U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 399/70 - Warmup or standby mode


Subclass of Class 399 - Electrophotography
Definition: Subject matter wherein the temperature of a fixing unit
No. of applications: 160
Last issue date: 05/03/2012


1        
Application No.Application TitleIssue Date
20120107006FIXING DEVICE AND IMAGE FORMING APPARATUS WITH THE SAME
A fixing device is provided with a fixing unit for fixing a toner image; a magnetic flux generator including a switching element for generating a magnetic flux; and a control unit for performing a start-up mode for raising the temperature of the fixing unit to a fixing ...
05/03/2012
20120107005IMAGE FORMING APPARATUS AND METHOD FOR FORMING TONER IMAGE ON RECORDING MEDIUM
An image forming apparatus for performing a copier job and a printer job includes a controller operatively connected to a fixing rotary body heater and a pressing rotary body heater to control the fixing rotary body heater and the pressing rotary body heater. The contro...
05/03/2012
20120051766FIXING DEVICE AND IMAGE FORMING APPARATUS
A fixing device includes a fixing rotation body heating and fixing an unfixed image onto a recording medium; a pressing rotation body pressing the recording medium to the fixing rotation body; a first temperature detection unit detecting a temperature of the fixing rota...
03/01/2012
20120045241FIXING DEVICE, IMAGE FORMING APPARATUS INCORPORATING SAME, AND FIXING METHOD
A fixing device includes a temperature controller that controls a temperature of a fixing rotary body based on the temperature of the fixing rotary body detected by a temperature detector so as to heat the fixing rotary body to a plurality of preset target temperatures ...
02/23/2012
20120045226FIXING DEVICE AND IMAGE FORMING APPARATUS
A fixing device includes a fixing rotation body heating and fixing an unfixed image onto a recording medium; a pressing rotation body pressing the recording medium to the fixing rotation body; and a temperature detection unit detecting a temperature of the pressing rota...
02/23/2012
20120020690FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
A fixing device includes a fixing rotary body and a pressing member each of which includes a waveform elastic layer having at least one wave crest and at least one wave trough to form a waveform face between the fixing rotary body and the pressing member pressed against...
01/26/2012
20120002990IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
Certain embodiments provide an image forming apparatus comprising an image forming part, a detection part, an arithmetic part, a storage device and an image quality maintaining control part. The image forming part forms an image quality maintaining adjustment pattern on...
01/05/2012
20110311256FIXING DEVICE
In a fixing device for electrophotography, a fixing sheet carrying thereon a toner image is passed under application of heat and pressure between a toner heating member and a press roller to fix the toner image onto the a fixing sheet. The fixing device is so controlled...
12/22/2011
20110311255IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
According to one embodiment, an image forming apparatus includes an image forming portion, a fixer, a control operation selection portion which selects any one of a monochrome control operation of keeping the fixing temperature at a first temperature at which a monochro...
12/22/2011
20110311258IMAGE FORMING APPARATUS WITH STANDBY AND POWER SAVING MODES
An image forming apparatus, for which a heated roller fixing device is employed but for which a savings in power can still be obtained, is provided. The image forming apparatus includes: a fixing device, which is a heated roller fixing device that requires pre-heating i...
12/22/2011
20110311257IMAGE FORMING APPARATUS, CONTROL METHOD, AND RECORDING MEDIUM
An embodiment provides an image forming apparatus including: a job acquiring unit that acquires an image forming job that gives instructions for performing forming of an image; an image forming process control unit that controls performance of the image forming job that...
12/22/2011
20110305476FIXING APPARATUS AND IMAGE FORMING APPARATUS
A fixing apparatus includes a hot roller, a fixing roller, a fixing belt that extends between the fixing roller and the hot roller and revolves, a pressure roller that is pressed against the fixing roller via the fixing belt, and forms a nip region between the pressure ...
12/15/2011
20110287358FIXING DEVICE
A fixing device includes a fixing belt including a metal layer, a pressing member to form a nip between the pressing member and the fixing belt, an induction current generating coil that faces an outer periphery of the fixing belt, and heats the fixing belt located at a...
