Inkjet printhead electrical connections

Details Inkjet printhead electrical connections Inkjet printhead electrical connections

1995-10-10

1996-12-31

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Controller

347 50, B41J 232

Patent

active

055898599

ABSTRACT:
A scanning head printer includes a battery that is onboard a reciprocating printhead for providing power necessary for printing onto a medium, such as a sheet of paper. In a second embodiment, the drive signals for firing ink from the scanning printhead are transmitted in a wireless fashion. If both the onboard battery and the wireless transmission are combined, the scanning printhead can be free of restrictive cables that link the printhead to stationary circuitry. Preferably, the printhead includes power-conditioning circuitry. A stationary primary coil may be employed for inductive coupling to a recharge coil that is mounted for movement with the printhead and the onboard battery, thereby permitting recharging of the battery when the printhead is in a rest position.

REFERENCES:
patent: 4379988 (1983-04-01), Mattatall
patent: 4706097 (1987-11-01), Harmon
patent: 4755836 (1988-07-01), Ta et al.
patent: 4907018 (1990-03-01), Pinkerpell et al.
patent: 5057855 (1991-10-01), Damouth
patent: 5117244 (1992-05-01), Yu
patent: 5182583 (1993-01-01), Horigome et al.
patent: 5257042 (1993-10-01), Buhler

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