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Printing on both sides of paper (optional duplexer)
The printer can automatically print on both sides of paper when an automatic duplexer is
installed. This is called duplexing. The duplexer supports the following paper sizes: letter,
legal, executive, A4, A5, and JIS B5.
NOTE
The automatic duplexer is included with the HP LaserJet 4250dtn, 4250dtnsl, 4350dtn, and
4350dtnsl printers.
For models that do not include an automatic duplexer, you can print on both sides manually.
See
To duplex manually. You can also order the duplexer as an accessory. See Ordering
parts, accessories, and supplies.
The duplex slot cover that is located at the rear of the printer must be removed when the
duplexer is installed. See the documentation that is included with the duplexer for installation
instructions. When duplexing very complex pages, additional memory might be required.
See
Printer memory.
When the printer prints by using the duplexer, the page partially protrudes into the top output
bin, and then reverses to print on the second side.
1
2
1 Duplexer installed
2 Duplexer removed
Guidelines for printing on both sides of paper
Orientation of paper for duplexing
Layout options for printing on both sides of paper
To duplex with the optional duplex-printing accessory
To duplex manually
Guidelines for printing on both sides of paper
CAUTION
Do not print on both sides of labels, transparencies, envelopes, vellum, custom sizes, or
paper heavier than 28 lb (105 g/m
2
) because jams or damage to the printer might occur.
ENWW Printing on both sides of paper (optional duplexer) 71