Hp laserjet 3055 scanner error 4 - HP LaserJet 3055 All-In-One Printer

SOURCE: Hp 3055 laserjet scanner problem

When powered on printer 3055 it gives error on control panel that
"Scanner error 6 Trun off and then on "
after several restart printer gives the same error
what will be the problem

SOURCE: hp laserjet 3055 has code 52 scanner error

PRINTER ERROR The laser scanner speed is incorrect. X description: 1 = Scanner startup error 2 = Scanner rotation error 1. Press GO. The page containing the error will automatically be reprinted. 2. Turn the printer off and then on. 3. Reseat cables to the laser/ scanner and engine controller. 4. Replace the laser/scanner.