| 摘要 |
The present invention provides an image fixing apparatus which comprises a heater for generating heat upon receiving electric power supply thereto, a film movable with an unfixed image on a recording material while being in contact with said heater, a backup roller for forming a nip with said heater, with said film being interposed in the nip, and fixing condition setting means for setting an image fixing condition according to a size of the recording material conveyed to the nip in a preceding image fixing operation and a size of the recording material conveyed to the nip in the current image fixing operation.
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