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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 99