The high-speed mode is suitable when scanning bi-level originals, such as text and line art. When scanning continuous tone images, as with 8-bit monochrome and 24-bit color scanning, use the normal mode.

Note:

To obtain the full benefit of high-speed data transfer, use the high speed scanning mode in combination with block-structure data lock transfer.

The actual effectiveness of high speed scanning may be limited by host computer conditions, such as processing speed.

Command Reference 3-61