Head substrate, printhead, head cartridge, and printing...

Details Head substrate, printhead, head cartridge, and printing... Head substrate, printhead, head cartridge, and printing...

2006-05-11

2010-12-14

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

Reexamination Certificate

active

07850262

ABSTRACT:
This invention is directed to: a printhead substrate which employs a constant current driving method and can suppress power consumption in a standby state, prevent an increase in printhead temperature, and stably discharge ink; a printhead using the printhead substrate; a head cartridge incorporating the printhead; and a printing apparatus using the printhead. The head substrate includes a plurality of printing elements; a plurality of driving elements which are provided in correspondence with the plurality of printing elements and drive the plurality of printing elements; a reference voltage generation circuit which generates a reference voltage; a reference current generation circuit which generates a first reference current on the basis of the generated reference voltage; a plurality of constant current sources, each of which generates a constant current to drive the plurality of printing elements on the basis of the generated first reference current; and a switch which controls supply of the first reference current in accordance with a printing operation.

REFERENCES:
patent: 4774526 (1988-09-01), Ito
patent: 5163760 (1992-11-01), Nardozzi
patent: 6402279 (2002-06-01), Torgerson et al.
patent: 6890048 (2005-05-01), Hirayama
patent: 7044572 (2006-05-01), Hirayama
patent: 2002/0118241 (2002-08-01), Fujii
patent: 2005/0206885 (2005-09-01), Kurata
patent: 2006/0109292 (2006-05-01), Sakurai
patent: 2007/0211095 (2007-09-01), Hirayama
patent: 0 440 500 (1991-08-01), None
patent: 1 566 271 (2005-08-01), None
patent: 1 579 997 (2005-09-01), None
patent: 2000-246900 (2000-09-01), None
patent: 2004-181678 (2004-07-01), None
patent: 2004-181679 (2004-07-01), None
patent: 583098 (2004-04-01), None

Affiliated with

Also associated with

Rating

Head substrate, printhead, head cartridge, and printing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Head substrate, printhead, head cartridge, and printing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Head substrate, printhead, head cartridge, and printing... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4229433