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HP Customer Support - Knowledge Base

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HP ScanJet Pro, ScanJet Enterprise Flow - Power issues

The following topics describe how to troubleshoot scanner power issues.

Check that the scanner has power

The power cable is connected between the scanner and a power outlet.
  • Ensure that the power cable is securely connected between the scanner and a live electrical outlet.
  • If the power cable is connected to a surge protector, ensure that the surge protector is plugged into an outlet and turned on.
  • Ensure that the scanner is receiving power.
    • Check that the Power LED on the control panel is on.
    • If the Power LED is not on, ensure that power is available to the power outlet or surge protector that the power supply is plugged into.
    • If power is available to the power outlet or surge protector but the Power LED is still not on, the power supply might be defective. Go to www.hp.com/go/sj2000s1, www.hp.com/go/sj3000s3, www.hp.com/go/sj5000s4 or www.hp.com/go/sj7000s3 for assistance.

Scanner will not turn on

If the scanner will not turn on after pressing the Power button, check the following:
  • The scanner might have been unplugged. Check to see that the power supply has not become disconnected from the scanner or unplugged from the power source.
  • The power supply might not be working.
    • Check that the Power LED on the control panel is on.
    • If the Power LED is not on, ensure that power is available to the power outlet or surge protector that the power supply is plugged into.
    • If power is available to the power outlet or surge protector but the Power LED is still not on, the power supply might be defective. Go to www.hp.com/go/sj2000s1, www.hp.com/go/sj3000s3, www.hp.com/go/sj5000s4 or www.hp.com/go/sj7000s3 for assistance.

The scanner has paused or shut down

If the scanner stops scanning, follow these steps. After each step, start a scan to see if the scanner is working. If the problem persists, proceed with the next step.
  1. A cable might be loose. Ensure that both the USB cable and power supply are properly connected.
    Use the cable that was included with the scanner. Another USB cable might not be compatible with the scanner.
  2. Ensure that the scanner is receiving power.
    1. Check that the Power LED on the control panel is on.
    2. If the Power LED is not on, ensure that power is available to the power outlet or surge protector that the power supply is plugged into.
    3. If power is available to the power outlet or surge protector but the Power LED is still not on, unplug the power cable from the power source, wait 30 seconds, and then plug it back in.
    4. If the issue is not fixed, the power supply might be defective. Go to www.hp.com/go/sj2000s1, www.hp.com/go/sj3000s3, www.hp.com/go/sj5000s4 or www.hp.com/go/sj7000s3 for assistance.
  3. Restart your computer.
  4. Windows: On the computer, open Control Panel and use the Add/Remove tool (in Vista, Windows 7, and Windows 8, the Programs and Features tool) to uninstall the following applications:
    • HP ScanJet Pro 2000 s1 or 3000 s3
    • HP ScanJet Enterprise Flow 5000 s4 or 7000 s3
    • HP ScanJet Pro 3000 s3 ISIS Driver
    • HP ScanJet Enterprise Flow 5000 s4 or 7000 s3 ISIS Driver
    • HP ScanJet Plugin
    • HP Scan
    • HP Smart Document Scan Software
  5. Reinstall the applications by doing one of the following.
    • Reconnect the USB cable and power supply to the scanner, and then press the Power button to turn on the scanner. Reinstall the HP ScanJet Pro 2000 s1 or HP ScanJet 3000 s3 software and drivers.
    • Reinstall the applications using the HP scanning software CD that came with your scanner.

Scanner keeps turning off

By default, the scanner will enter Sleep Mode prior to 15 minutes of inactivity, and will turn off automatically after two hours of inactivity to conserve power.
Windows: To change the defaults, complete these steps:
  1. Launch the HP Scanner Tools Utility.
  2. Click the Settings tab, and then select the appropriate Sleep Mode and Auto-Off settings.
    • To specify the period of inactivity after which the scanner goes into Sleep Mode, select 15 minutes or 59 minutes from the Sleep: Put the scanner to sleep after: drop-down list.
    • To specify the period of inactivity after which the scanner automatically turns off, select the appropriate value (1 hour, 2 hours, 4 hours, or 8 hours) from the Auto-Off: Turn off the scanner after: drop-down list.
OS X: Use HP Utility to change these defaults.

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