| Value | Member | Description |
| -589 | CapabilitySequenceError | Capability has dependency on other capability |
| -588 | CapabilityBadOperation | Operation not supported by capability |
| -587 | StopScan | The feeder is stopped by the user |
| -586 | CheckDeviceOnline | The device has been powered off |
| -585 | FileWriteError | Error writing to the specified file |
| -584 | PaperDoubleFeed | Transfer failed because of a feeder error |
| -583 | PaperJam | Transfer failed because of a feeder error |
| -582 | NotEmpty | Directory is not empty and can not be deleted |
| -581 | FileNotFound | Input file name not found or output file name invalid |
| -580 | FileExists | Specified output file name already exists |
| -579 | Denied | Operation denied (device not ready) |
| -578 | CustomBase | Custom return code base |
| -577 | InvalidAccessRight | Invalid access right to file |
| -576 | NotValidFile | Invalid file |
| -575 | ReadFromFile | Error reading from file |
| -574 | InvalidVersionNumber | Invalid version number |
| -573 | WriteToFile | Error trying write to a file |
| -572 | InvalidHandle | Invalid handle was passed |
| -571 | OpenFile | Can't open required file |
| -570 | CapabilityNegotiationNotEnded | Capability negotiation ended before the current operation |
| -569 | InvalidState | TWAIN source state is not valid for the required operation |
| -568 | BadValue | Invalid capability value |
| -567 | SourceNotOpen | TWAIN source not being open |
| -566 | CapabilityNotSupported | Required capability not supported |
| -565 | EndOfList | End of the enumeration list |
| -564 | CheckStatus | An error in the status of the TWAIN source |
| -562 | NotInitialized | TWAIN source not initialized |
| -561 | InvalidDll | Invalid DLL |
| -560 | NoTwainLibrary | No Twain Library |
| -90 | Cancel | Operation was cancelled |
| -86 | BadProtocol | Unrecognized MSG DG DAT combination |
| -84 | OperationError | Source or Source Manager reported an error to the user and handled the error; no application action required. |
| -83 | MaxConnections | Data source is connected to maximum possible applications |
| -82 | NoDataSource | No Data Source |
| -81 | LowMemory | Not enough memory to perform operation |
| -80 | FailureUnknown | Failure due to unknown cause |