Dosadi on Brother

vendor:

Brother (Brother Industries)

Dosadi is not affiliated with this manufacturer.

website:

www.brother.com or www.brother-usa.com

comments:

We are unable to verify that any current Brother scanning product has fully functional TWAIN support. It appears that Brother provided native TWAIN drivers for some models up to Windows 2000, but after that has provided only WIA drivers and is relying on Microsoft's WIA-TWAIN bridge for TWAIN support. As a result, we recommend avoiding any Brother scanner for TWAIN applications, see issues below.

devices:

Although Brother offers dozens of models, very few are explicitly listed by Brother as having TWAIN support (as of November 2005):

MFC-7420 / 7820N
MFC-8840 / 8840D / 8840DN
MFC-9420CN

issues:

Model(s)	Issue
Multiple MFC models	When scanning multiple pages from the ADF with the scan dialog hidden, only the last page is delivered to the application. There is no known work-around: When the unit is asked to scan it feeds all pages, but delivers only the last to the application.
	After each scan from the feeder, the device indicates that there are more pages available. Once the feeder goes empty, when the application requests the (imaginary) next page, the driver returns TWRC_CANCEL/TWCC_SUCCESS i.e. "User cancelled transfer." There is no way to distinguish this from an actual user cancel during normal scanning.
MFC-5840CN	Setting ICAP_PIXELTYPE does not update the value of ICAP_BITDEPTH.
	CAP_XFERCOUNT is initally 0 (!) and cannot be set to -1. MSG_RESET sets it to 0. It can be set to a positive integer, and during scanning it magically changes to 32767. Extremely silly bugs.
	Setting CAP_FEEDERENABLED to TRUE or FALSE returns failure (TWRC_FAILURE/TWCC_BUMMER) - but selects the feeder anyway.
	Querying CAP_FEEDERLOADED always returns TRUE, whether there is paper in the feeder or not.
	With the user interface suppressed, selecting the feeder has no effect: The device always scans from the flatbed.

features:

Twister Reports: MFC 9070