Printhead micro-electromechanical nozzle arrangement with motion-transmitting structure

• US 8,123,336 B2
• Filed: 05/08/2011
• Issued: 02/28/2012
• Est. Priority Date: 07/15/1997
• Status: Expired due to Fees

• Current Assignee: Memjet Technology Ltd. (Memjet Limited)
• Original Assignee: Silverbrook Research Pty Limited
• Inventors: Silverbrook, Kia
• Primary Examiner(s): DO, AN H
• Application Number:
  US13/103,090
• Publication Number:
  US 20110211020A1
• Time in Patent Office: 296 Days
• Field of Search: 347/20, 347/54, 347/56, 347/65
• US Class Current: 347/54
• CPC Class Codes: B41J 2/14427 Structure of ink jet print heads with thermal bend detached actuators
• CPC Class Codes: B41J 2/1601 Production of bubble jet print heads B41J2/1606, B41J2/162 take precedence
• CPC Class Codes: B41J 2/1623 bonding and adhesion
• CPC Class Codes: B41J 2/1626 etching
• CPC Class Codes: B41J 2/1628 dry etching
• CPC Class Codes: B41J 2/1629 wet etching
• CPC Class Codes: B41J 2/1631 photolithography
• CPC Class Codes: B41J 2/1632 machining
• CPC Class Codes: B41J 2/1635 dividing the wafer into individual chips
• CPC Class Codes: B41J 2/1637 molding
• CPC Class Codes: B41J 2/1639 sacrificial molding
• CPC Class Codes: B41J 2/1642 thin film formation by CVD [chemical vapor deposition]
• CPC Class Codes: B41J 2/1643 thin film formation by plating
• CPC Class Codes: B41J 2/1645 thin film formation by spincoating
• CPC Class Codes: B41J 2/1646 thin film formation by sputtering
• CPC Class Codes: B41J 2/1648 Production of print heads with thermal bend detached actuators
• CPC Class Codes: B41J 2/16585 for paper-width or non-reciprocating print heads
• CPC Class Codes: B41J 2/17503 Ink cartridges
• CPC Class Codes: B41J 2/17513 Inner structure
• CPC Class Codes: B41J 2/17596 Ink pumps, ink valves
• CPC Class Codes: B41J 2002/041 : Electromagnetic transducer
• CPC Class Codes: B41J 2002/14435 : Moving nozzle made of thermal bend detached actuator
• CPC Class Codes: B41J 2002/14475 : characterised by nozzle shapes or number of orifices per chamber
• CPC Class Codes: B41J 2202/21 : Line printing
• CPC Class Codes: B82Y 30/00 : Nanotechnology for materials or surface science, e.g. nanocomposites
• CPC Class Codes: G06F 1/1626 : with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 21/79 : in semiconductor storage media, e.g. directly-addressable memories
• CPC Class Codes: G06F 21/86 : Secure or tamper-resistant housings
• CPC Class Codes: G06F 2221/2129 : Authenticate client device independently of the user
• CPC Class Codes: G06K 1/121 : by printing code marks applying code marks to labels B65C9/46; marking or coding completed packages B65B61/26
• CPC Class Codes: G06K 19/06037 : multi-dimensional coding
• CPC Class Codes: G06K 19/073 : Special arrangements for circuits, e.g. for protecting identification code in memory protection against unauthorised use of computer memory G06F12/14
• CPC Class Codes: G06K 7/14 : using light without selection of wavelength, e.g. sensing reflected white light G06K7/10831 - G06K7/1097 take precedence
• CPC Class Codes: G06K 7/1417 : 2D bar codes
• CPC Class Codes: G11C 11/56 : using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency
• CPC Class Codes: H04N 1/2154 : the still video camera incorporating a hardcopy reproducing device, e.g. a printer
• CPC Class Codes: H04N 2101/00 : Still video cameras
• CPC Class Codes: H04N 23/00 : Cameras or camera modules comprising electronic image sensors; Control thereof
• CPC Class Codes: H04N 5/2628 : Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation
• CPC Class Codes: Y10T 29/49083 : Heater type
• CPC Class Codes: Y10T 29/49105 : Switch making
• CPC Class Codes: Y10T 29/49117 : Conductor or circuit manufacturing
• CPC Class Codes: Y10T 29/49204 : Contact or terminal manufacturing
• CPC Class Codes: Y10T 29/49401 : Fluid pattern dispersing device making, e.g., ink jet

Abstract

A micro-electromechanical nozzle arrangement for a printhead integrated circuit the nozzle arrangement includes a nozzle chamber bounded by a distal sidewall and a proximal sidewall, and capped by a roof defining an ink ejection port; a paddle located in the nozzle chamber below the ink ejection port; an actuator arm positioned outside of the nozzle chamber in the vicinity of the proximal sidewall, the actuator arm having a fixed end fixed to a substrate of the nozzle arrangement and a working end displaceable towards and away from the substrate; and a motion transmitting structure interconnecting the working end of the actuator arm and the paddle. The motion transmitting structure defines part of the proximal sidewall.

Claims

1. A micro-electromechanical nozzle arrangement for a printhead integrated circuit the nozzle arrangement comprising:

a nozzle chamber bounded by a distal sidewall and a proximal sidewall, and capped by a roof defining an ink ejection port;

a paddle located in the nozzle chamber below the ink ejection port;

an actuator arm positioned outside of the nozzle chamber in the vicinity of the proximal sidewall, the actuator arm having a fixed end fixed to a substrate of the nozzle arrangement and a working end displaceable towards and away from the substrate; and

a motion transmitting structure interconnecting the working end of the actuator arm and the paddle, wherein

the motion transmitting structure defines part of the proximal sidewall.

2. The nozzle arrangement of claim 1, wherein the motion-transmitting structure includes an effort formation in engagement with the working end of the actuator arm, and a load formation in engagement with the paddle.

3. The nozzle arrangement of claim 2, wherein the motion-transmitting structure further comprises a lever arm formation interconnecting the effort and load formations.

4. The nozzle arrangement of claim 1, wherein the motion-transmitting structure and a roof of the nozzle chamber define a slotted opening for accommodating relative movement of the motion transmitting structure and the roof.

5. The nozzle arrangement of claim 4, wherein the slotted opening is interposed between a pair of ridges extending from the motion-transmitting structure and the roof, said ridges dimensioned to effect formation of a fluidic seal between the ridges.