Samsung SCX 4200 User Manual

							Troubleshooting
9.3
Tips for avoiding paper jams
By selecting the correct paper types, most paper jams can be 
avoided. When a paper jam occurs, follow the steps outlined in 
page 9.1. 
• Follow the procedures in page 2.3. Ensure that the 
adjustable guides are positioned correctly.
• Do not overload the paper input tray. Ensure that the paper 
is below the paper capacity mark on the inside wall of the 
paper input tray.
• Do not remove paper from the paper input tray while your 
machine is printing.
• Flex, fan, and straighten the paper before loading. 
• Do not use creased, damp, or highly curled paper.
• Do not mix paper types in the paper input tray.
• Use only recommended print materials. See page 3.2.
• Ensure that the recommended print side of print materials is 
facing down in the paper input tray and facing up in the 
manual feeder.Understanding the Status LED
The Status LED on the control panel shows the status of your 
machine. See the table below to know your machine’s status.
StatusDescription
Off • The machine is off-line.
• The machine is in Power Save mode. 
When data is received, or any button is 
pressed, it switches to on-line 
automatically.
Green On The machine is on-line and can be used.
Blinking • When the backlight slowly blinks, the 
machine is receiving data from the 
computer.
• When the backlight normally blinks, the 
machine is scanning the loaded 
document.
• When the backlight fast blinks, the 
machine is printing data. 
Red On • The toner cartridge is totally exhausted. 
Remove the old toner cartridge and 
install a new one. See page 8.4.
• A paper jam has occurred. To solve the 
problem, see page 9.1.
• The front cover is open. Close the front 
cover.
• There is no paper in the paper input 
tray. Load paper in the paper input tray.
• The machine has stopped due to a major 
error. Check the display message. See 
page 9.4 for details on the meaning of 
the error message.
Blinking • A minor error occurs and the machine is 
waiting an error to be cleared. Check the 
display message. When the problem is 
cleared, the machine resumes. 
• The toner cartridge is low. Order a new 
toner cartridge. You can temporarily 
improve print quality by redistributing 
the toner. See page 8.4.
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							Troubleshooting
9.4
Understanding display messages
Messages appear on the Smart Panel program window or the 
control panel display to indicate the machine’s status or errors. 
Refer to the tables below to understand the messages’ meaning 
and correct the problem if necessary. Messages and their 
meanings are listed in alphabetical order.
NOTE: When you call for service, it is very convenient to tell 
the service representative the display message.
DisplayMeaningSuggested solutions
Door Open
The front cover or 
rear cover is not 
securely latched.Close the cover until it locks 
into place.
Hsync ErrorA problem has 
occurred in the LSU 
(Laser Scanning 
Unit).Unplug the power cord and plug 
it back in. If the problem 
persists, please call for service.
Invalid 
CartridgeYou have used an 
unauthorized 
cartridge.You must use a Samsung 
approved cartridge.
No Cartridge• You have used 
an unauthorized 
cartridge.
• The toner 
cartridge you 
have installled is 
not for your 
machine.• You must use a Samsung 
approved cartridge.
• Install a Samsung genuine 
toner cartridge, designed for 
your machine.
[Jam 1] or [No 
Cartridge]The toner cartridge 
is not installed.Install the toner cartridge. See 
page 2.2.
Low Heat ErrorThere is a problem 
in the fuser unit.Unplug the power cord and plug 
it back in. If the problem 
persists, please call for service.
[LSU Error]A problem has 
occurred in the LSU 
(Laser Scanning 
Unit).Unplug the power cord and plug 
it back in. If the problem 
persists, please call for service.
[No Paper]
Add PaperThe paper in the 
paper input tray 
has run out.Load paper in the paper input 
tray. See page 2.3.
Open Heat ErrorThere is a problem 
in the fuser unit.Unplug the power cord and plug 
it back in. If the problem 
persists, please call for service.
[Over Heat]There is a problem 
in the fuser unit.Unplug the power cord and plug 
it back in. If the problem 
persists, please call for service.
Solving other problems
The following chart lists some conditions that may occur and 
the recommended solutions. Follow the suggested solutions 
until the problem is corrected. If the problem persists, please 
call for service.
Paper feeding problems
[Paper Jam 0]
Open/Close 
DoorPaper has jammed 
in the feeding area 
of the paper input 
tray.Clear the jam. See page 9.1.
