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Class 399/69 - Temperature control


Subclass of Class 399 - Electrophotography
Definition: Subject matter wherein a means or method is provided for
No. of patents: 885
Last issue date: 05/22/2012


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NumberTitleIssue Date
7995944Fusing device and image forming apparatus having the same
A fusing device includes a heating unit which provides heat for fixing toner on paper, a pressure unit which is aligned with the heating unit, and which provides pressure for fixing the toner onto the paper. The fusing device further includes a heat applying unit th...
08/09/2011
7991316Fixing device
There is provided a fixing device 6 including a heating body 22 which has a heating heat generation section 24 subjected to induction heating upon application of alternating magnetic fields generated by a exciting coil 27, a pressure roll...
08/02/2011
7983581Fixing method and fixing device with specified temperature relationships for recording medium
A fixing method and a fixing device is provided in which an unfixed toner image formed on a recording medium is heat-pressure-fixed by using a fixing unit, wherein the unfixed toner image is fixed when the recording medium passes through at least two fixing units ar...
07/19/2011
7983582Image forming apparatus and control method therefor
An image forming apparatus includes an image carrier, a developing unit, a transfer unit, and a fixer to fix an image formed on a sheet and includes a rotary heat generator including a heat generation layer, a pressure member to form a nip with the rotary heat gener...
07/19/2011
7970309Image forming apparatus including a power-control feature for flicker suppression
The image forming apparatus includes an image forming part, a fixing part including a heater and a temperature detection element; and a power-control part that controls power to be supplied to the heater according to the detection temperature of the temperature dete...
06/28/2011
7965955Image forming apparatus
An image forming apparatus is operable in a speed priority mode in which a temperature range that permits a fixing operation via a pressure belt is wide and an image-quality priority mode in which a temperature range that permits a fixing operation via the pressure ...
06/21/2011
7957661Control of overheating in an image fixing assembly
An image fixing assembly includes a heating unit having a heating element and a fusing member enclosing the heating element; a backup member; and a heat conducting member. The fusing member is configured to rotate around the heating element. Further, the fusing memb...
06/07/2011
7957662Fixing apparatus and image processing apparatus
According to an embodiment, a heating device having a plurality of heating members which heat the heating roller, a first thermoelectric converting section having a plurality of thermoelectric converting elements, each of which has a heat-absorbing surface and a coo...
06/07/2011
7957663Heater, fixing unit and image forming apparatus
A heater is operable with a main power supply unit and a chargeable auxiliary power supplying unit. The heater includes a heater part having one or a plurality of heater elements to receive power from the main and auxiliary power supplying units, a detecting part to...
06/07/2011
7949274Fixing apparatus and temperature control method
In a fixing apparatus having a first roller which includes a first heater and a second heater arranged in difference ranges from each other in the direction of rotation axis and an auxiliary heater arranged in a range including the ranges where the first and second ...
05/24/2011
7949273Fixing device, fixing device temperature control method and image forming apparatus
A fixing device has a heating roller and a pressurizing belt which convey the a recording material in mutual contact while fixing a toner on the recording material, a heater which heats the heating roller, a noncontact first thermister which detects a surface temper...
05/24/2011
7945181Fixing device, image forming apparatus, and fixing-device control method
In a fixing device, a fixing unit fixes a toner image transferred onto a recording medium by a heating target unit heated by a plurality of heating units each of which is grouped as a first heating unit to which power is selectively supplied or a second heating unit...
05/17/2011
7941066Image heating device with duct for air blowing and suction
An image forming apparatus comprising a heating rotating body which heats a toner image while nipping and conveying a recording material bearing the toner image, a fan which cools down the heating rotating body, and a duct adapted in such a manner that air which is ...
05/10/2011
7933530Fuser assembly fan control
A printer is provided including a reference edge, a fuser assembly, a cooling apparatus and a controller. The reference edge is adapted to be contacted by a substrate as the substrate moves along a substrate path through the printer. The fuser assembly includes a he...
04/26/2011
7933529Image forming apparatus, method for controlling image forming apparatus, fixing apparatus
An image forming apparatus includes a fixing apparatus for fixing a toner image onto a recording medium by applying pressure and heat to toner provided on the surface of the recording medium. The fixing apparatus includes a fixing member, a pressing member for press...
04/26/2011
7920802Heating control device, fixing device, image forming apparatus, heating control method, and computer program product
A fixing device fixes an image on a recording medium by allowing the recording medium to pass through a nip between a pair of rotating members at least one of which is heated. The fixing device includes heaters that heat rotating members, temperature sensing element...
04/05/2011
7912392Image forming apparatus with glossy image printing mode
An image forming apparatus includes an image forming part, a fixer including a heating member and a pressure member, a reverse transport part to forward a recording medium transported from the fixer to the image forming part, a toner image sensor to detect presence ...
03/22/2011
7912391Image-heating device with a first heating member and an adjustable second heating member
An image-heating device has a detector for detecting the state of a recording medium at a position between a first fixing unit and a second fixing unit along a conveying path of the recording medium and a controller for controlling a fixing condition of the second f...
03/22/2011
7907861Image heating apparatus for heating an image on a recording material to different temperatures in different modes
An image heating apparatus includes a heating rotatable member for heating, in a nip, an image on a recording material; a heater for heating the image heating member; a cooling device for cooling the image heating member, wherein when a target temperature of the ima...
03/15/2011
7899350Fixing device and image forming apparatus using the same
A fixing device including a fixing member to melt a toner so as to fix a toner image onto a recording medium, a temperature sensor to detect a temperature of the fixing member, and a heater to heat the fixing member based on the temperature detected by the temperatu...
