Konica Minolta magicolor 4650DN User Manual

							Replacing Consumables 157
11Use DATE on the SYS DEFAULT MENU/CLOCK menu to set the date, 
and use 
TIME on the SYS DEFAULT MENU/CLOCK menu to set the 
time.
Replacing the Fuser Unit
When the time to replace the fuser unit is reached, the message FUSER 
UNIT/END OF LIFE
 appears. Printing can continue even after this mes-
sage appears; however, since the print quality is reduced, the fuser unit 
should be replaced immediately
1Turn off the printer.
Note
There are extremely hot parts within the machine. Before replacing the 
fuser unit, wait about 20 minutes after turning off the machine, and then 
check that the fusing section has reached room temperature, otherwise, 
you may get burnt.
2Pull the lever, and then open the 
right side cover.
Before opening the right side 
cover, fold up Tray 1.
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							Replacing Consumables 158
3Use a coin to loosen the two 
screws securing the fuser unit. 
4Remove the fuser unit.
5Prepare a new fuser unit.
Be careful not to touch the 
surface of the fuser roller.
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							Replacing Consumables 159
6Insert the fuser unit.
7Tighten the two screws to secure 
the fuser unit. 
8Close the right side cover.
9Reset the counter in the MAINTENANCE MENU/SUPPLIES/
REPLACE/FUSER UNIT
 menu.
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							Replacing Consumables 160
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							Maintaining the
Printer
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							Maintaining the Printer 162
Maintaining the Printer
CAUTION
Read all caution and warning labels carefully, making sure to follow any 
instructions contained in them. These labels are located on the inside of 
the printer’s covers and the interior of the printer body.
Handle the printer with care to preserve its life. Abuse handling may cause 
damage and void your warranty. If dust and paper scraps remain on the 
inside or outside of the printer, printer performance and print quality will suffer, 
so the printer should be cleaned periodically. Keep the following guidelines in 
mind.
WARNING!
Turn off the printer, unplug the power cord, and disconnect all interface 
cables before cleaning. Do not spill water or detergent into the printer; 
otherwise the printer will be damaged and an electric shock may occur.
CAUTION
The fuser unit is hot. When the right side cover is opened, the 
fuser unit temperature drops gradually (one hour wait time).
„Be careful when cleaning the inside of the printer or removing media mis-
feeds, as the fuser unit and other internal parts may be very hot.
„Do not place anything on top of the printer.
„Use a soft cloth to clean the printer.
„Never spray cleaning solutions directly on the printer’s surface; the spray 
could penetrate through the air vents of the printer and damage the inter-
nal circuits.
„Avoid using abrasive or corrosive solutions or solutions that contain sol-
vents (such as alcohol and benzene) to clean the printer.
„Always test any cleaning solution (such as mild detergent) on a small 
inconspicuous area of your printer to check the solution’s performance.
„Never use sharp or rough implements, such as wire or plastic cleaning 
pads.
„Always close the printer’s covers gently. Never subject the printer to vibra-
tion.
„Do not cover the printer immediately after using it. Turn it off and wait until 
it cools down.
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							Maintaining the Printer 163
„Do not leave the printer’s covers open for any length of time, especially in 
well-lit places; light may damage the toner cartridges.
„Do not open the printer during printing.
„Do not tap media stacks on the printer.
„Do not lubricate or disassemble the printer.
„Do not tilt the printer.
„Do not touch the electrical contacts, gears, or laser devices. Doing so 
may damage the printer and cause the print quality to deteriorate.
„Keep media in the output tray at a minimum level. If the media is stocked 
too high, your printer may experience media misfeeds and excessive 
media curl.
„Make sure two people are avail-
able to lift the printer when mov-
ing it.
Keep the printer level to avoid 
toner spillage.
„When lifting the printer, fold up 
Tray 1, and then lift the printer as 
shown in the illustration at the 
right.
If the optional lower feeder unit 
is installed, move it and the 
printer separately. Do not grasp 
the grip of Tray 3, or the right 
side cover; otherwise, the lower 
feeder unit may be damaged.
„If you get toner on your skin, wash it off with cool water and a mild soap.
CAUTION
If you get toner in your eyes, wash it out immediately with cool water 
and consult a doctor.
„Make sure any parts removed during cleaning are replaced before you 
plug in the printer.
37 kg81.5 lbs81.5 lbs
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							Cleaning the Printer 164
Cleaning the Printer
CAUTION
Be sure to turn off the printer and unplug the power cord before 
cleaning.
Exterior
Control Panel Ventilation Grill
Printer Exterior
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							Cleaning the Printer 165 Media Rollers
The accumulation of paper dust and other debris on the media rollers can 
cause media-feeding problems. 
Cleaning the Media Feed Rollers (Manual Feed Tray)
1Open Tray 1.
2Press down on the center of the 
paper-lifting plate until the left 
and right locking tabs (white) 
lock into place.
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							Cleaning the Printer 166
3Clean the media feed rollers by 
wiping them with a soft, dry 
cloth.
4Close the tray.
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