Epson TM-U200 Series Technical Manual

Rev. A Mechanism Configuration and Operating Principles 2-17
TM-U200 Series (Type A/AM)Technical Manual
Confidential
Principles of Operation
Power Supply Circuitry
The power supply circuit is compact, uses a switching method, and is attached to the main
circuit board. The following sections describe printer power supply circuitry. The following
table shows power supply voltages and their usages.
Filter circuit
The +24 V (24 to 30 V) DC power is input from CN1 through the filter circuit, which reduces
outside noise and keeps internally generated noise from flowing through the +24 V power line.
+24 VDC circuit
The +24 V power from the filter circuit is input to printer power and the +5 V regulator circuit.
Printer power and drawer drive power are the converted +24 ± 1 V that is regulated by series of
regulators (U2 to U4).
Power supply voltage usage
Voltage Usage
+5 V Logic circuitInterface circuit board
Operation panel circuitVarious detector circuits
+24 V Printer:
Carriage motorPaper feed motor
Print headAuto-cutter
Drawer kick-out drive

Epson TM-U200 Series Specifications

General

Brand	Epson
Model	TM-U200 Series
Category	Printer
Language	English