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g. Enter a filename for the backed up Registry.
HP suggests naming the file with the current date; for example: Registry
Backup 04_01_07.
h . Click  Save to save the Registry.
6. Edit the registry.
To edit the Registry
a. Select the  HKEY_LOCAL_MACHINE\System\CurrentControlSet
\Services\Spooler  Registry key.
Details of the Registry key appears on the pane to the right.
b . Check the  DependOnService  data string (in the pane on the right) to see if
lexbces  is listed in the  Data column.
c . If the  Data column contains  lexbces, right-click  DependOnService  and
select  Modify .
Do one of the following:
• If you see only  lexbces, but not  RPCSS, delete  lexbces  and enter
RPCSS .
• If you see both  lexbces and RPCSS , delete only  lexbces and keep
RPCSS .
d . Click  OK.
7. Restart the computer, and then try to scan again.
If you can scan successfully, then proceed with the next step to restart the
Lexbcserver  service.
NOTE:Restarting the service enables the normal functionality of the
Lexmark or Dell devices without affecting HP software.
8. Restart the  Lexbcserver  service.
To restart the service
a . On the Windows taskbar, click  Start, right-click  My Computer , and then click
Manage .
The  Computer Management  screen appears.
b . Double-click  Services and Applications , and then double-click Services.
c . In the right pane, right-click  Lexbceserver, and then click  Properties.
d .On the  General tab , in the Service status  area, click Start.
e .From the  Startup type  drop-down menu, select  Automatic, and then click
OK .
f . Click  OK to close the dialog box.
Cause: The Lexbceserver  service installed by a Lexmark printer, Lexmark all-in-
one, or Dell all-in-one, caused a scan communication error.
If this did not solve the issue, try the next solution.
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Solution 9: Run the Scan Diagnostic UtilitySolution: Download and run the  Scan Diagnostic utility to find and correct
problems with your product.
To download and run the Scan Diagnostic utility
1. Go to: 
www.hp.com  and click Software and driver downloads .
2. Select  Download drivers and software (and firmware) .
3. Type your product name and model number in the field provided, and then press
Enter .
4. Select the operat ing system of your comp uter where the HP software is installed.
5. Go to the  Utility section and download the  HP Scan diagnostic utility.
6. Try to scan.
If an error condition is identified with any of the HP software components, a red
X is displayed next to the component. If there is no error condition, a green check
mark is displayed next to the component. The utility is equipped with a  Fix button
to correct the e rror conditions.
Cause: There was a problem with the connection between the product and the
computer.
If this did not solve the issue, try the next solution.
Solution 10: Download and install the unexpected internal error and
communications failure patch
Solution: Download and instal the  unexpected internal error and
communications failure  patch.
This patch resolves the  An unexpected internal error has occurred  error and other
communication failures with the product.
To install the patch
1. Go to: 
www.hp.com  and click Software and driver downloads .
2. Select  Download drivers and software (and firmware) .
3. Select the operat ing system of your comp uter where the HP software is installed.
4. Go to the  Patch section and download the  HP Image zone/photo and imaging
unexpected internal error and communications failure patch .
5. Double-click the patch to install it on the computer.
6. Try to scan.
Cause: You needed to install the  unexpected internal error and
communications failure  patch.
If this did not solve the issue, try the next solution.
Solution 11: Check the USB chipset and controller Solution: Check the USB chipset and controller.
Scan communication errors can occur because of compatibility issues with USB
chipsets installed on the computer. This can be caused by a mismatch in the
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handshake timing between HP product chipset and certain types of USB chipsets on
the computer.
To check the USB chipset and controller
1.On the Windows taskbar, click  Start, right-click  My Computer , and then click
Properties .
2. Click the  Hardware  tab, and then click  Device Manager.
3. Open  Universal Serial Bus Controllers  by clicking the plus sign (+) next to it.
4. Check if you have one of th e following chipsets listed:
• SIS 7001 USB host controller
•ALI chipsets
• NEC universal host controllers
• Intel 82801 AA, Intel 82801BA/BAM
NOTE: This is not a comprehensive list. If you are experiencing
communication issues while trying to scan, follow the steps below to resolve
the issue.
5. Disconnect all USB devices (printers,  scanners, cameras, etc.) from the
computer, except the mouse or keyboard.
6. Reconnect the USB cable to the USB port on the back of the product.
7. Reconnect the other end of the USB cable to a USB port on your computer.
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8.Make sure the power cord is firmly connected to both the product and the power
adaptor. Plug the power cord into a power outlet, surge protector, or power strip.
