HP Photosmart C4780 - Manual (Page 58)

Solution 2: Reset the product
Solution: Turn off the product, and then unplug the power cord. Plug the power
cord back in, and then press the On button to turn on the product.
Cause: The product experienced an error.
If this did not solve the issue, try the next solution.
Solution 3: Press the On button more slowly
Solution: The product might not respond if you press the On button too quickly.
Press the On button once. It might take a few minutes for the product to turn on. If
you press the On button again during this time, you might turn the product off.
CAUTION: If the product still does not turn on, it might have a mechanical failure.
Unplug the product from the power outlet.
Contact HP support for service.
Go to:
www.hp.com/support . If prompted, choose your country/region, and then
click Contact HP for information on calling for technical support.
Cause: You pressed the On button too quickly.
If this did not solve the issue, try the next solution.
Solution 4: Contact HP to replace the power supply
Solution: Contact HP support to request a power supply for the product.
Go to:
www.hp.com/support .
If prompted, choose your country/region, and then click Contact HP for information
on calling for technical support.
Cause: The power supply was not intended for use with this product.
If this did not solve the issue, try the next solution.
Solution 5: Contact HP support for service
Solution: If you have completed all of the steps provided in the previous solutions
and are still having a problem, contact HP support for service.
Go to:
www.hp.com/support .
If prompted, choose your country/region, and then click Contact HP for technical
support.
Cause: You might need assistance to enable the product or software to function
properly.
Chapter 12
56 Solve a problem
Solve a problem