The display panel consists of a high contrast screen and a round, rotating knob.
The screen displays information about the current printing process, the printer’s
menu, and other information concerning the printer. The knob allows you to
navigate through the printer’s menu, and adjust and control its basic settings.
Therefore, if there is nothing displayed on the screen or the knob does not work
properly (it rotates with resistance or becomes too loose), the display panel needs
to be replaced. This manual shows the correct replacement procedure.
The following manual shows the M200 repair work. For the M300, these procedures are
the same.
page 3 / 13
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