OKI C710cdtn User Manual

61 – C710n User’s Guide
Paper Sensor Error Codes _________
* (if fitted).
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.
CODE #LOCATIONCODE #LOCATION
370 Duplex unit * 382 Paper exit
371 Duplex unit * 383 Duplex unit *
372 Duplex unit * 390 MP Tray
373 Duplex unit * 391 Paper Tray
380 Paper feed 392
2
nd Paper tray 
*
381 Paper path 400...

62 – C710n User’s Guide
2.Press the cover release and open the printer’s top cover fully.
3.Note the positions of the four toner cartridges (a) and image 
drums (b). It is essential that they go back in the same order.
It will be necessary to remove the four image drums to gain 
access to the paper path.
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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63 – C710n User’s Guide
4.Holding it by its top centre, lift the cyan image drum, 
complete with its toner cartridge, up and out of the printer.
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64 – C710n User’s Guide
5.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, and cover.
6.Repeat this removal procedure for each of the remaining 
image drum units.
CAUTION!
The green image drum surface at the base of the 
Image Drum is very delicate and light sensitive. Do 
not touch it and do not expose it to normal room light 
for more than 5 minutes.
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65 – C710n User’s Guide
7.Look into the printer to check whether any sheets of paper 
are visible on any part of the belt unit.
(a) To remove a sheet with its leading edge at the front of the 
belt
 (1), carefully lift the sheet from the belt and pull it 
CAUTION!
Do not use any sharp or abrasive objects to separate 
sheets from the belt. This may damage the belt 
surface.
4
2 3
1
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66 – C710n User’s Guide
forwards into the internal drum cavity and withdraw the 
sheet.
(b) To remove a sheet from the central area of the belt (2), 
carefully separate the sheet from the belt surface and 
withdraw the sheet.
(c) To remove a sheet just entering the fuser (3), separate 
the trailing edge of the sheet from the belt, push the fuser 
pressure release lever
 (4) towards the front and down to 
release the fuser’s grip on the sheet, and withdraw the 
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67 – C710n User’s Guide
sheet through the drum cavity area. Then allow the 
pressure release lever to rise again.
(d) To remove a sheet in the fuser; push the two retaining 
levers
 (a) towards the rear of the printer to release the 
fuser. Withdraw the fuser unit using the handle (b).
Press release lever (c) and pull the trapped paper from the 
fuser.
Note:
If the sheet is well advanced into the fuser (only a short 
length is still visible), do not attempt to pull it back. 
Follow the next steps.
a
b
a...

68 – C710n User’s Guide
(e) Replace fuser unit into the machine and move locking 
levers (a) toward the rear of the machine.
b
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69 – C710n User’s Guide
8.Starting with the cyan image drum unit nearest the fuser, 
replace the four image drums into the drum cavity, making 
sure to locate them in the correct order.
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.
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70 – C710n User’s Guide
9.Lower the top cover but do not press down to latch it closed 
yet. This will protect the drums from excessive exposure to 
room lighting while you check the remaining areas for 
jammed sheets.
10.Open the rear exit tray (a) and check for a sheet of paper in 
the rear path area
 (b).
• Pull out any sheets found in this area.
• If the sheet is low down in this area and difficult to 
remove, it is probably still gripped by the fuser. In this case 
raise the top cover, reach around...