Patent application number | Description | Published |
20110305474 | IMAGE HEATING DEVICE AND IMAGE FORMING APPARATUS - An image heating device includes a rotatable image heating member for heating an image on a recording material; a pressing member for pressing the image heating member to form a nip in which the recording material is to be nip-conveyed; a belt member for heating the image heating member in contact with the image heating member; a first belt heating member for heating the belt member while pressing the belt against the image heating member; a second belt heating member, provided downstream of the first belt heating member with respect to a rotational direction of the image heating member, for heating the belt member while pressing the belt member against the image heating member; a first heating portion for heating the first belt heating member by energization; and a second heating portion for heating the second belt heating member by energization. Each of the first heating portion and the second heating portion is supplied with power so that a maximum of the power supplied to the first heating means is smaller than that of the power supplied to the second heating portion. | 12-15-2011 |
20120099882 | IMAGE HEATING DEVICE - An image heating device includes a rotatable member, an opposing member for forming a nip, between itself and the rotatable member, in which recording paper on which an image is carried is to be nip conveyed and heated, and a heater contacting the rotatable member's outer surface and including a belt, a first roller stretching the belt at an upstream side of the rotatable member with respect to a rotational direction of the rotatable member, a second roller downstream of the first roller, and first and second heating portions for heating the first and second rollers to first and second target temperatures, respectively. The device also includes a heating control portion for controlling the heater, and a portion for executing an operation in a control mode in which the second target temperature is set so as to be lower than the first target temperature. | 04-26-2012 |
Patent application number | Description | Published |
20120083432 | WATER-BASED LUBRICANT FOR PLASTIC PROCESSING HAVING EXCELLENT CORROSION RESISTANCE AND METAL MATERIAL HAVING EXCELLENT PLASTIC PROCESSABILITY - To provide a water-based lubricant for plastic working excellent in moisture absorption resistance and corrosion resistance, with which degradation in lubricating performances such as lubricity, workability and seizure resistance may not occur even under high-temperature/high humidity environments. | 04-05-2012 |
20130129364 | IMAGE FORMING APPARATUS - An image heating apparatus includes a heating roller; a nip forming member for forming the nip with the roller; a sheet jam sensor; a first controller for interrupting a heating operation when the sensor detects the sheet jamming, and for resuming the heating operation after the jamming is cleared; a rubbing member for rubbing a heating roller surface; a moving mechanism for moving the rubbing member to a position for spacing the rubbing member from the roller to a position for rubbing the roller surface; and a second controller for executing an operation of moving the rubbing member to the rubbing position to rub the heating roller surface when a predetermined condition is reached, wherein the second controller delays, when the condition is reached during a period in which a predetermined count of sheets pass the nip after the jam clearance, the moving operation to after the period. | 05-23-2013 |
20130206745 | IMAGE HEATING APPARATUS - An image heating apparatus includes a image heating roller in a nip; a nip forming member; a heating roller rubbing roller; a moving mechanism for moving the rubbing roller between a spaced position and a rubbing position; and a controller for executing operations in first and second modes. In the first mode, the heating roller is rotated with the rubbing roller in the spaced position and the heating roller in contact with the nip forming member with a target temperature of the heating roller higher than that of the nip forming member. In the second mode, the rubbing roller is contacted with the heating roller rubbing the surface of the heating roller. The temperature difference in the first mode between the target temperature of the heating roller and that of the nip forming member is larger than the temperature difference when the toner image is heated by the nip. | 08-15-2013 |
20140205307 | IMAGE HEATING APPARATUS - An image heating apparatus includes: an endless belt configured to heat an image on a sheet at a nip; a heating mechanism configured to heat the endless belt; a fan configured to send air toward a predetermined region of the endless belt; a heat pipe configured to move heat in a direction of uniformizing a temperature distribution of the endless belt with respect to a widthwise direction of the endless belt; and a controller configured to operate the fan such that an air flow rate is larger during heating of the image on a predetermined sheet providing an overlapping positional relationship with the predetermined region, than an air flow rate during the heating of the image on a sheet providing a non-overlapping positional relationship with the predetermined region. | 07-24-2014 |
20150212473 | IMAGE FORMING APPARATUS - An image heating apparatus includes a heating roller; a nip forming member for forming the nip with the roller; a sheet jam sensor; a first controller for interrupting a heating operation when the sensor detects the sheet jamming, and for resuming the heating operation after the jamming is cleared; a rubbing member for rubbing a heating roller surface; a moving mechanism for moving the rubbing member to a position for spacing the rubbing member from the roller to a position for rubbing the roller surface; and a second controller for executing an operation of moving the rubbing member to the rubbing position to rub the heating roller surface when a predetermined condition is reached, wherein the second controller delays, when the condition is reached during a period in which a predetermined count of sheets pass the nip after the jam clearance, the moving operation to after the period. | 07-30-2015 |