Question about Canon CanoScan 8400F Flatbed Scanner

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I have a canonScan 8400F there's a connection with computer however when i open adobe photoshop there's no preview..

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I have many years experience repairing Canon scanners so here is my suggestion for you.

I guess I have a couple of questions for you first. Does your computer recognize the scanner is attached to your computer? If so can you scan in any other program like Windows Paint? If you say yes to both of these then the problem is with configuring your adobe software. If you say no then we need to go back to basics. I would google Canon Canoscan 8400F Drivers, it should pull up a page that will take you to Canons official website. Download the latest drivers from Canon's official website,the drivers are dated and the ones towards the top should be the latest drivers. The drivers are free. Also while your there download the newest version of Capture Perfect its a utility program for scanning its free also but download the latest one. Now make sure your scanner is unplugged from your computer, the cable that goes from the scanner to the computer. Install the latest drivers on to your computer. Once they are installed, then with your scanner powered on attach the cable from the scanner to your computer. A window should pop up saying a new device (or drivers) is being installed. Once this completes reboot your scanner and you should be able to scan again.

I use Paint shop and in order for me to scan with my Canon scanner I need to go to aquire and image, from a scanner or camera, and then it controls the scanner and does the scanning for me.

I hope this helps you out.

Posted on Apr 01, 2011

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Posted on Jan 02, 2017

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I installed photoshop 7.0 on my pc.when i tried to start it the error comes "could complete your request because of missing or invalid personalisation"


Errors such as this could happen when an older version or BETA (testing) version of Photoshop CS has already been installed on the computer, or when your registration information file does not get written properly or is corrupted. When there exists multiple copies of Photoshop in the Applications folder, your system and Photoshop may get confused and encounter conflict with which files it should use to verify personalization. The same case could happen if there is a BETA version of Photoshop currently or previously installed on your computer. This conflict can lead to personalization errors when launching the application.
The Photoshop CS installer personalizes the Photoshop CS application within the Applications folder alphabetically. If multiple instances of the Photoshop CS folder are present, only the first one alphabetically will be personalized. New installations of Photoshop CS (which folder falls alphabetically after the first installation) will not be personalized.
A damaged or incorrectly written personalization file (userreg or ps.sif) can also cause Photoshop to return a personalization error when you start it. Some troubleshooting steps which I recommend are as follows:
Solution 1: Uninstall and then re-install most recent version of Photoshop.
If Photoshop's serial number is not displayed on the bottom of Photoshop CS's sg Photoshop, you may have another version of Photoshop CS on the computer. Uninstall the copy of Photoshop and reinstall it. It is especially important to remove any beta copies of Photoshop you may have.
How to remove and uninstall Photoshop: 1. Move any personal files from the Adobe Photoshop CS folder(s) on the hard disk to another location. 2. Uninstall Photoshop from the control panel 2. Delete all Adobe Photoshop CS folder(s) in the Applications folder if there are any. 3. Drag the Users/[user name]/Library/Preferences/Adobe Photoshop CS Settings folder to the Trash. 4. Insert the Photoshop CD-ROM, double-click the installer file in the Photoshop folder on the CD-ROM, and then follow the on-screen instructions to complete the installation.

Solution 2: If the reinstallation did not work, download the Adobe Creative Suite Cleaner Tool at http://www.adobe.com/support/contact/cscleanertool.html
Just follow the instructions on the same page mentioned. This will help you clean out all the files of Photoshop that was installed to your system, as well as the registries that may also cause conflicts.
Solution 3: Use the ImageReady personalization file.
If Photoshop's serial number is displayed on the splash screen, or you performed the solutions referred to above, the cause of the errors is a personalization file that is not written correctly or is damaged. If you can successfully open ImageReady, you can use ImageReady's personalization file for Photoshop.
To Use the ImageReady personalization file: 1. Ctrl+click the Adobe Photoshop CS application file in Applications/Adobe Photoshop CS and choose Show Package Contents. 2. Open the Contents folder, and then open the Resources folder. 3. Locate the USERREG file in the Resources folder, and drag it to the desktop. Keep the Resources folder open. 4. Ctrl+click the Adobe ImageReady CS application file in Applications/Adobe Photoshop CS and choose Show Package Contents. 5. Open the Contents folder, and then open the Resources folder. 6. Locate the USERREG file in the ImageReady Resources folder, and copy it to the Photoshop Package's Contents/Resource folder. 7. Close all open folders, and restart Photoshop. Restart ImageReady to make sure that the USERREG file was copied, not moved, to the Photoshop Package's Contents/Resource folder.
Solution 4: Replace the Photoshop .sif file.
If Photoshop does not open without error, also replace the .sif file: 1. Ctrl+click the Adobe Photoshop CS application file in Applications/Adobe Photoshop CS and choose Show Package Contents. 2. Open the Contents folder, and then open the Resources folder and the ASN folder in the Resources folder. 3. Locate the PS.SIF file in the ASN folder, and drag it to the desktop. Keep the ASN folder open. 4. Ctrl+click the Adobe ImageReady CS application file in Applications/Adobe Photoshop CS and choose Show Package Contents. 5. Open the Contents folder, and then open the Resources folder and the ASN folder in the Resources folder. 6. Locate the PS.SIF file in the ASN folder, and copy it to the Photoshop Package's Contents/Resource folder. 7. Close all open folders, and restart Photoshop. Also restart ImageReady to make sure the PS.SIF file was copied, not moved to the Photoshop Package's Contents/Resource folder. 8. In setup editor, under components, expand the Typelibrary.tlb component. Expand advertising and remove all entries under it. (should be only one.) Compile and install.

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Do one of the following solutions: Solution 1: Remove the NOKIAManager.mox file.

  1. Exit Photoshop Elements.
  2. Open the C:\Program Files\Adobe\Photoshop Elements 6.0\moxplugins folder.
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Note: The NOKIAManager.mox plug-in file is required for Adobe Photo Downloader to download photos from a Nokia mobile phone. If you use a Nokia mobile phone, use Solution 2. If you later decide to use a Nokia mobile phone, either move the NOKIAManager.mox file back to the original location or reinstall Photoshop Elements.
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Solution 3: Disable Adobe Photo Downloader.

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Note: This solution will prevent Adobe Photo Downloader from starting when Windows starts, and it will not appear automatically when you plug in a camera, card reader, flash memory drive, or other memory device. When you plug in one of these devices, and in order to download photos into the Organizer, you will need to start Photoshop Elements and choose File > Get Photos or Videos > From Camera or Card Reader.

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