Image forming method

Details Image forming method Image forming method

2007-06-19

2010-06-01

Goodrow, John L (Department: 1795)

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

C399S284000

Reexamination Certificate

active

07727698

ABSTRACT:
Disclosed is an image forming method comprising developing a latent electrostatic image formed on the surface of a latent electrostatic image bearing body by a developer borne and conveyed by a developer bearing body which is brought into contact with a developer layer control member to control an amount of the developer on the surface of the developer bearing body through a nonmagnetic single-component development system, wherein an acid value (SAV) of the surface of the developer and a total acid value (TAV) of the developer meet the following requirements:in-line-formulae description="In-line Formulae" end="lead"?1<SAV/TAV≦5 and 5≦TAV≦25,in-line-formulae description="In-line Formulae" end="tail"?and a ratio of a mass average particle size (d50, μm) of the developer to a surface roughness (Ra, μm), d50/Ra being in a range of 0.5 to 3.0 and an average spacing (Sm) between protruding peaks of the developer bearing body being in a range of 20 to 200 μm.

REFERENCES:
patent: 2005/0163538 (2005-07-01), Yamamura
patent: 2005/0214032 (2005-09-01), Koyanagi et al.
patent: 2006/0068312 (2006-03-01), Yamashita et al.
patent: 2006/0210903 (2006-09-01), Ohki et al.

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