Image processing apparatus, method, and computer-readable storage medium for storing programs used therein
AssigneeCanon Kabushiki Kaisha
InventorsYasuko Shibahara, Yasutaka Noguchi
Life of this patent
Estimating the term…
Abstract
Trace information showing a fact that an illegal output request has been issued from any one of data processing apparatuses is managed. Under an output environment such that an output apparatus is shared from a plurality of data processing apparatuses, when it is detected that a kind of data received by a CPU is specific data such that an output is legally limited, information to identify a transfer source side of the specific data or the received data is preserved and managed in a RAM or the like.
Claims13
A print apparatus which prints print data from plural computers connected through a network, comprising:
- receiving means for receiving the print data and discrimination information added to the print data, which indicates a computer of a transmission source of the print data, from the plural computers;
- first discriminating means for discriminating which computer transmitted the print data, on the basis of the discrimination information;
- second discriminating means for analyzing the print data received from the plural computers and discriminating whether the data is specific data whose output is limited;
- and
- storing means for storing the information regarding the computer discriminated by said first discriminating means when it is determined by said second discriminating means that the print data is the specific data.
A print apparatus which prints print data from plural computers connected through a network, comprising:
- receiving means for receiving the print data and discrimination information added to the print data, which indicates a computer of a transmission source of the print data, from the plural computers;
- discriminating means for analyzing the print data received from the plural computers and discriminating whether the print data is specific data whose output is limited;
- and
- notifying means for notifying the plural computers connected to the network that a fake action was performed when it is determined by said discriminating means that the print data is the specific data.
A control method for a print apparatus which prints print data from plural computers connected through a network, said method comprising:
- a receiving step of receiving the print data and discrimination information added to the print data, which indicates a computer of a transmission source of the print data, from the plural computers;
- a first discriminating step of discriminating which computer transmitted the print data, on the basis of the discrimination information;
- a second discriminating step of analyzing the print data received from the plural computers and discriminating whether the print data is specific data whose output is limited;
- and
- a storing step of storing the information regarding the computer discriminated in said first discriminating step when it is determined in said second discriminating step that the print data is the specific data.
A control method for a print apparatus which prints print data from plural computers connected through a network, comprising:
- a receiving step of receiving the print data and discrimination information added to the print data, which indicates a computer of a transmission source of the print data, from the plural computers;
- a discriminating step of analyzing the print data received from the plural computers and discriminating whether the print data is specific data whose output is limited;
- and
- a notifying step of notifying the plural computers connected to the network that a fake action was performed, when it is determined in said discriminating step that the print data is specific data.
A computer-readable storage medium in which is stored a program for controlling a computer having a print apparatus for printing print data from plural computers connected through a network, said program comprising codes for causing said computer to perform:
- a receiving step of receiving the print data and discrimination information added to the print data, which indicates a computer of a transmission source of the print data, from the plural computers connected to the network;
- a first discriminating step of discriminating which computer transmitted the print data, on the basis of the discrimination information;
- a second discriminating step of analyzing the print data received from the plural computers and discriminating whether the print data is specific data whose output is limited;
- and
- a storing step of storing the information regarding the computer discriminated in said first discriminating step when it is determined in said second discriminating step that the print data is the specific data.
A computer-readable storage medium in which is stored a program for controlling a computer having a print apparatus for printing print data from plural computers connected through a network, said program comprising codes for causing said computer to perform:
- a receiving step of receiving the print data and discrimination information added to the print data, which indicates a computer of the transmission source of the print data, from the plural computers;
- a discriminating step of analyzing the print data received from the plural computers and discriminating whether the print data is specific data whose output is limited;
- and
- a notifying step of notifying the plural computers connected to the network that a fake action was performed, when it is determined in said discriminating step that the print data is the specific data.
Dependencies are inferred from the claim text.