HP Envy 7640 Not Printing
- Turn on the printer if it is powered off previously.
- Wait until the printer turns on and becomes idle.
- Disconnect the power cable from the HP Envy 7640 Setup printer.
- Wait for a few minutes and link the cable to the respective ports of the printer and power supply.
- Now the printer powers on automatically.
- If the HP Envy 7640 printer does not power up, switch it on by force pressing its power button.
- Ensure the ink cartridges are compatible with the model of your printer.