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US 10,795,276 B1Granted
Conductive roller, transfer device, process cartridge, image forming apparatus, and method for producing conductive roller
AssigneeFuji Xerox Co., Ltd.
InventorsMinoru Rokutan, Kenta Shingu
Life of this patent
Estimating the term…
Abstract
A conductive roller includes a supporting member and a conductive elastic foam layer disposed on the supporting member. In a spectrum of amplitude (μm) vs. period (μm) obtained by subjecting a roughness waveform of the outer circumferential surface of the conductive elastic foam layer in an axial direction to fast Fourier transformation, the integrated value St of the amplitude within a period range of 100 μm or more and 300 μm or less is 455 μm or less.
Claims16
A conductive roller comprising:
- a supporting member;
- and
- a conductive elastic foam layer disposed on the supporting member,
- wherein, in a spectrum of amplitude (μm) vs. period (μm) obtained by subjecting a roughness waveform of an outer circumferential surface of the conductive elastic foam layer in an axial direction to fast Fourier transformation, an integrated value St of an amplitude within a period range of 100 μm or more and 300 μm or less is 455 μm or less.
1 more element
A conductive roller comprising:
- a supporting member;
- and
- a conductive elastic foam layer disposed on the supporting member,
- wherein, in a spectrum of amplitude (μm) vs. period (μm) obtained by subjecting a roughness waveform of an outer circumferential surface of the conductive elastic foam layer in an axial direction to fast Fourier transformation, amplitude A300 of period 300 μm is 3.6 μm or less.
1 more element
Dependencies are inferred from the claim text.