Epson LX-810 Technical Manual page 47

2.2.1.1 TA Filter Unit
The filter board and the transformer are integrated into a single unit. This unit also
power switch and the inlet for the incolming AC cable.
The incoming AC power passes first through the over-current protection fuse (F 1 ) and the power switch,
and then into the filter circuit comprised of C 1, C2, C3, and L 1. This circuits removes
AC input line, and also serves to present noise generated within the printer from running through the
AC line.
The transformer steps down the incoming AC power into 26 VAC and 12 VAC outputs. To prevent
overheating, a temperature fuse is incorporated into the transformer.
Figure 2-12 illustrates the design of the! circuit.
AC INPUT
Power SW
FI - .
o
- L
—
—
—
—
Figure 2-12. Transformer Circuit
LI
C3
c l
2-11
incorporates the
CN1
red 26VAC
blue 12VAC
125V, 1.25A (120V Version)