OKI C710dn User Manual

81 – C710n User’s Guide
2.Note the positions of the four toner cartridges (a) and image 
drums (b). It is essential that they go back in the same order.
a
b
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82 – C710n User’s Guide
3.Holding it by its top centre, lift the image drum, complete 
with its toner cartridge, up and out of the printer.
4.Put the assembly down gently onto a piece of paper to 
prevent toner from marking your furniture and to avoid 
damaging the green drum surface.
CAUTION!
The green image drum surface at the base of the ID 
unit is very delicate and light sensitive. Do not touch it 
and do not expose it to normal room light for more 
than 5 minutes. If the drum unit needs to be out...

83 – C710n User’s Guide
5.With the colored toner release lever (1) to the right, pull the 
lever towards you. This will release the bond between the 
toner cartridge and the image drum unit.
6.Lift the right-hand end of the toner cartridge (1) and then draw 
the cartridge to the right to release the left-hand end as 
shown (2), and 
withdraw the toner cartridge out of the image drum 
cartridge. Place the cartridge on a piece of paper to avoid marking your 
furniture.
7.Take the new image drum cartridge...

84 – C710n User’s Guide
8.Place the toner cartridge onto the new image drum cartridge 
as shown. Push the left end in first, and then lower the right 
end in. (It is not necessary to fit a new toner cartridge at this 
time unless the remaining toner level is very low.)
9.Push the colored release lever away from you to lock the 
toner cartridge onto the new image drum unit and release 
toner into it.
2
1
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85 – C710n User’s Guide
10.Holding the complete assembly by its top centre, lower it into 
place in the printer, locating the pegs at each end into their 
slots in the sides of the printer cavity.
11.Finally, close the top cover and press down firmly at both 
sides so that the cover latches closed.
Replacing the Transfer Belt Unit ____
The belt unit is located under the four image drums. This unit 
requires replacement approximately every 60,000 pages.
Switch off the printer and allow the fuser to cool...

86 – C710n User’s Guide
1.Press the cover release and open the printer’s top cover 
fully.
2.Note the positions of the four toner cartridges (a) and image 
drums (b). It is e
ssential that they go back in the same order. 
WARNING!
If the printer has been powered on, the fuser will be 
hot. This area is clearly labelled. Do not touch.
a
b
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87 – C710n User’s Guide
3.Lift each of the image drum units out of the printer and place 
them in a safe place away from direct sources of heat and 
light.
CAUTION!
The green image drum surface at the base of each 
cartridge is very delicate and light sensitive. Do not 
touch it and do not expose it to normal room light for 
more than 5 minutes. If the drum unit needs to be out 
of the printer for longer than this, please wrap the 
cartridge inside a black plastic bag to keep it away 
from light. Never...

88 – C710n User’s Guide
4.Locate the two fasteners (a) at each side of the belt and the lifting 
bar
 (b) at the front end.
5.Turn the two fasteners 90° to the left. This will release the 
belt from the printer chassis.
6.Pull the lifting bar (b) upwards so that the belt tilts up towards the 
front, and withdraw the belt unit (c) from the printer.
7.Lower the new belt unit into place, with the lifting bar at the 
front and the drive gear towards the rear of the printer. 
Locate the drive gear into the...

89 – C710n User’s Guide
rear left corner of the unit, and lower the belt unit flat inside 
the printer.
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90 – C710n User’s Guide
8.Turn the two fasteners (a) 90° to the right until they lock. This will 
secure the belt unit in place.
9.Replace the four image drums, complete with their toner 
cartridges, into the printer in the same sequence as they 
came out: cyan (nearest the rear), magenta, yellow and 
black (nearest the front).
10.Finally, close the top cover and press down firmly at both 
sides so that the cover latches closed.
a
a
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