[Paper Jam 1] 
Open/Close 
DoorPaper has jammed 
in the fuser area or 
in the manual 
feeder.Clear the jam. See page 9.2.
[Paper Jam 2] 
Check Inside
Paper has jammed 
in the paper exit 
area.Clear the jam. See page 9.2.
Power FailurePower has turned 
off then on and the 
machine’s memory 
has not been back 
up.The job which you were trying 
to do before the power failure 
must be completely re-done.
Scanner ErrorThere is a problem 
in the scanner unit.Unplug the power cord and plug 
it back in. If the problem 
persists, please call for service.
Toner EmptyThe toner cartridge 
has run out. Replace the toner cartridge with 
a new one. See  page 8.4.
[Toner Empty] 
Replace TonerThe toner cartridge 
has run out. The 
printer stops 
printing.Replace the toner cartridge with 
a new one. See  page 8.4.
Toner LowThe toner is almost 
empty.Take out the toner cartridge 
and gently shake it. By doing 
this, you can temporarily 
reestablish printing operations.
DisplayMeaningSuggested solutions
ConditionSuggested solutions
Paper is jammed 
during printing.Clear the paper jam. See page 9.1.
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							Troubleshooting
9.5
Paper sticks 
together.• Ensure that there is not too much paper in the 
paper input tray. The paper input tray can hold up 
to 250 sheets of paper, depending on the thickness 
of your paper.
• Make sure that you are using the correct type of 
paper. See page 3.2.
• Remove paper from the paper input tray and flex or 
fan the paper.
• Humid conditions may cause some paper to stick 
together.
Multiple sheets of 
paper do not feed.• Different types of paper may be stacked in the 
paper input tray. Load paper of only one type, size, 
and weight.
• If multiple sheets have caused a paper jam, clear 
the paper jam. See page 9.1.
Paper does not feed 
into the machine.• Remove any obstructions inside the machine.
• Paper has not been loaded correctly. Remove paper 
from the paper input tray and reload it correctly.
• There is too much paper in the paper input tray. 
Remove excess paper from the paper input tray.
• The paper is too thick. Use only paper that meets 
the specifications required by the machine. See 
page 3.2.
The paper keeps 
jamming.• There is too much paper in the paper input tray. 
Remove excess paper from the tray. If you are 
printing on special materials, use the manual 
feeder.
• An incorrect type of paper is being used. Use only 
paper that meets the specifications required by the 
machine. See page 3.2.
• There may be debris inside the machine. Open the 
front cover and remove the debris.
Transparencies 
stick together in the 
paper exit.Use only transparencies specifically designed for laser 
printers. Remove each transparency as it exits from 
the machine.
Envelopes skew or 
fail to feed 
correctly.Ensure that the paper guides are against both sides of 
the envelopes.
ConditionSuggested solutionsPrinting problems
ConditionPossible causeSuggested solutions
The 
machine 
does not 
print.The machine is 
not receiving 
power.Check the power cord connections. Check 
the power switch and the power source.
The machine is 
not selected as 
the default 
printer.Select 
Samsung SCX-4200 Series as 
your default printer in your Windows.
Check the machine for the following:
• The front cover is not closed. - Close the front cover.
• Paper is jammed. - Clear the paper jam. See page 9.1.
• No paper is loaded. - Load paper. See page 2.3.
• The toner cartridge is not installed. - Install the toner 
cartridge. See page 2.2.
If a printer system error occurs, contact your service 
representative.
The connection 
cable between 
the computer 
and the machine 
is not connected 
properly.Disconnect the printer cable and 
reconnect it.
The connection 
cable between 
the computer 
and the machine 
is defective.If possible, attach the cable to another 
computer that is working properly and 
print a job. You can also try using a 
different printer cable.
The port setting 
is incorrect.Check the Windows printer setting to 
make sure that the print job is sent to the 
correct port, for example, LPT1. If the 
computer has more than one port, make 
sure that the machine is attached to the 
correct one.
The machine 
may be 
configured 
incorrectly. Check the printer properties to ensure 
that all of the print settings are correct. 
The printer 
driver may be 
incorrectly 
installed.Repair the printer software. See the 
Software Section.
The machine is 
malfunctioning.Check the display message on the control 
panel to see if the machine is indicating a 
system error.
