HP LaserJet 4345 Multifunction Printer series - Manual (Page 85)

Type of media Tray Two-sided
(duplexed) Media orientation
Paper, including
letterhead (weights
up to 120 g/m
2 )
(32 lb bond)
2, 3, 4, or 5 Yes First side facing up.
Prepunched letter
or A4-size paper
(weights up to 200 g/
m
2 )(53 lb bond)
Note: For better
duplexing
performance, set the
size and type for
tray 1
1 Either Holes toward the front; side to be printed on
facing up.
Note: When printing on paper that is both
prepunched and preprinted/letterhead, orient
the paper in the same way that you would
orient preprinted/letterhead paper.
Envelopes Tray 1 or
envelope
feeder only No (never
duplex) Side to be printed on facing up and the
postage end toward the MFP.
Note
Do not load envelopes face down.
1 When Alternative Letterhead mode is enabled in the printer driver and Letterhead or
Preprinted is selected as the media type, you must orient the media for two-sided (duplex)
printing. For more information, see
Printing on both sides of paper (optional duplexer) .
ENWW Orienting media 71