Xerographic developing system rolls having magnets of different

Details Xerographic developing system rolls having magnets of different Xerographic developing system rolls having magnets of different

1974-10-01

1981-01-27

Lawrence, Evan K.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With electromagnetic and/or electrostatic removal of...

118658, G03G 1509

Patent

active

042468671

ABSTRACT:
A xerographic developing system has rotating rolls in which stationary magnets of different axial widths are located. Magnetic developer is attracted to these rolls and the developer band width is controlled by the width of the magnets. The rolls may be transport rolls or developer rolls. When this concept is employed for transport rolls, a much larger sump capacity may be utilized since the developer band width can be controlled by varying the sizes of the magnets to keep the developer at the outer edges of the developer sump moving inwards to the developer zone. When this concept is employed for developer rolls, compensation is provided for spreading of the developer band and thereby loss of developer when the developer band is transported from one development roll in a magnetic brush system to another development roll either directly or by an intermediary transport roller.

REFERENCES:
patent: 1956291 (1934-04-01), Jessop
patent: 2873843 (1959-02-01), Wilson
patent: 3040704 (1962-06-01), Bliss
patent: 3098765 (1963-07-01), Keller et al.
patent: 3167171 (1965-01-01), Harmon et al.
patent: 3233587 (1966-02-01), Morton
patent: 3362380 (1968-01-01), Anderson et al.
patent: 3557751 (1971-01-01), Kushima et al.
patent: 3581873 (1971-06-01), Spodig
patent: 3608522 (1971-09-01), Davidson
patent: 3631962 (1972-01-01), Mason et al.
patent: 3641969 (1972-02-01), Hakanson
patent: 3641980 (1972-02-01), Bickmore
patent: 3648656 (1972-03-01), Ogawa
patent: 3654902 (1972-04-01), Hakanson
patent: 3707947 (1973-01-01), Reichart, Jr.
patent: 3724422 (1973-04-01), Latone et al.
patent: 3731782 (1973-05-01), Del Rosso
patent: 3754526 (1973-08-01), Caudill
IBM Technical Disclosure Bulletin, "Magnetic Brush Unit with Magnetic Conveyor", Freeman et al., vol. 15, No. 4, (Sep. 1972), pp. 1251, 1252.

Affiliated with

Also associated with

Rating

Xerographic developing system rolls having magnets of different does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Xerographic developing system rolls having magnets of different , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Xerographic developing system rolls having magnets of different will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1176196