David W Lovelace

US Patent:

7898702, Mar 1, 2011

Filed:

Jul 31, 2007

Appl. No.:

11/831094

Inventors:

Edward A. Hill - San Diego CA, US
David M. Lovelace - San Diego CA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

H04N 1/04
H04N 1/46

US Classification:

358474, 358505

Abstract:

An apparatus and method relating to a least one wheel rotatable about a first axis while movably supporting a reflected light gathering unit extending along a second axis are disclosed.

US Patent:

20120236371, Sep 20, 2012

Filed:

Mar 17, 2011

Appl. No.:

13/050369

Inventors:

Edward A. HILL - Oceanside CA, US
Stephan W. Emmenegger - San Diego CA, US
David M. Lovelace - San Diego CA, US
Ryan M. Smith - San Diego CA, US

International Classification:

H04N 1/04

US Classification:

358475, 358497

Abstract:

A scanner assembly comprising the following components. A scan module having a first surface and configured to receive an image oriented along the first surface. A carriage having a thickness no thicker than a thickness of the scan module perpendicular to the first surface, the carriage configured to receive the scan module and to move the scan module in a direction of travel. A v-bearing coupled to the carriage proximate to one end of the carriage and protruding from the carriage in a direction perpendicular to the first surface. A scan base having a groove and configured to receive the v-bearing. A belt drive configured to move the v-bearing in the groove of the scan base.

US Patent:

20130077114, Mar 28, 2013

Filed:

Sep 23, 2011

Appl. No.:

13/243376

Inventors:

David Bradley Short - San Diego CA, US
Steve O. Rasmussen - Vancouver WA, US
David M Lovelace - San Diego CA, US
Ryan Lane Wilday - Escondido CA, US

International Classification:

G06K 15/02

US Classification:

358 113

Abstract:

Methods, printers, and control panels for printers are disclosed. An example printer includes a control panel, a print substrate path exit to output a print substrate from the printer in response to a printing task, and a control panel actuator to move the control panel from a first position in which the control panel at least partially obstructs a print substrate from passing through the print substrate path exit to a second position in which the control panel does not obstruct the print substrate from passing through the print substrate path exit.

US Patent:

20180170060, Jun 21, 2018

Filed:

Feb 20, 2018

Appl. No.:

15/900167

Inventors:

- Dublin 2, IE
Rajan Ramaswamy - San Diego CA, US
Tinh Tran - San Diego CA, US
David Lovelace - San Diego CA, US

International Classification:

B41J 2/165
B41J 25/304
B41J 25/34
B41J 25/00

Abstract:

A print bar assembly includes: a mounting frame having a pair of opposite first and second sidewalls extending parallel to a media feed direction, the first sidewall having an upwardly extending first guide slot defined between opposite first bearing surfaces; a print bar carriage slidably received within the mounting frame and an actuation mechanism operatively connected to the print bar carriage for lifting and lowering the print bar carriage relative to the mounting frame. The print bar carriage includes a chassis, a printhead and a pair of first bearings rotatably received in the first guide slot. During sliding movement of the print bar carriage, the pair of first bearings travel within the first guide slot and bear against the first bearing surfaces to constrain rotational movement of the print bar carriage.

US Patent:

20170282567, Oct 5, 2017

Filed:

Jun 16, 2017

Appl. No.:

15/625804

Inventors:

- Dublin, IE
Rajan Ramaswamy - San Diego CA, US
Tinh Tran - San Diego CA, US
David Lovelace - San Diego CA, US

Assignee:

MEMJET TECHNOLOGY LIMITED - Dublin

International Classification:

B41J 2/165
B41J 25/00
B41J 25/34
B41J 25/304

Abstract:

A method of wiping a plurality of printheads positioned in a staggered overlapping arrangement across a width of a media feed path, each printhead having a respective wiper associated therewith. The wipers for neighboring printheads are moved in opposite directions with respect to each other.

US Patent:

20160152032, Jun 2, 2016

Filed:

Feb 3, 2016

Appl. No.:

15/015025

Inventors:

- Dublin, IE
Rajan Ramaswamy - San Diego CA, US
Tinh Tran - San Diego CA, US
David Lovelace - San Diego CA, US

International Classification:

B41J 2/165

Abstract:

A method of maintaining a printer including a plurality of printheads positioned in a staggered overlapping arrangement across a width of a media feed path. Each printhead has a respective wiper and the method includes the step of moving the wipers towards respective printheads in a direction parallel to a media feed direction. The wipers for neighboring printheads are moved in opposite directions towards their respective printheads.

US Patent:

20150246546, Sep 3, 2015

Filed:

May 14, 2015

Appl. No.:

14/712742

Inventors:

- Dublin, IE
Rajan Ramaswamy - San Diego CA, US
Tinh Tran - San Diego CA, US
David Lovelace - San Diego CA, US

International Classification:

B41J 2/165

Abstract:

A modular printer includes: a media feed path defining a media feed direction and a plurality of printer modules positioned in a staggered overlapping arrangement so as to extend across a width of the media feed path. Each printer module includes a printhead and a respective maintenance sled for slidably moving towards the printhead in a direction parallel to the media feed direction. Further, the maintenance sleds for neighboring printer modules are configured to move in opposite directions towards their respective printheads.

US Patent:

20150138272, May 21, 2015

Filed:

Aug 29, 2014

Appl. No.:

14/473811

Inventors:

- Dublin 2, IE
Rajan Ramaswamy - San Diego CA, US
Tinh Tran - San Diego CA, US
David Lovelace - San Diego CA, US

International Classification:

B41J 25/00
B41J 2/165

US Classification:

347 29, 347 37

Abstract:

A printer assembly includes: a housing having referencing slots defined in opposite sidewalls; a stop positioned towards a lower end of each referencing slot; a print bar carriage slidably received within the housing; and a lift mechanism for lifting the print bar carriage relative to the housing. The print bar carriage includes: a chassis; a printhead supported by the chassis; and a pair of lugs, each lug being slidably received in a respective referencing slot of the housing. Each stop has a datum surface which defines a printing position of the print bar carriage, the print bar carriage being in the printing position when each lug is in abutting engagement with a respective datum surface.