1Power connection
2Power cord and adaptor
3Power outlet
9.Turn on the product.
10. Print a self-test report to test the basic standalone functionality of the product.
See the following procedure for more information about printing a self-test report.
11. Try to scan.
If the scan is succe ssful, other USB devices connected to the computer might be
causing the problem.
12. If the scan is successful, then connect one USB device at a time to the computer.
13. Test the scanning functionality after each connection, until you identify which
piece of equipment is causing the problem.
14. If the product fails to scan. Or, does not establish communication with the
computer along with any of the USB devices plugged in, then connect a powered
USB hub between the product and the computer.
This might help to establish, or to maintain, communication between the computer
and the product. See the following section for more information about USB hubs.
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To print a self-test report
1.Load letter or A4 unused plain white paper into the input tray.
2. Press and hold the  Cancel button and then press the  Start Copy Color button.
The product prints a self-test report, which  might indicate the source of the printing
problem. A sample of the ink test area of the report is shown below.
3. Make sure the test patterns show a complete grid and the thick color lines are
complete.
• If more than a few lines in a pattern are broken, this might indicate a problem
with the nozzles. You might need to clean the print cartridges.
• If the black line is missing, faded, streaked, or shows lines, this might indicate a problem with the black or photo print cartridge in the right slot.
• If any of the color lines are missing, faded, streaked, or show lines, this might indicate a problem with the tri-color print cartridge in the left slot.
More information about using a USB hub
• Verify that the USB hub is a powered hub and the power adapter is plugged in.
Some powered hubs do not include the power adapter as a standard item.
• The hub must be plugged into a power source.
• Some hubs cannot handle more than four full-power USB devices. You can
connect a maximum of fi ve hubs to the system.
• If the product has trouble with a hub when the hubs are connected together, or
there are more than four devices on the hub, connect the product to the hub that
is directly connected to the computer (unless there are known issues).
Cause: There was a compatibilit y issue with USB chipsets installed on the
computer.
If this did not solve the issue, try the next solution.
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Solution 12: Uninstall and then reinstall the softwareSolution: Uninstall the software completely, and then reinstall it.
To uninstall the software and reset the product
1. Disconnect and reset the product.
To disconnect and reset the product
a. Make sure the product is turned on.
b . Press the  On button to turn off the product.
c . Disconnect the power cord from the back of the product.
d . Reconnect the power cord to the back of the product.
e . Press the  On button to turn on the product.
2. Uninstall the soft ware completely.
NOTE:It is important that you follow the uninstall procedure carefully to
ensure you have removed the software completely from the computer, before
reinstalling it.
To uninstall the  software completely
a . On the Windows taskbar, click  Start, Settings , Control Panel , (or just
Control Panel ).
b . Double-click  Add/Remove Programs  (or click Uninstall a program ).
c . Remove all the items that are related to the HP Photosmart Software.
CAUTION: If the computer is manufactured by HP or Compaq,  do not
remove any applications other than those listed below.
• HP Imaging device functions
• HP Document Viewer
• HP Photosmart Essential
• HP Image Zone
• HP Photo and imaging gallery
• HP Photosmart, Officejet, Deskjet (with the product name and software version number)
• HP Software update
• HP Share to Web
• HP Solution Center
•HP Director
• HP Memories Disk Greeting Card Creator 32
d .Go to  C:\Program Files\HP  or C:\Program Files\Hewlett-
Packard  (for some older products) and delete the  Digital Imaging
folder.
e .Go to  C:\WINDOWS  and rename the  twain_32 folder to twain_32 old .
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3.Turn off programs that run in the background.
NOTE: When the computer is turned on, a software group called the
Terminate and Stay Resident (TSR) programs automatically loads. These
programs activate some of the computer utilities, such as the anti-virus
software, but are not required for the computer to function. Occasionally,
TSRs prevent the HP software from loading so that it does not install properly.
In Windows Vista and Windows XP, use the MSCONFIG utility to prevent TSR
programs and services from starting up.
To turn off programs that run in the background
a . On the Windows taskbar, click  Start.
b . Depending on your operating syst em, do one of the following:
• In Windows Vista: In  Start Search, type MSCONFIG , and then press
Enter .
When the User Account Control dialog box appears, click  Continue.
• In Windows XP: Click  Run. When the  Run dialog box appears, type
MSCONFIG , and then press  Enter.
