Printer, control method and control program for printer, and storage medium for storing control program for printer
AssigneeCanon Kabushiki Kaisha
InventorKazuya Sakamoto
Life of this patent
Estimating the term…
Abstract
A printer enters a busy state when a device ID request from a first interface is received. In the busy state, no data is received from a second interface. When data is not received within a predetermined period of time, the busy state is released. Accordingly, a device ID request from the second interface cannot be received within the period of time from reception of the device ID request from the first interface to reception of print data from the first interface. A host connected to the second interface can display the correct printer state.
Claims11
A printer comprising:
- first connecting means for connecting a first interface;
- second connecting means for connecting a second interface;
- and
- control means for causing, when a device ID request from the first interface is received, said printer to enter a busy state in which no data is received from the second interface and for releasing the busy state when no data is received within a predetermined period of time.
A control method for a printer comprising first connecting means for connecting a first interface and second connecting means for connecting a second interface, said control method comprising the steps of:
- causing, when a device ID request from the first interface is received, said printer to enter a busy state in which no data from the second interface is received;
- and
- releasing the busy state when no data is received within a predetermined period of time after said printer enters the busy state.
A control program for a printer comprising first connecting means for connecting a first interface and second connecting means for connecting a second interface, said control program comprising the steps of:
- setting, when a device ID request from the first interface is received, said printer to enter a busy state in which no data from the second interface is received;
- and
- releasing the busy state when no data is received within a predetermined period of time after said printer enters the busy state.
A storage medium for storing a control program for a printer comprising first connecting means for connecting a first interface and second connecting means for connecting a second interface, said control program comprising the steps of:
- setting, when a device ID request from the first interface is received, said printer to enter a busy state in which no data from the second interface is received;
- and
- releasing the busy state when no data is received within a predetermined period of time after said printer enters the busy state.
Dependencies are inferred from the claim text.