Abstract: An image forming apparatus includes a fuser to fuse a print medium having a surface on which toner is developed, the fuser including a heating element, and a controller to control a power source to the heating element by varying a duty control cycle according to a temperature of the fuser.

Abstract: An image forming apparatus includes a fuser to fuse a print medium having a surface on which toner is developed, the fuser including a heating element, and a controller to control a power source to the heating element by varying a duty control cycle according to a temperature of the fuser.

Abstract: An image forming apparatus comprises a fuser to fuse a print sheet having a surface on which toner is developed, the fuser including a heating element, and a controller to control a number of waveforms of an alternating current (AC) power to be supplied to the heating element, within a control cycle to control the fuser to fuse the print sheet at a target temperature and to vary the control cycle, according to a temperature of the fuser.

Abstract: An image forming apparatus comprises a fuser to fuse a print sheet having a surface on which toner is developed, the fuser including a heating element, and a controller to control a number of waveforms of an alternating current (AC) power to be supplied to the heating element, within a control cycle to control the fuser to fuse the print sheet at a target temperature and to vary the control cycle, according to a temperature of the fuser.

Abstract: An image forming apparatus is provided. The image forming apparatus includes a fuser configured to fuse a print sheet on which toner is developed and a fuser driver configured to supply a heating element of the fuser with a power source supplied from an external alternating current (AC) so as to enable the fuser to have a preset target temperature. The fuser driver performs a control of the number of waveforms hours of an AC power source supplied to the heating element by varying a control cycle according to a temperature of the fuser.

Abstract: An image forming apparatus is provided. The image forming apparatus includes a fuser configured to fuse a print sheet on which toner is developed and a fuser driver configured to supply a heating element of the fuser with a power source supplied from an external alternating current (AC) so as to enable the fuser to have a preset target temperature. The fuser driver performs a control of the number of waveforms hours of an AC power source supplied to the heating element by varying a control cycle according to a temperature of the fuser.

Abstract: An image forming apparatus includes an operation progressing condition that is considered when the image forming apparatus enters an apparatus protection mode. Further, a method of controlling the image forming apparatus includes receiving an apparatus protection mode entry condition of the image forming apparatus, detecting the temperature of the image forming apparatus or the number of continuously printed sheets, judging whether or not the apparatus protection mode entry condition is satisfied, if the temperature of the image forming apparatus is higher than a predetermined temperature or the number of continuously printed sheets is greater than the predetermined number of sheets, and maintaining a basic printing operation of the image forming apparatus, if the apparatus protection mode entry condition is not satisfied, thereby increasing user's satisfaction and operation efficiency.