![background image](http://html1.mh-extra.com/html/okidata/ml172-series/ml172-series_service-manual_3653028015.webp)
Page: 10
Service Guide ML172/ML182 Series
Chapter 2 Principles of Operation
2.1.1 Power Supply
The Power Supply consists of the power supply board and the transformer. The Power Supply Board,
which contains the ON/OFF Switch, Line Filter and related circuits, uses a 1 amp fuse for over-current
protection. This circuit board transforms the AC input voltage into 7.6 VAC, 24 VAC and 10 VAC for use
on the Control PCB. The Transformer contains a thermal fuse for protection against overheating. If the
thermal fuse opens, the transformer must be replaced.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)