TWAIN devices

Last published : Oct 15, 2026
Related information
Devices

Requirements

  • The scanner must be TWAIN compliant.
  • Install the TWAIN drivers on the local device. They are not required on the server.
  • Attach the scanner locally (for example, through USB).
  • Ensure that the scanner is using the local TWAIN driver and not the Windows Image Acquisition service.
  • Ensure that there is no policy applied to the user account that is used for the test, and which is limiting the bandwidth within the ICA® session. For example, client USB redirection bandwidth limit.
For information about policy settings, see TWAIN devices policy settings.