Epson EPL-N1600 Option, Service Manual

Page: 52 / 210

EPSON EPL-N1600 Chapter 2 Operating Principles
Rev. A 53
ELECTRICAL MODULES
Fan IOT: Expels the air inside the printer and introduces
fresh air into the printer to prevent an excessive
rise of the inside temperature.
HPS: Has the Main Power Switch, Interlock Switch,
Sensor Registration, Sensor Pre-Registration,
Sensor No Paper, LVPS (Low Voltage Power
Supply) circuit, and HVPS (High Voltage Power
Supply) circuit on it. The HPS also has the
switching circuit to switch on and off AC power
to the Heater Lamp of the Fuser Unit.
Interlock Switch:
Opens the 24 VDC circuit from the LVPS to the
controller when the Cover Assembly Exit is
open.
LVPS:
Produces regulated low DC voltages (5V
supplied to logic circuits, 5V-LD supplied to the
Laser Diode, and 24V supplied to motors,
solenoids, and clutches) from the AC power.
HVPS:
Produces high AC and DC voltages used for
charge (BCR), development (Magnet Roll),
transfer (BTR), and detack (Detack Saw) in the
print process.
C258MAIN Board: This is a main control circuit of the EPL-N1600
and contains two major circuits: image
processing main control circuit and MCU
(Machine Control Unit) which directly controls all
printer operations responding to signals from the
main control circuit.