Patent ID: 8419010

Claim:
A recording unit comprising: a restricting member, structured so as to be rotatable around an axial portion, that is brought into contact with a target to restrict movement of the target; and a damper member that causes the restricting member to rotate after a delay in time from a restricting position, at which the restricting member restricts the movement of the target, to a releasing position, at which restriction on the movement of the target is released; wherein the damper member includes: a viscous material, a first member having a first sliding surface in a direction in which the target moves, and a second member having a second sliding surface, wherein: the second sliding surface which faces the first sliding surface of the first member with the viscous material being applied therebetween, the second member slides sliding between a first position at which the restricting member is placed at the restricting position and a second position at which the restricting member is placed at the releasing position with the second member engaging the restricting member, and a clearance area for storing the viscous material when at least the second member slides and reaches one of the first position and the second position, wherein the clearance area is formed in the first member to store the viscous material, at a position corresponding to a front end of the second member in a sliding direction thereof.