Condition Suggested solutionsThe scanner doesnot work.Ensure that you place the document to be scannedface down from the document glass, or face up in theDADF.There may not be enough available memory to holdthe document you want to scan. Try the Prescan functionto see if that works. Try lowering the scan resolution rate.Check that the USB cable is connected properly.Ensure that the USB cable is not defective. Switchthe cable with a known good cable. If necessary, replacethe cable.Check that the scanner is configured correctly. Checkthe application you want to use to make certain that thescanner job is being sent to the correct port.The unit scans veryslowly.Check if the printer is printing received data. Scanthe document after the current job is completed.Graphics are scanned more slowly than text.Communication speed becomes slow in scan modebecause of the large amount of memory required toanalyze and reproduce the scanned image.Message appears onyour computer screen:"Device can'tbe set to the H/Wmode you want.""Port is beingused by anotherprogram.""Port isDisabled.""Scanner isbusy receiving orprinting data. Whenthe current job iscompleted, tryagain.""Invalidhandle.""Scanning hasfailed."There may be a copying or printing job in progress.When the current job is complete, try the job again.The selected port is currently being used. Restartyour computer and try again.The printer cable may be improperly connected orthe power may be off.The scanner driver is not installed or an operatingenvironment is not set up properly.Ensure that the port is properly connected and thepower is turned on. Then restart your computer.Check that the USB cable is properly connected.Global address problems