HP LaserJet Pro CP1525 HP LaserJet Pro CP1520 - Software Technical Reference - Page 189

III. LATE-BREAKING INFORMATION, KNOWN ISSUES AND WORKAROUNDS, General, Upgrading Windows

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III. LATE-BREAKING INFORMATION KNOWN ISSUES AND WORKAROUNDS General ● ● ● ● Firewall software can interfere with the HP software installer. Disable the firewall before starting a network installation or the product might not be detected. Certain Hi-Speed USB 2.0 cards ship with unsigned host controller drivers. If you have purchased a Hi-Speed USB 2.0 add-in card and have an unsigned driver, you might experience driver installation problems or communication problems between the product and HP software. It is recommended that you always use a Microsoft WHQL Certified host controller driver with your USB hardware. Functionality is limited on systems that only meet minimum system requirements. Many images and videos require a system that meets the recommended system requirements for acceptable performance and reliability. If the product is not detected during software installation, check the following: ◦ Verify that your cable is Hi-Speed USB 2.0 high-speed compliant. ◦ Ensure that your cable is connected correctly. Remove the USB cable, look at the end of the cable, and then match it to the pattern on the USB port. Make sure that it is not upside down. Insert one end of the USB cable completely into the USB port on the HP product, and insert the other end into the back of the computer. ◦ Verify that the product is turned on. The product will not be discovered by the software if the power is off. ◦ Ensure that your USB cable is no more than 5 m (16.4 ft) in length. ◦ Verify that the USB port is enabled. Some computers ship with disabled USB ports. Upgrading Windows HP recommends that you uninstall HP products before upgrading to a newer supported version of Windows. For example, when upgrading from Windows Vista to Windows 7, uninstall your HP product using the Uninstaller program provided in the HP program group (see the Uninstaller section), and then upgrade to the new operating system. After the operating system upgrade is complete, reinstall your HP product using the latest software available at HP.com IV. TECHNICAL ASSISTANCE CUSTOMER SUPPORT For customer support information, see the user guide or the support flyer that was in the box, or call your local authorized HP dealer ENWW Installation notes 175

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III. LATE-BREAKING INFORMATION
KNOWN ISSUES AND WORKAROUNDS
General
●
Firewall software can interfere with the HP software installer. Disable the firewall before starting
a network installation or the product might not be detected.
●
Certain Hi-Speed USB 2.0 cards ship with unsigned host controller drivers. If you have
purchased a Hi-Speed USB 2.0 add-in card and have an unsigned driver, you might experience
driver installation problems or communication problems between the product and HP software. It
is recommended that you always use a Microsoft WHQL Certified host controller driver with your
USB hardware.
●
Functionality is limited on systems that only meet minimum system requirements. Many images
and videos require a system that meets the recommended system requirements for acceptable
performance and reliability.
●
If the product is not detected during software installation, check the following:
◦
Verify that your cable is Hi-Speed USB 2.0 high-speed compliant.
◦
Ensure that your cable is connected correctly. Remove the USB cable, look at the end of
the cable, and then match it to the pattern on the USB port. Make sure that it is not upside
down. Insert one end of the USB cable completely into the USB port on the HP product,
and insert the other end into the back of the computer.
◦
Verify that the product is turned on. The product will not be discovered by the software if the
power is off.
◦
Ensure that your USB cable is no more than 5 m (16.4 ft) in length.
◦
Verify that the USB port is enabled. Some computers ship with disabled USB ports.
Upgrading Windows
HP recommends that you uninstall HP products before upgrading to a newer supported version of
Windows. For example, when upgrading from Windows Vista to Windows 7, uninstall your HP product
using the Uninstaller program provided in the HP program group (see the Uninstaller section), and
then upgrade to the new operating system. After the operating system upgrade is complete, reinstall
your HP product using the latest software available at HP.com
IV. TECHNICAL ASSISTANCE
CUSTOMER SUPPORT
For customer support information, see the user guide or the support flyer that was in the box, or call
your local authorized HP dealer
ENWW
Installation notes
175