Abstract: An image forming system includes an image forming apparatus including a heating fixing portion and a host computer capable of instructing printing. In the image forming apparatus, throughput can be changed and discriminated in accordance with a printing number. For printing on small size sheets, the system is operable in a normal small size sheet mode and in a high speed small size sheet output mode, in which the printing is effected at a throughput which is higher than that in the normal small size sheet mode and, after completion of the printing, the image forming apparatus rests for a predetermined rest period. The host computer includes a mode selector for selecting a mode from the high speed small size sheet output mode and the normal small size sheet mode, and a controller for transmitting the mode selected by the mode selector to the image forming apparatus.

Abstract: An image heating apparatus includes a heating rotatable member; a pad-like pressing member contacted to the heating rotatable member and cooperating with the heating rotatable member to provide a nip for nipping and feeding a recording material, wherein the pressing member includes a base material having a roughened surface and a parting layer on the roughened surface, the parting layer being contacted to the heating rotatable member.

Abstract: An image heating device includes a heating rotatable member; and a pressing pad contacted to said heating rotatable member and forming a nip with said heating rotatable member to nip and feed a recording material, said pressing member being provided with an electroconductive material dispersed resin material layer contacting said heating rotatable member.

Abstract: The task is accomplished by an image forming system comprising an image forming apparatus including a heating fixing portion and a host computer capable of instructing printing. In an image forming apparatus, a throughput can be changed and discriminated in accordance with a printing number, wherein for printing on a small size sheet, said system is operable in a normal small size sheet mode, and in a high speed small size sheet output mode in which the printing is effected at a throughput which is higher than in the normal small size sheet mode, and after completion of the printing, the image forming apparatus rests for a predetermined rest period, wherein said host computer includes a mode selector for selecting a mode from the high speed small size sheet output mode and the normal small size sheet mode, and a controller for transmitting the mode selected by said mode selector to said image forming apparatus.

Abstract: An image heating apparatus includes a flexible sleeve; a heater contacted to an inner circumferential surface of the sleeve; a pressing roller for forming a nip, between itself and the sleeve contacted by the heater, in which a recording material is to be heated; and a supporting member for supporting the heater, the supporting member being disposed inside the heater and having an area in which the sleeve is sandwiched between the supporting member and the pressing roller at least on an upstream side and a downstream side of a heater supporting position of the supporting member with respect to a rotational direction of the sleeve. The supporting member is provided, at its surface in the area, with a plurality of recessed portions for permitting passage of a lubricant. The recessed portions are provided only in an area in which a predetermined maximum width sheet available in the image heating apparatus is passable.