HP P2015 Printer my the two orange lights are continuosly on. if i switch it off and on again, it then lights the other orange light which indicates no paper but when i open the paper tray and close it again on occassion it will print otherwise it does not want to print

Try changing the printer properties in Windows to accommodate for you default paper size and type.
Sometimes, lights indicate an unexpected paper size, which requires user intervention to select an alternative paper source.
Check your pages are all "A4" in the "Device Settings" tab and in the "Advanced" tab, press "Printing Defaults" and set the following properties:
Printer Auto-Select
A4
Plain

I have also heard that having 2 orange lights may indicate a hardware fault, if the printer is saying "Offline" in Windows, there's a strong chance that the formatter (The card that handles communication and holds the RAM) may have gone kaput.
Contact HP support if your printer is still under warranty and they should be able to send an engineer.
Otherwise, you'll have to purchase part: Q7805-60002 for the P2015dn or Q7804-60001 for P2015 and P2015d
(The "d" stands for Duplexer, the "t" stands for extra Tray, the "n" stands for Network).

Try putting a sheet of paper in the tray 1 bypass feeder