I know this is an older post, but a solution may be available now:
To recover a printer affected by this issue, unplug the power cable from the printer, plug it back in and press the power button within 5 seconds of plugging the power cord back in. Then follow one of the below steps:
- A permanent firmware solution is now available via Product Update*
- The permanent solution will also be available on HP.COM via FW download (Spring 2014)
- Or, as a workaround for those that don’t want to update FW, do not power the printer off and set the printer’s AutoOff setting to OFF
*NOTE: Your printer must be connected to Web Services in order to pull the update from HP’s Cloud. Instructions for enabling Web Services are provided below.
Enable Web Services:
Important : The HP product must connect to a wireless network with an active Internet connection to receive updates. However, the product does not need to be connected to a computer.
On the printer control panel, press the ePrint icon. The Web Services Settings menu opens.
- If Web Services is already enabled , the printer checks for updates, and then returns to the home screen if an update is not found. If an update is found, the update installs automatically. The printer might power off and on depending on the type of update. You do not need to continue with these steps.
- If you are prompted to accept the terms of use and service , continue with these steps to enable Web Services.
- Press OK to accept the terms of service.
- When prompted to accept future updates, press OK .
- If no product updates are available, press OK to close the Printer Updates screen.
- If product updates are available, press OK to start the updates.
CAUTION: Do not turn off the printer or attempt to use any of the printer functions until the update is complete. - After the update, wait while the printer restarts.
NOTE: The printer restarts even after an unsuccessful update.