11/24/2011
20110262169POWER CONTROL METHOD AND APPARATUS TO HEAT A HEATING ROLLER
A power control method and apparatus to heat a heating roller includes heating a heating roller provided to fix a toner image of print data in an image forming apparatus, the heating roller having a heating resistor to receive roller power. The power control method incl...
10/27/2011
20110262168FIXING DEVICE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD
According to one embodiment, a fixing device includes: a heating roller including a heat generating member on the inside; a pressing roller arranged to be opposed to the heating roller across a recording medium conveying path; a first temperature sensor configured to de...
10/27/2011
20110262159Image Forming Device
An image forming device comprising a fixing unit for thermally fixing a developer on a recording sheet, a control unit that controls the temperature to maintain the fixing unit at one of a fixing temperature and a stand-by temperature lower than the fixing temperature, ...
10/27/2011
20110243594IMAGE FORMING APPARATUS AND IMAGE FORMING APPARATUS OPERATION METHOD
Upon recovery from a power-saving mode to a normal mode and then restart of fixing temperature control from a state in which the fixing temperature control is stopped, a control part (display control part 10 obtains a current temperature of a fixing part based on...
10/06/2011
20110236048IMAGE FORMING APPARATUS
An image forming apparatus is provided. The image forming apparatus includes an image forming section, an intermediate transfer section, a secondary transfer section, a fixing section, a power source, a voltage detection section, a temperature detection section, and a f...
09/29/2011
20110217063FUSER AND TEMPERATURE CONTROL METHOD OF FUSER
According to one embodiment, a fuser including a heating section which heats a hot-melt visualizing material fixed to a sheet medium and the sheet medium, a heat generator which increases the temperature of the heating section in accordance with supply of power, a tempe...
09/08/2011
20110188876IMAGE FORMING DEVICE
An image forming device includes an image forming section that forms toner images on paper, a fixer that fixes the toner images to the paper through heating, and a controller that changes a reference value for a warm-up control of the fixer according to a connection sta...
08/04/2011
20110158672FUSING DEVICE, IMAGE FORMING APPARATUS HAVING THE SAME, AND CONTROL METHOD THEREOF
An induction heating type fusing device to reduce the size of an induction coil and an image forming apparatus having the same, and a control method thereof. The image forming apparatus includes a printing device to form an image on a recording medium, and a fusing devi...
06/30/2011
20110150518FIXING DEVICE AND IMAGE FORMING APPARATUS
The fixing device using an electromagnetic induction heating (IH) method includes a fixing sleeve having a heating layer, a pressure roller to form a nip while contacting the fixing roller and rotate to drive the fixing sleeve, a temperature detector to detect a tempera...
06/23/2011
20110142476IMAGE FORMING APPARATUS
An image forming apparatus includes a fixing device; a mode selecting unit for selecting one of a normal mode and a power save mode; and a fixing control unit. The fixing device includes a rotational member, a pressing member disposed to press against the rotational mem...
06/16/2011
20110135335PRINTING APPARATUS, PRINTING APPARATUS CONTROL METHOD, AND STORAGE MEDIUM
An image forming apparatus having an image forming unit and a fixing unit. The image forming unit may form an image on a sheet based on image data by using a recording agent. The fixing unit may fix the recording agent on the sheet. The image forming apparatus may inclu...
06/09/2011
20110135334FIXING DEVICE AND IMAGE FORMING APPARATUS
An invented fixing device having a fixing roller for fixing developer to a recording medium and plural fixing heaters for heating the fixing roller includes a temperature detection unit as well as a thermistor for detecting the temperature of the fixing roller, a RAM st...
06/09/2011
20110091233APPARATUS AND METHOD OF CONTROLLING POWER SUPPLY TO HEATING ROLLER AND PHASE CONTROL CIRCUIT CORRESPONDING TO THE APPARATUS AND METHOD
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 peri...
04/21/2011
20110085813SWITCHING MODE POWER SUPPLYING APPARATUS, FUSING APPARATUS, AND IMAGE FORMING APPARATUS INCLUDING THE SAME
A switching mode power supply apparatus includes an alternating current (AC) power input unit to receive an AC voltage from an AC power supply source, a first rectifier to output a direct current (DC) voltage by rectifying the received AC voltage, a pulse width modulati...
