| 摘要 |
<p>A thermal fixing apparatus employing a ceramics heater and a tubular fixing film in which high speed fixing of 24 ppm or above is realized while enhancing durability of the fixing film and the fixing performance furthermore. The fixing face side surface of a ceramics heater (10) touching a fixing film (3) and at least the part of a heater support (12) adjacent to the fixing face side surface have a shape substantially identical to the naturally deformed shape of the fixing film (3) under a stationary state pressed by a press roller (4) at a specified nip width or under a traveling state. Alternatively, they may have a planar shape at the nip part and on the inlet side and outlet side contiguous thereto and may have a curved shape copying the tubular shape of the fixing film (3) at other parts.</p> |
