Printronix L5520 - Manual (Page 30)

Chapter 2 Powering On The Printer
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2. Turn on the printer by setting the power switch to | (On). When
you power on the printer, the following occurs:
a. The printer reads the emulation boot file and briefly
displays the message:
TESTING HARDWARE
PLEASE WAIT...
b. DIAGNOSTICS PASSED
c. STAND BY light flashes
d. The ONLINE indicator lights continuously and STAND BY
goes out.
NOTE: The printer can be set to power on in the OFFLINE state
instead of the ONLINE state. To print, ONLINE must be lit;
if it is not, press ONLINE.
If other messages and prompts appear on the control panel,
answer the prompts and follow the directions as explained on
page 182.