Electrophotographic apparatus

Details Electrophotographic apparatus Electrophotographic apparatus

2007-07-17

2007-07-17

Le, Hoa Van (Department: 1752)

Electrophotography

Having particular structure

Modular or displaceable

C399S116000, C399S159000, C399S186000, C430S056000, C430S078000

Reexamination Certificate

active

10978581

ABSTRACT:
In an electrophotographic apparatus having a blue (purple) semiconductor laser as a light source, the electrophotographic apparatus has an electrophotographic photosensitive member, a charging means, an exposure means, a developing means, a transfer means and a destaticizing means. The exposure means has a semiconductor laser and the destaticizing means having a light-emitting diode, wherein wavelength λa (nm) of the semiconductor laser, wavelength λb (nm) of the light-emitting diode and wavelength λc (nm) at which the electrophotographic photosensitive member has a maximum spectral sensitivity satisfy the following relationship (1):in-line-formulae description="In-line Formulae" end="lead"?λa<λc<λb  (1)in-line-formulae description="In-line Formulae" end="tail"?and any of the λa, the λb and the λc is within the range of from 380 nm to 520 nm.

REFERENCES:
patent: 5666589 (1997-09-01), Yoshinaga et al.
patent: 5818489 (1998-10-01), Yoshinaga et al.
patent: 6183922 (2001-02-01), Takai et al.
patent: 6548216 (2003-04-01), Kawamura et al.
patent: 09-240051 (1997-09-01), None
patent: 10-239956 (1998-09-01), None

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