摘要 |
<P>PROBLEM TO BE SOLVED: To simplify the power source control operation by a user, and to shorten the time from the start of print to the execution of print by controlling a printer power source cooperatively with the power source control of the printer controller in a system where the printer controller is connected to a printer. <P>SOLUTION: Only the I/F of a printer is operated prior to power ON. A printer controller transmits a power ON command to the printer according to a power ON operation to power ON the printer. A power OFF command is transmitted to the printer according to a power OFF operation, and the printer is reset in advance to certify the reception of the command. <P>COPYRIGHT: (C)2004,JPO |