Samsung SCX 4623FN User Manual

							Troubleshooting_ 91
14 .troubleshooting
This chapter gives helpful information for  what to do if you encounter an error.
This chapter includes:
•Redistributing toner
• Clearing original document jams
• Tips for avoiding paper curls
• Tips for avoiding paper jams •
Clearing paper jams
• Understanding display messages
• Solving other problems
  
REDISTRIBUTING TONER
When the toner cartridge is near the end of its life:
•Whi
te streaks or light printing occurs. 
•Pr
epare new cartridge  appears on the display.
• The
  Status LED blinks red. 
If this happens, you can temporarily improve print quality by redistributing 
the
  remaining toner in the cartridge. In some cases, white streaks or light 
printing will still occur even after you have redistributed the toner.
1. O
pen the front door.
2.Pul
l the toner cartridge out.
3.Thoroughly roll the cartridge five or six times to distribute the toner 
evenly inside the cartridge.
 If toner gets on your clothing, wipe it off with a dry cloth and wash 
clothing in cold water. Hot water sets toner into fabric.
 
Do not touch the green underside of the toner cartridge. Use the 
handle on the cartridge to avoid touching this area. 
4. H
old the toner cartridge by the handle and slowly insert the cartridge into 
the opening in the machine.  Tabs on the sides of the cartridge and corresponding grooves within the 
m

achine will guide the cartridge into the correct position until it locks into 
place completely.
5. Close the front door. Ensure that the cover is securely closed. 
CLEARING ORIGINAL DOCUMENT JAMS
When an original jams while passing through the document feeder, a 
warning message appears on the display screen.
 
To avoid tearing the document, remove the jammed document slowly 
and gently.
 To prevent document jams, use the scanner glass for thick, thin, or 
mixed paper-type originals.
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							Troubleshooting_ 92
1.Remove any remaining pages from the document feeder.
2. O
pen the document feeder cover.
3.Gently remove the jammed paper from the document feeder.
 If you see no paper in this area, go to step 5.
4. C
lose the document feeder cover. Reload the pages you removed, if 
any, in the document feeder.
5.Open the scanner lid.
6. Sei
ze the misfeed paper, and remove the paper from the feed area by 
carefully pulling it to the right using both hands.
7.Close the scanner lid. Load the removed pages back into the document 
feeder.
TIPS FOR AVOIDING PAPER CURLS
1.Open the rear door.
2. Pu
ll down the pressure lever on each side.
 Keep the rear cover opened during printing. 
Only use when the printout has more than 20 mm curl. 
TIPS FOR AVOIDING PAPER JAMS
By selecting the correct media types, most paper jams can be avoided. 
When a paper jam occurs, refer to the next guidelines. 
•E
nsure that the adjustable guides are positioned correctly (See  Loading 
paper in the tray on page  47 ).
• D
o not overload the tray. Ensure that the paper level is below the paper 
capacity mark on the inside of the tray.
• Do
 not remove paper from the tray while your machine is printing.
•F
lex, fan, and straighten paper before loading. 
•D
o not use creased, damp, or highly curled paper.
1scanner lid
1Pressure lever
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							Troubleshooting_ 93
•Do not mix paper types in a tray.
• U
se only recommended print media (See Setting the paper size and 
type on page  50 ).
• Ens
ure that the recommended side of the print media is facing down in 
the tray, or facing up in the manual tray.
CLEARING PAPER JAMS
When a paper jam occurs, a warning message appears on the display. 
To resume printing after clearing paper jams, you must open and close the 
front door.
 
To avoid tearing the paper, pull the jammed paper out slowly and 
gently. Follow the instructions in the following sections to clear the 
jam. 
In tray 1
 Click this link to open an animation about clearing a jam.
1. O
pen and close the front door. The jammed paper is automatically 
ejected from the machine.
If the paper does not exit, go to the next step.
2. Pul
l out tray  1 .
3. Remove the jammed paper by gently pulling it straight out.
If the paper does not move when you pull, or if you do not see the paper 
in this area, check the fuser area around the toner cartridge (See  Inside 
the machine on page  93).
4. Ins
ert tray  1 back into the machine until it snaps into place. Printing 
a
utomatically resumes.
In the manual tray
 Click this link to open an animation about clearing a jam.
1. I
f the paper is not feeding properly, pull the paper out of the machine.
