does know how to connect a printer to a phone my printer is a canon pixma mg3122 and i don't know how to use it can somebody plz help me

Confirm that the power of the printer is on and the Bluetooth (Bluetooth) indicator is lit in blue.  If not, press and hold the Power (Power) button to turn the printer on, and then press and hold the Bluetooth (Bluetooth) button.

Use your mobile device to display the list of nearby Bluetooth accessories that your device can pair with.

For Apple devices (iPad, iPhone, iPod touch, etc.)

From the home screen of your Apple device, tap [Settings], and then tap [Bluetooth].

For Android™ devices

From the home screen of your Android™ device, tap Apps button, tap [Settings], and then tap [Bluetooth].

Slide the toggle button to the [ON] position.

Select your printer’s model name and, if required, enter the passkey (PIN code).

Hope this helped you!

Explanation: