Power transmitting apparatus, power switching apparatus, and driving apparatus of multi-function machine using the same

A driving apparatus of a multi-function machine, which includes a scanner unit and a printer unit, the driving apparatus comprising:

• a driving motor;
• a scanner driving part driving the scanner unit;
• a printer driving part driving the printer unit;
• a power switching part disposed with the driving motor, the scanner driving part, and the printer driving part to selectively transmit a power of the driving motor to at least one of the scanner driving part and the printer driving part,
• wherein the power switching part comprises,
• a first clutch disposed with the driving motor, the scanner driving part, and the printer driving part to move between a first power transmitting position transmitting the power of the driving motor to the scanner driving part and a second power transmitting position transmitting the power of the driving motor to the printer driving part, and
• a first actuating lever disposed on a moving path of a carrier and actuated by the carrier to move the first clutch between the first power transmitting position and the second power transmitting position;
• and
• a frame,
• wherein the first clutch comprises,
• a first rotation axis disposed at the frame,
• a first paper-feed clutch gear disposed at the first rotation axis to engage with the printer driving part, and having first paper-feed clutch teeth formed on a face thereof,
• a first scanner clutch gear disposed at the first rotation axis to engage with the scanner driving part, and having first scanner clutch teeth formed on a face thereof which is located toward the first paper-feed clutch teeth,
• a first middle clutch gear disposed at the first rotation axis between the first paper-feed clutch gear and the first scanner clutch gear to engage with the driving motor, and having first homologous paper-feed clutch teeth formed on one face thereof and opposite to the first paper-feed clutch teeth, and engaging to the first paper-feed clutch teeth, and first homologous scanner clutch teeth formed on the other face thereof and opposite to the first scanner clutch teeth, and engaging to the first scanner clutch teeth, and
• a first clutch spring disposed between the first middle clutch gear and the first scanner clutch gear to elastically urge the first middle clutch gear toward the first paper-feed clutch gear to allow the first homologous paper-feed clutch teeth of the first middle clutch gear to engage with the first paper-feed clutch teeth of the first paper-feed clutch gear.