Printhead assemblies with individual capping assemblies

• US 7,771,004 B2
• Filed: 05/02/2007
• Issued: 08/10/2010
• Est. Priority Date: 05/25/1999
• Status: Expired due to Fees

• Current Assignee: Memjet Technology Ltd. (Memjet Limited)
• Original Assignee: Silverbrook Research Pty Limited
• Inventors: Silverbrook, Kia, Lapstun, Paul
• Primary Examiner(s): Meier; Stephen D
• Assistant Examiner(s): Witkowski; Alexander C
• Application Number:
  US11/743,657
• Publication Number:
  US 20070200892A1
• Time in Patent Office: 1,196 Days
• Field of Search: 347/29, 347/32, 347/42, 347/33, 248/205.1
• US Class Current: 347/32
• CPC Class Codes: B41J 13/103 for the sheet feeding section
• CPC Class Codes: B41J 13/106 for the sheet output section
• CPC Class Codes: B41J 2/16511 Constructions for cap positioning B41J2/16547 takes precedence
• 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 2/17523 Ink connection
• CPC Class Codes: B41J 2/17546 electronically
• CPC Class Codes: B41J 2/17553 Outer structure
• CPC Class Codes: B41J 2/17556 Means for regulating the pressure in the cartridge
• CPC Class Codes: B41J 2/17563 Ink filters
• CPC Class Codes: B41J 2/2114 Ejecting transparent or white coloured liquids, e.g. processing liquids B41J2/211 takes precedence
• CPC Class Codes: B42C 19/02 starting with single sheets
• CPC Class Codes: B42C 9/0006 by applying adhesive to a stack of sheets
• CPC Class Codes: B42C 9/0081 applying adhesive to individual sheets for binding them together by fusing, welding B42C9/0093
• CPC Class Codes: B42P 2261/04 Producing books by printing sheets in following order, e.g. for ordering via the Internet
• CPC Class Codes: B65H 29/34 from supports slid from under the articles
• CPC Class Codes: B65H 37/04 for securing together articles or webs, e.g. by adhesive, stitching or stapling adhering replacement to expiring web during change of web roll B65H19/18
• CPC Class Codes: G06F 2203/0337 Status LEDs integrated in the mouse to provide visual feedback to the user about the status of the input device, the PC, or the user
• CPC Class Codes: G06F 3/0321 by optically sensing the absolute position with respect to a regularly patterned surface forming a passive digitiser, e.g. pen optically detecting position indicative tags printed on a paper sheet constructional details of pen-shaped pointing devices G06F3/03545, G06F3/03542, G06F3/037
• CPC Class Codes: G06F 3/03545 : Pens or stylus
• CPC Class Codes: G06F 3/04883 : for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06F 3/1204 : resulting in reduced user or operator actions, e.g. presetting, automatic actions, using hardware token storing data
• CPC Class Codes: G06F 3/1265 : Printing by reference, e.g. retrieving document/image data for a job from a source mentioned in the job
• CPC Class Codes: G06F 3/1284 : Local printer device
• CPC Class Codes: G06K 17/00 : Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
• CPC Class Codes: G06Q 10/10 : Office automation; Time management
• CPC Class Codes: G06V 30/1423 : the instrument generating sequences of position coordinates corresponding to handwriting preprocessing or recognising digital ink G06V30/32
• CPC Class Codes: H04N 1/00127 : Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
• CPC Class Codes: H04N 1/00204 : with a digital computer or a digital computer system, e.g. an internet server programmed control between transmitter and receiver or between image input and image output device H04N1/32561
• CPC Class Codes: H04N 1/00244 : with a server, e.g. an internet server fax-servers or the like for store and forward H04N1/324
• CPC Class Codes: H04N 1/00326 : with a data reading, recognizing or recording apparatus, e.g. with a bar-code apparatus arrangements for the associated working of recording or reproducing apparatus with related apparatus G11B31/00
• CPC Class Codes: H04N 1/00358 : Type of the scanned marks
• CPC Class Codes: H04N 1/00376 : Means for identifying a mark sheet or area
• CPC Class Codes: H04N 1/00567 : Handling of original or reproduction media, e.g. cutting, separating, stacking
• CPC Class Codes: H04N 1/00968 : by scanning marks on a sheet mark-sheet input means H04N1/00355; sensing record carriers G06K7/00
• CPC Class Codes: H04N 1/23 : Reproducing arrangements
• CPC Class Codes: H04N 1/32101 : Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
• CPC Class Codes: H04N 1/32122 : in a separate device, e.g. in a memory or on a display separate from image data
• CPC Class Codes: H04N 1/32128 : attached to the image data, e.g. file header, transmitted message header, information on the same page or in the same computer file as the image for information embedded in the image H04N1/32144
• CPC Class Codes: H04N 1/32133 : on the same paper sheet, e.g. a facsimile page header
• CPC Class Codes: H04N 1/32144 : embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
• CPC Class Codes: H04N 1/32771 : in response to a request, e.g. for a particular document
• CPC Class Codes: H04N 1/32778 : using a mark-sheet or machine-readable code request
• CPC Class Codes: H04N 2201/0082 : Image hardcopy reproducer H04N2201/0091 - H04N2201/0094 take precedence
• CPC Class Codes: H04N 2201/3201 : Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
• CPC Class Codes: H04N 2201/3205 : of identification information, e.g. name or ID code H04N2201/3209 takes precedence
• CPC Class Codes: H04N 2201/3207 : of an address
• CPC Class Codes: H04N 2201/3226 : of identification information or the like, e.g. ID code, index, title, part of an image, reduced-size image
• CPC Class Codes: H04N 2201/3242 : of processing required or performed, e.g. for reproduction or before recording H04N2201/3256 and subgroups take precedence
• CPC Class Codes: H04N 2201/3243 : of type information, e.g. handwritten or text document
• CPC Class Codes: H04N 2201/3247 : Data linking a set of images to one another, e.g. sequence, burst or continuous capture mode
• CPC Class Codes: H04N 2201/3249 : data relating to a linked page or object, e.g. hyperlink
• CPC Class Codes: H04N 2201/3269 : of machine readable codes or marks, e.g. bar codes or glyphs
• CPC Class Codes: H04N 2201/327 : which are undetectable to the naked eye, e.g. embedded codes
• CPC Class Codes: H04N 2201/3271 : Printing or stamping
• CPC Class Codes: H04N 2201/3278 : Transmission
• CPC Class Codes: Y10T 156/1746 : Plural lines and/or separate means assembling separate sandwiches
• CPC Class Codes: Y10T 156/1761 : Stacked serially

