The Infrared Wireless ExpertACT-IR4002USUser’s Manual© Copyright 2002-2010 ACTiSYS Corp. Page 26 of 30 Apr 21, 2010V.1.0.0ACTiSYS Confidential Information14 TROUBLE SHOOTINGFor help on general and miscellaneous problems you may be experiencing with your printing, refer to thefollowing pages for possible solutions. Look up your problem and try the solution.Symptom Problem SolutionCan not establish link(General)1. The two IR devices arenot aligned properly.2. Distance is too near orfar.3. Device is inactivated4. BIOS setting incorrect5. Installation is not correct.1. Properly align themagain2. Move one device to aproper distance.3. Enable the device by IRmonitor.4. Correct the BIOSSetting.5. Refer to un-installationguide to remove thedevice, then installagain.File Transfer betweenIR-equipped PDA andACT-IR device-attachedhost computer stops beforefinishing up and an errormessage appears.The infraredcommunication isinterfered. For example,something blocks out theinfrared beam or the burstof string light source, etc.Check to find out thesource of interference andeliminate it before tryingagain.The device work wellbefore. But after I unplug itthen plug, it does not workagain.Improper unplug and plugprocedureBefore you unplug it, youshould disable the device.And enable the device afteryou plug it into yourcomputer