(1) TURN OFF THE MACHINE.
Clean all 3 parts of the Hopper, using the included nylon brush.
(2) a. Hopper sensor.
b. Banknote processing wheel
c. Banknote entrance
(3) Clean the Stacker Sensors, using the included nylon brush.
(4) Clean the internal sensors via the opening in the back of the machine.
Figure 2-1 Direction of Back-Cover Opening
(a) Using the handle, open the external back covers by pulling them towards you.
(b) Pull the handle of the internal back in a slightly downward motion to open it.
(c) Clean the lower CIS with a non-lint cleaning cloth, such as microfiber or eyeglass cloths.
(d) Clean the lower UV sensor with the included nylon brush.
Figure 2-2 Lower Sensors
Figure 2-3 Upper CIS Sensor