Nozzle arrangement

• US 7,182,431 B2
• Filed: 01/23/2006
• Issued: 02/27/2007
• Est. Priority Date: 10/19/1999
• Status: Expired due to Fees

• Current Assignee: Memjet Technology Ltd. (Memjet Limited)
• Original Assignee: Silverbrook Research Pty Limited
• Inventors: Silverbrook, Kia
• Primary Examiner(s): NGUYEN, LAMSON D
• Application Number:
  US11/336,796
• Publication Number:
  US 20060119661A1
• Time in Patent Office: 400 Days
• Field of Search: 347/40, 347/43
• US Class Current: 347/43
• CPC Class Codes: B41J 2/17513 Inner structure
• CPC Class Codes: B41J 2/21 for multi-colour printing

Abstract

A printhead for printing images, the printhead comprising a plurality of ink reservoirs (3) and groups of nozzles (361, 362, 363), the groups of nozzles (361, 362, 363) arranged such that a nozzle (1) in a group (361, 362, 363) shares an ink reservoir (3) with another nozzle (1) of the group (361, 362, 363), each group (361, 362, 363) being associated with a respective ink reservoir (3).

Claims

1. A printhead for printing images, the printhead comprising:

a plurality of ink reservoirs; and

,

groups of nozzles, the groups of nozzles arranged such that a nozzle in a group shares an ink reservoir with another nozzle of the group, each group being associated with a respective ink reservoir; and

,

at least one tripod, each tripod comprising a first group of nozzles, a second group of nozzles and a third group of nozzles.

2. The printhead of claim 1, wherein each group of nozzles comprises of a first row of nozzles and a second row of nozzles.

3. The printhead of claim 2, wherein the first row of nozzles are adapted to print even dots from a first line on a page.

4. The printhead of claim 3, wherein the second row of nozzles are adapted to print odd dots from another line adjacent the first line on the page.

5. The printhead of claim 1, wherein each nozzle in the group has a firing order.

6. The printhead of claim 1, wherein each group of nozzles represents any one of:

Cyan;

Magenta; and

,

Yellow.

7. The printhead of claim 1, wherein the printhead comprises of at least one podgroup, the at least one podgroup comprising of a plurality of tripods.

8. The printhead of claim 1, wherein the printhead comprises of at least one firegroup, the at least one firegroup comprising of a plurality of podgroups.

9. The printhead of claim 1, wherein the prinhead comprises of at least one segment, the at least one segment comprising of a plurality of firegroups.

10. The printhead of claim 1, wherein the printhead includes 8 segments, each segment comprising of 4 firegroups, each firegroup comprising of 2 podgroups, and each podgroup comprising of 10 tripods.

11. The printhead of claim 1, wherein each group of nozzles includes 10 nozzles.

12. The printhead of claim 11, wherein 96 nozzles are adapted to be fired at any one time.