HP LaserJet 6L Pro Printer - Manual (Page 51)

EN Solving printer problems 49
All the printer’s lights are on. The printer has a hardware
error. Disconnect the printer from
the power source for 10
seconds, then reconnect it. If
the lights remain on,
disconnect the printer from its
power source again, this time
reconnecting after a 15-minute
wait. If all three lights come
back on again, contact your
HP authorized service
representative.
The printer is feeding multiple
sheets or jams frequently. Paper guides are not adjusted
properly. Remove the paper from the
paper input bin or the single-
sheet input slot. Tap the sides
of the paper stack together,
then reinsert the stack,
reinsert the single sheet into
the slot. Slide the paper
guides against the sides of the
stack in the paper input bin or
against the single sheet in the
single-sheet input slot to
center the paper. Make sure
the guides are not adjusted
too tightly.
The paper input bin is too full. Remove some of the sheets.
The paper input bin can hold
up to 100 sheets of 75g/m
2
(20-lb) bond weight paper
(less for heavier paper) or up
to 10 envelopes (no more than
7 envelopes for areas with
climates having high humidity).
More than one sheet was
added into the single-sheet
input slot. Add only one sheet at a time
into the single-sheet input slot.
If printing more than one sheet
of the same type of media, use
the paper input bin.
The paper was poorly cut by
the manufacturer and is
sticking together. “Break” the ream of paper by
curving it into an upside-down
u-shape; this may effectively
decrease multi-feeds. You can
also try turning the paper
around to feed the opposite
end first.
Symptom Possible Cause(s) Solution(s)