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Appendix D Guidelines for ensuring wireless network security This section contains the following topics: • To add hardware addresses to a WAP • Other guidelines To add hardware addresses to a WAP MAC filtering is a security feature in which a WAP is configured with a list of MAC addresses (also called "hardware addresses") of devices that are allowed to gain access to the network through the WAP. If the WAP does not have the hardware address of a device attempting to access the network, the WAP denies the device access to the network. If the WAP filters MAC addresses, then the device's MAC address must be added to the WAP's list of accepted MAC addresses. 1. Print the network configuration page. For information on the network configuration page, see Understand the network configuration page (some models only). 2. Open the WAP's configuration utility, and add the device's hardware address to the list of accepted MAC addresses. Other guidelines To keep the wireless network secure, follow these guidelines: • Use a password with at least 20 random characters. You can use up to 63 characters in a WPA password. • Avoid any common words or phrases, easy sequences of characters (such as all 1s), and personally-identifiable information for passwords. Always use random strings composed of uppercase and lowercase letters, numbers, and if allowed, special characters such as punctuation. • Change the password periodically. • Change the default password provided by the manufacturer for administrator access to the access point or wireless router. Some routers let you change the administrator name as well. • Turn off administrative access over wireless if possible. If you do this, you need to connect to the router with a wired Ethernet connection when you want to make configuration changes. • Turn off remote administrative access over the Internet on your router, if possible. You can use Remote Desktop to make an encrypted connection to a computer running behind your router and make configuration changes from the local computer you are accessing over the Internet. • To avoid accidentally connecting to another party's wireless network, turn off the setting to automatically connect to non-preferred networks. This is disabled by default in Windows XP. Guidelines for reducing interference on a wireless network The following tips will help reduce the chances for interference in a wireless network: • Keep the wireless devices away from large metal objects, such as filing cabinets, and other electromagnetic devices, such as microwaves and cordless telephones, as these objects can disrupt radio signals. • Keep the wireless devices away from large masonry structures and other building structures as these objects can absorb radio waves and lower signal strength. • For an infrastructure network, position the WAP in a central location in line of sight with the wireless devices on the network. • Keep all wireless devices on the network within range of one another. Uninstall and reinstall the software If your installation is incomplete, or if you connected the USB cable to the computer before prompted by the software installation screen, you might need to uninstall and then reinstall the software. Do 204 Network setup (some models only)
not simply delete the device application files from your computer. Make sure to remove them properly using the uninstall utility provided when you installed the software that came with the device. There are three methods to uninstall the software on a Windows computer, and one method to uninstall on a Macintosh computer. To uninstall from a Windows computer, method 1 1. Disconnect the device from your computer. Do not connect it to your computer until after you have reinstalled the software. 2. On the Windows taskbar, click Start, select Programs or All Programs, select the product name, and then click Uninstall. 3. Follow the onscreen instructions. 4. If you are asked whether you would like to remove shared files, click No. Other programs that use these files might not work properly if the files are deleted. 5. Restart your computer. 6. To reinstall the software, insert the HP Software CD into your computer's CD drive, follow the onscreen instructions. 7. Connect the device when the software prompts you to connect it to the computer. 8. Press the Power button to turn the device on. After connecting and turning on the device, you might have to wait several minutes for all of the Plug and Play events to complete. 9. Follow the onscreen instructions. When the software installation is complete, the HP Digital Imaging Monitor icon appears in the Windows system tray. To uninstall from a Windows computer, method 2 NOTE: Use this method if Uninstall is not available in the Windows Start menu. 1. On the Windows taskbar, click Start, select Settings, select Control Panel, and then click Add/ Remove Programs. - Or - Click Start, click Control Panel, and then double-click Programs and Features. 2. Select the product name, and then click Change/Remove or Uninstall/Change. Follow the onscreen instructions. 3. Disconnect the device from your computer. 4. Restart your computer. NOTE: It is important that you disconnect the device before restarting your computer. Do not connect the device to your computer until after you have reinstalled the software. 5. Insert the HP Software CD into your computer's CD drive and then start the Setup program. 6. Follow the onscreen instructions. To uninstall from a Windows computer, method 3 NOTE: Use this method if Uninstall is not available in the Windows Start menu. 1. Insert the HP Software CD into your computer's CD drive, and then start the Setup program. 2. Disconnect the device from your computer. 3. Select Uninstall and follow the onscreen directions. Uninstall and reinstall the software 205
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User Guide OFFICEJET 4500 A909 G510
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Copyright information © 2009 Copyr
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Print photos.......................
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4 Poor print quality and unexpected
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Regulatory information.............
