HP Officejet Pro K550

Network authentication: The printer’s factory default
setting is ‘Open‘, which does not require security for
authorization or encryption. The other possible values
are ‘OpenThenShared’, ‘Shared’, and ‘WPA-PSK’
(Wi-Fi ® Protected Access Pre-Shared Key).
• WPA increases the level of over-the-air data
protection and access control on existing and future
Wi-Fi networks. It addresses all known weaknesses
of WEP, the original native security mechanism in
the 802.11 standard.
• WPA2 is the second generation of WPA security;
providing enterprise and consumer Wi-Fi users with
a high level of assurance that only authorized users
can access their wireless networks.
Data encryption:
• Wired Equivalent Privacy (WEP) provides security by
encrypting data sent over radio waves from one
wireless device to another wireless device.
Devices on a WEP-enabled network use WEP keys to
encode data. If your network uses WEP, you must
know the WEP key(s) it uses.
• WPA uses the Temporal Key Integrity Protocol (TKIP)
for encryption and employs 802.1X authentication
with one of the standard Extensible Authentication
Protocol (EAP) types available today.
• WPA2 provides a new, encryption scheme,
the Advanced Encryption Standard (AES). AES is
defined in counter cipher-block chaining mode
(CCM) and supports the Independent Basic Service
Set (IBSS) to enable security between client
workstations operating in ad hoc mode.
To set up the printer for wireless
communication
For Windows
1. Remove the protective cover from the printer’s
network connector.
2. Do one of the following:
• Temporarily connect the printer to the computer
with the cross cable (included with the printer).
• Temporarily connect the printer to an available
port on the network hub, switch, or router with a
network cable (sold separately).
3. Close any applications that are running on your
computer system.
4. Insert the Starter CD into the CD drive.
If the CD menu does not start automatically,
double-click the setup icon on the Starter CD.
5. On the CD menu, click Install and follow the
onscreen instructions.
6. On the Connection Type screen, select the option to
connect through network and click Next.
7. Follow the onscreen instructions to complete the
installation, and when prompted, disconnect the
cable.
For Mac OS
1. Open the AirPort Setup Assistant, and then follow
the onscreen instructions for joining an existing
wireless network (hpsetup).
2. Double-click the setup icon on the Starter CD,
and then follow the onscreen instructions.
3. When prompted, click Open Print Center to add
the printer.
To set up wireless communication
using SecureEasySetup (SES)
If your wireless router is SES capable, see the following
instructions to set up using SES.
1. Press the SES button on the wireless router.
2. Within 2 minutes, press and hold (Configuration
Page button) on the printer, press (Resume
button) once, and release (Configuration Page
button).
The Configuration Page light blinks.
3. Wait for about 2 minutes, and press
(Configuration Page button) to print the printer’s
configuration page and verify that the SES settings
match the router’s wireless settings.
Note: If the connection fails, you might need to reset
the printer’s network settings (see “Reset network
configuration settings” on page 25) and repeat the
steps. See also “Check the wireless
communication settings” on page 24.
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