DRIVING SYSTEM UNIT DEVICE FOR IMAGE FORMING DEVICE

摘要

PROBLEM TO BE SOLVED: To improve assemblability and to reduce manufacturing cost by constituting a driving system unit if a print to be freely attachable/detachable to/from a main body case. SOLUTION: A synthetic resin frame in the driving system unit freely attachable to/detachable from the part near one side of the main frame of the main body case is formed so that a difference part 600c in level is provided between the large width surfaces of the base plate part 600a of a transmission upstream side part to which power is transmitted from a driving motor 32 and of the base plate part 600b of a transmission downstream side part and the direction of the free end of a gear shaft 601 protruded from the base plate part 600a is opposite to those of the free ends of gear shafts 604-608 protruded from the base plate part 600b. Supporting metallic plates 72 and 73 supporting the free ends of each gear shaft are engaged with catchs 74 and 75 elastically provided on the circumferential side plate part 600b of the frame so as to face the large width surfaces of the respective base plate parts 600a and 600b.