All lights flash like crazy on powering up; diagnostic says "turn power off & on"
I have an HP aio 7710, actually, and today i unplugged it for awhile. when i plugged it back in (it plugs into a power strip that has a surge protector, btw), the display flashed up the normal "self-test" msg for a couple seconds, then all the LEDs went nutso, all flashing very rapidly, and the display said "turn power off, and on again." well, i tried that, but it wouldn't actually turn off--it would only repeat that same cycle again & again. i tried unplugging & replugging several times; same thing. is there any sort of "reset" button or procedure for this, or am i screwed? Thanks!
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If you didn't accidentally unplug the four pin connector near the CPU, you need to replace the power supply. This is actually a fairly common occurrence with the cheap ATX power supplies being tossed into systems these days.
I just went through a heap of troubleshooting with power supply issues before swapping psu's and finding this was the solution to my problem. Had a closer look at my psu that was faulty, the green light was flashing on the psu, unplugged all components and thought that I now had a non-flashing green light on my psu, on closer inspection the light was actually flashing very fast so appeared to be an almost solid light...the psu was stuffed so replaced it and no more issues. If your power supply has a green light check to see if it is flashing when plugged into voltage with nothing connected to it. If it is a solid light then it is probably ok.
In addition to providing information about current tasks, the lights on the front panel can also indicate error conditions, as described in the table below: If the On light, Check Print Cartridge light, Check Paper light, and Start Copy, Black and Start Copy, Color lights are all flashing, do the following: 1 Verify that the front-panel overlay is attached to the HPPSC. 2 Turn your HPPSC off and on by disconnecting the power cord and reconnecting.
All ights blinking: An error caused the HPPSC to stop functioning. 1 Turn the HPPSC off and then on. 2 Restart your computer. 3 If the problem is not corrected, unplug the HPPSC and plug it in again. If the problem persists, contact HP.
If you find the lights flashing, we could try resetting the printer.I have explained the reset procedures below
POWER DRAIN:-Turn off the printer, Unplug the power cable from printer and from the wall outlet.Press and hold ON buton for 30-60 seconds.
PARTIAL RESET:-Unplug the printer power cable while its ON, press and hold # and 3 button and connect the Power cord while holding.Wait untill the ON light flashes, then release the buttons.
----(for below reset cartridges must be removed out)---------
SEMI_FULL RESET:-Remove the ink cartridges, Unplug the printer power cable while its ON, press and hold # and 6 button and connect the Power cord while holding.Wait untill the ON light flashes,or wait for 20 seconds,hen release the button.If the printer goes off dont worry release the button and Push the ON button.
FULL NVM RESET:-Take the Ink Cartridges out, Unplug the printer power cable while its ON, press and hold OK and CANCEL button and connect the Power cord while holding the buttons.keep Holding the buttons until the printer goes off ,release the button and Push the ON button.
There are 2 different types of flashing patterns with those two lights on the printer.
Resume light and power light BLINKING ALTERNATELY
Problem: Paper is jammed in the printer.
Resume blinking SIMULTANEOUSLY with power light
The print cartridge carriage is stuck.
1. Open the top of the printer.
2. Remove anything that is blocking the carriage path.
3. Turn the printer off.
4. Turn the printer on.
There is something wrong with the printer. (I didn't write it, I am
pulling this from actual HP tech documents, so don't blame me on this
Turn the printer off.
Turn the printer on.
If the printer will not turn off, unplug the power cable from the electrical outlet or wall outlet.
Unplug the power cord from the back of the printer.
Wait about 30 seconds.
Plug the power cord back into the wall outlet.
Plug the power cord to the back of the printer.