Multifunction peripheral and position-calibrating method of scanning module

A multifunction peripheral, comprising:

• a scanning platform comprising a standby position, a position-calibrating structure and a datum line, wherein said scanning platform is divided into a first zone and a second zone by said datum line, and said position-calibrating structure is included in said second zone;
• a scanning module movable with respect to said scanning platform for performing a scanning operation;
• a recording unit for recording a parameter associated with a position of said scanning module with respect to said scanning platform, wherein said parameter is either a first value to indicate that said position of said scanning module lies in said first zone or a second value to indicate that said position of said scanning module lies in said second zone;
• and
• a controlling unit for controlling moving direction of said scanning module according to said parameter recorded in said recording unit, so that said scanning module is moved through said position-calibrating structure to perform a position-calibrating operation, wherein after said position-calibrating operation is completed, said scanning module is moved to said standby position.