To improve safety in security by printing a document only when an intended receiver executes conversation with a printing device in order to take-out the previously presented document and print it.
A client ciphers the document furthermore before transmitting it to a printing server in order to increase security and the printing device 140 decodes the ciphered document before printing. A document storage device 130 receives a ciphered document file and related user identifying information and stores them. Besides, the device 130 receives a request for transferring the ciphered document file having designated identifying information to a designated position. A server receives a request from a printer 140 as against the specified ciphered document, researches the designated ciphered document and transfers the document which is ciphered in a request printer.
GUPTA DIPANKAR
VAN WILDER BRUNO EDGARD
