Patent ID: 8064785

Claim:
A fixing device, comprising: a first roller having a first heating section and configured to heat a recording medium; a second roller, in contact with the first roller, and having a second heating section for heating the second roller; driving means configured to drive the first and second heating sections; detecting means configured to detect a surface temperature of the first roller; and control means configured to control the driving means to stop operation of only the first heating section when the detected surface temperature of the first roller becomes higher than a predetermined temperature, thereafter, issue a first alarm indicative of a first abnormality when the detected surface temperature of the first roller fails to drop within a first predetermined time period after stopping operation of only the first heating section, stop operation of the second heating section after issuance of the first alarm indicative of occurrence of the first abnormality, and thereafter, issue a second alarm indicative of occurrence of a second abnormality when the detected surface temperature of the first roller fails to drop within a second predetermined time period after the driving means stops the second heating section.