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HP Printers - Wireless Troubleshooting

Restart the router and printer

Restart the router and printer to resolve any connectivity error states.

NOTE: The following steps temporarily disconnect network and Internet connections.

Complete any tasks or downloads in progress before performing these steps, and bookmark this page to

keep troubleshooting if wireless issues persist.

1. Turn off the router by pressing the power button or disconnecting the power cord.

2. Turn off the printer and make sure any USB or Ethernet cables are not connected.

NOTE: If the printer is connected with a USB or Ethernet cable, the printer cannot connect

wirelessly.

3. Reconnect the power cord to the router or turn it back on, then wait for the Internet activity light

to display a normal connected status.

4. Turn on the printer, then try to print.

HP Printers - USB Scanner Connection Error (Windows)

This document is for HP multifunction printers connected to a Windows computer with a USB cable.

When you try to scan, the computer or the scanner is not found or the scan fails. One of the following

error messages might display.

 An error occurred communicating with the scanning device

 An error occurred while communicating with the HP imaging device

 Computer not found

 No Computer Detected

 No TWAIN compliant device installed

 Scan to computer is currently unavailable

 Scan Unsuccessful

 Scanner not found

 Scanner Unreachable

 The scan could not be initialized

Step 1: Restart the computer and printer

Restarting the computer and printer can restore a lost scan connection.

1. Turn off the printer.

2. Make sure the printer power cord connects directly to an electrical outlet and not through a

surge protector or power strip.

3. Close all running programs on your computer, then shut down the computer.

4. Turn on the printer.

5. Turn on the computer.

6. Try to scan.

Summary of content (7 pages)

PAGE 1
HP Printers - Wireless Troubleshooting Restart the router and printer Restart the router and printer to resolve any connectivity error states. NOTE: The following steps temporarily disconnect network and Internet connections. Complete any tasks or downloads in progress before performing these steps, and bookmark this page to keep troubleshooting if wireless issues persist. 1. Turn off the router by pressing the power button or disconnecting the power cord. 2.
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If the error persists, continue to the next step. Step 2: Check the USB connection Reconnect the USB cable directly to a different port on the computer. If problems continue, unplug all other devices from any of the other USB ports and use a different USB cable to connect the printer.  Connect to a different USB port: Connect the cable to a different USB port on the computer. If you are connecting to a USB 3.0 computer port, try connecting to a USB 2.0 port.
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2. Click Start on the Welcome screen. 3. Select your printer, and then click Next. The Finding and Fixing Problems screen displays. Figure : Select your printer 4. Click Fix Scanning. 5. In the HP Print and Scan Doctor results screen, view the list of actionable results.
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6. Evaluate the results. o If you receive instructions to resolve an issue, follow the on-screen instructions, and then try to scan. If the issue persists, continue to the next step. o If you receive an Everything checks out okay with your scanner message, continue to the next step. Step 4: Uninstall the printer software Resolve scan connection issues by uninstalling the printer software before reinstalling the latest driver. 1.
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4. If your printer is connected to the computer with a USB cable, disconnect the USB cable from the printer. 5. Restart the computer and wait until Windows opens. Continue to the next step. Step 6: Reinstall the HP software Go to HP Customer Support to download the most current version of the full feature software for your printer. note: As an alternative, you can use the software disc if it supports the operating system installed on your computer. 1. Turn on the printer. 2.
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note: If you cannot start WIA, make sure the following services are also Started and set as the Automatic startup type.     Remote Procedure Call (RPC) Shell Hardware Detection RPC Endpoint Mapper DCOM Server Process Launcher 3. Try to scan. If the error persists, continue to the next step. Step 8: Set Windows Image Acquisition (WIA) dependencies Use the Command Prompt to reset the WIA dependencies to detect whether the print hardware might resolve the scanning issue. 1.
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If the error persists, continue to the next step. Step 9: Try scanning workarounds Use these workarounds to scan if the previous steps did not resolve the issue. Some workarounds might be unavailable depending on the printer. Try one of the other workarounds if the first method you tried did not work.