Forums › TWAIN Classic › How to get TWCC_PAPERDOUBLEFEED and TWCC_PAPERJAM status › Reply To: How to get TWCC_PAPERDOUBLEFEED and TWCC_PAPERJAM status
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if your device’s driver tosses you a messagebox with error information but then returns rc=success to the triplet then it sounds like the driver is screwy.
have you looked around on the vendor’s site for alternative drivers? There are often other drivers (not sure in the case of Canon) that provide better support for twain than the ones that install automagically with windows or from the Cd by default.