Canon FACSIMILE BASIC 2000 Service Manual page 56

GENERAL DESCRIPTION OF A FACSIMILE
2.2.3 Electrophotographic method
Canon is putting onto the market facsimiles that use a LASER beam
printer (LBP) engine.
By this method, the pattern to be recorded is exposed on the surface of a
photosensitive drum by a LASER beam, and toner is made to adhere on
that pattern. Next, the toner on the photosensitive drum is transferred to the
recording paper, and is then fixed on the paper by heat and pressure. This
series of operations is called the "print process."
This recording method has the same advantages as the ink jet recording
method as it uses plain paper as the recording paper. It also has an extra
feature in that it records at high speed. However, as its structure is rela-
tively elaborate and expensive, it is widely used in medium- and high-class
facsimiles.
2–20
(1) Primary charging
Primary charging
roller
Photosensitive drum
(4) Transfer
Photosensitive
drum
static
charge
eliminator
Transfer charging roller
Fig. 2-18 Electrophotographic System
(2) Exposure
Photosensitive
drum
Laser beam
(5) Fixing
Fixing
heater
Fixing film
Fixing pressure roller
(3) Developing
Minus-
Blade
charged
toner
Developing
cylinder
Photosensitive drum
(6) Cleaning
Cleaner
blade
Photosensitive drum