Desktop three-dimensional (3D) printers are becoming commonplace in business offices, public libraries, university labs and classrooms, and even private homes; however, these settings are generally not designed for exposure control. Prior experience with a variety of office equipment devices such as laser printers that emit ultrafine particles (UFP) suggests the need to characterize 3D printer ...

This article elucidates the need to consider inherent spatial transfer function (blur), of any thermographic instrument used measure thermal fields. Infrared data were acquired from a modified, commercial, laser-based powder bed fusion printer. A validated methodology was correct for errors in measured The found make difference 40% signal levels and 174 °C calculated effective temperature. grad...

This paper describes an automatic, repeatable system to quantify print engine color registration at multiple points on a page, and discusses test target design, image acquisition and data analysis. Measurements from six color laser printers were used to develop these techniques, and the results illustrated considerable localized registration variations within a page in both process (paper-movem...

Several methods exist for printer identification from a printed document. We have developed a system that performs printer identification using intrinsic signatures of the printers. Because an intrinsic signature is tied directly to the electromechanical properties of the printer, it is difficult to forge or remove. There are many instances where existance of the intrinsic signature in the prin...

The digital revolution has replaced the use of printed documents with their counterparts. However, many applications require both due to several factors, including challenges security, installation costs, ease use, and lack expertise. Technological developments in domain have also resulted easy availability high-quality scanners, printers, image editing software at lower prices. Miscreants leve...

Abstract As 3D printing becomes an increasingly popular technology, knowledge of the processes employed by a printer becomes more important. In this paper, one particular printer, the Zcorp Spectrum Z510, is studied in terms of its color production. Two approaches to a spectral model are evaluated in terms of their ability to predict output colors of the printer based on input RGB values. The m...

3D printing has revolutionized the field of microfluidics manufacturing by simplifying typical processes offering a considerable accuracy and user-friendly procedures. For its part, laser ablation proves to be versatile technology perform detailed surface micropatterning. A hybrid technique that combines both technologies is proposed, employing them in their most suitable range dimensions. This...

A generic compact printer and a corresponding parser are constructed These programs transform values of any regular datatype to and from a bit stream The algorithms are constructed along with a proof that printing followed by parsing is the identity Since the binary representation is very compact the printer can be used for compressing data possibly supplemented with some standard algorithm for...