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2-16 Theory of Operation
NovaJet 500/630/700 Series Service Manual
The paper sensor circuitry senses for the presence of loaded media. It
does this automatically during the start-up and load sequences. It also
constantly monitors the media during printing to determine if the
media has run out.
If no paper is sensed, the paper sensor sends this information to the
MPWA, which immediately begins an ‘out of paper’ subroutine. This
subroutine stops the printer from printing until more media is loaded.
The sensor also checks for the size of the media loaded so it can deter-
mine the proper printing parameters.
Control Panel
The Control Panel is located on the right side of the printer and consists
of 8 variable-action control buttons and an LCD graphics display. The
control buttons are assigned to different functions and are dependant
upon the selections that were previously selected. There are four buttons
on the left of the display and four buttons on the right, with the display
showing up to eight possible selections.
Load Media
Cut
Pause
Reset
Feed Media Menu
Setup Menu
Utility Menu
*
Figure 2-12. Main Menu.
Figure 2-12 shows the control panel after the printer has been turned on
and completed the start up process. As seen in the figure, the control
buttons are assigned to the corresponding command that is displayed
closest to the physical location of the button.