Epson SEPG04002 2.2 Flow of Print Data

EPSON AcuLaser C1100 Revision B
OPERATING PRINCIPLES Flow of Print Data 86
2.2 Flow of Print Data
2.2.1 Data Flow
Print data (electric signals) from the Printer Controller follows the flow shown below
to become a print image.
Figure 2-17. Overview of Producing Print Image
<Reference> Formation of 2-D print image:
One line of the dot image is formed by turning the laser beam from the laser diode
ON and OFF in accordance with the electric signals (VIDEO signal: expresses the
image data by voltage levels) from the printer controller.
A single-color image (2-D dot image) is completed by performing the above
operation repeatedly over the entire surface of the image. To obtain a full color
image, formation of 2-D dot images is performed for each of the four colors.
Resolution is determined as follows:
•Main direction : dots/inch
•Sub direction : Lines/inch
Figure 2-18.Formation of 2-D Print Image
Leg_Sec06_033FA
Host (electric signal)
Printer controller (electric signal)
ROS ASSY (laser beam)
Electrostatic latent image on drum
(invisible image)
Toner image on drum (toner image)
Toner image on Belt (secondary transfer roller)
Toner image on paper
Print image on paper