Method and apparatus for improving transcription quality in elec

Details Method and apparatus for improving transcription quality in elec Method and apparatus for improving transcription quality in elec

Filed on

1993-11-12

Date issued

1996-06-11

Examiner

Beatty, Robert

Patent Class

Incremental printing of symbolic information

SubClass

Ink jet

SubSubClass

Ejector mechanism

Other Related Categories

347125, B41J 2415

Type

Patent

Status

active

Patent number

055260292

Description

ABSTRACT:
A method and apparatus for improving printing quality in electrographic printers includes an electrode device for generating a latent electrostatic charge pattern from electric signals. The electrode device is arranged within a gap area between a particle carrier and a back electrode. During a portion of the operating cycle, preferably when no development is performed, a duel airflow that is charged with positive and/or negative ions is directed into the gap area to neutralize the electrostatic attraction forces between the toner particles, and the electrode device and for achieving a homogeneous charge level on the surface layer of the electrode device. A magnet can be positioned opposite the electrode device so as to attract toner particles.

REFERENCES:
patent: 3983801 (1976-10-01), Watanabe et al.
patent: 4478510 (1984-10-01), Fujii et al.
patent: 4521792 (1985-06-01), Clark et al.
patent: 4743926 (1988-05-01), Schmidlin et al.
patent: 4833492 (1989-05-01), Damouth
patent: 4903049 (1990-02-01), Sotack
patent: 5097277 (1992-03-01), Schmidlin et al.
patent: 5170185 (1992-12-01), Takemura et al.
patent: 5200769 (1993-04-01), Takemura et al.
patent: 5204696 (1993-04-01), Schmidlin et al.
patent: 5343844 (1994-09-01), Fukui et al.

Affiliated with

Also associated with

Rating

Method and apparatus for improving transcription quality in elec does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for improving transcription quality in elec, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for improving transcription quality in elec will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-355595