2.Open and close the front door to resume printing.
Inside the machine
 Click this link to open an animation about clearing a jam.
 The fuser area is hot. Take care when removing paper from the 
machine.
1. O
pen the front door and pull the toner cartridge out, lightly pushing it 
down.
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							Troubleshooting_ 94
2.Remove the jammed paper by gently pulling it straight out.
3.Replace the toner cartridge and close the front door. Printing 
automatically resumes.
In exit area
 Click this link to open an animation about clearing a jam.
1. O
pen and close the front door. The jammed paper is automatically 
ejected from the machine.
If you do not see the jammed paper, go to next step.
2. G
ently pull the paper out of the output tray.
If you do not see the jammed paper or if there is any resistance when 
you pull, stop and go to the next step.
3. O
pen the rear door.
4.Pul
l the pressure levers down and remove the paper. 
If you do not see the jammed paper, go to next step.
5. Pull the fuser cover levers down and remove the paper. 
Return the fuser cover levers to their original position.
 The fuser area is hot. Take care when removing paper from the 
machine.
6. Re
turn the pressure levers to their original position.
7.C
lose the rear door.
8.Op
en and close front door, printing automatically resumes. 
1Pressure lever
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							Troubleshooting_ 95
UNDERSTANDING DISPLAY MESSAGES
Messages appear on the control panel display to indicate the machine’s 
status or errors. Refer to the tables below to understand the messages’ and 
their meaning, and correct the problem, if necessary.
Checking display messages
 • If a message is not in the table, reboot the power and try the 
printing job again. If the problem persists, call for service.
• When you call for service, provide the service representative with 
the contents of display message.
• Some messages may not appear in the display depending on the 
options or models.
• [error number] indicates the error number. 
• [tray type] indicates the tray number. 
• [media type] indicates the media type.
• [media size] indicates the media size.
• [color] indicates the color of toner or imaging unit.
MESSAGEMEANINGSUGGESTED 
SOLUTIONS
[COMM. Error]The machine has a 
communication 
problem.Ask the sender to try 
again.
[Incompatible]The machine has 
received a fax from 
which is registered as 
a junk fax.The received fax data will 
be deleted. Reconfirm 
junk fax setup. See page 
50
[Line Busy]The receiving fax 
machine did not 
answer or the line is 
already engaged.Try again after a few 
minutes.
[Line Error]Your machine cannot 
connect with the 
receiving fax machine 
or has lost contact 
because of a problem 
with the phone line.Try again. If the problem 
persists, wait an hour or 
so for the line to clear and 
try again. Or, turn the 
ECM mode on. See page 
50.
[Stop Pressed] Stop/Clear has been 
pressed during an 
operation.Try again.
BOOTP problem
Auto IP RunThe IP address 
assignment is failed. 
This happens, when 
Auto IP for BOOTP is 
set in SyncThru Web 
Service. Change the IP address 
assignment method to 
DHCP or Static. If you do 
not change this option, 
the BOOTP server 
continually asks to assign 
the IP Address.
BOOTP problem
Reconfigure DHCPThe IP address 
assignment is failed. 
This happens, when 
Auto IP for BOOTP is 
not set in SyncThru 
Web Service.Change the IP address 
assignment method to 
DHCP or Static. If you do 
not change this option, 
the BOOTP server 
continually asks to assign 
the IP Address.
DHCP problem: 
Auto IP RunThe IP address 
assignment is failed. 
This happens, when 
Auto IP for DHCP is 
set in SyncThru Web 
Service.Change the IP address 
assignment method to 
BOOTP or Static. If you 
do not change this option, 
the DHCP server 
continually asks to assign 
the IP Address.
DHCP problem
Reconfigure 
BOOTPThe IP address 
assignment is failed. 
This happens, when 
Auto IP for DHCP is 
not set in SyncThru 
Web Service.Change the IP address 
assignment method to 
BOOTP or Static. If you 
do not change this option, 
the DHCP server 
continually asks to assign 
the IP Address.
Document Jam.
Remove JamThe loaded original 
has jammed in the 
ADF.Clear the jam (See 
Clearing original 
document jams on 
page 91).
Door Open.
Close itThe front cover is not 
securely latched.Close the cover until it 
locks into place.
MESSAGEMEANINGSUGGESTED 
SOLUTIONS
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							Troubleshooting_ 96
End of life
Replace new cartThe indicated toner 
cartridge has reached 
its estimated cartridge 
life. The printer stops 
printing.
