Toshiba 4511, 3511 manual Expression of Colors and 4-Step Copy Process

3. COPY PROCESS

3.1 Expression of Colors and 4-Step Copy Process

A variety of colors can be expressed by mixing the three primary colors : Yellow, magenta and cyan. Red can be created by mixing yellow and magenta; blue can be created by mixing magenta and cyan; green is created by mixing cyan and yellow; and mixing all the three primary colors allows you to obtain black.

This equipment has accomplished to improve reproducibility by adding black toner to the mixture of the above three colors at proper ratio.

	Yellow
Red		Green
	Black
Magenta	Blue	Cyan

[Three primary colors]

Fig. 3-101

3

e-STUDIO3511/4511 adopts a revolver mechanism which combines the three developer units of yellow, magenta and cyan. In this process, each image of cyan, magenta and yellow is developed in order by rotating these developers and overlaid on the transfer belt one after another. Then the black image developed by independent black developer unit is overlaid for the best expressions of colors. Four layers of color image (K→ C→ M→ Y) on the transfer belt are transferred onto paper.

1st transfer roller

Transfer belt

Fuser unit

2nd transfer roller

Color developer unit	Black developer		Main charger
	unit
Laser optical unit
		Photoconductive drum
		Fig. 3-102

November 2003 © TOSHIBA TEC 3 - 1 e-STUDIO3511/4511 COPY PROCESS