Hp all in one flashes paper jam and there is no

we need to perform a reset, it will take the pritner to the factory settings and this may help you,
the process of reset goes like.
unplug the power cable from the pritner >
then press and hold down the # key and 6 key >
while pressing and holding these keys plug in the power cable back into the printer and wait for 20 secs and then release the buttons..
after this the printer will re-initialize and this might take few minutes.. so wait untill it finishes and follow the onscreeen instruction as well.(if any)..

and also.. plug your printer direclty to the wall jack for the power supply if it is connected to the surge protector..

It the printer will not shut down then remove the power plug from the outlet so that it will turn off. Once it was turn off by removing the plug, empty or delete the printer documents to be print. If already done, then plug in again the printer power cord and then power it up. Print a sample document to see if it is printing now correctly. Be aware also about the printer ink levels. Hope this could help, please don't forget to rate me..Thanks..:-)