Canon fax basic 2000 Manuale Di Servizio

GENERAL DESCRIPTION OF A FACSIMILE

2–18

2.2

Recording Section

This is the so-called printer.

Here, picture data that is sent from the other party is printed on paper.

Generally, the following three methods are used for recording on a facsim-

ile.

2.2.1 Thermal recording method

This recording method uses paper (heat-sensitive paper) that has been

coated with a color-forming layer. Color is formed on this paper by the

action of heat on its surface. Heat is generated by a thermal element (ther-

mal head) that is held in contact against the surface of the color-forming

layer.

This recording method has a drawback in that it is not suitable to long peri-

ods of storage as heat-sensitive paper fades with time. However, it has the

advantages that facsimiles can be made compact due to its simple structure

and is maintenance-free. For these reasons, it is the most widely used of

the recording methods in entry facsimile models such as facsimiles for

household use.

Fig. 2-16   Thermal Recording Method

Surface

color-forming

layer

Thermal element

Image signal

Color formation

Paper