03/01/2011
7894735Fixing device of image forming apparatus
The fixing device of the image forming apparatus of the present invention is provided with a heat transfer probe which contacts the heat roller and a surface temperature of the heat roller is transferred thereto. The erroneous detection of the surface temperature of...
02/22/2011
7890008Image forming apparatus and recording medium on which interrupt control program is recorded
An image forming apparatus is provided having a fixing device which heats a fixing roller from the surface thereof by means of an external heating device, which image forming apparatus is capable of improving fixability immediately just after a start-up and enhancin...
02/15/2011
7890010Fixing device for color image forming apparatus and control method
A fixing device switches ON a heater lamp of the press roller in a fixing device in a color print mode. In a monochromatic mode, power comparable to the power consumption of the heater lamp can be supplied additionally to an exciting coil on the heat roller side whe...
02/15/2011
7890009Image forming apparatus with a presence or absense sensor
The image forming apparatus has a heat member for heating an unfixed image and is configured so that a longitudinal center of the heat member becomes a conveyance center of the recording material, the image forming apparatus including a central portion temperature d...
02/15/2011
7885567Printing apparatus and a method of controlling a power supply to a heating roller and to a phase control circuit
A method and an apparatus to control power supplied to a heating roller and a phase control circuit corresponding to the method or the apparatus. The phase control circuit may include an examination unit to compare levels of a sine wave having a predetermined first ...
02/08/2011
7885568Image forming device with improved fixing temperature control and method
An image forming device that uses only one temperature sensor to detect temperatures of the recording sheet and a rotation member for fixing, and can perform the temperature adjustment control carefully in detail during the image forming operation. The CPU 61...
02/08/2011
7885569Heater, fixing unit and image forming apparatus operable with a main and auxiliary power supply unit
A heater operable with main and auxiliary power supply units. A controller selects a first mode to permit discharge of the auxiliary power supply unit when a voltage or power from the auxiliary power supply unit is a startable value or greater without making referen...
02/08/2011
7881630Temperature control device, temperature control method, fixing device, image forming apparatus, temperature control program, computer-readable recording medium, and computer data signal
The present invention carries out temperature detection and temperature control accurately in a temperature control device using a noncontact-type temperature detecting section. The temperature control device obtains the surface temperature of a fixing roller by usi...
02/01/2011
7881631Fixing unit and fixing temperature control method
An image forming apparatus contains an image forming section; a fixing unit configured to heat the toner image by a heater to fix on the sheet; a power source section; an acquisition section configured to acquire a voltage value of the input power source; a sensor c...
02/01/2011
7873293Image heating apparatus and heater for use in image heating apparatus
The heater includes an elongated substrate, two electrodes disposed along a longitudinal direction of the substrate, and a heat generation resistive member connected between the two electrodes. The heat generation resistive member is formed on the substrate by one o...
01/18/2011
7869730Image forming apparatus heat control
An image forming apparatus and method includes a controller to set a reference fusing temperature according to the print pattern of an input image received from an image input unit. The input image is converted to bitmap data to recognize the print pattern. The refe...
01/11/2011
7865100Fixing apparatus and image forming apparatus
A paper separation claw is separated from a surface of a pressure roller by a drive source being turned ON at a time t2 before commencement of rotation of the pressure roller, and the paper separation claw is made to contact the surface of the pressure roller...
01/04/2011
7865101Fusing system and control method thereof
A fusing system includes: a fusing unit which comprises a fusing belt which rotates around outer surfaces of at least two rollers which are distanced from each other, and a pressing roller which presses a printing medium together with the fusing belts and fuses an i...
01/04/2011
7860418System and method for cooling a roller having multiple heating zones
A printer includes a system for cooling an image receiving member. The image receiving member cooling system includes an image receiving member having a first end and a second end, a first heater mounted within the image receiving member for heating the image receiv...
12/28/2010
7853165Apparatus and method for a multi-tap series resistance heating element in a belt fuser
A segment and heater fuser roll is disposed for a printing device including a plurality of heating elements in a preselected order relative to a voltage return. A plurality of voltage taps are disposed for applying selected power to ones of the plurality of heater e...
12/14/2010
7853164Image forming apparatus and power control method
A plurality of heating units generates a heat by an alternating-current power supplied from a corresponding alternating-current power supply unit through a corresponding input terminal and supplying the heat to a fixing unit that fixes a toner image transformed on a...
12/14/2010
7840150Image forming apparatus having a plurality of heating devices for heating recording sheet
An image forming apparatus has: a first heating device which heats recording sheet formed with a developer image; a cooling device which cools the recording sheet passing through the first heating device; a second heating device which heats the recording sheet coole...
11/23/2010
7831164Fuser with gloss feedback control
A method of controlling gloss in a printing system having a fuser. The method includes: creating a gloss look-up table for temperature settings; using the look-up table for temperature settings to determine a desired gloss range; measuring an actual gloss range on a...
11/09/2010
7831165Fixing device and image forming apparatus equipped with the fixing device
Provided is a fixing device including: a first mode which is a combination mode of the heating of the heating belt and the rotation stop of the heating belt and a second mode which is a combination mode of the heating of the heating belt and the rotation of the heat...
11/09/2010
7831163Heat device and image forming apparatus including the same
Provided is a heat device which heats and fixes a developed image onto a recording material while nipping and conveying the recording material bearing the developed image by a nip portion, in which even when a turn-on duty ratio between at least two heat generation ...
11/09/2010
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