Belt transporting device and image forming apparatus using the same

The belt transporting device comprising:

• a plurality of tension rolls;
• an endless belt laid between at least two of the plurality of tension rolls, the endless belt having a belt-end edge part protruding from an end of one of the plurality of tension rolls;
• and
• a guide member provided in the vicinity of the endless belt, disposed in the vicinity of the one of the tension rolls,
• wherein the guide member comes in contact with the belt-end edge part so as to bend the belt-end part in a direction in which an end of the belt-edge part is directed tapered toward an axial center of the one of the plurality of tension rolls, and is disposed at a part opposing to a center part of a belt winding area of the one of the tension rolls in a peripheral direction of the tension roll.

A belt transporting device comprising:

• a plurality of tension rolls;
• an endless belt laid on the tension rolls, the endless belt having a belt-end edge part protruding from an end of one of the tension rolls;
• and
• a guide member provided in the vicinity of the endless belt;
• wherein the guide member regulates the shape of the belt-end edge part so that a rotary peripheral length of the belt-end edge part becomes smaller than that of an area where a rear side of the endless belt is in contact with the tension roll.

An image forming apparatus comprising a belt transporting device, wherein the image forming apparatus comprises:

• a plurality of tension rolls;
• an endless belt laid on the tension rolls, the endless belt having a belt-end edge part protruding from an end of one of the plurality of tension rolls;
• a guide member provided at the belt-end edge part protruding from the end of one of the plurality of tension rolls;
• and
• the guide member comes in contact with the belt-end edge part so as to bend the belt-end edge part in a direction in which an end of the belt-edge part is directed tapered toward an axial center of the one of the plurality of tension rolls.

An image forming apparatus comprising a belt transporting device, wherein the image forming apparatus comprises:

• a plurality of tension rolls,
• an endless belt laid on the tension rolls, the endless belt having a belt-end edge part protruding from an end of one of the tension rolls;
• a guide member provided in the vicinity of the endless belt;
• and
• the guide member regulates the shape of the belt-end edge part so that a rotary peripheral length of the belt-end edge part becomes smaller than that of an area where a rear side of the endless belt is in contact with the tension roll.