Abstract: A continuous inkjet printer is described, which includes a combination of dispersion agitation means, heated ink supply and printhead and tailored, heated, filtration regime. The use of this combination allows the printing of inks containing a non-magnetic pigment that exhibits “soft settling” upon standing.

Abstract: A travel permissions communication interface system is provided, having a scanner, a identifying characteristic reader, a computer, a comparator, a connection device, and a display, all of which being managed by a computer operably connected therebetween. The scanner (a) reads a portable identification carrier onto which is encoded identifying characteristic data of at least one person; (b) sends such identification data to the computer for verification of authenticity of the carrier and (c) extracts a identifying characteristic of a certain identifying characteristic parameter from the identifying characteristic data encoded on the carrier. The identifying characteristic reader reads a same identifying characteristic parameter of the person purported to be identified by the carrier. The comparator compares the encoded identifying characteristic with the extracted identifying characteristic to authenticate the person associated with the carrier.

Abstract: A data storage device is provided in which encoded binary machine-readable, digital hierarchical data may be stored. The data is represented by X-nary characters in a matrix. Two different hierarchical 2-D barcodes may be superimposed to increase the data storage capacity. The device is integrated in a system having a scanner, a identifying characteristic reader, a computer, a comparator, a connection device, and a display, all of which being managed by a computer operably connected therebetween. The scanner (a) reads a portable identification carrier onto which is encoded identifying characteristic data of at least one person; (b) sends such identification data to the computer for verification of authenticity of the carrier and (c) extracts a identifying characteristic of a certain identifying characteristic parameter from the identifying characteristic data encoded on the carrier.