Print Data Flow; Data Flow - Epson AcuLaser C8500 Service Manual

EPSON AcuLaser C8500

2.2 Print Data Flow

2.2.1 Data Flow

Print data (electric signal) from the printer controller forms a print image
through the following flow:
Figure 2-19. Print Data Flow
Operating Principles
NOTE: Formation of secondary print image
A line of dot images is formed by scanning while laser radiation is
turned ON/OFF in accordance with electric signals (VIDEO signal:
Expresses image data according to high/low voltage level) from
the printer controller.
A single color image (secondary dot image) is completed by
scanning 1 screen of the image. To get a full color image, a
secondary dot image is formed for each of the 4 colors
respectively.
Resolution is determined as follows:
No. of dots in main scanning direction / inch
No. of dots in sub scanning direction / inch
Figure 2-20. Formation of Secondary Print Image
Revision C
2-14