 Estimated 
cartridge life 
means the 
expected or 
estimated toner 
cartridge life, 
which indicates 
the average 
capacity of 
print-outs and is 
designed 
pursuant to 
ISO/IEC
 19798 
(See Available supplies on 
page 107).
The number of 
pages may be 
affected by 
operating 
environment, 
printing interval, 
media type, and 
media size. 
Some amount of 
toner may 
remain in the 
cartridge even 
when End of 
life Replace 
new cart 
appears and the 
printer stops 
printing.
Replace the toner 
cartridge (See Replacing 
the toner cartridge on 
page 107).
Error [error number]
Turn off then on A systematic error has 
occurredReboot the power and try 
the printing job again. If 
the problem persists, call 
for service.
Install TonerThe toner cartridge is 
installed improperly, 
or not installed.Reinstall the toner 
cartridge two or three 
times to confirm it is 
seated properly. If the 
problem persists, the 
toner cartridge is not 
being detected. Contact 
the service 
representatives.
Load [media size] in 
[tray number]There is no 
corresponding paper 
in the corresponding 
tray.Load corresponding 
paper in the 
corresponding tray (See 
Loading paper in the 
tray on page 47).
MESSAGEMEANINGSUGGESTED 
SOLUTIONS
Memory Full
Remove JobThe memory is full. Press the left/right arrow 
to highlight Cancel or 
Start, then press OK. If 
you select Cancel, the 
machine stops the fax 
job. If you select Start, 
the machine only sends 
scanned documents of 
the fax job. 
Network Problem:
IP ConflictThe IP address is 
used elsewhere. Check the IP address or 
obtain a new IP address.
No AnswerThe receiving fax 
machine has not 
answered after 
several redial 
attempts.Try again. Make sure that 
the receiving machine is 
operational.
Not Compatible
toner cartridgeThe toner cartridge is 
not suitable for your 
machine.Install the corresponding 
toner cartridge with a 
Samsung-genuine 
cartridge (See Replacing 
the toner cartridge on 
page 107).
Output bin Full
Remove paperThe output tray is full. 
Or the sensor is not 
facing down.Remove papers from the 
output tray, the machine 
resumes printing. Or 
make sure the sensor is 
facing down. If the 
problem persists, call for 
service.
Paper Empty
in [tray number] There is no paper in 
the indicated tray.Load paper in the tray 
(See Loading paper in 
the tray on page 47).
Pulled Out
[tray number] 
CassetteThe indicated tray 
cassette is not 
inserted, or not 
properly closed.To close the tray, lower 
the rear edge, align it with 
the slot, and slide it into 
the printer.
Paper Jam
in MP TrayPaper has jammed in 
the manual tray area.Clear the jam (See In the 
manual tray on 
page 93).
Paper Jam
in Tray 1Paper has jammed in 
the tray1 area.Clear the jam (See In 
tray 1 on page 93).
Paper Jam
inside machinePaper has jammed 
inside the machine.Clear the jam (See 
Inside the machine on 
page 93).
Paper Jam
in exit areaSpecial print media 
has jammed in the 
paper exit area.Clear the jam.
•See In exit area on page 94.
•See In the manual tray on page 93)
MESSAGEMEANINGSUGGESTED 
SOLUTIONS
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							Troubleshooting_ 97
Prepare new 
cartridgeSmall amount of toner 
is left in the indicated 
cartridge. The 
estimated cartridge 
life of toner is close.Prepare a new cartridge 
for a replacement. You 
may temporarily increase 
the printing quality by 
redistributing the toner 
(See Redistributing 
toner on page 91).
Remove seal tape 
&Install TonerThe machine cannot 
detect a toner 
cartridge.Remove the sealing tape 
from the toner cartridge.
Refer to Quick Install 
Guide.
Replace TonerThe toner cartridge 
has almost reached its 
estimated cartridge 
life.You can choose between 
Stop or Continue as 
shown on the control 
panel. If you select Stop, 
the printer stops printing 
and you cannot print any 
more without changing 
the cartridge. If you select 
Continue, the printer 
keeps printing but the 
printing quality cannot be 
guaranteed.
Replace the toner 
cartridge for the best print 
quality when this 
message appears. Using 
a cartridge beyond this 
stage can result in 
printing quality issues 
(See Replacing the toner 
cartridge on page 107).
