| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 399093000 | Having filtering (e.g., ozone removal) | 34 |
| 20080219695 | OZONE REMOVAL DEVICE, IMAGE FORMING APPARATUS HAVING THE SAME, AND METHOD FOR REMOVING OZONE - A color laser printer is provided with a first exhaust duct for exhausting ozone generated by a charging unit etc. inside a housing to the outside of the housing. The first exhaust duct is therein provided with a catalytic honeycomb filter for ozone gas treatment and an ion emitting unit for emitting negative ions into an atmosphere. Most of an ozone gas component is decomposed and/or absorbed by the catalytic honeycomb filter for ozone gas treatment. Furthermore, the residual ozone gas component is decomposed by the negative ions generated by the ion emitting unit. This arrangement makes it possible to provide a new ozone removal device which is different from an ozone decomposing filter or a heat source. | 09-11-2008 |
| 20090010673 | FILTER AND METHOD OF MANUFACTURING THE SAME - The present invention provides a filter structure manufacturable through fewer steps and at lower cost by using inexpensive materials and general techniques for processing while maintaining accuracy of the production of clearances that determines filtering performance and a method of manufacturing the filter structure. The filter structure according to the present invention comprises a base plate, a first intermediate layer, a second intermediate layer and a cover. The first intermediate layer has a first flow channel and a second flow channel with predetermined widths and depths, and the second intermediate layer has a third flow channel with a predetermined width and depth. The third flow channel communicates with the first flow channel and also with the second flow channel, and the maximum depth of the third flow channel is smaller than the minimum depths of the first flow channel and the second flow channel. Accordingly, the production accuracy for the clearances which determines the filter performance can be highly maintained by utilizing the thickness of the second intermediate layer. | 01-08-2009 |
| 20090290897 | VOLATILE CHEMICAL SUBSTANCE CATCHING DEVICE AND ELECTRONIC APPARATUS - A color multifunction printer of the present invention includes a volatile chemical substance catching device, provided in an exhaust duct provided above a fixing unit, which generates an electric field in an atmosphere with use of an electric-field generating and catching member, which attracts volatile chemical substances contained in the atmosphere to a surface of the electric-field generating and catching member by the action of the electric field, and which catches the volatile chemical substances. This makes it possible to realize a volatile chemical substance catching device and an electronic apparatus that hardly suffer from aged deterioration in performance and can catch volatile chemical compounds such as VOCs and odors over a long period of time. | 11-26-2009 |
| 20100183327 | IMAGE FORMING APPARATUS - An image forming apparatus according to one embodiment of the present invention is an image forming apparatus that prints an image on a recording paper, and is provided with an ion generating means that is attached at an outer side of the image forming apparatus main unit, and generates and emits ions, and an emission direction varying means that varies an emission direction of ions from the ion generating means in response to whether the image forming apparatus is operating or in standby. | 07-22-2010 |
| 20100202795 | XEROGRAPHIC MACHINE TONER CONTAMINATION CONTROL SYSTEM - This is a toner control system for use in a cleaning station of a xerographic marking apparatus. A sensor is located in the air conduits of the system to measure airflow throughout the system. The sensor is in contact with a controller that is configured to adjust the blower speed to normal conditions (i.e. sea level and clean filter conditions) as the flow rate is reduced due to normal apparatus use. The system has an air blower(s), a filter(s), air conduits, a sensor(s) and a controller(s) in communication with the sensor(s). | 08-12-2010 |
| 20110081161 | CHARGING DEVICE AND IMAGE FORMING APPARATUS - A charging device is provided. A charging device includes a charging section and a discharge product adsorption removal section. The charging section includes a shield case having a shield opening, a discharge electrode, and a rotation shaft which is parallel to a rotation axis of a photoreceptor. The discharge product adsorption removal section has an adsorption layer that adsorbs a discharge product and is disposed downward in a vertical direction of the photoreceptor. The charging section is displaceable about an axial line of the rotation shaft from a position where the shield opening opposes to the photoreceptor to a position where the shield opening opposes to the discharge product adsorption removal section. | 04-07-2011 |