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Use the HP Solution Center (Windows
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Chapter 1 Eco-Tips HP is committed
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Chapter 1 (continued) 4 1-LINE (fax
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Chapter 1 To change settings for a
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Chapter 1 (continued) HP Printing P
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Chapter 1 ◦ Media that is too lig
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Chapter 1 20 Get started To load me
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Chapter 1 Clean the exterior WARNIN
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Chapter 1 4. Lift the automatic doc
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Chapter 2 Print documents (Mac OS X
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Chapter 2 6. In the Basic Options a
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Chapter 2 5. Click Photo Printing -
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Chapter 2 7. Select the paper type:
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Chapter 2 6. Choose Paper Type/Qual
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Chapter 3 3. Press right arrow to s
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Chapter 4 38 Copy • Lighter/Darke
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Chapter 5 TIP: You can also send a
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Chapter 5 Send a fax from memory Yo
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Chapter 5 phone lines. On poor phon
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Chapter 5 NOTE: If Backup fax is en
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Chapter 5 NOTE: If an incorrect pap
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Chapter 5 Receive faxes to your com
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Chapter 5 • Set the fax error cor
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Chapter 5 Set the dial type you are
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Chapter 5 Use reports NOTE: If you
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Chapter 5 Clear the fax log • Num
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6 Work with ink cartridges To ensur
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Chapter 6 Handle the ink cartridges
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Chapter 6 If you are replacing the
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Chapter 6 10. Load the ink cartridg
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Chapter 6 To align the ink cartridg
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7 Solve a problem HP support The in
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Chapter 7 • Messages that appear
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Chapter 7 After the phone support p
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Chapter 7 Check the device software
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Chapter 7 electromagnetic fields. A
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Chapter 7 Step 1: Check the print q
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Chapter 7 Print Quality Diagnostic
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Chapter 7 84 Solve a problem To pre
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Chapter 7 86 Solve a problem The li
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Chapter 7 88 Solve a problem Exampl
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Chapter 7 Solution 9: Replace the p
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Chapter 7 To clean the area around
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Chapter 7 • When using thin speci
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Chapter 7 • Black dots or streaks
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Chapter 7 Part of the document did
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Chapter 7 Take steps to improve the
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Chapter 7 • Make sure you use the
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Chapter 7 port labeled 1-LINE on th
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Chapter 7 • Other equipment, whic
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Chapter 7 • Make sure the device
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Chapter 7 110 Solve a problem • I
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Chapter 7 TIP: If the device came w
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Chapter 7 Solve wireless problems (
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Chapter 7 Mac OS X ▲ Click the Ai
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Chapter 7 3. Do one of the followin
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Chapter 7 Another common problem is
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Chapter 7 Check the device IP addre
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Chapter 7 • If the computer canno
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Chapter 7 Understand the network co
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Chapter 7 2. Gently pull the paper
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A Technical information This sectio
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Appendix A Ink cartridge warranty i
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Appendix A Processor: 192 MHz ARM9
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Appendix A (continued) Media size M
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Appendix A (continued) Tray Type We
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Appendix A (continued) Paper type D
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Appendix A Regulatory information T
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Appendix A Notice to users in Japan
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Appendix A Notice to users of the C
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Appendix A Exposure to radio freque
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Appendix A Declaration of conformit
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Appendix A Environmental product st
Page 158 and 159: Appendix A Power consumption Hewlet
Page 160 and 161: Appendix A HP Officejet 4500 Deskto
Page 162 and 163: Appendix A ZLIB zlib.h -- interface
Page 164 and 165: Appendix A Expat Copyright (c) 1998
Page 166 and 167: Appendix A THIS SOFTWARE IS PROVIDE
Page 170 and 171: Appendix A HP Officejet 4500 Wirele
Page 172 and 173: Appendix A OpenSSL Copyright (C) 19
Page 178 and 179: Appendix B • The HP software on y
Page 180 and 181: Appendix C Countries/regions with a
Page 182 and 183: Appendix C (continued) Other equipm
Page 184 and 185: Appendix C 3. Connect an additional
Page 186 and 187: Appendix C 1 Telephone wall jack 2
Page 188 and 189: Appendix C Set up the device with a
Page 190 and 191: Appendix C 4. Connect the DSL modem
Page 192 and 193: Appendix C Shared voice/fax with co
Page 194 and 195: Appendix C (continued) 3 Answering
Page 196 and 197: Appendix C 1. Remove the white plug
Page 198 and 199: Appendix C To set up the device wit
Page 200 and 201: Appendix C 4. Using the phone cord
Page 202 and 203: D Network setup (some models only)
Page 204 and 205: Appendix D Set up the device for wi
Page 206 and 207: Appendix D NOTE: If you cannot find
Page 210 and 211: Appendix D 4. Restart your computer
Page 212 and 213: Appendix E NOTE: On a Macintosh com
Page 214 and 215: F Errors (Windows) This list repres
Page 216 and 217: Appendix F 3. Wait until the print
Page 218 and 219: Appendix F Before you try to clear
Page 220 and 221: Index Symbols/Numerics (ADF) automa
Page 222 and 223: test setup 197 troubleshoot 100 voi
Page 224 and 225: edial options, setting 54 reduce fa
Page 226: two-sided 34 uninstall software 205
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