Distributorship services, and on-line wholesale and retail store services, for computer printers, multifunction printers, telefacsimile machines, photocopiers, computers, magnetic and optical data storage drives, optical scanners, computer network routers, computer network hubs, computer network cards, computer power supplies, computer batteries, toner cartridges, ink cartridges, and subassemblies and components thereof; cost management and cost containment services in the field of computer and multifunction printer management; cost management and cost containment services in the field of reduced consumption of printer consumables including paper and toner