Host Printer Emulation Support on Web-based Client-Server System
Original Publication Date: 2002-May-19
Included in the Prior Art Database: 2003-Jun-21
Disclosed is a web-based client-server system for enabling host pring emulation support. This is to be implemented as a three-tier system. The first tier is a legacy host system that sends host print jobs. The second tier is a server that transforms host print data stream into an intermediate format that does not lose format information. Adobe Portable Document Format (PDF) is one of the formats that can be used for that purpose. The last third tier is a client, which uses a standard web browser with an appropriate plug-in program for the intermediate format used in the second tier server. When a host print job is sent, it is transformed into an intermediate format by a server and sent to client and then it is displayed in a web browser. The following figure illustrates how this disclosure is to be implemented using PDF: Adobe Acrobat Printout Reader A existing system is a two tier system that consists of a host and a client, on which a host print emulation program sends host print jobs to a client-attached printer. With this invention, client does not have to have a host print emulation program running and user can browse host print jobs in a web browser without losing format information.