Patent ID: 6906811

Claim:
A printer adapted to be connected to a host device and to receive a data stream from said host device, said printer comprising: a receiver for receiving the data stream including a first command type and a second command type to control the printer; a first processing section responsive to commands of said first command type for executing a first process in accordance with any command of the first command type included in said data stream; and a second processing section responsive to commands of said second command type for executing a second process in accordance with one or more commands of the second command type included in said data stream, said second processing section executing said second process in preference to said first processing section performing said first process; an indication device indicating either an enabled or a disabled state; and a setting element for setting the state indicated by said indication device; wherein said second processing section is responsive to said indication device to perform said second process only if said indication device indicates said enabled state.