Fusing roller regenerating apparatus in image forming apparatus and method thereof

A method of regenerating a fusing roller in an image forming apparatus, the method comprising:

• causing a coating unit including a coating liquid tub to be disposed under the fusing roller and formed in a shape to partially receive the fusing roller the coating unit having, a coating liquid injection portion and a coating liquid discharging portion;
• causing a heating unit including a heating body to be spaced-apart from a surface of the fusing roller by a distance;
• injecting the coating liquid into the coating liquid tub through the coating liquid injection portion;
• forming a regenerated coating layer to a predetermined thickness by rotating the fusing roller after the injection of the coating liquid;
• hardening the regenerated coating layer using the heating body;
• and
• discharging a remaining portion of the coating liquid through the coating liquid discharging portion after the hardening of the regenerated coating layer.

A fusing roller regenerating apparatus of a fusing device fusing a toner image on a sheet of paper in an image forming apparatus, comprising:

• a fusing roller having a heater, a core disposed around the first heater, and a first coating layer formed on the core and having an anti-adhesiveness;
• a fusing backup roller pressing the sheet having the toner image against the fusing roller to fuse the toner image onto the sheet when the sheet having the toner image passes between the fusing backup roller and the first coating layer of the fusing roller;
• a coating unit coating a liquid on the first coating layer;
• and
• a heating unit hardening the liquid to form a second coating layer of the first coating layer.

A fusing roller regenerating apparatus of a fusing device fusing a toner image on a sheet of paper in an image forming apparatus, comprising:

• a fusing roller having a heater, a core disposed around the first heater, and a first coating layer formed on the core and having a first anti-adhesiveness;
• a fusing backup roller pressing the sheet having the toner image against the fusing roller to fuse the toner image onto the sheet when the sheet having the toner image passes between the fusing backup roller and the first coating layer of the fusing roller;
• a coating unit disposed adjacent a first portion of the fusing roller and containing a liquid to be applied to the first coating layer;
• and
• a heating unit disposed on a second portion of the fusing roller to harden the liquid.

A method in a fusing roller regenerating apparatus of a fusing device fusing a toner image on a sheet of paper in an image forming apparatus, comprising:

• causing a fusing roller having a heater, a core disposed around the first heater, and a first coating layer formed on the core and having an anti-adhesiveness to be disposed below a fusing backup roller to fuse the toner image onto the sheet when the sheet having the toner image passes between the fusing backup roller and the first coating layer of the fusing roller;
• coating a liquid on the first coating layer;
• and
• hardening the liquid to form a second coating layer on the first coating layer.