| 20110085819 | IMAGE FORMING APPARATUS - In an image forming apparatus, exhaust fans of a ventilation device and an intake port of an air purifier are provided on side wall portions respectively that are opposite each other in a main casing of the image forming apparatus, and the exhaust fans of the ventilation device are provided in a location higher than the intake port of the air purifier. With this configuration, silicone that is discharged from the exhaust fans of the ventilation device is almost never suctioned into the intake port of the air purifier, such that almost none of this silicone adheres to a discharging electrode of the ion generator, and an ion generating efficiency of the ion generator can be maintained over a long period without dropping. | 04-14-2011 |
| 20110103820 | Image Forming Apparatus - An image forming apparatus includes an image forming unit configured to form an image on a recording medium, wherein a first gas is generated during image formation, and a fixing unit configured to fix the image onto the recording medium by heat, wherein a second gas is generated during image fixing by heat. A body includes a chamber and an opening through which the first gas and the second gas are guided into the chamber to be mixed into a gas mixture. A fan discharges the gas mixture from the chamber. | 05-05-2011 |
| 20110103821 | Image Forming Apparatus Having a Detachable Toner Particle Collecting Unit - An image forming apparatus including, a first air flow duct for guiding air including flying toner particles created in the image forming apparatus, a second air flow duct having a fan for exhausting cleaned air to an exterior of the image forming apparatus, and a toner particle collecting unit arranged between the first air flow duct and the second air flow duct, the toner particle collecting unit includes a cyclone separator including a cyclone main body, an air flow inlet, and an outlet tube,
| 05-05-2011 |
| 20110142482 | SHEET FEEDING DEVICE AND IMAGE FORMING APPARATUS - A sheet feeding device includes a sheet tray, a main body, an ion generating device, a first duct, a second duct, and a fan. The main body is designed to accommodate therein the sheet tray in a state capable of being drawn out toward the front. The ion generating device is disposed on a rear side of the sheet tray in the main body and has an ion generating function. The first and second ducts are disposed in such a manner as to cover the ion generating device and are designed to define a flow path for guiding air taken therein from outside the main body to outside the main body again. | 06-16-2011 |
| 20110142483 | IMAGE FORMING APPARATUS - An image forming apparatus includes a cylindrical or annular fixing member, an outer surface of which is brought into pressure contact with a conveyed sheet to fix an image onto the sheet; and a heating source for heating the fixing member to a specified target temperature. The fixing member includes a cylindrical or annular base material, a rubber layer with elasticity, and an outer layer for aiding release of the sheet. An end portion of the rubber layer and an end portion of the outer layer are each positioned inner than an end portion of the base material with respect to a width direction perpendicular to a circumferential direction on the base material. A filter member capable of trapping ultra fine particles generated from the rubber layer is provided on the base material in a position facing the end portion of the rubber layer along the circumferential direction. | 06-16-2011 |
| 20110211859 | IMAGE FORMING APPARATUS - An image forming apparatus includes a fixing member having a cylindrical or annular shape for fixing an image onto a sheet which is in pressure contact with an outer surface thereof; and a heating source for heating the fixing member to a fixing temperature. A duct is provided in a position facing the fixing member with respect to a width direction perpendicular to a circumferential direction of the fixing member and which has an inlet for taking in fine particles generated from the fixing member. An exhaust fan is provided inside the duct or in an outlet of the duct for generating an air flow going from the inlet to the outlet of the duct. A first filter member is provided upstream or downstream from the exhaust fan inside the duct and the first filter can trap the fine particles which flow through the duct getting on the air flow. A control section controls an amount of the air flow passing through the first filter member according to initial burst conditions under which the fine particles are emitted from the fixing member. | 09-01-2011 |
| 20110211860 | IMAGE FORMING APPARATUS - An image forming apparatus includes a fixing member having a cylindrical or annular shape for fixing an image onto a sheet which is in pressure contact with an outer surface thereof; and a heating source for heating the fixing member to a fixing temperature. A duct is provided in a position facing the fixing member with respect to a width direction perpendicular to a circumferential direction of the fixing member and which has an inlet for taking in fine particles generated from the fixing member. A filter member is provided inside the duct and which can trap the fine particles which flow through the duct. An exhaust fan is provided in the duct upstream or downstream from the filter member for generating an air flow going from the inlet to an outlet of the duct. A control section controls the operation of the exhaust fan according to initial burst conditions under which the fine particles are emitted from the fixing member. | 09-01-2011 |