Abstract

A print unit, that has one or more printhead assemblies, an individual printhead assembly having one or more printheads, the one or more printheads of the one or more printhead assemblies collectively configured to span the width of the media substrate; and one or more servicing assemblies, an individual servicing assembly configured for movement between a retracted position and a service position to service the one or more printheads on the individual printhead assembly.

Claims

1. A print unit for printing media substrate, the print unit comprising:

a printhead assembly comprising a printhead configured to span the width of the media substrate; and

a servicing assembly configured for movement between a retracted position and a service position to service the printhead on the printhead assembly,

wherein the servicing assembly comprises a rotatable elongate servicing member arranged to rotate about an axis parallel to said printhead, said rotatable elongate servicing member integrally comprising two or more radially disposed elongate working surfaces which rotate with the servicing member to service the printhead, wherein one of said working surfaces comprises a blotting material.

2. A print unit as recited in claim 1, wherein the servicing assembly is positioned so as not to interfere with the printhead in the retracted position when the printhead transfers an imaging medium onto a print media.

3. A print unit as recited in claim 1, wherein the servicing assembly has a printhead cap positioned to cover the printhead when in the service position, and wherein the servicing assembly is further configured for movement to cover the printhead with the printhead cap.

4. A print unit as recited in claim 1, comprising two printhead assemblies and a media feed path for feeding media past the printheads of both the printhead assemblies wherein the printhead assemblies are duplexed such that they print opposite sides of a sheet of the media substrate.

5. A print unit as recited in claim 1, wherein the rotatable elongate servicing member has a hollow body.

6. A print unit as recited in claim 5, wherein the blotting material extends through a slot formed along the hollow body.

7. A print unit as recited in claim 5, wherein a printhead capper is mounted to a flat surface formed along the hollow body.

8. A print unit as recited in claim 7, wherein the printhead capper includes a housing attached to the flat surface.

9. A print unit as recited in claim 8, wherein the printhead capper includes a seal member mounted to the housing.

10. A print unit as recited in claim 9, wherein the printhead capper includes an elastomeric member mounted to the capper seal member to contact a nozzle guard of the printhead.

11. A print unit as recited in claim 1, wherein one of the elongate working surfaces comprises a surface of a printhead capper disposed parallel to the axis.

12. A print unit as recited in claim 11, wherein one of the working surfaces comprises a flat platen surface formed along the hollow body to support print media during printing.

13. A print unit as recited in claim 1, wherein the printhead capper extends from an outer surface of the hollow body.

14. A print unit as recited in claim 1, including a rotary shaft extending from either end of the rotatable elongate servicing member.