Samsung SF 650 User Manual

Maintenance_ 50
The right end of the white roller has a plastic bush that is snapped shut with small tab on it. Pull the tab inward slightly 
then lift the tab until the roller is rel eased. Lift the roller upwards and to the right, releasing the left end of the roller, then 
rotate the bushing until it reach a slot. Then pull the roller upward.
4. Wipe the roller surface with a soft cloth dampened with water.
5.Carefully wipe the scanning gl ass with a soft dry cloth.
If the glass is very dirty, first...

Maintenance_ 51
7.Reconnect the support and the control panel  and then close the control panel firmly until it clicks into place.
Cleaning the drum
If there are streaks or spots on your machine,  the OPC drum of the cartridge may require cleaning.
1. Before setting the cle
 aning procedure, make sure that paper is loaded in the machine.
2. Press  Menu until Maintenance appears.
3. Press the
  left/right arrow until  Clean Drum appears and press  OK.
4. Press the
  left/right arrow until  On appears and...

Maintenance_ 52
Tips for moving & storing your machine
•When moving the machine, do not tilt or turn it upside down. Otherwise, the inside of the machine may be 
contaminated by toner, which can cause damage to the machine or bad print quality.
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Troubleshooting_ 53
8. 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:
•White streaks or light printing occurs. 
•Pr
epare new cartridge  appears on the...

Troubleshooting_ 54
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.
Input Misfeed
1.Remove any remaining pages from the document feeder.
2. Pull the jammed document ge ntly out of the document feeder.
3.Load...

Troubleshooting_ 55
Exit Misfeed
1.Remove any remaining pages from the document feeder.
2. Ope
n the control panel by gripping it on the bottom edge and pulling it.
3.Pull the document gently out of the document feeder.
4.Close the control panel. Then load the documents back into the document feeder.
Tips for avoiding paper curls
1.Open the rear door.
2. Pull down th
 e pressure lever on each side.
 Keep the rear cover opened during printing. 
Only use when the printout has more than 20 mm curl....

Troubleshooting_ 56
Tips for avoiding paper jams
By selecting the correct media types, most paper jams c an be avoided. When a paper jam occurs, refer to the next 
guidelines. 
• Ensur
e that the adjustable guides  are positioned correctly (See Loading paper in the tray on page  29).
• Do not over
 load the tray. Ensure that the paper level is  below the paper capacity mark on the inside of the tray.
• Do not r
 emove paper from the tray while your machine is printing.
• Flex, fan, and straighten paper...

Troubleshooting_ 57
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. Ope
n the front door and pull the toner cartridge out, lightly pushing it down.
2.Remove the jammed paper by gently pulling it straight out.
3.Replace the toner cartridge and close the fr ont door. Printing automatically resumes.
In exit area
 Click this link to open an animation about clearing a jam.
1. Ope
n and close the front...

Troubleshooting_ 58
2.Gently 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. Ope
n the rear door.
4.Pull the pr
 essure 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 an
 d remove he paper.
Return the pressure levers to their original position.
 The fuser area is hot. Take care when removing paper from the machine.
6. Clo
se...

Troubleshooting_ 59
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, restart the machine and try the desired job again. If the problem persists, call for 
service.
•When you call for service, provide the service representative with the contents of display...