Printronix L5020 - Manual (Page 39)

Function Keys
39
To start downloading files to the printer, hold down the ONLINE +
PAGE EJECT keys while the power is cycling. See page 93 for
more information.
When the JOB IN PROCESS status indicator is not lit or flashing,
PAGE EJECT has no effect.
Pressing the SHIFT + PAGE EJECT keys together moves the
paper one page length without printing or cutting the paper. It can
be used to feed the paper into (customer-supplied) postprocessing
equipment.
ENTER Key
When you enter parameters in the configuration menu, press
ENTER to select the value shown in the LCD. The printer confirms
your selection by placing an asterisk (*) next to the value in the
display. However, if the ENTER key is locked, “ENTER SWITCH
LOCKED” appears and the value is not accepted.