| 20110217066 | IMAGE FORMING DEVICE HAVING EXHAUST CHANNEL FOR EXHAUSTING AIR OUT OF THE DEVICE - An image forming device includes a main casing, a process unit, a fixing unit, and a duct. The duct is disposed between the process unit and the fixing unit with respect to a direction in which a recording medium is conveyed. The duct defines an exhaust channel for exhausting air out of the main casing. The duct includes at least two partitioning walls extending in a second direction intersecting with the first direction, and is formed with at least three inlet ports partitioned by the partitioning walls in the first direction. | 09-08-2011 |
| 20120070182 | Smell dilution unit and electrophotographic image forming apparatus including the same - A smell dilution unit includes: a blower fan; a duct which guides an external air introduced from the blower fan; and a deodorization unit which contains a smell masking agent and allows an odor of the smell masking agent to be mixed with the external air introduced from the blower fan. Since the deodorization unit containing the smell masking agent, which is replaceable, is installed in the duct, the smell dilution unit may dilute an unpleasant smell generated during printing. | 03-22-2012 |
| 20120177396 | EMISSION CONTROL FOR AN ELECTROPHOTOGRAPHIC PRINTER - An electrophotographic apparatus includes a photoconductor; a charging device for placing a uniform charge on the photoconductor; an image writer for writing an image on the charged photoconductor; a developer station for developing the image with toner; a transfer station for transferring the toned image to a receiver; a fixing unit for fusing the image to the receiver; environmental control system for removing airborne contaminants from the electrophotographic apparatus; the environmental control system includes a catalytic filter; and ozone is added prior to the catalytic filter when the contaminant is formaldehyde. | 07-12-2012 |
| 20120177397 | METHOD OF CONTROLLING EMISSIONS IN AN ELECTROPHOTOGRAPHIC PRINTER - A method for removing contaminants generated by an electrophotographic apparatus includes placing a uniform charge on a photoconductor; writing an image on the charged photoconductor; developing the image with toner; transferring the toned image to a receiver; fusing the image to the receiver; and removing airborne contaminants from the electrophotographic apparatus. | 07-12-2012 |
| 20130058677 | ACTIVE OZONE SCRUBBER - An Active Ozone Scrubber includes a low profile thick film device. The low profile thick film device is composed of films layered upon each other and built on a ceramic substrate. Each layer is screened upon the next with the active elements strategically placed in order to develop corona when energized. When activated, the corona developed within the channels of the upper layer creates heat and accelerates the chemical reaction with the ozone, thereby reducing the amount of Ozone ozone generated by a conventional charge/discharge system before it is exhausted by a machine into the environment. | 03-07-2013 |
| 20130101311 | IMAGE FORMING APPARATUS AND TRAPPING DEVICE - An image forming apparatus includes a housing, an image forming section, an air passage that is disposed so as to be movable between a first position and a second position, the air passage having an interior through which air is allowed to flow while the air passage is in the first position, a trapping member that is mountably and dismountably disposed in the interior of the air passage, the trapping member trapping an object contained in the air flowing through the interior of the air passage, and a mounting system that mounts the trapping member, which is not completely mounted in the interior of the air passage, in the interior of the air passage by an operation of moving the air passage from the second position to the first position. | 04-25-2013 |
| 20130243471 | IMAGE FORMING APPARATUS - An image forming apparatus having; a fusing unit that heats and presses a recording medium with an image transferred thereto, thereby fixing the image thereon; a first duct section in which air that contains emissions generated by the fusing unit flows; an ion generation unit provided away from the first duct section to generate ions; a second duct section in which air that contains the ions generated by the ion generation unit flows; a third duct section connected to the first and second duct sections, such that air flows in from the first and second duct sections, whereby the emissions are charged by the ions; a filter unit provided in the third duct section to trap the charged emissions; and a blowing unit that generates air flows from the connections with the first and second duct sections in the third duct section toward the filter unit. | 09-19-2013 |
| 20130322914 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image forming section, a paper supply section, a housing member and an ion generating unit. The housing member is disposed at least below the image forming section, and gives the same shape in plane view as the image forming section and the paper supply section. The ion generating unit is contained in the housing member. The ion generating unit includes a duct forming a pathway of flow to guide the air that is sucked in from outside of the housing member again to outside of the housing member, an ion generating device disposed inside the duct, and a fan for generating an air current in the duct. | 12-05-2013 |
