HP Envy 7640 Reset
- Power up the HP Envy 7640 printer if it is turned off previously.
- Wait until the printer becomes idle.
- Disconnect the power cable from the HP Envy printer and power supply.
- Wait for a few minutes.
- Link the cable to the respective port of the printer and electrical outlet.
- Do not make the connection using a surge protector as it may produce power fluctuations.
- Now the printer turns on automatically.
- If the HP Envy 7640 Setup printer does not power up, switch it on by force pressing its power button.