Visioneer Knowledgebase
Visioneer Knowledgebase
PT680, PT780, 9750, 9650, 9450, 8650
Title: Error 10 Scanner Locked or Makes a Grinding Noise
Article ID: VIS1094
Updated: 8/10/2006
Operating Systems: Windows XP / 2000 / Me / 98
Scanner Models: Visioneer Flatbed: 9520, 9420, 7400, 9320, 9220, 9120, 9020, 9000, 8900, 8800, 8700, 8600, 8100, 7700, 7600, 7300, 7100, 6600, 6400, 7600, 6200, 6100, 6000, 5800, 5600, 5300, 4800, 4500, 4400, 3300, 3100, 3000, PaperPort OneTouch
  Xerox Flatbed: X6400, X7600, X4800, X2400
  Xerox ADF: DM510, DM515, DM520, DM632, DM3640, DM752
When attempting to scan, you get a message "Error Code 10" or "Scanner Optical Module Locked, Please Unlock the Scanner".
This is a default response from the scanner to ensure that the scanner head is not physically locked when it is attempting to initialize. Generally this error message, or physical sound, indicates that the scanner hardware needs attention. There are several possible causes of this issue, such as the scanner shipping lock not fully disengaging.

Note: The 4800USB, 5800 and 5820 scanners do not have a physical lock switch. DO NOT attempt to open the scanner and unlock the hardware. This may be either a hardware failure or software failure. Please see further troubleshooting steps below.
  1. Toggle the lock switch on the scanner leaving the switch in the unlocked (open padlock) position.
  2. Ensure you are using the correct power supply for your scanner. If you are using a power supply that has the incorrect DC output, you will get a scanner locked error message. The flatbed scanners have 100-120V AC input and 12V DC output. Document feeder scanners are 100-240V AC input and 24V DC output.
    Note: The Xerox 6400 is the only flatbed scanner that uses a100-240V AC input with a 24V DC output.
  3. Plug the power directly to the wall, not a UPS battery back-up, power strip or surge protector. Power fluctuations from a UPS battery back-up, power strip or surge protector may be causing this error.
    Note: The Visioneer 7300 has no power supply as it is USB powered, if you are plugging into a hub or docking station try plugging the scanner's USB cable directly to the back of the computer.
  4. Verify your system has the minimum required memory for running the scanner: 64 MB RAM on Windows 98, me, 2000 and 128 MB RAM on Windows XP (250MB RAM is recommended.)
  5. Try reinstalling the scanner driver. For instructions on ReInstalling Your Scanner Driver, choose your Operating System below:


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Visioneer provides these technical articles for information use only. The information is generally for a specific scanner model distributed by Visioneer and a designated version of software provided with the scanner. Visioneer makes reasonable efforts to verify the accuracy of content and issue resolution in these technical articles but cannot guarantee any matter including accuracy or results. The articles are provided "as is", without representation or warranty, express or implied, whether of merchantability, fitness for particular purpose, title, or non-infringement. Visioneer disclaims any liability for damages, whether direct or indirect, special, incidental, or consequential, from use of the information in these articles. Visioneer does not evaluate any effect on software and hardware not provided by Visioneer, and therefore disclaims any liability for same. Visioneer is not responsible for the content of support pages accessed through external links. The articles are subject to revision or change without notice.