Patent application number | Description | Published |
20080260425 | IMAGE HEATING APPARATUS - The present invention provides an image heating apparatus which can easily attach and detach an external heating unit and easily perform a maintenance operation. | 10-23-2008 |
20080260435 | IMAGE HEATING APPARATUS - The present invention provides an image heating apparatus capable of holding an open/close unit at a normal position and capable of inexpensively avoiding conveyance failure and deterioration in image quality. | 10-23-2008 |
20090162116 | IMAGE HEATING APPARATUS - An image heating apparatus, including: a belt for heating a toner image formed on a sheet in a heating nip portion; a rotary member for forming the heating nip portion in cooperation with the belt and rotating the belt in conjunction with a rotation of the rotary member; a changing device for changing a pressure between the belt and the rotary member; and a warm-up device for starting a rotation of the belt by the rotary member with the pressure between the belt and the rotary member set to a first pressure, and thereafter changing the pressure between the belt and the rotary member from the first pressure to a second pressure higher than the first pressure after a lapse of a predetermined period of time from a start of the rotation of the belt so that the belt is rotated by the rotary member at the second pressure. | 06-25-2009 |
20090297233 | IMAGE HEATING APPARATUS - An image heating apparatus includes a heating member for heating a toner image on a recording material in a heating nip; a pressing member for forming the heating nip in contact with the heating member; a abrading member for abrading a surface of the heating member; a contact-and-separation device for permitting contact and separation of the abrading member with respect to the heating member; and a selecting device for selecting, depending on a basis weight of the recording material to be heated by said heating member, whether or not the contact-and-separation means brings the abrading member into contact with the pressing member before a recording material is conveyed to the heating nip. | 12-03-2009 |
20110142496 | FIXING APPARATUS - A fixing apparatus comprising: a fixing member for fixing a toner image onto a recording material; a pressure member for pressing the fixing member to form a nip portion by which the recording material is nipped and conveyed; an external heating portion, including a belt member, for heating an outer surface of the fixing member to heat the fixing member; a separation/contact portion which allows the fixing member and the external heating belt to abut each other or to be separated from each other; and a restricting portion for restricting the external heating belt from directing toward the fixing member by coming in contact with the outer surface of the external heating belt, when the fixing member and the external heating belt are separated from each other. | 06-16-2011 |
20110176823 | IMAGE HEATING APPARATUS - An image heating apparatus includes a heating member for heating a toner image on a recording material in a heating nip, a pressing member for forming the heating nip and being in contact with the heating member, an abrading member for abrading a surface of the heating member, a contact-and-separation device for causing contact and separation of the abrading member with respect to the heating member, and a selecting device for selecting, depending on the basis weight of the recording material to be heated by the heating member, whether or not the contact-and-separation means brings the abrading member into contact with the heating member before a recording material is conveyed to the heating nip. | 07-21-2011 |
20120057887 | IMAGE FORMING APPARATUS - An image forming apparatus, including: a fixing device configured to fix a toner image onto a sheet by heating the sheet having the toner image formed thereon; a wire-shaped guide configured to guide the sheet having the toner image fixed thereto; and a holder, configured to hold the wire-shaped guide, to which the wire-shaped guide is fixed by using elasticity of the wire-shaped guide. | 03-08-2012 |
20140029967 | IMAGE HEATING APPARATUS - An image heating apparatus includes a control unit that executes a long grain feed mode of conveying a long grain recording sheet whose grain direction is in parallel with a conveying direction of the recording sheet and a short grain feed mode of conveying a short grain recording sheet whose grain direction is orthogonal to the conveying direction of the recording sheet, the control unit changing, in accordance to the long grain feed mode and the short grain feed mode, temperature of a first rotating body set by the heating unit and setting of at least either one changeable setting among settings of a pressure-contact mechanism and a driving mechanism configured such that the setting of at least one of them is changeable. | 01-30-2014 |