# US 7,611,239 B2 · Printer having coded capping mechanism

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- Number: US 7,611,239 B2
- Document ID: US7611239B2
- Status: Granted
- Kind: B2
- Application number: 11/293,815
- Filed: 2005-12-05
- Published: 2007-06-07
- Granted: 2009-11-03
- Earliest claimed: 2005-12-05
- Assignees: Silverbrook Research Pty Ltd
- Inventors: Kia Silverbrook; Tobin Allen King; Gregory Michael Tow; Attila Bertok; Geoffrey Philip Dyer; Robert John Brice; Paul Ian Mackey; Christopher Hibbard
- Web page: https://patentgrep.com/patent/US7611239B2

## CPC

- B41J 29/02: Framework
- B41J 2/17513: {Inner structure}
- B41J 2/1752: {Mounting within the printer}
- B41J 29/13: Cases or covers
- B41J 29/38: Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS

## Abstract

An inkjet printer comprising: a body; a first gear assembly mounted to the body so as to cooperate with a motor gear for driving rotation of the first gear assembly, the first gear assembly having a code feature; and a second gear assembly mounted to the body so as to cooperate with the first gear assembly to be rotatable therewith, the second gear assembly, in use, cooperating with a capper for capping a printhead so that the rotation of the second gear assembly moves the capper out of and into its capping position, wherein the code feature of the first gear assembly is arranged to cooperate with a holding feature of a mounting arrangement used to mount the second gear assembly to the body, the code feature being configured so that the cooperation with the holding feature maintains the first gear assembly at a predetermined position during the mounting of the second gear assembly.

## Claims

### Claim 1

An inkjet printer comprising:
a body;
a first gear assembly mounted to the body so as to cooperate with a motor gear for driving rotation of the first gear assembly, the first gear assembly having a code feature; and
a second gear assembly mounted to the body so as to cooperate with the first gear assembly to be rotatable therewith, the second gear assembly, in use, cooperating with a capper for capping a printhead so that the rotation of the second gear assembly moves the capper out of and into its capping position,
wherein the code feature of the first gear assembly is arranged to cooperate with a holding feature of a mounting arrangement used to mount the second gear assembly to the body, the code feature being configured so that the cooperation with the holding feature maintains the first gear assembly at a predetermined position during the mounting of the second gear assembly,
the first gear assembly comprises first and second gears connected by a common shaft, the shaft being supported by the body to mount the first and second gears thereto, the first gear meshing with the motor gear and the second gear meshing with the second gear assembly, and
the first gear incorporates the code feature, the code feature being a protrusion arranged to protrude from part of the outer surface of the first gear with respect to the body.

### Claim 2 (depends on 1)

An ink jet printer according claim 1, wherein the protrusion has a semi-cylindrical shape.

### Claim 3 (depends on 1)

An inkjet printer according to claim 1, wherein the printhead is incorporated in a printing cartridge which is removably engageable with the printer.

### Claim 4 (depends on 3)

An inkjet printer according to claim 3, wherein the capper is incorporated in the printing cartridge.