Error Troubleshooting
Phaser 7100 Service Manual Xerox Internal Use Only2-462
USB Port Testing
In situations where USB communications fail, test the printer’s USB Port directly using a USB cable and
a second, known good USB Port. A successful test using this procedure eliminates the printer’s USB Port
as the root cause.
Initial Actions
• Check that the driver software is properly installed on the host.
• Make sure the USB cable is connected at both ends and is serviceable.
• Print a Configuration page and verify that USB 2.0 is enabled in the printer’s NVRAM.
• Reboot the printer.
• If the problem persists, follow the procedure below.
Note: The testing procedure was developed for Windows XP. If a different operating system is in
use, adapt the steps as necessary.
USB Port Verification
1. Verify that the printer is Ready.
2. Insert the “Software and Product Documentation” CD-ROM into the computer.
3. If the installer autoruns, exit the installer window.
4. Connect a USB cable between the printer and computer’s USB Ports. The computer automatically
detects the new hardware and assigns a driver.
Note: If the driver is not installed on the computer, locate the driver files on the CD-ROM. Once the
files are located, the computer installs the driver and automatically configures it to match the
printer’s feature set.
5. On the computer, click Start > Settings > Printers and Faxes.
6. Locate the printer being tested, right-click and from the pull-down menu, select Properties.
7. Open the General tab and click Print Test Page to generate the test print. If the test page prints,
the USB port is functioning normally.
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