Patent ID: 11966181
Assignee: NOK CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 1:
2. The fuser device according to claim 1, wherein a charge decay ΔV at a moment 120 seconds after end of charging a surface of the surface layer to −1 kV is equal to or less than 30 V, wherein a dielectric relaxation time T of the fuser device is equal to or less than 10 msec, and wherein a ratio Ct/AΔV of an electrostatic capacity per unit area C/A in a thickness direction of the fuser device to a value ΔV/t obtained by dividing the charge decay ΔV by a thickness t of the fuser device is equal to or greater than 1.04×10−18 F/Vμm.