Externally applied write addresses for printhead integrated...

Details Externally applied write addresses for printhead integrated... Externally applied write addresses for printhead integrated...

2006-10-10

2008-08-19

Nguyen, Lamson D. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S012000, C347S017000

Reexamination Certificate

active

07413288

ABSTRACT:
An inkjet printer comprising: a printhead with a plurality of printhead IC's, each having an array of nozzles for ejecting drops of printing fluid, and drive circuitry for driving the array of nozzles; a print engine controller for sending print data to the printhead IC's; an interface for electrical communication between the print engine controller and the printhead IC's; wherein, all the printhead IC's have a common initial address except one printhead IC at the end of the printhead, the exception having a different address such that the print engine controller sends a first broadcast instruction to any printhead IC's having the different address, the first broadcast instruction instructing the printhead IC having the different address to change its address to a first unique address, the printhead IC's being interconnected such that when the exception has undated its address, the address of the adjacent printhead IC changes to the different address so that a second broadcast command changes the write address to a second unique address and so on until all the printhead IC's have unique addresses provided by the PEC.

REFERENCES:
patent: 5760796 (1998-06-01), Hayasaki et al.
patent: 5760797 (1998-06-01), Koizumi et al.
patent: 6120125 (2000-09-01), Kim
patent: 6375299 (2002-04-01), Foster et al.
patent: 6742874 (2004-06-01), Hirayama et al.
patent: 2003/0202085 (2003-10-01), Rother
patent: 0174751 (1988-11-01), None
patent: WO 99/08875 (1999-02-01), None

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