Device-specific firewall
First Claim
Patent Images
1. A printing system, comprising:
- a printer including;
a processor; and
a printing component in communication with said processor; and
a filtering program associated with said processor so as to control printing of a file by said printing component based on at least one of a presence or absence of at least one prespecified characteristic from a packet including said file.
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Accused Products
Abstract
A device-specific filtering method includes receiving a packet from a network, evaluating the packet to determine whether or not it or a file thereof has one or more undesirable characteristics and/or desirable characteristics, and controlling further transmittal and/or processing of one or more files of the packet based upon such evaluation. The device-specific filtering method may be effected by a destination device, such as a printer, for the transmitted packet or by a computer associated with a destination device. Programs, apparatus, and systems that effect the filtering method are also disclosed.
27 Citations
23 Claims
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1. A printing system, comprising:
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a printer including;
a processor; and
a printing component in communication with said processor; and
a filtering program associated with said processor so as to control printing of a file by said printing component based on at least one of a presence or absence of at least one prespecified characteristic from a packet including said file. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A device-specific filtering method, comprising:
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transmitting a packet comprising at least one file from a source computer, across a network, to a device of said network;
evaluating at least one prespecified characteristic of said packet following passage of said packet through a server of said network; and
controlling at least one of further transmission of said packet to said device and processing of said at least one file of said packet by said device based on said evaluating. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A system for filtering a file transmitted to a destination device, comprising:
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a processor in communication with a network across which the file has been transmitted; and
a filtering program associated with said processor so as to control at least one of transmission of a packet including at least one file to the destination device and processing of said at least one file by the destination device based on at least one of a presence or absence of at least one prespecified characteristic from said packet including said at least one file. - View Dependent Claims (21, 22, 23)
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Specification