Method and apparatus for encrypted print processing

Details Method and apparatus for encrypted print processing Method and apparatus for encrypted print processing

2005-09-07

2010-12-14

Arani, Taghi T (Department: 2438)

Cryptography

Electric signal modification

Having production of printed copy

C358S001900, C358S001130, C380S055000, C713S150000

Reexamination Certificate

active

07853017

ABSTRACT:
According to a print controller of this embodiment, when a part of print data is specified to be encrypted, a client102determines functions supported by a printer104. If the printer104is capable of handling partial encryption, the client102encrypts the specified portion, specifies the portion by PDL commands or XML tags, and sends the print data to the printer. The printer104decrypts it and then prints it out. Meanwhile, in the case of a printer151which does not support partially encrypted printing, printing is terminated, or the print data is sent to the printer151after replacing the portion specified to be encrypted with a different character string.

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