EPSON AcuLaser CX11/CX11F Revision B
OPERATING PRINCIPLES Printer Section Operating Principle 84
2.2 Printer Section Operating Principle
This section describes printer functions and operating principles of AcuLaser CX11/
CX11F.
2.2.1 Print Process
2.2.1.1 Print Process Overview
This printer is a "full color laser printer" that uses the principle of electrophotographic
recording. The printer contains a drum that forms toner images by four colors of toner
"Yellow, Magenta, Cyan and Black (simply called YMCK from here on)." The toner
image of each color is formed on the drum, and the toner images formed on the drum is
transferred to the Belt (secondary transfer roller). Full color printing is performed by
overlaying each of the colors on the belt.
The major steps of the print process are described below.
(1) Charging : The drum surface is charged.
(2) Exposure : Image areas are exposed on the drum by a laser beam.
(3) Developing : Image areas on the drum are developed with toner.
(4) Primary transfer : The toner image on the drum is transferred to the Belt.
(5) Cleaning : The drum is cleaned.
(6) Repeat : In the full color mode, steps (1) to (5) are repeated for
each toner.
(7) Secondary transfer : The toner image on the Belt is transferred to the
paper.
(8) Discharging : The electrical charge of the paper is removed.
(9) Cleaning : The Belt is cleaned.
(10) Fusing : Toner on the paper is fixed with heat and pressure.
Figure 2-4. Print Process Overview
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