Xerox Phaser 3600

2-18 Phaser 3600 Printer Service Manual
Theory of Operation
Switching Mode Power Supply (SMPS)
The SMPS is mounted on the bottom of the printer and is the main power
source of the entire system. It converts the AC input line into two main output
channels: 3.3. volts DC and 24 Volts DC. The SMPS then provides these
output channels to various components throughout the system in a switching
mode as instructed by the Main Board.
The SMPS also drives the AC heater unit, which supplies controlled current
le
v
els to the Fuser assembly as an independent module.
CN3
CN4
CN2
CN1
MHV
FUSER
OPC
DEVE
SUPPLY
THV
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