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							Troubleshooting
9.6
The 
machine 
selects 
print 
materials 
from the 
wrong 
paper 
source.The paper 
source selection 
in the printer 
properties may 
be incorrect.For many software applications, the paper 
source selection is found under the 
Paper 
tab within the printer properties. Select 
the correct paper source. See the 
Software Section.
A print job 
is 
extremely 
slow.The job may be 
very complex.Reduce the complexity of the page or try 
adjusting the print quality settings.
The maximum print speed of your 
machine is 19 PPM for Letter-sized paper 
and 18 PPM for A4-sized paper.
Half the 
page is 
blank.The page 
orientation 
setting may be 
incorrect.Change the page orientation in your 
application. See the 
Software Section.
The paper size 
and the paper 
size settings do 
not match.Ensure that the paper size in the printer 
driver settings matches the paper in the 
paper input tray.
Or, ensure that the paper size in the 
printer driver settings matches the paper 
selection in the software application 
settings you use.
The 
machine 
prints, but 
the text is 
wrong, 
garbled, or 
incomplete.The printer 
cable is loose or 
defective.Disconnect the printer cable and 
reconnect. Try a print job that you have 
already printed successfully. If possible, 
attach the cable and the machine to 
another computer and try a print job that 
you know works. Finally, try a new printer 
cable.
The wrong 
printer driver 
was selected.Check the application’s printer selection 
menu to ensure that your machine is 
selected.
The software 
application is 
malfunctioning.Try printing a job from another 
application.
The operating 
system is 
malfunctioning.Exit Windows and reboot the computer. 
Turn the machine off and then back on 
again.
ConditionPossible causeSuggested solutions
Pages 
print, but 
are blank.The toner 
cartridge is 
defective or out 
of toner.Redistribute the toner, if necessary. See 
page 8.3.
If necessary, replace the toner cartridge.
The file may 
have blank 
pages.Check the file to ensure that it does not 
contain blank pages.
Some parts, 
such as the 
controller or the 
board, may be 
defective.Contact a service representative.
The 
illustrations 
print 
incorrectly 
in Adobe 
Illustrator.The setting in 
the software 
application is 
wrong.Select 
Download as Bit Image in the 
TrueType Options window of the 
Graphic properties and print the document 
again.
An error 
occurs 
repeatedly 
when you 
are printing 
with the 
USB 
connection.When the USB 
mode is set to 
Fast, some PC 
users may 
experience poor 
USB 
communication.Change the USB mode to 
Slow. To do so, 
follow these step:
1Press Menu until Machine Setup 
appears on the top line of the 
display.
2Press the scroll button (  or  ) until 
USB mode appears and press Ok.
3Press the scroll button (  or  ) until 
Slow appears and press Ok.
4Press Stop/Clear to return to 
standby mode.
ConditionPossible causeSuggested solutions
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							Troubleshooting
9.7
Printing quality problems
If the inside of the machine is dirty or paper has been loaded 
improperly, you may notice a reduction in print quality. See the 
table below to clear the problem. 
ConditionSuggested solutions
Light or faded 
print
If a vertical white streak or faded area appears on 
the page:
• The toner supply is low. You may be able to 
temporarily extend the toner cartridge life. See 
page 8.3. If this does not improve the print 
quality, install a new toner cartridge.
• The paper may not meet paper specifications; for 
example, the paper is too moist or too rough. See 
page 3.2.
• If the entire page is light, the print resolution 
setting is too low or the toner save mode is on. 
Adjust the print resolution and turn the toner save 
mode off. See the 
Software Section and 
page 2.6, respectively.
• A combination of faded or smeared defects may 
indicate that the toner cartridge needs cleaning. 
See page 8.2.
• The surface of the LSU part inside the machine 
may be dirty. Clean the LSU. See page 8.2.
Toner specks• The paper may not meet specifications; for 
example, the paper is too moist or too rough. See 
page 3.2.
• The transfer roller may be dirty. Clean the inside 
of your machine. See page 8.1.
• The paper path may need cleaning. See page 8.2.
DropoutsIf faded areas, generally rounded, occur randomly 
on the page:
• A single sheet of paper may be defective. Try 
reprinting the job.
• The moisture content of the paper is uneven or 
the paper has moist spots on its surface. Try a 
different brand of paper. See 
page 3.2.
