Lexmark International, Inc.

Steven Lane Duncan

Charles Edward Grieshaber

David Keith Lane

Evan Glenn Goldey

Robert Jerome Borchers

Howard Charles Cochran

Stephen D Skubik-Peplaski

Stacey K Gordon

William G Flowers

Erik Nils Ackerman

Methods and apparatus contemplate a system for securing imaging devices on a network by allowing a system administrator to apply different security protocols to specific functions of an imaging device. This allows a system administrator to customize the functions of the imaging device by restricting the particular functions to only those users who need them, as opposed to the global security policies currently required. The system uses a computer program product, including executable instructions, which can be stored on the imaging device itself, a network server, and/or some other device attached to the network. The computer program product can be installed directly from the manufacturer, through computer readable media, or by downloading. The product interfaces directly with the imaging device to determine what imaging functions are present and to set what security protocols are required to access those functions.

Method and apparatus for managing multiple security protocols and users for imaging devices

A printer is provided which has a special Emulation Manager function as well as a &ldquo;code sniffer&rdquo; function, in which print data received is sent to a code sniffer buffer. A code sniffer function automatically determines the type of emulator that should be called to perform the interpretation or rendering of this print job, and if the code sniffer determines that the correct emulator is PostScript, then the code sniffer scans the data for any &ldquo;special tokens.&rdquo; If a special token is found, the PostScript emulator determines if the special token string data is part of a PostScript comment. If it is in the correct format, then the PostScript emulator sets the &ldquo;mode flag&rdquo; to the &ldquo;MacBinary&rdquo; state, and the code sniffer ceases any further filtering of control characters and disables any change of emulator command that may be received during this print job. The rest of the print job is then interpreted as RAW binary data by the PostScript emulator, until a &ldquo;UEL&rdquo; string is encountered.

Method for automatically detecting and processing binary postscript print jobs

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Lexington, KY, United States of America

Steven Lane Duncan