Magenta cartridge empty

When installing the cartridges, it is important that you insert them from left to right with the black cartridge first and the magenta cartridge last. The reason for this is because the magenta cartridge has a clip on top of it that goes into the cartridge door sensor. The clip needs to push the sensor in so the printer is able to function with the cartridge door open. If you insert the magenta cartridge first, the printer will think the cartridge door is closed and you will get a error message for the other missing cartridges.

OK now this might seem bizarre, but did you go ahead and click the "Black Only" print option?

I have a C6180. Just installed all new cartridges. Tried to print and got the message that Cyan is empty. Tried all sorts of things. Then out of frustration clicked the Black Onl option. Document came out printed in color! Double checked with a picture that has lots of cyan colors. It all printed too! Go figure.

All the ink tanks should be red with no flashing.
The tanks that are flashing or have no red light on , need to be replaced.

maybe the cartridge is wrong, release it and clean the electrical contacts, put them again one by one, if notting happen, try this
Solution As the printer operates, it moves ink from the ink cartridges into a printhead reservoir. The printer does not deliver a message when an ink cartridge goes empty, because it still has ink in the reservoir. The printer continues printing until the ink level in the reservoir falls to a first trigger point - then a message appears advising the printer owner to Replace Cartridges Soon . At this point, other cartridges that are empty but have not reached the trigger point are also mentioned in the message, to save trips to the retailer. After the first trigger point, the printer can continue printing until ink levels in the reservoir reach a second trigger point. At the second trigger point there is only enough ink left to perform vital servicing tasks, and a new message appears, saying Ink Cartridges Empty . The options offered depend on the usable inks remaining. If no options are offered, the cartridges indicated must be replaced before printing can continue. The Ink Cartridges Empty options are described in the table below: Ink colors out Option Print mode possible All Cancel None Black

AND

Cyan, Magenta, or Yellow (any or all) Black only Continue with other colors Cyan/Magenta/Yellow mode (composite black)

Text and photo quality will differ from those printed when all colors are available Light Cyan or Light Magenta (either or both) Cyan, Magenta, or Yellow (any or all)

(Black still available) Print with black ink only Grayscale

That is a magenta toner empty message, either the magenta cartridge is empty or there is an issue with the magenta toner dispensing.

I called the OKI help number, in the manual, and they told me that the second line of the error message, was just an additional reminder, to replace the magenta toner.

maybe it have the ink level chip which can be resetted by removing the cartridge and oning and offing the printer for 5 times within 10 minutes coz it saves data of a cartridge upto 5 use before only.. and 6th time insert it.

Hi armaskopljak:
You have replaced the toner cartridge but you still have to replace the imaging unit which is the drom that the toner cartridge attaches to.
Toner Cartridge OK, Low, Empty When 15,000
(high-capacity cartridge) or
7,500 (standard-capacity
cartridge) pages are
printed (5% print density).
Imaging Units At/Near end-of-life When 30,000 pages are
printed out or when the
pixel counts are
exceeded.
A fuse in the new
imaging unit will blow
upon installation,
resetting the counter.
Verify color calibration. Clean lenses.

Xerox Part Numbers

Toner Cartridges:
Standard Capacity Yellow 016-1975-00
Standard Capacity Magenta 016-1974-00
‘ Standard Capacity Cyan 016-1973-00
Standard Capacity Black 016-1976-00
High Capacity Yellow 016-1979-00
High Capacity Magenta 016-1978-00
High Capacity Cyan 016-1977-00
High Capacity Black 016-1980-00

Imaging Units
Cyan 016-1993-00
Magenta 016-1994-00
Yellow 016-1995-00
Black 016-1996-00
Hope this helps

I replaced the old cartridge with a new one (Magenta) and it still asks me to replace it with a new cartridge.  
For 1 colour which is LOW, it stopped me completely from PRINTING or COPYING at all. 
Any clues how to fix this?

The tape method worked for me on my 1960C. I put duct tape over the window in the front. If there's a place you can see ink, cover it up.