DRUM DRIVING UNIT AND TANDEM TYPE IMAGE FORMING APPARATUS HAVING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a drum driving unit capable of improving the quality of an image obtained in an image forming apparatus by decreasing vibration.;SOLUTION: The drum driving unit 3 has a housing 10, a drum driving motor 13 provided to the housing 10 and a gear mechanism 20. The gear mechanism 20 is provided to the housing 10, and includes 1st and 2nd input gears 25 and 30 for receiving driving force given from one housing 10 arranged adjacently, 1st and 2nd transmission gears 26 and 29 for transmitting the driving force received from the 1st and the 2nd input gears 25 and 30 to another housing 10 arranged adjacently, and a developing device driving shaft 33 and a cleaning unit driving shaft 32 for outputting the driving force received from the 1st and the 2nd input gears 25 and 30 as the driving force for a developing device 46 and a cleaning unit 47.;COPYRIGHT: (C)2006,JPO&NCIPI