing a latent image recorded on a movable imaging surface, including: a reservoir for storing a supply of developer material including toner particles; a donor member being arranged to receive toner particles from the reservoir and to deliver ... | 12/27/2005 |
| 6957026 | Dual airflow environmental module to provide balanced and thermodynamically adjusted airflows for a device An electrophotographic marking device includes a xerographic marking module and an environmental control module which controls temperature and relative humidity inside the marking module. The environmental module has a main plenum chamber and a divided or split plen... | 10/18/2005 |
| 6952556 | Heating apparatus, sheet feeding apparatus and image forming apparatus A sheet feeding apparatus is provided with a sheet stacking device for stacking sheets thereon, a sheet feeding device for feeding the sheets stacked on the sheet stacking device, and a heating device for heating the sheets stacked on the sheet stacking device. The ... | 10/04/2005 |
| 6931223 | Electrophotographic image forming apparatus having a humidity control function An image forming apparatus of the present invention includes a charging device having a charging mechanism positioned to face the circumference of a photoconductive drum and a casing member surrounding the charging means. A solid, high-molecular electrolytic film is... | 08/16/2005 |
| 6823151 | Paper tray moisture control A moisture-reducing paper tray including a desiccant that absorbs moisture from the environment of the paper tray and consequently the paper supply itself. As a result, the desiccant may become saturated as moisture is adsorbed. In one embodiment of the invention, t... | 11/23/2004 |
| 6771916 | Air quality management apparatus for an electrostatographic printer An air quality management apparatus for use in a modular electrostatographic color printer. For air quality management a non-air-conditioned open-loop portion is provided for managing quality of air in a first interior volume, and an air-conditioned recirculation po... | 08/03/2004 |
| 6654573 | Paper tray moisture control A moisture-reducing paper tray including a desiccant that absorbs moisture from the environment of the paper tray and consequently the paper supply itself. As a result, the desiccant may become saturated as moisture is adsorbed. In one embodiment of the i... | 11/25/2003 |
| 6542703 | Method for improving the print quality of an image forming apparatus The present invention relates to a method for improving a print quality of an image forming apparatus. The invention provides a method for improving the print quality of an image forming apparatus capable of preventing the deterioration of the print image... | 04/01/2003 |
| 6421508 | System for preventing retransfer of a toner image between an intermediate transfer member and an image bearing member The present invention relates to an image forming apparatus in which voltage is applied to an intermediate transfer body when a toner image is transferred from an image bearing body to the intermediate transfer body, and a controller controls variably a p... | 07/16/2002 |
| 6408144 | Image forming apparatus for operating under the optimum environment condition A facsimile machine performs a printing operation in an optimum environment by detecting the environment of the facsimile machine when it receives a facsimile signal from a remote device. A control circuit assembly (1) of the facsimile machine includes a ... | 06/18/2002 |
| 6400915 | Temperature controlled wet electrophotographic apparatus Disclosed is a wet electrophotographic apparatus, including a temperature measuring device configured to measure the temperature of the image holding surface of an electrophotographic photoconductor and/or the temperature of a liquid developer in a reserv... | 06/04/2002 |
| 6375318 | Heated media input tray for an imaging device A media input tray for an imaging device such as a laser printer is configured to heat media disposed in the tray in order to reduce potential curl of the media caused by image processing in the imaging device. In a preferred embodiment, the input tray is... | 04/23/2002 |
| 6282386 | Transfer-conveyance device and method capable of controlling transfer bias according to change in environmental condition A transfer-conveyance device for transferring a visible image on an image bearing member in an image forming apparatus onto a transfer sheet and to convey the transfer sheet. The transfer-conveyance device includes a contact member that contacts the image... | 08/28/2001 |
| 6167220 | Anti-condensation baffle unit An anti-condensation baffle unit having two members which correspond to each other, which copied paper is transferred between the two members by at least one idler roller, and at least one muffin fan attached to the baffle unit to cool the area surroundin... | 12/26/2000 |
| 6125244 | Image forming apparatus featuring an environmentally responsive voltage switch An image forming apparatus includes of an image bearing member, an image forming unit for forming a toner image onto the image bearing member, a transfer charging unit for transferring the toner image from the image bearing member to a transfer material a... | 09/26/2000 |
| 6031629 | Picture quality stabilizer for a color laser printer In the picture quality stabilizer for a color laser printer, changes in the gray level characteristic and the color balance caused by changes in temperature and humidity are compensated in order to stabilize the reproduced image. The apparatus includes a ... | 02/29/2000 |
| 5970282 | Method of cleaning a surface in an image forming apparatus by feeding toner to the surface In an image forming apparatus of the type including a movable belt and a cleaning blade for cleaning the belt, a toner image on the form of an exclusive line is formed on an image carrier between sheets and the transferred to the belt so as to feed toner ... | 10/19/1999 |
| 5930558 | Heated air blower for reducing humidity absorption in paper A sheet repository having multiple trays and including a fan supported in a housing for receiving ambient air from outside the housing, a heating device within the housing for raising the temperature of the air conveyed by the fan, and a duct system at th... | 07/27/1999 |
| 5920751 | Apparatus and method for controlling moisture and cooling rate for paper curl reduction A device and method for controlling sheet moisture and cooling rate for reducing curl in sheets includes the steps of providing a fuser with the fuser being heated at a predetermined temperature; providing a moisturizer; positioning the moisturizer a pred... | 07/06/1999 |
| 5890033 | Developer housing heater using a centrally heated mixing auger Developer material, in a machine that has been idle in a cold, high relative humidity environment, is moved into an acceptable operating temperature/RH realm by warming the developer as it comes into contact with heated mixing augers. The augers are heate... | 03/30/1999 |
| 5878305 | Electrophotographic printer To provide an electrophotographic printer which can satisfy regulations for exhaust gas emission easily, a printer is provided with a circulation line for taking out and returning gas generated in a casing of the printer, and a heat exchanger, for cooling... | 03/02/1999 |
| 5862437 | Power supply controller for use in an image formation apparatus and method A power supply controller for use in an image formation apparatus includes a first control circuit for controlling the image formation apparatus to form an image, a second control circuit for controlling electric power supplied to the image formation appa... | 01/19/1999 |
| 5832341 | Capture of paper moisture for aquatron replenishment An apparatus, printing machine and method for replenishing an aquatron liquid reservoir in an aquatron charging device. The print media (e.g. paper, vellum, etc.) releases liquid from the print media during fusing. A condenser creates condensate from the ... | 11/03/1998 |
| 5701550 | Method and apparatus for controlling charge on toner in a toning station A substantial change in charge on toner in a development station due to a reduction in relative humidity as the station warms up is compensated for by applying heat from an externaI source to the station when the station has not been warmed up. For exampl... | 12/23/1997 |