• The paper lot is bad. The manufacturing 
processes can cause some areas to reject toner. 
Try a different kind or brand of paper.
• If these steps do not correct the problem, contact 
a service representative.
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Vertical linesIf black vertical streaks appear on the page:
• The drum inside the toner cartridge has probably 
been scratched. Remove the toner cartridge and 
install a new one. See page 8.4.
If white vertical streaks appear on the page:
• The surface of the LSU part inside the machine 
may be dirty. Clean the LSU (see page 8.2).
Gray backgroundIf the amount of background shading becomes 
unacceptable:
• Change to a lighter weight paper. See 
page 3.2.
• Check the machine’s environment: very dry (low 
humidity) or high humidity (higher than 80% RH) 
conditions can increase the amount of background 
shading.
• Remove the old toner cartridge and install a new 
one. See page 8.4.
Toner smear• Clean the inside of the machine. See page 8.1.
• Check the paper type and quality. See page 3.2.
• Remove the toner cartridge and install a new one. 
See page 8.4.
Vertical repetitive 
defectsIf marks repeatedly appear on the printed side of 
the page at even intervals:
• The toner cartridge may be damaged. If a 
repetitive mark occurs on the page, print a 
cleaning sheet several times to clean the toner 
cartridge; see page 8.2. After the printout, if you 
still have the same problems, remove the toner 
cartridge and install a new one. See page 8.4.
• Parts of the machine may have toner on them. If 
the defects occur on the back of the page, the 
problem will likely correct itself after a few more 
pages.
• The fusing assembly may be damaged. Contact a 
service representative.
• If you use inferior quality paper; see page 8.2.
ConditionSuggested solutions
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							Troubleshooting
9.8
Background 
scatterBackground scatter results from bits of toner 
randomly distributed on the printed page. 
• The paper may be too damp. Try printing with a 
different batch of paper. Do not open packages of 
paper until necessary so that the paper does not 
absorb too much moisture.
• If background scatter occurs on an envelope, 
change the printing layout to avoid printing over 
areas that have overlapping seams on the reverse 
side. Printing on seams can cause problems.
• If background scatter covers the entire surface 
area of a printed page, adjust the print resolution 
through your software application or the printer 
properties.
Misformed 
characters• If characters are improperly formed and 
producing hollow images, the paper stock may be 
too slick. Try a different paper. See 
page 3.2.
• If characters are improperly formed and 
producing a wavy effect, the scanner unit may 
need service. For service, contact a service 
representative.
Page skew• Ensure that the paper is loaded properly.
• Check the paper type and quality. See 
page 3.2.
• Ensure that the paper or other material is loaded 
correctly and the guides are not too tight or too 
loose against the paper stack.
Curl or wave• Ensure that the paper is loaded properly.
• Check the paper type and quality. Both high 
temperature and humidity can cause paper curl. 
See 
page 3.2.
• Turn over the stack of paper in the tray. Also try 
rotating the paper 180° in the tray.
• Try printing to the rear cover.
ConditionSuggested solutions
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Wrinkles or 
creases• Ensure that the paper is loaded properly.
• Check the paper type and quality. See 
page 3.2.
• Turn over the stack of paper in the tray. Also try 
rotating the paper 180° in the tray.
• Try printing to the rear cover.
Back of printouts 
are dirtyCheck for leaking toner. Clean the inside of the 
machine. See page 8.1.
Black pages• The toner cartridge may not be installed properly. 
Remove the toner cartridge and reinsert it.
• The toner cartridge may be defective and need 
replacing. Remove the toner cartridge and install 
a new one. See page 8.4.
• The machine may require repair. Contact a 
service representative.
Loose toner• Clean the inside of the machine. See page 8.1.
• Check the paper type and quality. See 
page 3.2.
• Remove the toner cartridge and install a new one. 
See page 8.4.
• If the problem persists, the machine may require 
repair. Contact a service representative.
Character VoidsCharacter voids are white areas within parts of 
characters that should be solid black:
• If you are using transparencies, try another type 
of transparency. Because of the composition of 
transparencies, some character voids are normal. 
• You may be printing on the wrong surface of the 
paper. Remove the paper and turn it around. 
• The paper may not meet paper specifications. See 
page 3.2.
