Brother HL-1660e Series User Manual page 163

USER'S GUIDE
2–20
Pressing the POWER Switch
The POWER switch is on the front right hand side of the printer. Pressing
the ON side " | " supplies power to the printer, which then performs a self
test and warm up. Pressing the OFF side "O" turns the power off.
Fig. 2-23 Pressing the POWER Switch
!
Caution
Always wait at least 2 seconds after turning off the power before turning
it back on.
Do not turn the power off while the printer is printing, as this may cause a
paper jam and adversely affect the printer.
The printer performs a self-diagnosis at start-up to check its hardware and
software. If the printer should find any problems, the display will show
the corresponding message. See
04 SELF TEST
The display shows several messages quickly at start-up. If the printer
detects no errors, it automatically goes on-line and the message changes
to show the current printer status and settings.
LJ READY 001P T1
LJ : The auto emulation selection is set and currently the HP
LaserJet emulation mode is selected.
READY : The printer is ready to print.
001 : The number of copies to print is set to 1.
P : Portrait print is selected.
T1 : Paper is fed from Tray1.
ON
OFF
"TROUBLESHOOTING" in Chapter 7.