Page: 16Service Guide OL400Chapter 2 Principles of Operation2.2.04 Optional Font CardIn addition to the twenty-five resident fonts, an optional font IC card is available.The CD-N signal detects the option font card.Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA BusinessPartner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)