Abstract: Systems and methods for providing use of information technology in exchange for a fee based more precisely on actual or near actual use. Information technology may include software and/or hardware, which may be grouped into a convergent infrastructure or convergent architecture. Use of the hardware and/or software may be monitored, such as with metering software, by measuring usage metrics to determine resource usage. The raw metrics data may be converted into at least one common unit of measure. The raw or converted metrics may be used to determine a fee based on resource usage. The fee may be based on a fee rate, determined or calculated with reference to various information such as the type of information technology being used. The user may be charged the fee based on actual past usage, an approximation of past usage, an estimation of future usage, or a different usage basis.

Abstract: The present invention relates to an ink composition for ink jet printers comprising an amorphous bis amide, a colorant and a solvent.

Abstract: A substantially aqueous composition for drop on demand ink jet printing comprising a fluid vehicle with greater than 50% by weight water, a water soluble dye in the range of 1-10% by weight, a lower alkylene glycol plasticizer in the range of concentration of 1-20% by weight, and in the range of 1-10% by weight, a water soluble additive which is a low molecular weight heterocyclic, bifunctional monomer or dimer in which the two functional groups are either two imide groups, or a hydantoin bearing a carboxylic acid group, with both the imide groups and the amide groups being capped with hydroxyalkylene units.

Abstract: Certain phenazine leucodyes are useful in electrochromic recording systems.

Abstract: An electrochromic printable medium which includes a substrate coated with certain organic compounds and with the reduced form of an oxidizing agent; and use thereof for electrochromic printing.

Abstract: A printing medium which includes a substrate coated with a compound of the formula: ##STR1## wherein R.sub.3 is a ring group having certain substituents in at least one ortho position with respect to the atom connected to C.dbd.O; and each R.sub.1 and R.sub.2 individually is aryl or alkaryl or are interconnected to form with the nitrogen atom a phenothiazine, phenoxazine, or phenazine or substituted derivative; and coated with an oxidizing agent or reduced form thereof; and method of use.

Abstract: An electrochromic recording substrate comprising bromide ions and a leucodye having the structure ##STR1## wherein R is lower alkyl, lower alkoxy, lower thioalkyl, lower dialkylamino, or diarylamino.

Abstract: A medium for electrochromic recording is provided by treating paper with a water soluble leuco methylene blue compound having the formula ##STR1## wherein R is a sulfonated aromatic or sulfonated aliphatic moiety.