293Scanning ProblemsFewer copies from the tonercartridge than expected printsout.• Your originals may contain pictures, solids or heavy lines. For example, your originalsmay be forms, newsletters, books or other documents that use more toner.• The document cover may be left open while copies are being made.Condition Suggested solutionsCondition Suggested solutionsThe scanner does not work. • Ensure that you place the document to be scanned face down from the documentglass, or face up in the DADF.• There may not be enough available memory to hold the document you want to scan.Try the Prescan function to 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. Switch the cable with a known good cable.If necessary, replace the cable.• Check that the scanner is configured correctly. Check the application you want to useto make certain that the scanner job is being sent to the correct port.The unit scans very slowly. • Check if the printer is printing received data. Scan the document after the current jobis completed.• Graphics are scanned more slowly than text.• Communication speed becomes slow in scan mode because of the large amount ofmemory required to analyze and reproduce the scanned image.Message appears on yourcomputer screen:• “Device can't be set to theH/W mode you want.”• “Port is being used by anotherprogram.”• “Port is Disabled.”• “Scanner is busy receiving orprinting data. When thecurrent job is completed, tryagain.”• “Invalid handle.”• “Scanning has failed.”• 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. Restart your computer and try again.• The printer cable may be improperly connected or the power may be off.• The scanner driver is not installed or an operating environment is not set up properly.• Ensure that the port is properly connected and the power is turned on. Then restartyour computer.• Check that the USB cable is properly connected.