| 20140147162 | SUSPENDED PARTICLE COLLECTING MEMBER AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A collecting member that collects suspended particles vaporized from wax includes a flow path and a space, where gas passes along the flow path. The space is connected to the flow path through an opening formed in the flow path. The space extends upstream with respect to a direction of travel of the gas that passes along the flow path. By virtue of this structure, dew condensation in a fixing unit is suppressed while efficiently collecting the suspended particles. | 05-29-2014 |
| 20140161482 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image forming section, a paper supply section, a housing member and an ion generating unit. The housing member is disposed at least below the image forming section, and gives the same shape in plane view as the image forming section and the paper supply section. The ion generating unit is contained in the housing member. The ion generating unit includes a duct forming a pathway of flow to guide the air that is sucked in from outside of the housing member again to outside of the housing member, an ion generating device disposed inside the duct, and a fan for generating an air current in the duct. | 06-12-2014 |
| 20140186069 | Charging Device Configured to Produce Corona Discharge - A charging device includes a discharging electrode, grid electrode, pair of shielding electrodes, frame, airflow-generating electrode, and impurity-removing member. The discharging electrode produces a corona discharge to charge a surface of photosensitive member. A first voltage is applied to the grid electrode. The discharging electrode is positioned between the shielding electrodes. The frame includes a pair of side walls confronting with each other in the moving direction. The discharging electrode and the pair of shielding electrodes are positioned between the side walls. The airflow-generating electrode is disposed at a position opposite to the discharging electrode with respect to the grid electrode. The airflow-generating electrode is applied with a second voltage lower than the first voltage. The impurity-removing member is provided on an inner surface of the frame. The impurity-removing member and the airflow-generating electrode are positioned on an identical side of the shielding electrodes in the moving direction. | 07-03-2014 |
| 20140241750 | FILTER ON TOP OUTPUT BIN OF A PRINTER - A filter on top output bin of a printer is consisted of a box wherein a chamber inside of a box, filtering exit on the top of the box, sealing strips sealed along the edge of the filtering exit, filtering entrance under the box, anti-paper jam strips bored on two literal side of the filtering entrance, and an opening bored on a literal side of the box, a filtering net inside of the box is surrounded by frames, and electrostatic filter attached on the top of the filtering net. The filter can be placed on the top output bin on the printer, or be supported the box by having flexible holder adapted to a variety printer. The output papers won't be impacted into the filtering net by having anti-paper jam strips therefore filter can absorb toner emissions and odor so as to clear the air. | 08-28-2014 |
| 20140294427 | TONER COLLECTOR AND IMAGE FORMING APPARATUS INCLUDING SAME - A toner collector includes a housing, an inlet port, a fan, a discharge port, a first upstream side filter, and a downstream side filter. The inlet port is opened in the housing. The fan is disposed in the housing, and intakes and discharges the airflow having flowed in through the inlet port. The discharge port is provided to the fan. The first upstream side filter is disposed on an upstream side of the fan in a direction of the airflow, and captures the toner and allows passage of the airflow. The downstream side filter is disposed on a downstream side of the discharge port in the direction of the airflow, and allows passage of the airflow discharged from the discharge port and captures the toner. The downstream side filter has a larger cross-sectional area of a cross section perpendicular to the direction of the airflow than the discharge port. | 10-02-2014 |
| 20140321878 | IMAGE FORMING APPARATUS AND EXHAUST DUCT - An image forming apparatus includes a filter and an exhaust duct. The filter filters and ejects an air. The exhaust duct flows and ejects the air to the filter. The exhaust duct also includes a plurality of partition plates alternately arranged along an exhaust direction on one side inner face and another side inner face facing to each other. The plurality of the partition plates has the partition plate formed so as to incline in an opposite direction to the exhaust direction. | 10-30-2014 |
