Sheet conveyance device and image forming apparatus

A sheet conveyance device comprising:

• a registration roller pair that
• extends in a sheet width direction orthogonal to a sheet conveyance direction, and
• corrects a displacement in a position of a sheet in the sheet width direction, the sheet being conveyed;
• and
• a conveyance roller pair including a first roller and a second roller that
• are arranged on an upstream side of the registration roller pair in the sheet conveyance direction and
• are rotatably arranged opposite each other to convey the sheet,
• wherein the first roller includes:
• a drive shaft which extends in the sheet width direction, and to which a rotational drive force is transmitted;
• a first conveyance unit including a first roll shaft which is arranged side by side with the drive shaft in the sheet width direction, and to which a first roll portion that makes contact with the second roller is fixed;
• and
• a joint portion that couples the drive shaft to the first roll shaft in the sheet width direction, and holds the first roll shaft such that the first roll shaft is movable in the sheet width direction, and
• the first conveyance unit includes:
• a pair of bearing portions that rotatably support both end portions of the first roll shaft in the sheet width direction, and are movable along the sheet width direction together with the first roll shaft;
• and
• a pair of first biasing members that respectively bias the pair of bearing portions in opposite directions along the sheet width direction.