ConditionSuggested solutions
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							Troubleshooting
9.9
Copying problems
Horizontal stripesIf horizontally aligned black streaks or smears 
appear:
• The toner cartridge may be installed improperly. 
Remove the toner cartridge and reinsert it.
• The toner cartridge may be defective. Remove the 
toner cartridge and install a new one. See 
page 8.4.
• If the problem persists, the machine may require 
repair. Contact a service representative.
CurlIf the printed paper is curled or paper does not feed 
into the machine:
• Turn over the stack of paper in the tray. Also try 
rotating the paper 180° in the tray. 
• Try printing to the rear cover.
ConditionSuggested solutions
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ConditionSuggested solutions
Copies are too light or 
too dark.Use Darkness to darken or lighten the background 
of the copies.
Smears, lines, marks, 
or spots appears on 
copies.• If defects are on the original, use 
Darkness to 
lighten the background of your copies.
• If no defects are on the original, clean the scan 
unit. See page 8.2.
Copy image is 
skewed.• Ensure that the original is face down on the 
document glass.
• Check that the paper is loaded correctly.
Blank copies print 
out.Ensure that the original is face down on the 
document glass.
Image rubs off the 
copy easily.• Replace the paper in the paper input tray with 
paper from a new package.
• In high humidity areas, do not leave paper in the 
machine for extended periods of time.
Frequent copy paper 
jams occur.• Fan the stack of paper, then turn it over in the 
paper input tray. Replace the paper in the paper 
input tray with a fresh supply. Check/adjust the 
paper guides, if necessary.
• Ensure that the paper is the proper paper weight 
75 g/m
2 (20 lb bond) paper is recommended.
• Check for copy paper or pieces of copy paper 
remaining in the machine after a paper jam has 
been cleared.
Scanning problems
Toner cartridge 
produces fewer copies 
than expected before 
running out of toner.• Your originals may contain pictures, solids, or 
heavy lines. For example, your originals may be 
forms, newsletters, books, or other documents 
that use more toner. 
• The machine may be turned on and off frequently. 
• The document cover may be left open while 
copies are being made.
ConditionSuggested solutions
ConditionSuggested solutions
The scanner does not 
work.• Make sure that you place the document to be 
scanned face down on the document glass.
• 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.
• Make sure 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 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. If 
so, scan the document after the received data 
has been printed.
• Graphics are scanned more slowly than text.
• Communication speed slows 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.
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							Troubleshooting
9.10
Common windows problems
NOTE: Refer to Microsoft Windows User’s Guide that came 
with your computer for further information on Windows error 
messages.
Message appears on 
your computer 
screen:
• “Device cant 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 that job is complete, try your 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 the 
operating environment is not set up properly.
• Ensure that the machine is properly connected 
and the power is on, Then restart your computer.
• The USB cable may be improperly connected or 
the power may be off.
ConditionSuggested solutions
ConditionSuggested solutions
“File in Use” message 
appears during 
installation.Exit all software applications. Remove all software 
from the StartUp Group, then restart Windows. 
Reinstall the printer driver.
“Error Writing to 
LPTx” message 
appears.• Ensure that the cables are connected correctly, 
the machine is on.
• If bi-directional communication is not turned on 
in the driver, it will also cause this message.
“General Protection 
Fault ”, “Exception 
OE”, “Spool32”, or 
“Illegal Operation” 
messages appear.Close all other applications, reboot Windows and try 
printing again.
“Fail To Print”, “A 
printer timeout error 
occurred.” messages 
appear.These messages may appear during printing. Just 
keep waiting until the machine finishes printing. If 
the message appears in standby mode or after 
printing has been completed, check the connection 
and/or whether an error has occurred.
Common Linux Problems
ConditionSuggested solutions
The machine doesn’t 
print.• Check if the printer driver is installed in your 
system. Open MFP configurator and switch to the 
Printers tab in Printers configuration window to 
look at the list of available printers. Make sure that 
your machine is displayed on the list. If not, 
please, invoke Add new printer wizard to set up 
your device.
• Check if the printer is started. Open Printers 
configuration and select your machine on the 
printers list. Look at the description in the Selected 
printer pane. If its status contains “(stopped)” 
string, please, press the 
Start button. After that 
normal operation of the printer should be restored. 
The “stopped” status might be activated when 
some problems in printing occurred. For instance, 
this could be an attempt to print document when 
MFP port is claimed by a scanning application.
