hp Laserjet 2840 will not turn on

Could someone please help me.

When I try to turn on my printer, it makes an electronic "clicking" type of noise.

I lifted the top to look at the scanner bar(?), there is a tiny flicker of light flashing at the end of it..that is what is making the noise.

The front display window remains black, the printer makes no other noises,nothing.

I would appreciate any help you may provide,

Thanks,
John Nizman
Last Chance Auto Restore.com