James J Bacon

US Patent:

44326319, Feb 21, 1984

Filed:

Dec 18, 1978

Appl. No.:

5/970587

Inventors:

James L. Bacon - Boulder CO
Gerald L. Smith - Broomfield CO

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G03G 15052

US Classification:

355 3CH

Abstract:

In an electrophotographic copying device having charging, imaging, developing, transferring, precleaning and cleaning facilities, the arrangement being in the conventional sense, but incorporates a combined charging and precleaning unit that is operable to perform either a charging function or a precleaning function at the proper time during a copying/cleaning cycle. A combined precharging/transferring unit is also incorporated to facilitate precharging or transferring at a predetermined time during the copying process.

US Patent:

41666909, Sep 4, 1979

Filed:

Nov 2, 1977

Appl. No.:

5/847957

Inventors:

James L. Bacon - Boulder CO
Larry M. Ernst - Boulder CO
William G. Hauptman - Boulder CO

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G03G 1502
H02M 3335

US Classification:

355 3CH

Abstract:

A digitally regulated power supply for the corona charging unit of an electrostatic copying machine in which a sample of the ionic current of the corona unit is utilized in conjunction with a digital regulator to regulate the power supply establishing the charge of the corona. The digital regulator in conjunction with at least one pulse width modulated power supply permits very fast rise and fall times of the power supply current. Further, between duty cycles of the machine, the digital regulator stores a representation of the correct operating point of the corona charging unit determined in the immediately prior duty cycle. In the next duty cycle, the representation is utilized by the digital regulator to initially regulate the power supply.

US Patent:

40272010, May 31, 1977

Filed:

Oct 6, 1975

Appl. No.:

5/620096

Inventors:

James Lydell Bacon - Boulder CO
Jesse Wayne Spears - Boulder CO

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H05F 304

US Classification:

361213

Abstract:

A corona and associated electrical drive as shown herein, neutralize the static charges on non-conductive sheets or webs. The neutralization of static charge is accomplished by passing the material to be neutralized under a double wire corona. Both wires in the corona are connected to an AC signal. The AC signal drives both wires with a signal that alternates in polarity at frequency f. The wires are spaced apart a predetermined distance calculated from a function dependent upon the frequency of the AC signal and the speed of the paper moving under the corona wires. The predetermined distance is such that a given area of the paper will pass under one wire at a first polarity and under the second wire at the opposite polarity. Further enhancement of neutralization can be accomplished by using a second double wire corona out of phase with the first double wire corona. In addition the sheet or web as it passes under the corona wires is supported to prevent static charge on the support from balancing a static charge on the sheet or web.

Address:

3324 S Fld St APT 176, Lakewood, CO 80227

VIN:

5TFUW5F14BX184379

Make:

TOYOTA

Model:

TUNDRA

Year:

2011