| 摘要 |
A fixing device that allows simple and safe replacement of heating rollers is provided, which fixing device comprises a first lamp holder provided in the inner periphery of a retaining member, and interlock means for locking and unlocking the first lamp holder and the retaining member, wherein when replacing the heat roller, the interlock between the first lamp cartridge and the retaining member is unlocked to take out the retaining member and the heating roller from the opening of the frame of the image forming apparatus, while leaving the lamp cartridge inside the apparatus.
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