Apparatus for replenishing a depleted ink sheet

Details Apparatus for replenishing a depleted ink sheet Apparatus for replenishing a depleted ink sheet

1990-02-23

1992-02-25

Burr, Edgar S.

Typewriting machines

Including interposed inking device for record-medium

Renovation of used ribbon

400201, 118621, 101DIG37, 427 141, 427 25, 427141, B41J 3116

Patent

active

050908286

ABSTRACT:
A method and apparatus for replenishing depleted portions of an ink sheet including a conductive ink layer on a dielectric layer wherein portions of ink have been transferred to a transfer medium. Conductive replacement ink material is supplied to the ink sheet and an electric charge is induced in the replacement ink and opposite charges are induced at an electrode on the opposite side of the dielectric layer. Replacement ink contacting the dielectric layer at the voids will adhere to the ink sheet, but charges in the replacement ink contacting the non-transcribed ink regions will flow to the conductive ink layer and will not adhere to the ink sheet.

REFERENCES:
patent: 4253775 (1981-03-01), Crooks et al.
patent: 4296176 (1981-10-01), Lennon et al.
patent: 4419024 (1983-12-01), Bowlds
patent: 4421429 (1983-12-01), Graham
patent: 4467332 (1984-08-01), Akutsu
patent: 4847110 (1989-07-01), Nakajima
patent: 4882593 (1989-11-01), Touma
patent: 4897669 (1990-01-01), Akutsu et al.
patent: 4976986 (1990-12-01), Akutsu

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