Firing pulse duration control

Details Firing pulse duration control Firing pulse duration control

2006-10-24

2006-10-24

Tran, Huan (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S009000, C347S010000, C347S011000, C347S012000, C347S192000

Reexamination Certificate

active

07125090

ABSTRACT:
This invention concerns the control of firing pulse duration in a printhead, for a printer, such as a high performance color printer. The invention, in particular concerns a control system and a method. The printer may use, for instance, a pagewidth drop-on-demand inkjet printhead. The system and method involve a first input port to receive a signal indicative of the voltage available. A second input port to receive a signal indicative of the temperature of the printhead in the printer. A programmable pulse duration table, indexed by signals received at the first and second input ports, to generate control signals that represent predetermined durations for a firing pulse. And an output port to transmit the control signals.

REFERENCES:
patent: 4860034 (1989-08-01), Watanabe et al.
patent: 5172142 (1992-12-01), Watanabe et al.
patent: 0255116 (1988-02-01), None

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