Caution:To avoid
damaging the printer, do not turn the printer off when the front
panel displays any of the following messages: "Busy
Cleaning Head," "Printing," or "Utilities," unless you turn
the printer on again within 5 minutes.
When you turn on the printer, the POWER and ERROR indicators on the
front panel light up.
The printer takes about 15 to 20 minutes to warm up and complete a
series of self-tests.
During the warm-up cycle, the POWER indicator remains on; the ERROR
light goes out.