HP Photsmart C7280 - Flashing lights and blue screen error messages when printer turned off.

[Watto]

HP Photosmart C7280 All in One.

This 3 year old printer seemed to install OK when I connected it via a wireless modem/router.

Both my Tower and Lap Top  have  printed ok for months. They both use Windows 7 64-bit.

Just recently when the printer was left turned off for a few days all its lights started to flash.

If I disconnect  and the reconnect the power and modem/router cables, the printer will work ok again until it is turned off.

The lights will then start flashing again.  I also get 2 blue screen error messages when the power is off and the lights are flashing..

The blue screen error code B8SIFE84 always appears and once I have seen the blue screen error code B3772734 appear as well.

I have removed and reinstalled the device using the correct HP printer software and downloaded and installed all the relevant  printer updates that I can find. Still the problem persists. 

Any help, ideas or thoughts about of what to do to solve this problem would be appreciated.

Watto

[Watto · Accepted solution]

Have sussed it out.
Power unit is "cactus blacktus cactorum".
It doesn't know when it is turned off.
Looks like it's a new printer for "watto" so buy HP shares and buy a 5 year warranty with the new printer.

[the_darkknight6]

Just wanted to clarify, did you mean the power cord, or internal (as I think you meant)

[Watto]

Yes "the _darknight6".

The internal power supply unit was history.

My best understanding is - It appears that it did not know it was turned off and went looking for the modem/router anyway. When it could not connect properly it went into some sort of light flashing error mode.