Press the Power button .
OSD Lock Function: To lock the OSD, press and hold the MENU button while the monitor is off and then press power button to turn the monitor on. To un-lock the OSD - press and hold the MENU button while the monitor is off and then press power button to turn the monitor on.
To save the computers power and stop it from overheating.
Press the power button and the A button at the same time.
To un-lock the OSD - press and hold the Left button while the monitor is off and then press power button to turn the monitor on.
Press power/ scan button without realising press memory button. It will turn off first release the memory button then the power/scan button.
Try the following to reset your canon i550. Turn off printer. Hold down resume button, press power button. Keep holding down power button, release resume button. Press resume button twice, then release both buttons. Green lights should flash. When green lights are stead, press the resume button four times. Press the power button once to turn the printer off. (If it doesn't turn off, press the power button again.) Your printer should now, hopefully, start up normally.
on newer models you have to hold down the power button to turn it off, and then press it again to turn it on.Older models you only need to press it to turn it off, and then press it again to turn it on.
Just press the power button to turn off console and repress it to turn back on.
You press. Source. to start up your CD player. Then press. Off. to turn it off
go to start then go to turn off computer then press turn off then that is it
Press the "off" button.