• Check if the MFP port is not busy. Since functional 
components of MFP (printer and scanner) share the 
same I/O interface (MFP port), the situation of 
simultaneous access of different “consumer” 
application to the same MFP 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. You should open MFP ports configuration 
and select the port assigned to your printer. 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 owner is not functioning 
properly.
• Check if your application has special print option 
such as “-oraw”. If “-oraw” is specified in the 
command line parameter then remove it to print 
properly. For Gimp front-end, select “print” -> 
“Setup printer” and edit command line parameter 
in the command item.
The machine does 
not appear on the 
scanners list.• Check if your machine is attached to your 
computer. Make sure that it is connected properly 
via the 
USB port and is turned on.
• Check if the scanner driver for your machine is 
installed in your system. Open MFP Configurator, 
switch to Scanners configuration, then press 
Drivers. Make sure that driver with a name 
corresponding to your machines name is listed in 
the window.
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							Troubleshooting
9.11
The machine does 
not appear on the 
scanners list 
(continued).• Check if the MFP port is not busy. Since functional 
components of MFP (printer and scanner) share the 
same I/O interface (MFP port), the situation of 
simultaneous access of different “consumer” 
application to the same MFP 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 MFP ports configuration and select the port 
assigned to your scanner. MFP ports 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 ports owner is not 
functioning properly.
The machine doesn’t 
scan.• Check if a document is loaded into the machine.
• Check if your machine is connected to the 
computer. Make sure if it is connected properly if I/
O error is reported while scanning.
• Check if MFP port is not busy. Since functional 
components of MFP (printer and scanner) share the 
same I/O interface (MFP port), the situation of 
simultaneous access of different “consumer” 
application to the same MFP 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 MFP ports configuration and select the port 
assigned to your scanner. MFP 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
.
ConditionSuggested solutions
I can’t print when I 
installed both Linux 
Print Package (LPP) 
and MFP driver on 
the same machine 
simultaneously.• Since both Linux Printer Package and MFP driver 
make a symbolic link to “lpr” printing command, 
which is commonly used on Unix clones, it is not 
recommended to use both package on the same 
machine. 
• If you still want to use both packages 
simultaneously, please install the LPP first. 
• If you want to uninstall only one of them, please 
uninstall both packages and install that one you 
want to use again. 
• If you don’t want to uninstall MFP driver and install 
it again, you may make the necessary symbolic link 
yourself. Please, log in as root user and invoke the 
following command:
 ln -sf /usr/local/bin/samsung/slpr /usr/bin/lpr
Can’t scan via Gimp 
Front-end.• Check if Gimp Front-end has “Xsane:Device 
dialog.” on the “Acquire” menu. If not, you should 
install Xsane plug-in for Gimp on the your 
computer. You can find Xsane plug-in package for 
Gimp on Linux distribution CD or Gimp home page. 
For the detail information, refer to the Help for 
Linux distribution CD or Gimp Front-end 
application. 
If you wish to use other kind of scan application, 
refer to the Help for application.
I encounter error 
“Unable to open MFP 
port device file!” 
when printing a 
document.Please avoid changing print job parameters (via SLPR 
utility, for example) while a print job is in progress. 
Known versions of CUPS server break the print job 
whenever print options are changed and then try to 
restart the job from the beginning. Since Linux MFP 
driver locks MFP port while printing, the abrupt 
termination of the driver keeps the port locked and 
therefore unavailable for subsequent print jobs. If 
this situation occurred, please, try to release the MFP 
port. 
ConditionSuggested solutions
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							Troubleshooting
9.12
Common macintosh problems
Problems in printer setup utility
ConditionSuggested solutions
There is described 
driver not 
installed at Product 
List Window after 
you click Add and 
Select USB.• Software is not installed correctly. Reinstall the 
software. See 
Software Section.
• Make sure that you are using a high-quality cable.
Your product not 
listed at Product 
List Window after 
you click Add and 
Select USB.• Make sure that the cables are connected correctly 
and the machine is turned on. 
• Check if “Ready” appears on the display of the 
control panel. If not, clear the problem depending 
on the error message; see “Understanding display 
messages” on page 9.4.
• Make sure that the correct printer driver has been 
selected at Product List Window after you click Add 
and Select USB.
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