Figure 1-21. Seips Board Unit; Figure 1-22. Sanpse Board Unit - Epson SQ-B50/2550 Technical Manual

REV.-A
1.5.2 SEIPS/SANPSE
Board Unit
The SEIPS and SANPSE board units are the power supply units designed for 120 V and 220/240 V
operation, respectively.
The SEIPS/SANPSE board unit is a power supply which supplies DC voltages to the
mechanisms and control/drive circuits, and is composed of an AC cable, switching board, and regulator
circuit.
By employing a switching regulator (DC to DC converter), circuits in the SEIPS/SANPSE board were
made very compact but which work very efficiently. The 494 is employed as a controller in the regulator
circuit.
494
Figure 1-21. SEIPS Board Unit
Figure 1-22. SANPSE Board Unit
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