User`s manual

3–7Operating the Printer
Switches and Indicators
Control panel switches allow you to change printer operating states and other
tasks. The status lamps illuminate to signal various operating conditions.
This section describes the function of every switch and indicator on the
operator control panel.
See Figure 3–2 for the locations of control panel switches and indicators.
Message Display
The message display is a 2–line by 16–character alphanumeric liquid crystal
display (LCD). During normal operation, it shows the print state (on–line or
off–line) and displays configuration parameter options. If a fault condition
occurs, it displays a fault message.
Status Lamps
Two status lamps illuminate continuously when the printer is on–line to the
host and are off when the printer is off–line.
The status lamps flash alternately if a fault condition exists in the printer.
ON LINE Switch
The ON LINE switch toggles the printer on–line and off–line.
When the printer is on–line, it is ready to receive data and control commands
from the host computer, and prints the data immediately.
To take the printer off–line, press the ON LINE switch when the printer is
on–line. The interface to the host computer becomes busy and input character
processing stops. (Printing may continue for a maximum of two seconds.)
The display then reads: “Off–Line/Emulation”.
To return the printer on–line, simply press the ON LINE switch again. The
display then reads: “On–Line”.
The printer must be off–line to change printer configuration or to run
self–tests. The printer will automatically go off–line if a fault occurs.