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Using the Control Panel
Chapter 3: Printing ❖ 3-37
The Indicator Lights
The Control Panel contains four indicator lights. Table 3.3
describes the function of each light.
Table 3.3 Indicator lights and their functions
Light Description
Online (Green)
Lights when the printer is online.
Flashes when the printer is transitioning
from online to offline or to indicate that a
print job is being processed.
Form Feed (Green)
Lights when the printer experiences a form
feed timeout—that is, when a PCL job has
formatted a partial page, the printer is
waiting for more data in order to continue
processing the job, and a 15 second
timeout period has expired with no new
data arriving in the input buffer. This
timeout applies to all ports.
When lit, you can print a partial page by
entering the Job menu, scrolling to the
Form Feed item and pressing Enter. When
not in the menu system, a partial page can
be printed by pressing Enter. PostScript
does not print partial pages and
consequently the Form Feed light is not
turned on.
Fault (Amber)
Lights whenever operator intervention is
required in order to allow printing to
continue.
Data (Green)
Flashes to indicate that a print job is being
processed by either PostScript, PCL or PJL,
or is being spooled to the optional hard
disk (e.g., a proof or secure job).