Printhead support assembly

• US 6,641,253 B2
• Filed: 11/12/2002
• Issued: 11/04/2003
• Est. Priority Date: 06/30/1999
• Status: Expired due to Term

• Current Assignee: Memjet Technology Ltd. (Memjet Limited)
• Original Assignee: Silverbrook Research Pty Limited
• Inventors: Silverbrook, Kia, King, Tobin Allen
• Primary Examiner(s): NGUYEN, LAMSON D
• Application Number:
  US10/291,705
• Publication Number:
  US 20030090538A1
• Time in Patent Office: 357 Days
• Field of Search: 347/42, 347/13, 347/49, 347/20, 347/65
• US Class Current: 347/42
• CPC Class Codes: B41J 2/14 Structure thereof only for on-demand ink jet heads
• CPC Class Codes: B41J 2/1433 Structure of nozzle plates
• CPC Class Codes: B41J 2/145 Arrangement thereof
• CPC Class Codes: B41J 2/155 for line printing
• CPC Class Codes: B41J 2/175 Ink supply systems ; Circuit parts therefor
• CPC Class Codes: B41J 2/21 for multi-colour printing
• CPC Class Codes: B41J 2002/14362 Assembling elements of heads
• CPC Class Codes: B41J 2002/14419 Manifold
• CPC Class Codes: B41J 2002/14459 Matrix arrangement of the pressure chambers
• CPC Class Codes: B41J 2002/14491 Electrical connection
• CPC Class Codes: B41J 2202/19 Assembling head units
• CPC Class Codes: B41J 2202/20 Modules
• CPC Class Codes: B41J 2202/21 Line printing
• CPC Class Codes: Y10T 29/49401 Fluid pattern dispersing device making, e.g., ink jet

Abstract

An inkjet printhead assembly includes a hollow elongate member defining ink supply channels. The ink supply channels are in fluid communication with an elongate slot in and extending at least partly along the elongate member. A plurality of printhead segment carriers is received and secured in neighboring arrangement within the slot, and at least one printhead segment is mounted to each printhead segment carrier.

Claims

1. A support assembly for a plurality of inkjet printhead segments, said support assembly including:

a hollow elongate member that defines at least one ink supply channel and an elongate slot that extends at least partly along the elongate member, so that the, or each, ink supply channel is in fluid communication with the elongate slot; and

a plurality of printhead segment carriers positioned in the slot, at least one printhead segment being mountable in each printhead segment carrier.

2. A support assembly as claimed in claim 1, wherein each printhead segment carrier includes at least one ink gallery that is in fluid communication with said, or an associated one of said, ink supply channels when mounted to that printhead segment carrier.

3. A support assembly according to claim 1, wherein the printhead segment carriers are configured so that when the printhead segments are mounted in the printhead segment carriers they define a series of printing ranges in a direction lengthwise along the elongate member that overlap to define a combined printing range of greater lengthwise extent than any of the printing ranges of the respective printhead segments.

4. An inkjet printhead assembly including:

a hollow elongate member that defines at least one ink supply channel and an elongate slot that extends at least partly along the elongate member, the, or each, ink supply channel being in fluid communication with the elongate slot; and

a plurality of printhead segment carriers positioned in the slot; and

at least one printhead segment mounted to each printhead segment carrier.

5. An inkjet printhead assembly including:

a hollow elongate member of substantially constant cross-section along its length having a base wall, two sidewall sections extending from the base wall, and at least one internal web extending inwardly from said base wall, said sidewall sections and webs defining a plurality of ink supply channels each in fluid communication with a slot extending along the elongate member, and free edges of said sidewall sections and said at least one internal web defining a periphery of a slot extending along the member;

a plurality of printhead segment carriers positioned in the slot;

at least one printhead segment mounted to each printhead segment carrier; and

means for connection of each of said ink supply channels to a respective ink supply source.

6. An inkjet printhead assembly according to claim 5, in which each printhead segment carrier includes at least one ink gallery arranged so as to connect the, or an associated one of the, ink supply channels with an ink inlet of the at least one printhead segment mounted to that printhead segment carrier.