Lexmark X4650 Network Guide - Page 21
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REMOVE SOURCES OF INTERFERENCE Other types of radio frequencies can cause problems with the wireless signal on your network. These sources of interference can cause printing issues that seem to come and go. Some common sources of interference are: • Cordless phones • Microwave ovens • Refrigerators and other appliances • Bluetooth devices • Other wireless networks • Motors Turn off these potential sources of interference where possible. Avoid using microwaves and cordless phones when printing over your wireless network. If another wireless network is operating in the vicinity, change the wireless channel on the access point. Do not place your access point on a printer. Printers can also interfere with the wireless signal. ARRANGE THE NETWORK TO REDUCE SIGNAL ABSORPTION Even when the wireless signal is able to pass through an object, it is slightly weakened. If it passes through too many objects, it can be significantly weakened. All objects absorb part of the wireless signal when it passes through them, but certain types of objects absorb enough to cause communications problems. To avoid signal absorption, avoid placing the following items between your access point and your printer: • Stacks of paper or books • Multiple walls or floors • Crowds of people • Objects containing water, such as fish tanks • Plants Place your access point as high in the room as possible to avoid signal absorption. Notices Edition notice December 2007 The following paragraph does not apply to any country where such provisions are inconsistent with local law: LEXMARK INTERNATIONAL, INC., PROVIDES THIS PUBLICATION "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer of express or implied warranties in certain transactions; therefore, this statement may not apply to you. This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in later editions. Improvements or changes in the products or the programs described may be made at any time. References in this publication to products, programs, or services do not imply that the manufacturer intends to make these available in all countries in which it operates. Any reference to a product, program, or service is not intended to state or imply that only that product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any existing intellectual property right may be used instead. Evaluation and verification of operation in conjunction with other products, programs, or services, except those expressly designated by the manufacturer, are the user's responsibility. For Lexmark technical support, visit support.lexmark.com. For information on supplies and downloads, visit www.lexmark.com. If you don't have access to the Internet, you can contact Lexmark by mail: Lexmark International, Inc. Bldg 004-2/CSC 740 New Circle Road NW Lexington, KY 40550 USA © 2008 Lexmark International, Inc. All rights reserved. Trademarks Lexmark and Lexmark with diamond design are trademarks of Lexmark International, Inc., registered in the United States and/or other countries. All other trademarks are the property of their respective owners. 21