Driving apparatus and image forming device having the same

An image forming apparatus, comprising:

• a supplying roller and a winding roller on which an ink ribbon is wound;
• a conveying roller to convey a recording medium;
• a pickup roller to pick up the recording medium;
• a thermal transfer head to thermally transfer dyes on the ink ribbon onto the recording medium;
• and
• a driving apparatus comprising:
• a driving gear bidirectionally rotatable and connected to the conveying roller,
• a first driven gear connected to the winding roller,
• a second driven gear connected to the pickup roller,
• a first swing gear and a second swing gear connected to the driving gear and to drive the first and second driven gears, respectively,
• a swing lever to support the first and the second swing gears, and
• an adjusting unit to adjust a swing position of the swing lever,
• wherein the adjusting unit comprises:
• a rack member coupled to a side of the swing lever to linearly move and to swing the swing lever.

A driving apparatus usable in an image forming apparatus, comprising:

• a driving gear rotatable in a first and second direction by a driving source;
• first and second driven gears selectively driven by the driving gear;
• first and second swing gears connected to the driving gear to drive the first and second driven gears, respectively;
• a swing lever pivotally disposed to support the first and second swing gears;
• a clutch unit to regulate the rotation of the second swing gear in one of the first and second direction such that the second driven gear rotates in only one of the first and second direction;
• and
• an adjusting unit to adjust a swing position of the swing lever with respect to the driving gear,
• wherein the adjusting unit comprises:
• a rack member coupled to a side of the swing lever to linearly move and to swing the swing lever.