Lexmark International, Inc.

Toshiba Tec Kabushiki Kaisha

Funai Electric Company Ltd.

Bryan McKinley

Frank Edward Anderson

Michael John Dixon

Jeanne Marie Saldanha Singh

Elios Klemo

George Nelson Woolcott

Robert Wilson Cornell

Curtis Ray Droege

Tommy Otis Lowe

Eric Spencer Hall

Yimin Guan

Thomas Jon Eade

Bruce Anthony DeBoard

Jiandong Fang

James Paul Drummond

Douglas Laurence Robertson

Xiaorong Cai

Joseph Wade Luciano

Don W Stafford

James Lesesne Bush, Iii

Daniel Scott Powell

Paul Sacoto

Marenz Sertino Ganadillo

Amanda Kay Plakosh-Angeles

Jerry Randall Reed

Mike Dixon

John A Goodman

Samuel Sexton

A system and method for reducing toner waste during startup of a print operation for electrostatic printers includes a controller that is configured to delay the biasing and rotation of a developer roller until initially uncharged portions of a photoconductive drum have rotated past the developer roller. At the start of a print operation the controller rotates a photoconductive drum and activates a charge corona to put an initial charge on the photoconductive drum, which is thereafter selectively removed in accordance with the image to be printed. The charge corona and developer roller are angularly displaced from one another such that at the start of a print job uncharged portions of the photoconductive drum are initially rotated past the developer roller. Delaying the biasing and rotation of the developer roller prevents toner from being transferred from the developer roller to the initially uncharged portions of the photoconductive drum.

Developer bias and activation delay system and method

A micro-fluid ejection head for a printer is disclosed. The micro-fluid ejection head comprises a plurality of printhead modules. Each of the plurality of printhead modules comprises an ejection chip for ejecting fluid. The micro-fluid ejection head further comprises a support frame to mount the plurality of printhead modules for creating a lengthy array of the plurality of printhead modules. The support frame is electrically coupled with the plurality of printhead modules for allowing the plurality of printhead modules to receive data and electrical power.

Micro-fluid ejection head

Methods for fabricating micro-fluid ejection heads and micro-fluid ejection heads are provided herein, such as those that use non-conventional substrates. One such micro-fluid ejection head includes a substrate having first and second glass layers disposed adjacent to a surface thereof and a plurality of fluid ejection actuators disposed adjacent to the second glass layer. The first glass layer is thicker than the second glass layer and the second glass layer has a surface roughness of no greater than about 75 &#x212b; Ra.

Micro-fluid ejection heads with multiple glass layers

A composite ceramic substrate for receiving an ejection head chip for a micro-fluid ejection head and a method for making the composite ceramic substrate. The substrate includes a high temperature previously fired ceramic base having a substantially planarized first surface and at least one fluid supply slot therethrough. A low temperature co-fired ceramic (LTCC) tape layer bundle having at least two LTCC tape layers is attached to the ceramic base at an interface between the LTCC tape layer bundle and the first surface of the ceramic base. The LTTC tape layer bundle has at least one chip pocket therein and at least one of the LTCC tape layers includes a plurality of conductors.

Composite ceramic substrate for micro-fluid ejection head

An ink jetting structure includes a substrate that has a first surface and a second surface. A heater chip is mounted to the second surface of the substrate, and includes a first set of electrical contacts. A printhead circuit member has a third surface, a fourth surface, and an opening configured to receive the heater chip with the first set of electrical contacts of the heater chip being exposed through the opening. The third surface is mounted to the second surface of the substrate. The fourth surface has a second set of electrical contacts attached by wire bonds to the first set of electrical contacts. The third surface has a third set of electrical contacts electrically coupled to the second set of electrical contacts, and electrically connected to a flexible cable for coupling to corresponding contacts on a printer.

Ink jetting structure having protected connections

The disclosure relates to circuits and methods for the manufacture of circuits, such as those which avoid the formation of undesirable short circuit paths. One such method maintains a layout area of a fluid composition receiving layer within a layout area of a dielectric layer. Another such method relates to the application of fluid composition receiving layers, conductive layers, and dielectric layers, such as in the provision of printed circuits.

Printing of multi-layer circuits

This invention addresses how an end user can create an electroluminescent device () using basic components obtained by the end user as retail items. The layers or subassemblies () are created first. Then the layers are assembled to form a completed device customized as selected by the end user. The subassemblies may be created layer-by-layer by thermal inkjet. Elements used typically will be made by manufacturers and sold commercially separately. This encompasses the printing of conductive patterns for electroluminescence on paper. In one aspect a display has a main body that may be permanent and useful indefinitely, while a part carrying the conductive pattern defining the display is readily removed and is replaced by another such part on which a new conductive pattern is printed. For tight contact with the main body, the display provides releasable pressure. Air pockets are minimized with a thin layer of highly viscous dielectric liquid.

Customizable electroluminescent displays

Methods and apparatuses to repair defects in a circuit, such as during or subsequent to the manufacture of the circuit. Defects may be detected through, for example, optical processing of an acquired image of the circuit or by measuring the strength of a signal emitted across a pair of conductor plates. If defects are detected, conductive particles may be applied to the circuit to correct the detected defects.

Apparatuses and methods for repairing defects in a circuit

The invention provides a system and method for detecting the presence of an ink jet printhead when a printhead controller fails to properly identify an installed printhead using a printhead identification device. The system includes a printhead including heater resistors and control elements, and a controller connected to the printhead via address and data lines. When the controller fails to properly identify an installed printhead, the controller operates to bias the control elements in a predetermined manner via at least one address line, detect a signal via the data lines, and generate a signal indicative of the presence of the installed printhead.

System and method for ink jet printhead detection

A first method obtains a printer having a single-printhead horizontal resolution of H dpi. Dots are printed using first and second printheads in the same print pass. The first printhead is enabled and the second printhead is non-enabled during a first portion of a carrier-movement distance equal to 1/H, and the second printhead is enabled and the first printhead is non-enabled during a second non-overlapping portion of such distance. A printer and a printhead driver for performing the first method are described. A second method obtains a printer having a single-printhead resolution of H horizontal dpi by V vertical dpi. First print data for the first printhead and second print data for the second printhead of H/2 horizontal dpi by V vertical dpi are obtained, are horizontally interlaced creating H horizontal dpi by V vertical dpi, and are printed using the first and second printheads in the same print pass.

Method, printer and printhead driver for printing using two printheads

Growing community of inventors

Lexington, KY, United States of America

Bryan McKinley