04/14/2011
20110081158IMAGE FORMING DEVICE
An image forming device fusing a developer transferred to a recording medium surface based on inputted print data includes a heat source, a fusion member supported in a freely rotatable manner and heated by the heat source, a pressure application member positioned to fa...
04/07/2011
20110064441Temperature Control Method for Fixing Device
A fixing device includes: a fixing member configured to cause a recording medium to pass therethrough and subject the recording medium to fixing processing; a heating member configured to heat the fixing member; and a control member configured to control the heating mem...
03/17/2011
20110013922POWER CONTROL METHOD AND APPARATUS TO HEAT A HEATING ROLLER
A power control method and apparatus to heat a heating roller. The power control method includes heating a heating roller provided to fix a toner image of print data in an image forming apparatus, the heating roller having a heating resistor to receive roller power, the...
01/20/2011
20100322660METHOD AND APPARATUS FOR SAVING POWER IN AN IMAGE PRODUCTION DEVICE
A method and apparatus for saving power in an image production device is disclosed. The method may include determining if the image production device has been inactive for a predetermined period of time, wherein if it is determined that the image production device has b...
12/23/2010
20100303496FIXING DEVICE, IMAGE FORMING APPARATUS, AND METHOD FOR CONTROLLING FIXING DEVICE
In a case where a process is carried out with respect to an envelope in a fixing process mode, at least either (i) a set temperature of a fixing roller 60 in a fixing process or (ii) a set temperature of an endless belt 83 in the fixing process which endle...
12/02/2010
20100266306IMAGE HEATING APPARATUS
The non-sheet-feeding portion temperature rise is reduced during warm-up operation of an image heating apparatus, the time needed for the warm-up operation is reduced, and the accuracy of the image fixing operation is improved. When a CPU determines that a temperature d...
10/21/2010
20100266307FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE FIXING DEVICE
A fixing device using a belt fixing method includes a fixing belt which satisfies 42.2≧ER≧0.1044×D×μ−0.5174, where: D represents an inner diameter of the fixing belt; A represents a second inner diameter of the fixing belt, the second inner diameter ...
10/21/2010
20100247131IMAGE FORMING APPARATUS
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 detectio...
09/30/2010
20100239277IMAGE FORMING APPARATUS, PRINTING OPERATION CONTROL METHOD AND COMPUTER-READABLE INFORMATION RECORDING MEDIUM
An image forming apparatus includes a photosensitive member driving part that drives a photosensitive member, a counting part that carries out an adding operation when the photosensitive member driving part drives the photosensitive member, and carries out a subtracting...
09/23/2010
20100215391IMAGE FORMING APPARATUS
The image forming apparatus includes an image forming unit, a fixing part and a controller controlling power to be supplied to the heating unit so as to keep the temperature of the heating unit at a control target temperature, wherein when the fixing process is ended, i...
08/26/2010
20100209131FIXING DEVICE, IMAGE FORMING APPARATUS, RECORDING MEDIUM RECORDING CONTROL PROGRAM FOR REALIZING FIXING DEVICE AND CONTROL METHOD FOR FIXING DEVICE
A fixing device is provided. A fixing device includes a heating section that has a heat source comprised of a ceramic heat generating element that generates heat by electric power supply and has a positive temperature coefficient property. Then, in the heating section, ...
08/19/2010
20100172669FIXING DEVICE AND IMAGE FORMING APPARATUS HAVING THE SAME
A fixing device which can prevent deterioration and breakage of each member, and an image forming apparatus having the fixing device are provided. A separation/contact mechanism carries out separation/contact operation of an external heating section with respect to a fi...
07/08/2010
20100129106Image Forming Apparatus
In an image forming apparatus, a temperature of a heating member heated by a heat source to fix a developer image on a recording sheet is detected by a temperature sensor disposed apart from the heating member. A controller controls the heat source based upon a temperat...
05/27/2010
1        
 
Sign InRegister
Username  
Password   
forgot password?