42 Consulting services for introduction of computer software for printers, electronic copying machines, scanners, facsimile machines, electronic copying machines with functions of printer, scanner and facsimile machine, personal computers, server computers and computer network hubs, switches and routers; consulting services for introduction of computer software for document management system; programming, designing and maintenance of computer software for printers, electronic copying machines, scanners, facsimile machines, electronic copying machines with functions of printer, scanner and facsimile machine, personal computers, server computers and computer network hubs, switches and routers; programming, designing and maintenance of computer software for document management system; rental of printers for computers, scanners for computers, personal computers and server computers