Fixation device and image formation apparatus

A fixation device comprising:

• a first rotation member extending in a first direction;
• a plurality of cleaning members which are arranged in a circumferential direction of the first rotation member and each of which includes an elastic body configured to be in contact with the first rotation member to clean the first rotation member;
• and
• a biasing mechanism that biases the plurality of cleaning members toward the first rotation member, wherein
• the plurality of cleaning members comprises:
• a first cleaning member including a first support body and a first elastic body supported by the first support body;
• and a second cleaning member including a second support body and a second elastic body supported by the second support body,
• in the first direction, a second contact area where the second elastic body contacts the first rotation member includes an overlapping region that overlap a first contact area where the first elastic body contacts the first rotation member, and
• the overlapping region includes a position corresponding to a widthwise end of a predetermined-size medium that is subjected to fixing process of the fixation device, and the biasing mechanism includes a bias member that applies a biasing force to the first support body in a region different from the overlapping region in the first direction.