How to Connect Canon MF4770N Printer to Computer?

does not come with a wi fi network card from reading its specifications.

Suggest plugging printer into Wi Fi router or another networked router that may be connected to network that has wi fi access device. Via the ethernet cable interface.
Then add driver to wireless computer and connect to printer on network.
if you are really keen you could use this on the usb port of your printer to share printer over wi fi or a similar usb wi fi print server device
https://www.flexihub.com/wireless-print-server/
https://www.mwave.com.au/product/tplink-tlwps510u-150mbps-pocketsized-wireless-print-server-aa81303?gclid=EAIaIQobChMIwLjqsrzX5AIVmwsrCh3JNwabEAQYAiABEgKw7vD_BwE

Hold menu and # key while restarting. Service menu shows and choose factory reset.

Look at the manual.. here is the link
imageCLASS MF4770n

Voy a describir el procedimiento tal y como lo hice y logre revivir mi impresora.

1. Utilic? un equipo en el que jam?s fue instalada la impresora as? no instalar?a el driver autom?ticamente. (No s? si funcionar?a desinstalando el driver de la propia PC)

2. Conectar la impresora al equipo y esperar a que muestre el mensaje USB AVAILABLE. (IMPORTANTE. no instalen el driver de la impresora. Windows la reconocer? mas dar? error al no encontrar un driver compatible)

3. Descargar la utilidad de actualizaci?n de canon Win_MF4800_4700_FirmUpdateTool_V1504_usEN.exe

4. Ejecutar la actualizaci?n de Canon. Esta actualizaci?n deber? detectar el firmware da?ado y proceder? a actualizarlo. En mi caso fue el N?mero 4.

NOTA: es importante disponer de una fuente de respaldo (UPS) ante probabilidad de fallo en el suministro de electricidad ya que ante un fallo como este quedar?a la impresora inservible.

Hello, What is your question?

check the fuser asamble

IF the LED screen shows "TONER IS NEARLY OUT", the "ERROR" light will constantly blink and the "ENERGY SAVER" Feature is disabled YET printer copy-fax-scan operation working properly, the solution will be to replace the toner cartridge. This will solve these issues.

I DON'T KNOW. CONSIDER SHUTTING IT OFF, UNHOOKING ALL CABLES FOR A MINUTE THEN RECONNECT AND TURN ON.

the canon MP170 is not a wifi printer, you need to connect it to a computer via usb, if you have have a second computer on your network you may "share" the printer across the network.this will allow you to print wirelessly to the printer via the connected PC.