Canon MultiPASS L6000 Software Manual page 255

Printer driver
Software that sends printing instructions to a printer. The printer driver
keeps track of the attributes of a printer and the codes a program must
send to access those attributes.
T
TWAIN
Both a protocol and an application programmer's interface (API) that
allows you to input image data directly from any source (for example:
desktop and handheld scanners, video capture boards, digital cameras,
and other imaging equipment) without requiring you to switch out of the
application. It provides compatibility between image input devices and
applications by acting as the liaison between hardware devices and
software applications. Because your MultiPASS printer supports TWAIN,
you can use the scanning features of the MultiPASS printer with any
Windows application that supports TWAIN. Twain, the industry
standard, was developed by the TWAIN working group which consists of
representatives from many leaders in the scanner hardware and software
industry.
Glossary G-3