Replacing the Toner Cartridge
The machine displays a message when the amount remaining in the toner cartridge is low. Note that the print quality may suffer if you continue printing without resolving this issue. You can check the amount remaining in the toner cartridges on the display (Checking the Remaining Amount of Consumables).
When a Message Appear
The message that is displayed depends on the amount remaining in the toner cartridges. Depending on which message is displayed, prepare a new toner cartridge (Consumables) or replace the current toner cartridge with a new one (Procedure for Replacing the Toner Cartridge).
<Preparing a toner cart. is recommended.> 
This message notifies you that the toner cartridge needs to be replaced soon. Make sure that you have a replacement toner cartridge ready. Replace the toner cartridge if you see this message before you start to print a large job.
 When this message is displayed
When copying or printing, you can continue printing the original.
Specify when this message is displayed
You can set any value as the percentage of the amount remaining in the toner cartridge that triggers this message. <Displ. Timing for Cartridge Prep. Notif.>
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<Toner cart. life end. Replcmt. recommended.>
This message notifies you that the toner cartridge has reached the end of its lifetime. It is recommended that you replace the toner cartridge with a new one. You can continue printing, but the print quality cannot be guaranteed.
Select <Status Monitor> in the Home screen 
<Error Information/Notification> <Toner Cartridge End of Lifetime> to display the procedure for replacing the toner cartridge.
<Error Information/Notification> <Toner Cartridge End of Lifetime> to display the procedure for replacing the toner cartridge.|
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To replace a consumable
Press and hold the [Reset] key. On the <Output Report> screen, print the consumables status report to find out the cartridge name. Printing Reports and Lists
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Procedure for Replacing the Toner Cartridge
When you replace the toner cartridge, simple instructions on the replacement procedure are displayed on the screen. See the on-screen instructions as well as the following procedure.
1
Lift the operation panel, close the paper stopper, and then open the toner cover.
2
Remove the toner cartridge.
Do not shake or tilt the toner cartridge. Also, make sure to avoid applying shocks to the toner cartridge, such as by hitting it against something. Doing so may cause the toner left in the toner cartridge to leak. Remove the toner cartridge gently at the same angle as the slot.
3
Remove the new toner cartridge from the protective package.
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1
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Pull the tab of the protective package on a flat place.
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2
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Pull out the toner cartridge.
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4
Shake the toner cartridge 5 or 6 times as shown below to evenly distribute the toner inside the cartridge, and then place it on a flat surface.
5
Replace the toner cartridge.
6
Close the toner cover, and lower the operation panel.