r_chatham

asked Sep 23, 2015 at 1:15pm
Hp HP LaserJet 1200

printer squeals and does not print

Printer will emit shrill noise and not print. Some fiddling with stuff has helped, but problem is recurring more frequently now. Can figure out exactly what is squealing.

Best guess would be the laser scanner. The shaft that is connected to the spinning mirrors gets dry and causes the squeal which sounds like a small jet engine winding up. The solution is to remove the scanner assy. It's a black box on top of the printer, you'll have to take the cover off. Then open it up and lift the mirrors off. There's a small plastic latch at the bottom attached to the circuity board that keeps it from lifting up. It's easier if you remove the circuit board assy.Then you put a drop of synthetic lubricant on the shaft and put it back together. It's important to put just a tiny bit on the shaft or it will fling it out when it spins up.

by moe on Sep 23, 2015 at 2:31pm Add comment