Samsung SF-755P manual Scanning Problems

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. Check
	scan setting in the SmarThru Configuration 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 user’s
	guide.
Message appears on your	• There may be a copying or printing job in progress.
computer screen:	When the current job is complete, try the job again.
• “Device can't be set to the	• The selected port is currently being used. Restart your
H/W mode you want.”	computer and try again.
• “Port is being used by	• The printer cable may be improperly connected or the
another program.”	power may be off. You must use a USB 2.0 compliant
• “Port is Disabled.”	cable or a parallel cable that supports IEEE-1284 bi-
	directional communications.
• “Scanner is busy receiving
	• The scanner driver is not installed or an operating
or printing data. When the
	environment is not set up properly.
current job is completed,
	• Ensure that port is properly connected and power is	9
try again.”
• “Invalid handle.”	on, and then restart your computer.
	• Do not use the parallel and the USB cables at the
• “Scanning has failed.”
	same time.

TROUBLESHOOTING 9.21