Canon BJC-6200 Reference Manual page 242

Cannot launch IS Scan from within the TWAIN-compatible
graphics application program
Check
Does the TWAIN-compatible graphics application program you are using
support the latest 32-bit TWAIN specifications or TWAIN Source Manager
(Version 1.5 or later)?
When IS Scan is used as a TWAIN interface, you must use the latest 32-bit
Windows
TWAIN-compatible graphics application program. Refer to the user's man-
ual of your application program.
When IS Scan is used as a TWAIN interface, you must use the graphics
Macintosh
application program that supports the TWAIN Source Manager (Version 1.5
or later). Refer to the user's manual of your application program.
Troubleshooting - Cannot be used with TWAIN-compatible application program 242