These errors are normally the result of a failed scan, a bad installation, communication problems or software conflicts. Check or perform the following steps until the problem is corrected.
Step One: Restart the computer
Close all programs and restart the computer. A task that Windows requires may have stopped running or available system resources may have decreased due to tasks left running. Restarting will refresh all Windows tasks as well as increase the system resources available.
Step two: Verify that the cable is connected and the all-in-one is "On"
Verify that the cable is connected correctly. If the cable is connected into a USB port on a keyboard, move the cable to one of the main USB ports in the PC. Some keyboard USB ports do not provide sufficient power to supply a device such as the all-in-one.
Step three: Check the application
If the error occurs while trying to scan from within an application (not the HP Director), verify that the software is set to select the HP all-in-one product as the TWAIN source. It may be necessary to reinstall the application to get it to recognize the HP all-in-one product as the TWAIN source. If the application is one of those listed in the "Scan To" tool from Settings in the Director, then try scanning to it from the Director.
Step four: Windows XP only: Change the Compatibility Mode settings
This step applies only to the following products and only in Windows XP. For other products, continue to Step 5.
Change the Compatibility Mode setting for the HP all-in-one desktop icon can correct the problem.
Right-click the HP product icon, and then click Properties .
Select the Compatibility tab.
Change the Compatibility Mode settings to enable running the program in Windows 2000 Compatibility mode, and then click OK .
Turn off the all-in-one.
Restart the computer.
Turn the all-in-one back on.
Step five: Check for the correct entries in the Device Manager
Verify that the unit was installed on a DOT4 virtual port in the Device Manager.
Right-click My Computer , and then click Properties .
Select the Device Manager tab (Windows 2000 select the Hardware tab , and then click Device Manager ).
Check the list of installed devices for references to DOT4 as shown in Figure 1. If there are no DOT4 references, the software has not installed correctly. If these entries are missing, the software did not install properly. Do the following steps to correct the problem:
Disconnect the communications cable to the all-in-one and unplug the power cable to the all-in-one.
Uninstall the HP all-in-one software.
Step six: Check for communication problems between the all-in-one and the computer
Communication between the all-in-one and the computer may have failed.
USB cable connected all-in-ones: Check for USB port communication problems. Parallel port installed all-in-one products: Check for parallel port communication problems.
Step seven: Check the computer to see if it is infected with a computer virus
If the all-in-one prints but will not scan correctly and does not show any symptoms of communications problems, the computer might be infected with a virus. Some viruses try to disable virus scanning software and in doing so disable scanning from the all-in-one.
If the scanning software works after installing the all-in-one software until the first time the computer is restarted, or quits working after a virus is discovered on the computer, there may be a virus related problem.
Step eight: Uninstall and then reinstall the all-in-one software
Do the following to uninstall and then reinstall the HP all-in-one software:
Follow the steps in the " Removing the HP software " section below to remove the all-in-one software.
Right-click My computer and then click Explore .
On the left side of the Windows Explorer screen, locate and open the Windows or WinNT folder.
Locate and open the Twain32 and/or Twain_32 folders.
Remove all files in these folders other than files that end with a .ds file extension. If you cannot see any file extensions, click Tools , click Folder options , select the View tab, and then remove the check from Hide file extensions for known file types .
Restart the computer and then reinstall the all-in-one software.
When the installation of the all-in-one software is complete, shutdown the computer.
Connect the communications and power cords to the HP all-in-one and verify that it is turned on and ready.
Restart the computer.
Step nine: Check for software interference
There may be a task running in the background that is interfering.
Try pressing the keys Ctrl + Alt + Delete at the same time. This should bring up the "Close Program" window.
Highlight and end task on all running tasks except for Explorer, Systray, and tasks that begin with "HPO." Press Ctrl + Alt + Delete to bring up the "Close Program" box for each and every task. The "Close Program" box will disappear when End Task is chosen.
Try launching a scan after all tasks are closed. If scanning works, then there is a software conflict. Restart the computer and repeat the steps to close down the tasks. Close down one at a time or in combinations and try scanning until the cause is found. If it is unknown what this task does, do the following:
Search for the file using the Find Files and Folders feature from the Start menu.
Right-click the task's program icon, and then click Properties .
Refer to the information on the Version tab to locate the software vendor. Call the software vendor for assistance or uninstall the product if not needed.
Sep 19, 2007 |
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