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ROUBLESHOOTING
8.20
Scanning Problems
Condition Suggested solutions
The scanner does not work. • Make sure that you place the document to be scanned
face down in the ADF.
• 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 or parallel cable is connected
properly.
• Make sure that the USB or parallel cable is not
defective. Switch the cable with a known good cable.
If necessary, replace the cable.
• If you are using a parallel cable, ensure that it is
compliant with the IEEE 1284 standard.
• Check that the scanner is configured correctly or the
application you want to use to make certain that the
scanner job is being sent to the correct port, for
example, LPT1.
The unit scans very slowly. • Check if the machine is printing received data. Scan
the document after the current job is completed.
• Graphics are scanned more slowly than text.
• Communication speed becomes slow in scan mode
because of the large amount of memory required to
analyze and reproduce the scanned image. Set your
computer to the ECP printer mode through BIOS
setting. It will help to increase the speed. For details
about how to set BIOS, refer to your computer
operating instructions.
Message appears on your
computer screen:
• “Device can't be set to the
H/W mode you want.”
• “Port is being used by
another program.”
• “Port is Disabled.”
• “Scanner is busy receiving
or printing data. When the
current job is completed,
try again.”
• “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. You must use a USB 2.0 compliant
cable or a parallel cable that supports IEEE 1284 bi-
directional communications.
• The scanner driver is not installed or an operating
environment is not set up properly.
• Ensure that port is properly connected and power is
on, and then restart your computer.
• Do not use the parallel and the USB cables at the
same time.