Erase unit for ion deposition web-fed print engine

Details Erase unit for ion deposition web-fed print engine Erase unit for ion deposition web-fed print engine

1992-12-07

1999-08-03

Gibson, Randy W.

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

347125, 347126, B41J 2415

Patent

active

059331771

ABSTRACT:
An erase unit for an ion deposition web-fed print engine includes a plenum extending the width of the electrostatic image on the image cylinder and defining an ionization chamber with the image cylinder surface. The plenum has first and second electrodes separated by a dielectric. Upon application of a time-varying potential having a frequency of 0.2 to 50 mHz across the electrodes, ionization occurs, causing an ion current flowing in relation to the image surface until the image surface and the biasing electrode are at the same potential, thus erasing any residual electrostatic image on the cylindrical surface. By providing a DC biasing voltage, the residual electrostatic image may be erased when equalization occurs, with the image cylinder maintaining a pre-charged potential.

REFERENCES:
patent: 3668008 (1972-06-01), Severynse
patent: 3725951 (1973-04-01), McCurry
patent: 3815145 (1974-06-01), Tisch et al.
patent: 4168973 (1979-09-01), Simm et al.
patent: 4357618 (1982-11-01), Ragland
patent: 4365549 (1982-12-01), Fotland et al.
patent: 4409604 (1983-10-01), Fotland
patent: 4413897 (1983-11-01), Kohyama
patent: 4435723 (1984-03-01), Seimiya et al.
patent: 4466729 (1984-08-01), Iwata
patent: 4516847 (1985-05-01), Maczuszenko et al.
patent: 4538163 (1985-08-01), Sheridon
patent: 4675703 (1987-06-01), Fotland
patent: 4734722 (1988-03-01), Maczuszenko et al.
patent: 4772901 (1988-09-01), Boyer et al.
patent: 4792860 (1988-12-01), Kuehnle
patent: 4864331 (1989-09-01), Boyer et al.
patent: 4899186 (1990-02-01), Walcott
patent: 4918468 (1990-04-01), Miekka et al.
patent: 5014076 (1991-05-01), Caley, Jr. et al.
patent: 5027136 (1991-06-01), Fotland et al.
patent: 5107284 (1992-04-01), Cyman et al.
patent: 5243365 (1993-09-01), Christy et al.
patent: 5352953 (1994-10-01), Wakabayashi et al.
Patent Abstracts of Japan Publication No. JP60052870, Published Mar. 26, 1985.
Patent Abstracts of Japan Publication No. JP58174975, Published Oct. 14, 1983.

Affiliated with

Also associated with

Rating

Erase unit for ion deposition web-fed print engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Erase unit for ion deposition web-fed print engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Erase unit for ion deposition web-fed print engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-854108