Scanning apparatus, driving method therefor, and image forming apparatus having the same

A driving method for a scanning apparatus comprising:

• moving a scanning head, which reciprocates between a home position and a finish position opposite to the home position to scan a document and generate image data, toward the finish position by a predetermined distance when a scanning signal is inputted;
• sensing a position of the scanning head by sensing a position detection part located in or on a stage glass on which the document is loaded;
• and
• moving the scanning head to the home position at a faster speed than a predetermined reference speed if the scanning head is distanced farther from the home position than a predetermined distance.

An image forming apparatus comprising:

• a stage glass on which a document is loaded;
• a scanning head which reciprocates between a home position of the stage glass and a finish position opposite to the home position to scan the document and generate image data;
• a position detection part disposed in or on the stage glass along a moving direction of the scanning head;
• a head position sensing part which senses the position detection part to sense a position of the scanning head when a scanning signal is inputted;
• and
• a controlling part to control the scanning head so that the scanning head moves to the home position at a faster speed than a predetermined reference speed if the scanning head is distanced farther from the home position than a predetermined distance.

A driving method for an image forming apparatus comprising:

• moving a scanning head, which reciprocates between a home position and a finish position opposite to the home position to scan a document and generate image data, toward the finish position by a predetermined distance when a scanning signal is inputted;
• sensing a position of the scanning head by sensing a position detection part located in or on a stage glass on which a document is loaded;
• and
• moving the scanning head back to the home position at a speed according to the sensed position of the scanning head relative to the home position.