OKI C3600n User Manual

							Replacing consumable items > 41
IMAGE DRUM REPLACEMENT.
The printer contains four image drums: cyan, magenta, yellow and black.
1.Press the cover release and open the printer’s top cover fully.
2.Note the positions of the four cartridges.
3.Holding it by its top centre, lift the image drum, complete with its toner cartridge, up 
and out of the printer.
CAUTION!
 Static sensitive devices, handle with care. 
WARNING!
If the printer has been powered on, the fuser will be hot. This area is 
clearly labelled. Do not touch.
1. Cyan cartridge 2. Magenta cartridge
3. Yellow cartridge 4. Black cartridge
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							Replacing consumable items > 42
4.Put the assembly down gently on to a piece of paper to avoid damaging the green 
drum surface.
5.With the coloured 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 
cartridge.
Lift the right-hand end of the cartridge and then draw the cartridge to the right to 
release the left-hand end as shown, and withdraw the toner cartridge out of the image 
drum cartridge. Place the cartridge on a piece of paper to avoid marking your 
furniture.
6.Take the new image drum cartridge out of its packaging and place it on the piece of 
paper where the old cartridge was placed. Keep it the same way round as the old 
unit. Pack the old cartridge inside the packaging material for disposal.
7.Remove the protective sheets from the image drum unit (a), (b) & (c). Pack the old 
ID unit inside the packaging material for disposal.
Remove transit packing (d).
CAUTION!
The green image drum surface at the base of the 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 expose the 
drum to direct sunlight or very bright room lighting.
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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.)
Push the coloured release lever (1) away from you to lock the toner cartridge onto 
the new image drum unit and release toner into it.
9.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.
10.Finally, close the top cover.
NOTE
If you need to return or transport your printer for any reason, please make sure 
you remove the image drum unit beforehand and place in the bag provided. This 
is to avoid toner spillage.
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							Replacing consumable items > 44
REPLACING THE 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 for about 10 minutes before opening the 
cover.
1.Press the cover release and open the printer’s top cover fully.
2.Note the positions of the four cartridges. It is essential that they go back in the same 
order 
3.Lift each of the image drum units out of the printer (1) and place them in a safe 
place away from direct sources of heat and light (2).
WARNING!
If the printer has been powered on, the fuser will be hot. This area is 
clearly labelled. Do not touch.
1. Cyan cartridge 2. Magenta cartridge
3. Yellow cartridge 4. Black cartridge
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 expose the 
drum to direct sunlight or very bright room lighting.
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							Replacing consumable items > 45
4.Locate the two fasteners (1) at each side of the belt and the lifting bar (2) 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 (2) upwards so that belt tilts up towards the front, and withdraw 
the belt unit 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 gear inside the printer 
by the rear left corner of the unit, and lower the belt unit flat inside the printer.
Turn the two fasteners (1) 90° to the right until they lock. This will secure the belt 
unit in place.
8.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).
9.Finally, close the top cover and press down firmly at both sides so that the cover 
latches closed.
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							Replacing consumable items > 46
FUSER REPLACEMENT
The fuser is located inside the printer just behind the four image drum units.
Switch off the printer and allow the fuser to cool for about 10 minutes before opening the 
cover.
1.Press the cover release and open the printer’s top cover fully.
2.Identify the fuser handle (1) on the top of the fuser unit.
Pull the two fuser retaining levers (2) towards the front of the printer so that they are 
fully upright.
Holding the fuser by its handle (1), lift the fuser straight up and out of the printer. If 
the fuser is still warm, place it on a flat surface which will not be damaged by heat.
3.Remove the new fuser from its packaging and remove the transit material.
4.Holding the new fuser by its handle, make sure that it is the correct way round. The 
retaining levers (2) should be fully upright, and the two locating lugs (3) should be 
towards you.
5.Lower the fuser into the printer, locating the two lugs (3) into their slots in the metal 
partition which separates the fuser area from the image drums.
6.Push the two retaining levers (2) towards the rear of the printer to lock the fuser in 
place.
7.Finally, close the top cover.
WARNING!
If the printer has recently been powered on, some fuser components 
will be very hot. Handle the fuser with extreme care, holding it only by 
its handle, which will only be mildly warm to the touch. A warning label 
clearly indicates the area. If in doubt, switch the printer off and wait at 
least 10 minutes for the fuser to cool before opening the printer cover.
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CLEANING THE LED HEAD
Clean the LED head when printing does not come out clearly, has white lines or when text 
is blurred.
1.Switch off the printer and open the top cover.
2.Gently wipe the LED head surface with LED lens cleaner or soft tissue.
3.Close the top cover.
CAUTION!
Do not use methyl alcohol or other solvents on the LED head as 
damage to the lens surface will occur.
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							Troubleshooting > 48
TROUBLESHOOTING
CLEARING PAPER JAMS
Provided that you follow the recommendations in this guide on use of print media, and you 
keep the media in good condition prior to use, your printer should give years of reliable 
service. However, paper jams occasionally do occur, and this section explains how to clear 
them quickly and simply.
Jams can occur due to paper misfeeding from a paper tray or at any point on the paper 
path through the printer. When a jam occurs, the printer immediately stops, and the Alert 
LED on the Status Panel (together with the Status Monitor) informs you of the event. If 
printing multiple pages (or copies), do not assume that, having cleared an obvious sheet, 
others will not also be stopped somewhere along the path. These must also be removed in 
order to clear the jam fully and restore normal operation.
1.If a sheet is well advanced out of the top of the printer, simply grip it and pull gently 
to draw it fully out. If it does not remove easily, do not use excessive force. It can be 
removed from the rear later.
2.Press the cover release and open the printer’s top cover fully.
WARNING!
If the printer has been powered on, the fuser will be hot. This area 
is clearly labelled. Do not touch.
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3.Note the positions of the 4 cartridges.
It will be necessary to remove the four image drums to gain access to the paper path.
4.Holding it by its top centre, lift the cyan image drum, complete with its toner 
cartridge, up and out of the printer.
5.Put the assembly down gently onto a piece of paper to avoid damaging the green 
drum surface.
1. Cyan cartridge 2. Magenta cartridge
3. Yellow cartridge 4. Black cartridge
CAUTION!
The green image drum surface at the base of the 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 expose the drum to 
direct sunlight or very bright room lighting.
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6.Repeat this removal procedure for each of the remaining image drum units. Cover 
the image drum units to protect them from direct light.
7.Look into the printer to check whether any sheets of paper are visible on any part of 
the belt unit.
8.Remove any sheets of paper as follows: 
>To remove a sheet with its leading edge at the front of the belt, carefully lift the 
sheet from the belt and pull it forwards into the internal drum cavity and 
withdraw the sheet.
>To remove a sheet from the central area of the belt, carefully separate the sheet 
from the belt surface and withdraw the sheet.
CAUTION!
Do not use any sharp or abrasive objects to separate sheets from the 
belt. This may damage the belt surface.
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