Service manual

EPSON EPL-5800 Revision B
Operating Principles Operating Principles of Mechanism 51
2.1.4.1 Printable area
!
The main control board sends the VIDEO signal, which corresponds to the paper
size, to the engine (controller).
!
The main control board determines the printing start position by TOD signal (sub
scanning direction) and the HSYNC signal sent by the engine (controller).
!
The print head starts laser exposure when it receives the VIDEO signal.
Figure 2-7. Printable Area
Printable Area
/VIDEO
/HSYNC
/TOD
4mm
4mm
/VIDEO