 
Samsung does not 
recommend using 
non-genuine 
Samsung toner 
cartridge such as 
refilled or 
remanufactured. 
Samsung cannot 
guarantee 
non-genuine 
Samsung toner 
cartridges quality. 
Service or repair 
required as a result 
of using 
non-genuine 
Samsung toner 
cartridges will not 
be covered under 
the machine 
warranty.
MESSAGEMEANINGSUGGESTED 
SOLUTIONS
Replace new 
Fuser unitThe life of the fuser 
unit has expired.Replace the fuser unit 
with a new one. Contact 
the service 
representatives.
Self Diagnostics
Please waitThe engine in your 
printer is checking 
some problems 
detected.Please wait a few 
minutes.
Too many Faxes
Remove JobToo many faxes are 
received.Remove received fax.
MESSAGEMEANINGSUGGESTED 
SOLUTIONS
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							Troubleshooting_ 98
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, call for service.
Power problems
 Click this link to open an animation about power problems.
•Plug
 in the power cord and press (power) 
on the control panel.
• Disconnect the machine cable and reconnect 
it.
- F
or Local Printing
-For Network Printing  (network model 
only) 
Paper feeding problems
• Check the maximum paper capacity of the 
tray (See  Print media specifications on 
page  111 ).
• M
ake sure that you are using the correct type 
of paper (See  Print media specifications on 
page  111 ).
• Re
move paper from the tray and flex or fan 
the paper.
•Humid conditions may cause some paper to 
stick together.
•Remove any obstructions from inside the 
machine.
• P
aper has not been loaded correctly. Remove 
paper from the tray and reload it correctly.
• T
here is too much paper in the tray. Remove 
excess paper from the tray.
• T
he paper is too thick. Use only paper that 
meets the specifications required by the 
machine (See  Print media specifications on 
page  111 ).
•If an original does not feed into the machine, 
the document feeder rubber pad may require 
to be replaced. Contact a service 
representative.
•There is too much paper in the tray. Remove 
excess paper from the tray. If you are printing 
on special materials, use the manual tray.
• A
n incorrect type of paper is being used. Use 
only paper that meets the specifications 
required by the machine (See  Print media 
specifications on page  111 ).
• T
here may be debris inside the machine. 
Open the front door and remove any debris.
•If an original does not feed into the machine, 
the document feeder rubber pad may need to 
be replaced. Contact a service representative.
CONDITIONSUGGESTED SOLUTIONS
The machine is 
not receiving 
power, 
or the connection 
cable between the 
computer and the 
machine is not 
connected 
properly.
CONDITIONSUGGESTED SOLUTIONS
Paper jams during 
printing. Clear the paper jam (See Clearing paper jams 
on page 93).
Paper sticks 
together.
Multiple sheets of 
paper do not feed.Different types of paper may be stacked in the 
tray. Load paper of only one type, size, and 
weight.
Paper does not feed 
into the machine.
The paper keeps 
jamming.
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.
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							Troubleshooting_ 99
Printing problems
CONDITIONPOSSIBLE 
CAUSESUGGESTED 
SOLUTIONS
The machine 
does not print.The machine is not 
receiving power.Check the power cord 
connections.
The machine is not 
selected as the 
default machine.Select your machine as your 
default machine in your 
Windows.
Check the machine for the following:
•The front door is not closed. Close the front 
door.
•Paper is jammed. Clear the paper jam (See Clearing paper jams on page 93).
•No paper is loaded. Load paper (See Loading 
paper in the tray on page 47).
•The toner cartridge is not installed. Install the 
toner cartridge.
If a system error occurs, contact your service 
representative.
The connection 
cable between the 
computer and the 
machine is not 
connected properly.Disconnect the machine 
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 machine cable.
The port setting is 
incorrect.Check the Windows printer 
setting to make sure that the 
print job is sent to the correct 
port. 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 Printing 
Preferences to ensure that 
all of the print settings are 
correct (See Opening 
printing preferences on 
page 53).
The printer driver 
may be incorrectly 
installed.Repair the machine software 
(See Installing USB 
connected machine’s driver 
on page 31, Installing wired 
network or USB connected 
machine’s driver on 
page 37).
The machine is 
malfunctioning.Check the display message 
on the control panel to see if 
the machine is indicating a 
system error. Contact a 
service representative.
