Banding is one of the image artifacts for electrophotographic (EP) printers. Due to its origin within the EP process, it can also be viewed as an intrinsic signature of the specific printer. Modulating the EP process to generate banding signals that are below the human visual threshold but can be detected by effective detection approach can further extend the signature capacity. This deliberate...

The quality of the printed output from an electrophotographic printer or copier is determined by the performance of, and the interactions among, the major components in the system: namely, the photoreceptor, the charging subsystem, the exposure subsystem, and the development subsystem. The existence of the many variables which affect component interactions make prediction of print quality quite...

Textile printing systems are needed that will meet the requirements of time-driven, demand activated manufacturing. Electrophotography and ink-jet printing are technologies that have the potential of meeting these requirements. Textile-specific, electrophotographic and ink-jet printing toners/inks must be developed if these technologies are to gain acceptance in the textile industry. The develo...

The title compound, [Fe(2)Na(2)(C(23)H(14)ClN(3)O(3))(4)(C(2)H(3)N)(2)(H(2)O)(4)]·2H(2)O, is a hydrated Fe-azo complex dimer that is used as a charge-control agent in electrophotography. The mol-ecule is a centrosymmetric dimer with two octa-hedral Fe(III) units linked by two bridging five-coordinate Na(I) cations. Each Fe(III) atom is chelated by the N and two O atoms from two 3-anilinocarbony...

The OPC is one of the most important component in the electrophotography process. So far its surface defects which degrade print quality were inspected by human-eye. We have developed the OPC surface inspection system employing an image processing technique. In this paper, we describe (1) an optical system to get the OPC surface image, (2) its analysis algorithm to specify the various defects a...

OBJECTIVES The purpose of this study is to explore how osteopathy treatments influence certain measurable aspects of the human biofield; namely, various calculated parameters of finger corona discharge patterns produced by high-voltage electrophotography. METHODS The Gas Discharge Visualization camera was used to assess subjects before and after osteopathy treatment. Thirty-three (33) apparen...

Printing material and prints undergo changes during ageing which can be recognized in deterioration in the physical, chemical and optical properties. The aim of this work is to determine the optical changes of the prints caused by ageing of the printing material and of the prints obtained by the application of the indirect electrophotography. The change of the screen elements in lighter halfton...