CANON SCANNER TECHNOLOGY

High-Precision Scanning Technology Expanding the Range of Digital Data Use

Canon has combined many of its advanced optical, electronics, and software technologies to create scanners that enable the conversion of camera film, photo prints, and text documents into high-grade digital data. Canon has worked to develop high-precision scanning technology not only for stand-alone scanners but also for the scanning function of copying machines.

Overview of Scanners

A scanner converts documents (including camera film, photo prints, and text documents) into digital data by exposing them to light to form an image that is "read" by an image sensor. (The see-through illustration shows a CCD flatbed scanner)

CCD and CIS Systems

Canon offers two types of flatbed scanner: CCD and CIS. CCD models incorporate high-precision optics and high-density CCD line sensors that illuminate the document with a light source such as white LED to deliver sharp, high-resolution images. CIS scanners are slim-bodied, energy-efficient models that utilize a three-color RGB LED as the light source and read documents with a CIS (Contact Image Sensor) of the same width as document originals.

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