The  MSCONFIG  utility application appears.
c . Click the  General tab.
d . Click  Selective Startup .
e . If there is a check mark next to  Load Startup Items, click the check mark to
remove it.
f . Click the  Services tab, and select the  Hide All Microsoft Services  box.
g . Click  Disable all .
h . Click  Apply, and then click  Close.
NOTE: If you receive a message stating  Access is denied while making
changes, click  OK and continue. The message will not prevent you from
making the changes.
i . Click  Restart to apply the changes to the computer during the next restart.
After the computer  restarts, the You’ve used system configuration utility
to make changes to the way windows starts  message appears.
j . Click the check box next to  Do not show this message again .
4. Run the  Disk Cleanup  utility to delete temporary files and folders.
To run the Disk Cleanup utility
a . On the Windows taskbar, click  Start, click  Programs  or All Programs , and
then click  Accessories .
b . Click  System Tools , and then click  Disk Cleanup.
The  Disk Cleanup  analyzes the hard drive and then presents a report with a
list of components to delete.
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c. Select the appropriate check boxes to remove the unnecessary components.
More information about the Disk Cleanup utility
The Disk Cleanup utility frees hard disk space on your computer by doing the
following:
• Deleting temporary Internet files
• Deleting downloaded program files
• Emptying the Recycle Bin
• Deleting files from your temporary folder
• Deleting files created by other Windows tools
• Removing optional Windows components that you do not use
d . After selecting the comp onents to remove, click OK.
5. Install the software.
To install the software
a. Insert software CD into the CD-ROM drive of the computer.
The software installation will start automatically.
NOTE: If the installation does not run automatically, from the Windows
Start  menu, click  Start Search  (or Run ). In the  Start Search  (or Run
dialog box), type  d:\setup.exe, and then press Enter. (If your CD-ROM
drive is not assigned to drive letter D, enter the appropriate drive letter.)
b . Follow the prompts on the computer screen to install the software.
6. Try using the product again.
Cause: The software needed to be completely uninstalled and reinstalled.
Unable to print
Try the following solutions to resolve the issue. Solutions are listed in order, with the most
likely solution first. If the first solution does not solve the problem, continue trying the
remaining solutions until the issue is resolved.
•
Solution 1: Print a test page
•
Solution 2: Clear the print queue
•
Solution 3: Disconnect and reconnect the USB cable
•
Solution 4: Verify that the product is set as the default printer
•
Solution 5: Check if the printer is paused or offline
•
Solution 6: Clear the print queue manually
•
Solution 7: Stop and restart the print spooler
•
Solution 8: Verify whether the software application has a problem
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Solution 1: Print a test pageSolution: Print a test page to see if the product can print and is communicating with
the computer.
To print a test page
1. Depending upon y our operating system, do  one of the following:
• Windows Vista: On the  Windows taskbar, click Start, click  Control Panel , and
then click  Printers.
• Windows XP: On the Windows taskbar, click  Start, click  Control Panel , and
then click  Printers and Faxes .
2. Right-click the icon for your product, and then click  Properties.
3. On the  General tab , click Print Test Page .
The product should print a test page.
If the test page fails to print, make sure you set up the product properly. See the Setup
Guide that came with the product for information about setting it up.
Cause: The product was not set up properly.
If this did not solve the issue, try the next solution.
Solution 2: Clear the print queue
Solution: Restart your computer to clear the print queue.
To clear the print queue
1. Restart your computer.
2. After the computer has restarted, check the print queue.
a. Depending upon your  operating system, do one of the following:
• Windows Vista: On the  Windows taskbar, click Start, click  Control
Panel , and then click  Printers.
• Windows XP: On the  Windows taskbar, click Start, click  Control Panel ,
and then click  Printers and Faxes .
b . Double-click the icon for your product to open the print queue.
If there are no print jobs pending, the issue might have been resolved.
3. Try to print again.
Cause: The computer needed to be restarted to clear the print queue.
If this did not solve the issue, try the next solution.
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Solution 3: Disconnect and reconnect the USB cableSolution: Disconnect the USB cable from the computer and product, and then
reconnect it.
To disconnect and reconnect the USB cable
1. Disconnect the USB cable from the product.
2. Disconnect the USB cable from the computer.
3. Leave the USB cable disconnected for 5-6 seconds.
4. Reconnect the USB cable to the product and the computer.
After reconnecting the USB cable, the product should start printing the jobs in
queue.
NOTE: If you are connecting the product through a USB hub, make sure the
hub is turned on. If the hub is on, try connecting directly to your computer.
5. If the product does not start printing  automatically, start another print job.
Cause: The USB cable needed to be disconnected.
If this did not solve the issue, try the next solution.
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