| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device utilizing a shared fixing device made into a unit even when the image forming device has a different printing processing speed. SOLUTION: In this image forming device, the fixing device 1 is provided with a cylindrical shaped fixing roll 1a provided with a heat source inside, a press roll 1b forming a nip being pressed to the fixing roll 1a, a press roll bearing 1c that is the bearing for the press roll 1b, a fixing press spring 1d by which the press roll bearing 1c is pressed in the direction of the fixing roll 1a by having one end connected to the bearing 1c, a spring holding member 1e that is connected to the other end of the fixing press spring 1d and a fixing pressure setting screw 1f that is screwed into the spring holding member 1e. In this case, screwed in amount of the fixing pressure setting screw 1f, that is projected amount from the spring holding member 1e, is set to change the pressure force of the spring 1d toward the press roll bearing 1c.
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