Inkjet cartridge with ink reservoir core and releasable housing

• US 7,404,633 B2
• Filed: 11/03/2006
• Issued: 07/29/2008
• 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): Shah; Manish S
• Application Number:
  US11/592,181
• Publication Number:
  US 20070046754A1
• Time in Patent Office: 634 Days
• Field of Search: 347 85- 87, 347/108, 347/101, 347/104, 400/613
• US Class Current: 347/101
• CPC Class Codes: B41J 15/02 Web rolls or spindles; Attaching webs to cores or spindles
• CPC Class Codes: B41J 15/044 Cassettes or cartridges containing continuous copy material, tape, for setting into printing devices
• CPC Class Codes: B41J 2/16585 for paper-width or non-reciprocating print heads
• CPC Class Codes: B41J 2/17513 Inner structure
• CPC Class Codes: B41J 2/17553 Outer structure
• CPC Class Codes: B41J 2/17596 Ink pumps, ink valves
• CPC Class Codes: B41J 2202/21 Line printing
• 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 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: G07F 7/08 by coded identity card or credit card or other personal identification means without personal verification means G07F7/02
• CPC Class Codes: G07F 7/086 by passive credit-cards adapted therefor, e.g. constructive particularities to avoid counterfeiting, e.g. by inclusion of a physical or chemical security-layer for security documents G07D7/00; for the reading of record-carriers in general G06K7/00; for the design of coded credit-cards G06K19/10
• CPC Class Codes: G07F 7/12 Card verification
• 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 1/0044 for image preview or review, e.g. to help the user position a sheet
• CPC Class Codes: H04N 1/2112 using still video cameras
• 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

Abstract

A print roll unit includes an elongate ink reservoir core defining a plurality of ink chambers which each extend along the core. The chambers are isolated to store respective inks. A roll of print media includes a tubular former in which the core can be received and a length of print media which is wound upon the former. A housing includes a pair of molded covers which can be fastened together in a releasable manner to house the roll of print media. The core includes an elongate part defining the ink chambers and a rubber sealing cap which can be engaged with an end of the molded part to seal the ink chambers.

Claims

1. A print roll unit that comprises

an elongate ink reservoir core defining a plurality of ink chambers which each extend along the core, the chambers being isolated to store respective inks;

a roll of print media including a tubular former in which the core can be received and a length of print media which is wound upon the former; and

a housing including a pair of molded covers which can be fastened together in a releasable manner to house the roll of print media,

wherein the core includes an elongate molded part defining the ink chambers, and a rubber sealing cap which can be engaged with an end of the molded part to seal the ink chambers.

2. A print roll unit as claimed in claim 1, wherein an end of the core defines a plurality of serpentine breathing channels each in fluid communication with a respective ink chamber to facilitate the egress of ink from the ink chambers.

3. A print roll unit as claimed in claim 2, wherein the core further includes sealing tape which covers the breathing channels.

4. A print roll unit as claimed in claim 1, wherein the core defines a plurality of longitudinally extending ribs which can engage with the inside of the tubular former.

5. A print roll unit as claimed in claim 1, wherein the molded covers define complementary formations to enable the molded covers to be snap fitted together.

6. A print roll unit as claimed in claim 1, wherein one of the molded covers defines an elongate slot through which the print media can exit the print roll unit.

7. A print roll unit as claimed in claim 1, further including a plurality of pinch rollers which are each rotationally mounted to the housing and are arranged to de-curl the print media as it is unwound from the roll.

8. A camera including a print roll unit as claimed in claim 1, and a printer in fluid communication with the core and configured to print captured images on the print media with ink stored in the ink chambers.