HP LaserJet 4300 Printer series - Manual (Page 66)

64 2 Printing tasks ENWW
Printing both sides of paper (optional duplexer)
The printer can automatically print on both sides of paper with an optional duplexer. This is
called duplexing. The optional duplexer supports the following paper sizes: letter, legal,
executive, A4, A5, and JIS B5.
The duplex slot cover that is located at the rear of the printer must be removed when the optional
duplexer is installed. See the documentation included with the optional duplexer for installation
instructions. When duplexing very complex pages, additional memory might be required. (See
“Printer memory and expansion” on page 169 .)
When the printer prints using the duplexer, the page partially protrudes into the top output bin,
and then reverses to print on the second side.
Optional duplexer installed Optional duplexer removed