Control-panel display problems
CAUTION: Static electricity can cause unexpected black lines, dots, or characters to appear on the device
control-panel display. Do not touch the device control-panel display if there is a chance that you have
collected a static electric charge (for example, by walking on carpet in a low-humidity environment).
Unexpected lines, dots, or characters might appear on the device control-panel display, or the display might
become blank if the device is exposed to an electric or magnetic field. To resolve this problem, perform the
following procedure:
1. Turn the device off.
2. Remove the device from the electric or magnetic field.
3. Turn the device on again.
ENWW Control-panel display problems 97