38Copyright 2007 Unitech Electronics Co., Ltd. All rights reserved. Unitech is a registered trademark of Unitech Electronics Co., Ltd.Problem: Nothing happens when I follow the operating instructions.Possible Cause: Possible Solution:Interface cables are loose Check for loose cable connections. Ifproblem persits, call technical supportfor assistance.Problem: My computer gets a keyboard error while booting up.Possible Cause: Possible Solution:The scanner is damaged or is no longerfunctioning.Disconnect the scanner from yourcomputer and use your keyboard only.Reboot your computer. If your computerstill gets a keyboard error, then theproblem may not be the scanner. Calltechnical support for assistance.Problem: Light comes on, but the scanner doesn’t read the bar code.Possible Cause: Possible Solution:Interface cables are loose Check for loose cable connectionsScanner is not programmed for thecorrect bar code type.Be sure to select the correct interfaceselection and ensure that the scanner isprogrammed to read the type of barcodeyou are scanning.Barcode symbol is unreadable. Check the symbol to make sure it is notde-faced. Try scanning test symbols ofthe same barcode type.Distance between scanner and barcodeis incorrect.Move the scanner closer or further fromthe barcode.TroubleshootingChapter 6