Get error message after trying all the fixes

Question

My hp psc 1315 all-in-one worked fine until today..trying to scan a doc got this error message --
An unexpected error has occurred. Check OK to close program, and then try the following:
--restart the program
--restart the PC and then try again
--reinstall the Photo and Imaging software and try again
I tried all these - and downloaded new software after uninstall of old.
Still getting error message -- any suggestions please?
Thanks in advance.

Answer 1

Hello golden1, and thanks for the reponse!
I would suggest following the steps laid out in this document: An Unexpected Internal Error Has Occurred  which is found on http://hpanswers.blogspot.ca.
Step 1:
-In C:\Windows folder, look for "Twain_32", which should be there. Also, look for a folder called "Twain32". If this folder exists, it will be empty. Copy and paste the contents of "Twain_32" into "Twain32".
Step 2:
- In "Services" (to access Services, Go to Start, then Run. Type services.msc and hit enter. Make sure the service named Remote Procedure Call is Started.
- Go to Shell Hardware Detection, right click, and select properties.
- Set the Startup Type as Manual and hit Apply. Then you should be able to Start the service by hitting Start.
- Try to scan using the software. If you are unable to scan, try uninstalling and reinstalling the printer software.
Step 3:
If you if you are using downloaded software instead of the printer CD:
-Go to the Start menu, and go to Run. Then type %temp% and hit Enter.
-Locate the correct folder starting with "7z" (the correct folder contains "Util" and "CCC" folders).
-Open folder "Util".
- Open folder "CCC".
- Please run the L3uninstall.bat.
- When the uninstall has completed, restart the computer.
- Run Disk cleanup in "System Tools"
- Download and install the latest version of Adobe flash player: http://get.adobe.com/flashplayer/
- Delete everything in the Twain_32 folder, except "wiatwain.ds" (if anything).
- Rename the twain_32 folder "twain_old".
- Restart computer.
- Download printer software and reinstall.
If you are using the printer software disc, follow these steps instead of downloaded software:
- Go to the Start menu, and go to Computer.
- Double-click on the icon for the HP printer CD.
- Open folder "Util".
- Open folder "CCC".
- Please run the L3uninstall.bat.
- When the uninstall has completed, restart the computer.
- Run Disk cleanup in "System Tools"
- Download and install the latest version of Adobe flash player: http://get.adobe.com/flashplayer/
- Delete everything in the Twain_32 folder, except "wiatwain.ds" (if anything).
- Rename the twain_32 folder "twain_old".
- Restart computer
- Delete everything in the Twain_32 folder, except "wiatwain.ds" (if anything).
- Rename the twain_32 folder "twain_old".
- Restart computer.
- Download printer software and reinstall.
Step  4:
- Download an updated twain_32.dll file and place it in C:\Windows>twain_32. Replace the new file with the old.
Step 5:
- Perform a system restore, if the issue occurred recently. Be sure that you select a restore point dated before the issue occurred.  You can reference this document on how to do a system restore: http://windows.microsoft.com/en-CA/windows7/produc​ts/features/system-restore
If none of these steps do not resolve the issue, I 2would suggest you re-format the computer.
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Jamieson
I work on behalf of HP
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