The machine 
does not print. The document size 
is so big that the 
hard disk space of 
the computer is 
insufficient to 
access the print job.Get more hard disk space 
and print the document 
again.
The output tray is 
full.Once the paper is removed 
from the output tray, the 
machine resumes printing.
The machine 
selects print 
materials from 
the wrong paper 
source.The paper option 
that was selected in 
the Printing 
Preferences may 
be incorrect.For many software 
applications, the paper 
source selection is found 
under the Paper tab within 
the Printing Preferences. 
Select the correct paper 
source. See the printer 
driver help screen (See 
Opening printing 
preferences on page 53).
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.
Half the page is 
blank.The page 
orientation setting 
may be incorrect.Change the page orientation 
in your application. See the 
printer driver help screen.
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 
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 machine cable 
is loose or 
defective.Disconnect the machine 
cable and reconnect. Try a 
print job that you have 
already printed successfully. 
If possible, attach the cable 
and the machine to another 
computer that you know 
works and try a print job. 
Finally, try a new machine 
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 back on again.
CONDITIONPOSSIBLE 
CAUSESUGGESTED 
SOLUTIONS
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							Troubleshooting_ 100
Printing quality problems
If the inside of the machine is dirty or paper has been loaded improperly, 
there might be a reduction in print quality. See the table below to clear the 
problem. 
Pages print, but 
they are blank. The toner cartridge 
is defective or out of 
toner. Redistribute the toner, if 
necessary. 
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 machine 
does not print 
PDF file correctly. 
Some parts of 
graphics, text, or 
illustrations are 
missing.Incompatibility 
between the PDF 
file and the Acrobat 
products.
Printing the PDF file as an 
image may enable the file to 
print. Turn on Print As 
Image
 from the Acrobat 
printing options. 
 It will take longer to 
print when you print a 
PDF file as an image.
The print quality 
of photos is not 
good. Images are 
not clear. The resolution of 
the photo is very 
low. 
Reduce the photo size. If 
you increase the photo size 
in the software application, 
the resolution will be 
reduced. 
Before printing, 
the machine 
emits vapor near 
the output tray.Using damp paper 
can cause vapor 
during printing.
This is not a problem. Just 
keep printing.
The machine 
does not print 
special- sized 
paper, such as 
billing paper.Paper size and 
paper size setting 
do not match.
Set the correct paper size in 
the 
Custom Paper Size 
Settings  in the Paper tab in 
the  Printing Preferences  
(See Opening printing 
preferences on page 53).
CONDITIONPOSSIBLE  CAUSESUGGESTED SOLUTIONSCONDITIONSUGGESTED 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  Redistributing toner 
on page  91 ). If this does not improve the print 
quality, install a new toner cartridge.
• The
 paper may not meet paper specifications; 
for example, the paper may be too moist or 
rough (See  Print media specifications on 
page  111 ).
• If th
e 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 help screen of 
the printer driver.
• A co
mbination of faded or smeared defects 
may indicate that the toner cartridge needs 
cleaning (See  Cleaning the inside on 
page  88 ).
• The
 surface of the LSU part inside the 
machine may be dirty (See  Cleaning the 
inside on page  88 ).
AaBb Cc
Aa Bb Cc
Aa Bb Cc
Aa Bb Cc
Aa Bb Cc
Toner specks• The paper may not meet specifications; for 
example, the paper may be too moist or rough 
(See  Print media specifications on 
page  111 ).
• T
he transfer roller may be dirty. Clean the 
inside of your machine. Contact a service 
representative.
• The
 paper path may need cleaning. Contact a 
service representative.
AaBbC
AaBbC
AaBbC
AaBbC
AaBbC
DropoutsIf faded areas, generally rounded, occur 
randomly on the page:
• A s
ingle sheet of paper may be defective. 
Try reprinting the job.
• Th
e moisture content of the paper is uneven 
or the paper has moist spots on its surface. 
Try a different brand of paper (See  Print 
media specifications on page  111 ).
• Th
e paper lot is bad. The manufacturing 
processes can cause some areas to reject 
toner. Try a different kind or brand of paper.
• C
hange the printer option and try again. Go 
to Printing Preferences , click Paper tab, 
and set type to  Thick (See Opening printing 
preferences on page  53 ).
• If 
these steps do not correct the problem, 
contact a service representative.
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