Samsung CLP 550N User Manual

MAINTAINING YOUR PRINTER6.31
6
Cleaning the Inside of the Printer
NOTE: While cleaning the inside of the printer, be careful not to 
touch the transfer roller. Oil from your fingers can cause print 
quality problems.
1Turn the printer off and unplug the power cord, then wait a 
few minutes for the printer to cool.
2Using the handle, completely open the left cover until it is at 
right angles to the main frame and the toner cartridges are 
ejected.
CAUTION: If the left cover is not completely open, the...

MAINTAINING YOUR PRINTER6.32
3Pull the handle lightly first, and then holding the toner 
cartridges, remove them from the printer. Set them on a 
clean flat surface. 
4Press the top cover release button to unlatch the top cover 
and open it all the way.
CAUTION: If you open the left cover for a few minutes, the 
imaging unit can be exposed to light. This causes damage to the 
imaging unit. Close the top and left cover should the setup need to 
be halted for any reason....

MAINTAINING YOUR PRINTER6.33
6
5Pull the lock levers on each side towards you, as shown 
below, to release the transfer belt.
6Using the handle, lift the transfer belt out of the printer by 
lightly pulling it towards the left of the printer. Set it on a 
clean flat surface. 
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MAINTAINING YOUR PRINTER6.34
7Lift the handle of the imaging unit and use it to pull the 
imaging unit out of the printer. Set it on a clean flat surface.
CAUTIONS: 
• To prevent damage, do not expose the imaging unit to light for 
more than a few minutes. Cover it with black paper, if necessary.
• Close the top and left cover should the setup need to be halted 
for any reason.
• Do not touch the surface of the green roller on the imaging unit 
or print quality problems can occur.
8Look inside the...

MAINTAINING YOUR PRINTER6.35
6
9Insert the imaging unit back into the printer. Make sure you 
hear it click, and then fold the handle down. For details, see 
steps 9 to 10 on page 6.17.
CAUTION: Replace the imaging unit carefully so as not to scratch 
and damage the surface of the green roller on the imaging unit. 
10Insert the transfer belt back into the printer. Press it firmly 
to make sure it fits into place. For details, see steps 9 and 
10 on page 6.25.
NOTE: Keep the transfer belt level and do not...

MAINTAINING YOUR PRINTER6.36
11Firmly push the lock levers on each side towards the top 
cover, as shown below, to lock the transfer belt into place.
12After making sure that the left cover is open, close the top 
cover. Make sure that it is securely latched.
CAUTION: Do not try to close the left cover with the top cover 
open. This may cause damage to the printer.
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MAINTAINING YOUR PRINTER6.37
6
13Look inside the printer on the right and then locate the color 
of the toner cartridges that matches the color of the slot.
14Holding each toner cartridge, insert them into their 
corresponding positions in order of Cyan, Magenta, Yellow 
and then Black. Using both hands, grip the cartridge to 
insert into the slot. Then hold the handle to slide the 
cartridge in.
When the toner cartridges are correctly installed, the yellow 
and black cartridges are not fully inserted....

MAINTAINING YOUR PRINTER6.38
15Close the left cover. Make sure that it is securely latched.
If you have installed the toner cartridges incorrectly, the left 
cover will not close properly. Check again to make sure the 
cartridge colors correspond to those marked on the right 
hand side. Never use force to close the cover.
16Plug the power cord in and turn the printer on.
Replacement Parts
From time to time, you will need to replace the roller and fuser 
unit to maintain top performance and avoid print...

2
This chapter describes how to use the printer’s control 
panel.
This chapter includes:
• Understanding the Control Panel
• Using Control Panel Menus
USING THE CONTROL PANEL...

SOLVING PROBLEMS7.2
Troubleshooting Checklist
If the printer is not working properly, consult the following 
checklist. If the printer does not pass a step, follow the 
corresponding troubleshooting suggestions.
CheckSolution
Make sure that the 
On Line/Continue 
button on the control panel 
is green and “Ready” is 
shown on the display. • If the button backlight is off, check the power cord 
connection. Check the power switch. Check the power 
source by plugging it into another outlet.
• If the button...