Compuprint 4247-L03 Quick Start - Manual (Page 21)

4. Turn the printer on, press the power switch in the I position (ON).
Attention: If, for any reason, the Controller Board was not correctly installed in
the printer, the printer will not work and the following audio/visual symptoms
will occur:
v
The buzzer sounds continuously
v The Operator Panel display is partially filled with solid black boxes
v The Operator Panel LEDs are all lit.
If this is the case, power off the printer, re-seat the Controller Board, and power
the printer on again.
HC0I0015
Figure 13. Power switch in the I position (ON).
Setting up your printer 13