| 20140363192 | IMAGE FORMING APPARATUS - An image forming apparatus including an apparatus main body including an inner wall that defines an accommodation portion, photoconductive drums arranged in parallel at intervals in a predetermined direction toward a first side from a second side, in the accommodation portion, chargers disposed corresponding to the photoconductive drums, respectively, each charger charging a corresponding one of the photoconductive drums, a frame body configured to support the photoconductive drums and the chargers and be accommodated in the accommodation portion, a regulating member disposed between the inner wall and a first-side end portion of the frame body in the predetermined direction, the regulating member configured to apply an urging force to the frame body and regulate an air current, and a pressing member configured to press the frame body against the urging force of the regulating member and regulate a movement of the frame body relative to the apparatus main body. | 12-11-2014 |
| 20150023686 | IMAGE FORMING APPARATUS - An image forming apparatus is provided with an image forming portion, a collecting duct, a toner collecting device, a toner collecting device, and a first control portion. Into the collecting duct, unnecessary toner generated in the image forming portion flows together with an airflow. The toner collecting device communicates with the collecting duct, has a path of the airflow formed therein, and collects, by using a filter, the toner together with the airflow generated by an airflow generating portion. The first control portion controls an operation condition of a vibrating operation of a vibrating portion that vibrates the filter, in accordance with at least one of setting conditions relating to environment of the image forming portion, a coverage rate of a toner image, the number of printed sheets, and an image density of the toner image. | 01-22-2015 |
| 20150030348 | IMAGE FORMING APPARATUS - An image-forming apparatus comprising a fuser assembly including a heating roller and a pressure roller for fixing a non-fixed image on paper, a duct located in the vicinity of the fuser assembly in parallel to an axis line of the heating roller, an exhaust outlet located on a first side wall of the duct at the fuser assembly side, wherein the exhaust outlet is provided to connect the fuser assembly and the duct, and a plane filter detachably attached to an inside wall of the duct in parallel to the inside wall. | 01-29-2015 |
| 20150316891 | IMAGE FORMING APPARATUS - An image forming apparatus having: a filter member configured to trap particles floating in the apparatus; a suction section configured to suck air including the particles at a variable suction rate; a determiner configured to determine the suction rate of the suction section; an exhaust path capable of leading the air sucked by the suction section to outside of the apparatus through the filter member; a circulation path capable of allowing the air sucked by the suction section and passing through the filter member to circulate inside the apparatus; a switching member configured to make switches between the exhaust path and the circulation path; and a control unit configured to control at least the suction section and the switching member. The control unit allows the switching member to open the exhaust path only when the suction rate determined by the determiner is equal to or less than a predetermined value. | 11-05-2015 |
| 20160059173 | GAS PURIFICATION DEVICE AND IMAGE FORMING APPARATUS - A gas purification device includes an inflow port provided in an upper part of the gas purification device in a gravitational direction so that gas flows therein, a removing member that removes powder contained in the gas when the gas passes through the removing member, the removing member being disposed at a position such as not to overlap with the inflow port when viewed from above in the gravitational direction, and an outflow port provided in a lower part of the gas purification device in the gravitational direction so that the gas flows out therefrom after passing through the removing member. | 03-03-2016 |
| 20160077488 | IMAGE FORMING APPARATUS - An image forming apparatus has a function to clean exhaust air from inside and to discharge cleaned air. The image forming apparatus has an exhaust air duct configured to guide internal air to outside, and a cleaning filter configured to clean air passing through the exhaust air duct. A cubic measure of an airflow path in the exhaust air duct during normal operation has a first value, and the cubic measure of the airflow path in the exhaust air duct during operation causing a large amount of harmful matters to be contained in the exhaust air from inside has a second value greater than the first value. | 03-17-2016 |
| 20160124384 | IMAGE FORMING APPARATUS, AND TONER COLLECTING CASE FOR USE IN IMAGE FORMING APPARATUS - In an image forming apparatus, a dust collecting unit is disposed in the front side of image forming units. The dust collecting unit includes a dust collecting box and a fan. The dust collecting box is communicated with developer cases. The fan sucks air in the dust collecting box and discharges the air. The fan sucks air that has passed through a filter in the dust collecting box and discharges the air to an exhaust duct. The exhaust duct is disposed between a toner container and a fixing device and forms an air passage that extends in a front-rear direction to reach an opening portion provided in the rear side. The air is discharged to an outside of the apparatus from the opening portion. | 05-05-2016 |
