Color image forming apparatus and color image forming method the

Details Color image forming apparatus and color image forming method the Color image forming apparatus and color image forming method the

1997-07-17

1999-02-09

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

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

To produce color reproduction

399223, G03G 1301

Patent

active

058692142

ABSTRACT:
A dielectric belt 24 is retracted from a photoreceptor 2 before printing, and electrophotographic processes including a process of forming an electrostatic latent image, a developing process and a cleaning process except for a transferring process are repeated. During the repetition of the electrophotographic processes, a surface electric potential in the background of the photoreceptor 2 is measured by the electric potential sensor 10. Alternatively, a quantity of toner adhering to the background of the photoreceptor 2 is measured by the toner sensor 37 and the toner electric charge sensor 36. When the measured values are lower than the reference values, it is judged that no fringe image is generated in the recording condition, and the printing operation is carried out.

REFERENCES:
patent: 4078929 (1978-03-01), Gundlach
patent: 4831408 (1989-05-01), Yoshikawa et al.
patent: 4948686 (1990-08-01), Koch et al.
patent: 4984021 (1991-01-01), Williams
patent: 5061969 (1991-10-01), Parker et al.

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