Patent ID: 7447465

Claim:
A multi-function peripheral, comprising: an image forming device including a carriage, said imaging unit forming an image on a recording sheet with moving said carriage reciprocally in a predetermined horizontal direction; an image reading device that reads an image of an object by moving an image capturing element in the predetermined horizontal direction when said image forming unit forming an image on the recording sheet; an image forming unit including said image forming device; an image reading unit including said image reading device and located above said image forming unit; spring elements provided between said image forming unit and said image reading unit, said spring elements applying an urging force between said image forming unit and said image reading unit in a direction parallel to the predetermined horizontal direction, wherein following condition: f f n > 2 is satisfied, wherein, f is a characteristic frequency of said image forming unit in the predetermined horizontal direction, and wherein f n is a characteristic frequency of said image reading unit.