Printer and control method therefor

A printer adapted to receive print information from an information processing apparatus connected to said printer via an interface and to perform print processing based on the print information and comprising:

• detecting means for detecting whether or not an optional device is attached to said printer;
• selecting means for selecting, in accordance with a detection result of said detecting means, first identification information related to the printer or second identification information representing data related to said optional device;
• and
• identification information output means for transferring, the identification information as selected by said selecting means to said information processing apparatus in response to a received request from the information processing apparatus,
• wherein said detecting means is adapted to repeat detection as to whether or not an optional device is attached to said printer at predetermined intervals after power on,
• wherein said selecting means selects the first identification information related to the printer if said detecting means does not detect the optional device or selects the second identification information representing data related to said optional device if said detecting means detected the optional device, and
• wherein the identification information selected by said selecting means and transferred to said information processing apparatus is used by the information processing apparatus to select a device driver.

A method of controlling a printer including receive print information from an information processing apparatus connected to said printer via an interface and to perform print processing based on the print information and comprising the steps of:

• detecting whether or not an optional device is attached to said printer;
• selecting, in accordance with a detection result in said detecting step, first identification information related to the printer or second identification information representing data related to said optional device;
• and
• transferring, the identification information as selected in said selecting step to said information processing apparatus in response to a received request from the information processing apparatus,
• wherein said detecting step is repeated at predetermined intervals after power on,
• wherein said selection step comprises selecting first identification information related to the printer if the optional device is not detected or selecting second identification information representing data related to said optional device if the optional device is detected, and
• wherein the identification information selected in said selection step and transferred to said information processing apparatus being used by the information processing apparatus to select a device driver.

A printer adapted to receive print information from an information processing apparatus connected to said printer via an interface and to perform print processing based on the print information and comprising:

• detecting means for detecting whether or not an optional device is attached to said printer;
• selecting means for selecting, in accordance detection result of said detecting means, first identification information related to the printer or second identification information representing data related to said optional device;
• and
• identification information output means for transferring, the identification information as selected by said selecting means to said information processing apparatus in response to a received request from the information processing apparatus,
• wherein said detecting means is adapted to repeat detection as to whether or not an optional device is attached to said printer at predetermined intervals after power on,
• wherein said selecting means selects first identification information related to the printer if said detecting means does not detect the optional device or selects second identification information representing data related to said optional device if said detecting means detected the optional device,
• wherein further said selecting means controls a selecting operation of the identification information in response to an input to operate said printer, and
• wherein the identification information selected by said selecting means and transferred to said information processing apparatus is used by the information processing apparatus to select a device driver.

A method of controlling a printer including receive print information from an information processing apparatus connected to said printer via an interface and to perform print processing based on the print information and comprising the steps of:

• detecting whether or not an optional device is attached to said printer;
• selecting, in accordance with a detection result in said detecting step, first identification information related to the printer or second identification information representing data related to said optional device;
• and
• transferring, the identification information as selected in said selecting step to said information processing apparatus in response to a received request from the information processing apparatus,
• wherein said detecting step is repeated at predetermined intervals after power on,
• wherein said selection step comprises selecting first identification information related to the printer if the optional device is not detected or selecting second identification information representing data related to said optional device if the optional device is detected or in response to operator input via a control panel,
• wherein further said selection step comprises controlling a selecting operation of the identification information in response to an input to operate said printer, and
• wherein the identification information selected in said selection step and transferred to said information processing apparatus being used by the information processing apparatus to select a device driver.