| 摘要 |
A fixing device includes a primary winding, a fixing portion, a secondary winding, and a magnetic core body. The primary winding is configured to receive a supply of AC current from an AC power source. The fixing portion includes a heat source that generates heat when an electric current is supplied to the heat source, the fixing portion being configured to execute a fixing process onto a sheet with a toner image formed on the sheet, at a predetermined fixing temperature by using the heat from the heat source. The secondary winding is electrically connected to the heat source. The primary winding and the secondary winding are wound around the magnetic core body. The magnetic core body is made of a predetermined material whose permeability is lowered when a temperature thereof becomes equal to or higher than the predetermined fixing temperature upon receiving the heat from the heat source. |
