Toner cartridge

Service life of the toner cartridge

To check the remaining toner amount, select the toner of each color in [Configuration] - [Supplies Status] from the operator panel.

Replacement cycle of the toner cartridge

When the time for replacement is approaching or has arrived, the following message appears on the display.


When the time for replacement is approaching
When the time for replacement has arrived
Displayed message

Cyan/Magenta/Yellow/Black (K)Toner Low.

Cyan/Magenta/Yellow/Black (K) Toner Is Empty. Replace With A New Toner Cartridge.

Response to the message
Prepare a new toner cartridge of the displayed color.
Replace the toner cartridge with a new one.
State of this machine

Printing is possible, but the toner of the displayed color is low.

The toner of the displayed color is empty. Printing stops.

About 200 pages can be printed from when the time for replacement is approaching to when the time for replacement has arrived. (This is the reference value in the case of A4 simplex printing with a density of 5%.)


  • Printing quality will decline after the toner cartridge stays unpacked for one year or longer. Therefore, prepare a new toner cartridge.
  • Use genuine OKI consumables for optimum performance.
  • Failures caused by using non-genuine consumables may void the warranty or maintenance contract. (The use of non-genuine consumables will not necessarily cause failures, but please fully take notice of such usage.)
  • Printing under the following conditions may damage the image drum. Replace the toner cartridge immediately.
    • Opening and closing the front cover with toner empty
    • Printing in mono without cyan (blue), magenta (red) or yellow (yellow) toner
  • Replace the toner cartridge immediately when a message indicating replacement of the toner cartridge is displayed and printing has stopped.
  • If you repeatedly open and close the front cover so that you can continue printing temporarily, a failure may be caused or the print quality may be degraded.
    In addition, after a certain period of time, printing will be disabled even if you open and close the front cover. (The printable period of time varies with the usage condition.)