HP LaserJet 4100 Series PSHOWTO:
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Install the printer in your computer:
1. Start / Printers and Faxes / Add a printer /
2. Next Check for a "Local printer attached to this computer"
(doNOT check the "Automatically detect and install my Plug and Play printer")
3. / Next / Create a new port / Standard TCP/IP Port / Next/
Printer Name or IP Address: ask_me,
Port Name: IP_ask_me
Make use of the printer driver: HP Laserjet 4100 Series PS
Printer name: ctrlp2
Make use of double sided printing from HP Laserjet 4100 Series PS:1. Open Printers and Faxes.
2. Right-click the printer you want to set options for, and then click Properties.
3. On the Device Settings tab, scroll down until you see Installable Options and look for Duplex Unit (for 2-Sided Printing) and change the setting from not installed to installed.