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System for Detecting Inactive Inkjet Jets in Three-dimensional Object Printing Using Optical Sensors and Reversible Thermal Substrates

A technology of optical sensors and thermal substrates, applied in the field of printers, can solve problems such as non-compliance with specifications

Active Publication Date: 2018-03-02
XEROX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, print jobs that take hours or days can produce objects that are out of specification due to non-working jets in the printhead

Method used

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  • System for Detecting Inactive Inkjet Jets in Three-dimensional Object Printing Using Optical Sensors and Reversible Thermal Substrates
  • System for Detecting Inactive Inkjet Jets in Three-dimensional Object Printing Using Optical Sensors and Reversible Thermal Substrates
  • System for Detecting Inactive Inkjet Jets in Three-dimensional Object Printing Using Optical Sensors and Reversible Thermal Substrates

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Embodiment Construction

[0011] For a general understanding of the context of the devices disclosed herein, as well as details of the devices, reference is made to the accompanying drawings. In the drawings, like reference numerals denote like elements.

[0012] figure 1 The arrangement of components in the printer 100 that produces the three-dimensional object part 10 is shown. As used herein, the term "three-dimensional printer" refers to any device that ejects material to form a three-dimensional object with reference to image data of the object. Printer 100 includes support material container 14 , build material container 18 , a pair of inkjet printheads 22 , 26 , build substrate 30 , planar support member 34 , columnar support member 38 , actuator 42 , and controller 46 . Tubing 50 connects printhead 22 to support material container 14 and tubing 54 connects printhead 26 to build material container 18 . The two inkjet printheads are operated by the controller 46 with reference to the three-dim...

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PUM

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Abstract

The present invention provides an apparatus for detecting inoperative ink jets during printing of a three-dimensional object. The apparatus includes a reversible thermal substrate that changes the optical density in a region where a drop of material is ejected onto the substrate. The optical sensor generates image data of the substrate after a drop of material is ejected onto the substrate and analyzes the image data to identify inoperative jets.

Description

technical field [0001] The apparatus disclosed herein relates to printers that produce three-dimensional objects, and more particularly to the accurate detection of inoperative jets in such printers. Background technique [0002] Digital 3D manufacturing, also known as digital additive manufacturing, is the process of manufacturing three-dimensional solid objects of virtually any shape from digital models. 3D printing is an additive process in which one or more print heads eject successive layers of material in different shapes on a substrate. Three-dimensional printing is distinguishable from traditional object forming techniques, such as cutting or drilling, which rely primarily on removing material from a workpiece through a subtractive process. [0003] Producing three-dimensional objects with these printers can take hours, and for some objects, even days. One problem that arises in the production of three-dimensional objects with three-dimensional printers is the cons...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/112B29C64/209B29C64/20B29C64/386B33Y30/00B33Y50/00
CPCB41J2/16579B41J2/2142B33Y30/00B41J2/17509B41J29/02B29C64/40B29C64/35B29C64/112B29C64/393B33Y40/00B33Y40/20B33Y50/02B29C64/209B41J2/125B41J29/393G01N21/84B41J2/0451B41J2002/16576B41J2/04558B41J2/04586B29K2105/0058
Inventor V·L·沃内J·L·贾克比M·R·麦克劳克林
Owner XEROX CORP