Abstract: A fixing device includes a fixing belt, a first heater, a second heater, a supporting roller, and a counter roller. During activation of the fixing device, a maximum power is supplied to the first heater, and only the first heater heats the fixing belt. When a temperature on the fixing belt reaches a first reference temperature, the fixing belt is driven rotationally, the power supplied to the first heater is dropped, and power is supplied also to the second heater. When the temperature on the fixing belt reaches a target temperature and the temperature on the counter roller reaches a second reference temperature, fixing operation is allowed to start.

Abstract: A fixing device includes an abutting member arranged at a position between an upstream side of a fixing roller and a downstream side of a heating roller in a moving direction of a fixing belt so as to abut against the fixing belt and expand a fixing region. The fixing device may also include a first supporting member and a second supporting member, which supports the fixing belt, etc., with respect to the first supporting member. An angle, formed between an approaching direction of a sheet-like recording medium and a line tangential to an upstream end of the fixing region in the moving direction of the fixing belt, is set equal to 20° or larger.

Abstract: A fixing device for fixing a toner image on a recording medium includes a heating roller, a fixing roller, an endless fixing belt extended around at least the heating roller and the fixing roller and configured to be heated by the heating roller, a pressing roller disposed opposite to the fixing roller via the fixing belt, a temperature detecting member configured to detect a surface temperature of the heating roller, and a control device configured to control a surface temperature of the fixing belt at a predetermined temperature based on a surface temperature of the heating roller detected by the temperature detecting member. The temperature detecting member contacts a circumferential surface of the heating roller where the fixing belt is not extended around, such that the temperature detecting member is held in a low frictional relation to the circumferential surface of the heating roller.

Abstract: A fixing device includes an abutting member arranged at a position between an upstream side of a fixing roller and a downstream side of a heating roller in a moving direction of a fixing belt so as to abut against the fixing belt and expand a fixing region. The fixing device may also include a first supporting member and a second supporting member, which supports the fixing belt, etc., with respect to the first supporting member. An angle, formed between an approaching direction of a sheet-like recording medium and a line tangential to an upstream end of the fixing region in the moving direction of the fixing belt, is set equal to 20° or larger.

Abstract: A fixing device including a rotatable fixing member, a first heating device configured to heat the rotatable fixing member, a rotatable pressing member positioned in press-contact with the rotatable fixing member and forming a fixing region through which a sheet-like recording medium having an unfixed image thereon passes to fix the unfixed image by heat and pressure, and a controller configured to turn off the first heating device for a first predetermined time before a trailing edge of a last sheet-like recording medium in a series of a job passes through the fixing region.

Abstract: A liquid application apparatus includes a target to which a liquid is to be applied and an application unit arranged to come in contact or get separated from the target and which applies the liquid to the target when in contact. The target performs cycle motion. A minimum time for which the application unit comes in contact with the target is equal to or greater than a period of the cycle motion of the target.

Abstract: An image forming apparatus including a fixing device that has a rotatable endless belt, a contacting member to contact the rotatable endless belt, a rotatable pressing member contacting the contacting member via the rotatable endless belt to form a nip region, a heating member to heat the rotatable endless belt, a detecting device to detect a temperature of the heating member, a controlling device to control a temperature of the heating member based on a detection result of the detecting device, and a determining device to determine that the sheet-like recording medium has passed through the fixing device. The controlling device controls such that the temperature of the heating member set for the fixing operation is decreased to a temperature set when the sheet-like recording medium has passed through the fixing device, immediately after a last sheet-like recording medium in a series of a job has passed through the fixing device.

Abstract: A fixing device includes an abutting member arranged at a position between an upstream side of a fixing roller and a downstream side of a heating roller in a moving direction of a fixing belt so as to abut against the fixing belt and expand a fixing region. The fixing device may also include a first supporting member and a second supporting member, which supports the fixing belt, etc., with respect to the first supporting member. An angle, formed between an approaching direction of a sheet-like recording medium and a line tangential to an upstream end of the fixing region in the moving direction of the fixing belt, is set equal to 20° or larger.

Abstract: A fixing device for fixing a toner image on a recording medium includes a heating roller, a fixing roller, an endless fixing belt extended around at least the heating roller and the fixing roller and configured to be heated by the heating roller, a pressing roller disposed opposite to the fixing roller via the fixing belt, a temperature detecting member configured to detect a surface temperature of the heating roller, and a control device configured to control a surface temperature of the fixing belt at a predetermined temperature based on a surface temperature of the heating roller detected by the temperature detecting member. The temperature detecting member contacts a circumferential surface of the heating roller where the fixing belt is not extended around, such that the temperature detecting member is held in a low frictional relation to the circumferential surface of the heating roller.

Abstract: A fixing device for an image forming apparatus includes a heat roller and a press roller pressed against the heat roller. An applicator roller applies oil to at least one of the heat roller and press roller. A rotatable cleaning member and a stationary cleaning member are held in contact with the applicator roller.

Abstract: The present invention is intended to solve a problem in that the response in the temperature detection in the rotor having the induction coil inside the durability in the rotor and a stain temperature detection means in the rotor is affected by the magnetic flux of an induction heating mechanism.The invention provides an image fixing device having an induction coil inside of a rotor 11 which is rotatably supported, the device having inside of the rotor 11 at least one oftemperature detection means 17 for detecting the temperature of the rotor 11 ortemperature over-rise preventing detection means 18 for detecting that the temperature of the rotor 11 has risen to a predetermined temperature.

Abstract: The present invention is intended to solve a problem in that the response in the temperature detection in the rotor having the induction coil inside the durability in the rotor and a stain temperature detection means in the rotor is affected by the magnetic flux of an induction heating mechanism.The invention provides an image fixing device having an induction coil inside of a rotor 11 which is rotatably supported, the device having inside of the rotor 11 at least one of temperature detection means 17 for detecting the temperature of the rotor 11 or temperature over-rise preventing detection means 18 for detecting that the temperature of the rotor 11 has risen to a predetermined temperature.