HP Photosmart 3310 All-in-One Scanner stopped working

Scan an image
You can start a scan from your computer or from the HP All-in-One.
This section explains how to scan from the control panel of the HP All-in-One only.
To use the scan features, the HP All-in-One and computer must be connected and turned on.
The HP Photosmart Software (Windows) or HP Photosmart Mac Software (Mac) must also be installed and running on your computer prior to scanning.
● On a Windows computer, look for the HP Digital Imaging Monitor icon in the Windows system tray (at the lower right side of the screen, near the time) to verify the software is running.
Note Closing the HP Digital Imaging Monitor icon in the Windows system tray can cause the HP All-in-One to lose some of its scan functionality. If this happens, you can restore full functionality by restarting your computer or by starting the HP Photosmart Software.
● On a Mac, the software is always running.
Tip You can use the HP Photosmart Software (Windows) or HP Photosmart Mac Software (Mac) to scan images, including panorama images. Using this software, you can also edit, print, and even share your scanned images. For more information, see the onscreen Help that came with the HP All-in-One.
To scan to a computer
1. Place your original print side down on the left front corner of the glass.
2. Press Scan.
A preview image of the scan appears on your computer, where you can edit it.
3. Make any edits to the preview image, and then click Accept when you are finished.
To stop scanning ➔ Press Cancel on the control panel.
If this doesn't work for some reason you should also be able to scan using windows camera and scanning wizard, the link will show you how if you have XP, just scroll down past the "how to print" section.
http://www.microsoft.com/windowsxp/using/setup/hwandprograms/printfaxscan.mspx
or this if you have Vista:
If you cannot find the scanner wizard it could be because your version of vista doesn't have it, I'm not 100% but I think it was only packaged with the business version of vista.
If this is the case then you can download a free program called IrfanView from there site: http://www.irfanview.com/
Click the Start icon. Click All Programs .
Click Windows Photo Gallery .
Click File and then click Import From Scanner or Camera .
Click Import .
Click Scan .
If you cannot find the scanner wizard it could be because your version of vista doesn't have it, I'm not 100% but I think it was only packaged with the business version of vista.
If this is the case then you can download a free program called IrfanView from there site: http://www.irfanview.com/
I hope that helps..
Regards
Mike

Don't reinstall Photoshop any more, that's not necessary. Just leave PS alone.
Have you done anything, like upgraded the operating system?
Try a couple of things. We'll start with the easiest.
Try scanning directly from the "Preview" application - this works really well.
Open the application "Preview"
Go to the File menu, and then "Import from Scanner" - hopefully your scanner shows up ...
This is a great way to scan.
If your printer/scanner does not show up when you do this, you will need to (sorry to say) re-install the software for the printer. But you said you already did that!
I'm going to suggest, if you haven't already, to go to hp.com and find your printer and download the package of software for it and reinstall that way - they periodically update the software. HP printers are a bit fussy about this, so reinstalling the "latest" HP software is definitely worth trying.
Hope that helps!

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I suppose you should have some software running on your system to accept the file.

Check the user guide.

Scan an image
You can start a scan from your computer or from the HP All-in-One. This section
explains how to scan from the control panel of the HP All-in-One only.
To use the scan features, the HP All-in-One and computer must be connected and
turned on. The HP Photosmart Software (Windows) or HP Photosmart Mac Software
(Mac) must also be installed and running on your computer prior to scanning.
● On a Windows computer, look for the HP Digital Imaging Monitor icon in the
Windows system tray (at the lower right side of the screen, near the time) to verify
the software is running.
HP All-in-One overview
Note Closing the HP Digital Imaging Monitor icon in the Windows
system tray can cause the HP All-in-One to lose some of its scan
functionality. If this happens, you can restore full functionality by restarting
your computer or by starting the HP Photosmart Software.
● On a Mac, the software is always running.
Tip You can use the HP Photosmart Software (Windows) or HP Photosmart
Mac Software (Mac) to scan images, including panorama images. Using this
software, you can also edit, print, and even share your scanned images. For
more information, see the onscreen Help that came with the HP All-in-One.
To scan to a computer
1. Place your original print side down on the left front corner of the glass.
2. Press Start Scan/Reprints.
A preview image of the scan appears on your computer, where you can edit it.
3. Make any edits to the preview image, and then click Accept when you are
finished.

You are saying that the printer/scanner is directly connected to the computer?

You need to start checking the physical connection. Make sure that you can print to make sure that the printer is being recognized by the computer.

Second, try uninstalling and reinstalling the printer/scanner driver using the CD that came with it. Most of the time, it's the driver that causing the problem.

Hope this helps and have a good day!

Please try these steps and let me know the result.... I would provide you the next step....

VISTA
1. Click the Start (Windows) icon.
2. Click All Programs.
3. Click Windows Photo Gallery.
4. Click File and then click Import From Scanner or Camera.
5. Click Import.
6. Click Scan.

XP:
=== Scanning with Paint: ===

1. Click the Start (Windows) icon.
2. Click All Programs.
3. Click Accessories.
4. Click Paint.
5. Click File and then click From Scanner or Camera.
6. Click Scan.

Try these steps on the PC:

VISTA
1. Click the Start (Windows) icon.
2. Click All Programs.
3. Click Windows Photo Gallery.
4. Click File and then click Import From Scanner or Camera.
5. Click Import.
6. Click Scan.

XP:
=== Scanning with Paint: ===

1. Click the Start (Windows) icon.
2. Click All Programs.
3. Click Accessories.
4. Click Paint.
5. Click File and then click From Scanner or Camera.
6. Click Scan.

Follow thes below steps to scan to PC and save it without using HP software.

WIndows XP:

1. === Scanning with Paint: ===

1. Click the Start (Windows) icon.
2. Click All Programs.
3. Click Accessories.
4. Click Paint.
5. Click File and then click From Scanner or Camera.
6. Click Scan.

Windows Vista:

1.Click the Start (Windows) icon.
2. Click All Programs.
3. Click Windows Photo Gallery.
4. Click File and then click Import From Scanner or Camera.
5. Click Import.
6. Click Scan.

Try to scan using the below steps
1.Click the Start (Windows) icon.
2. Click All Programs.
3. Click Windows Photo Gallery.
4. Click File and then click Import From Scanner or Camera.
5. Click Import.
6. Click Scan.
If you are able to scan in this way, you can perform a level two uninstallation.

SOLUTION: Download the latest version (v 7.7.2) of the HP software from the HP website at www.hp.com. Uninstall the previous software and then reinstall the downloaded software. WORKAROUND: Follow the steps below:

1. Load the slides or negatives in the TMA and place it on the scanner glass.
2. Open Image Zone and click on Scan Picture to scan everything.
3. After the scan is completed, change the settings from glass to scan slide/negative from TMA. The unit will scan again and show the four slides or negatives in the preview.
4. Click on the first picture in the scan preview and make the following changes:
   • change the dust and scratch removal/sharpness to none
   • change the resolution to 72 dpi
5. Click on the second picture in the scan preview and make the same changes described above.
6. Click on the third picture and then the fourth picture and make the same changes.
7. Click Accept . The correctly scanned slide or negative images will be saved in the Gallery.

i had the same problem with vista home premium. vista does not support one touch scanning (pressing the scan button on the printer). to use scanner with vista home os use the paint application and start scanning with the file section. step by step:
start (windows) icon lower left tool bar
programs
accessories
paint
file
from scanner or camera
the hp should start working - note: i sent a short cut to the desk top for the paint program for future use