Inkjet head

Details Inkjet head Inkjet head

2007-03-30

2009-11-03

Stephens, Juanita D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S070000, C347S065000

Reexamination Certificate

active

07611229

ABSTRACT:
An inkjet head includes a passage unit and an actuator unit. The passage unit includes a common ink chamber and an individual ink passage leading from an outlet of the common ink chamber through a pressure chamber to an ejection port. The actuator unit can selectively take a first state in which the volume of the pressure chamber is V1and a second state in which the volume of the pressure chamber is V2larger than V1. The actuator unit changes from the first state into the second state and then returns to the first state to eject ink from the ejection port. The individual ink passage is formed such that the volume Vd of a partial passage in the individual ink passage corresponding to a region from an outlet of the pressure chamber to the ejection port, and the volume Vc of the individual ink passage, satisfy a condition that Vd/Vc is not less than 0.12 and not more than 0.40.

REFERENCES:
patent: 5495270 (1996-02-01), Burr et al.
patent: 6808254 (2004-10-01), Sakaida et al.
patent: 2005/0206681 (2005-09-01), Takahashi
patent: 2006/0050111 (2006-03-01), Mataki
patent: 1518679 (2004-09-01), None
patent: 2003305852 (2003-10-01), None
European Patent Office, European Search Report for Related EP Application No. 07251444 dated Jul. 27, 2007.

Affiliated with

Also associated with

Rating

Inkjet head does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4090396