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Using the Control Panel
3-40 ❖ User Guide
The Indicator Lights
The Control Panel contains four indicator lights. Table 3.4
describes the function of each light.
Table 3.4 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 timeout period (15 seconds by default and
customizable) 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).