Dell 2145cn manual Troubleshooting, The printer does not, appear on the, scanners list

CONDITION	SUGGESTED SOLUTIONS
The printer does not	• Check if your printer is attached to your
appear on the	computer. Ensure that it is connected properly
scanners list.	via the USB port and is turned on.
	• Check if the scanner driver for your printer is
	installed in your system. Open Unified Driver
	configurator, switch to Scanners
	configuration, then press Drivers. Ensure
	that driver with a name corresponding to
	your printer's name is listed in the window.
	Check if the port is not busy. Since functional
	components of MFP (printer and scanner)
	share the same I/O interface (port), the
	situation of simultaneous access of different
	“consumer” application to the same port is
	possible. To avoid possible conflicts, only
	one of them at a time is allowed to gain
	control over the device. The other
	“consumer” will encounter “device busy”
	response. This can usually happen while
	starting scan procedure, and appropriate
	message box appears.
	• To identify the source of the problem, you
	should open ports configuration and select the
	port assigned to your scanner. port's symbol /
	dev/mfp0 corresponds to LP:0 designation
	displayed in the scanners’ options, /dev/mfp1
	relates to LP:1 and so on. USB ports start at /
	dev/mfp4, so scanner on USB:0 relates to /dev/
	mfp4 respectively and so forth sequentially. In
	the Selected port pane you can see if the port is
	occupied by some other application. If this is
	the case, you should wait for completion of
	the current job or should press Release port
	button, if you are sure that the present port's
	owner is not functioning properly.

CONDITION	SUGGESTED SOLUTIONS
The printer does not	• Check if a document is loaded into the printer.
scan.	• Check if your printer is connected to the
	computer. Ensure if it is connected properly if I/
	O error is reported while scanning.
	• Check if the port is not busy. Since functional
	components of MFP (printer and scanner)
	share the same I/O interface (port), the
	situation of simultaneous access of different
	“consumer” application to the same port is
	possible. To avoid possible conflicts, only one
	of them at a time is allowed to gain control over
	the device. The other “consumer” will
	encounter “device busy” response. This can
	usually happen while starting scan procedure,
	and appropriate message box will be displayed.
	To identify the source of the problem, you
	should open ports configuration and select the
	port assigned to your scanner. port’s symbol /
	dev/mfp0 corresponds to LP:0 designation
	displayed in the scanners’ options, /dev/mfp1
	relates to LP:1 and so on. USB ports start at /
	dev/mfp4, so scanner on USB:0 relates to /dev/
	mfp4 respectively and so forth sequentially. In
	the Selected port pane you can see if the port is
	occupied by some other application. If this is
	the case, you should wait for completion of the
	current job or should press Release port
	button, if you are sure that the present port’s
	owner is not functioning properly.

Refer to Linux User’s Guide that came with your computer for further information on Linux error messages.

Troubleshooting 81